JFEスチール株式会社 (JP Patent Analysis Report)
The Applicant / Patent Holder "JFEスチール株式会社" had 242 patent application filings in the most recent period (2023-01-01 to 2023-03-31). This is a small decreased of -8 filings (-3.2%) over 250 they had in the same period of the previous year (2022-01-01 to 2022-03-31).
The highest number of filings in 2015 with 994 cases, and their lowest number in 2018 with 710 cases.
The mean of the number of filings over the last 5 years (2018 to 2023, 4,330 cases in total) is 722, and the median is 750. The coefficient of variation (standard deviation/mean) is 0.12, and there have been small fluctuations in the number of filings from year to year.
| Index | Value |
|---|---|
| Average | 722 patents |
| Std Dev | 88.8 |
| COV | 0.12 |
The number of filings has been increasing for the last 3 years (2020 to 2023).
| Year | Cases | YOY |
|---|---|---|
| 2022 year | 816 cases | +8.22 % |
| 2021 year | 754 cases | +1.21 % |
| 2020 year | 745 cases | -3.12 % |
This report provides the latest patent analysis information (the IP landscape, including a patent map) on the patent search results of the JP patent database for JFEスチール株式会社 for the period of the last 10 years (2014-01-01 to 2024-11-30). You can compare the information in this report with the trends in your competitors’ patent filings and technologies, and use it to search for important patents.
This service provides, free of charge, a patent analysis report based on the latest patent data (Japanese, U.S., European, and PCT application publications) for use in patent searches, patent analysis, and IP landscaping. The service is offered by "Patent Integration" a firm specializing in patent search/patent analysis.
This report includes basic information to help you understand the IP strategy and management of JFEスチール株式会社, such as changes in the number of patents/patent applications they have filed, comparisons of the numbers of patents/patent applications filed by their peers and competitors, their top coapplicants (joint research partners, alliance partners), and their most important patents. It can be used in various intellectual property business operations such as IP landscaping, patent search/patent analysis, preparation of intellectual property business evaluation reports, selection of M&A candidates, and selection of alliance partners.
- Table of Contents
- Foreign Patent Analysis Report
- Patent Filing Summary for JFEスチール株式会社
- Search Set (Search Formula/Analysis Patents)
- Related Patent Analysis Report
- Competitors Information
- Top coapplicant Information
- • Information on Important Patents
- Provision of patent information to the media
- About this Site
He is a patent attorney at a patent office. He specializes in invention counseling, patent filing, and intellectual property strategies for start-up companies and new businesses in the fields of software, information technology and artificial intelligence. He runs a patent course for beginners on Udemy, an online course provider.
After studying physics at the University of Tokyo as a doctoral student, he was engaged in intellectual property analysis and technology trend research as an in-house patent attorney at a precision equipment manufacturer and at Toyota Central R&D Labs. Inc..
Introduction
The concept of the "IP landscape" (IPL) has been attracting attention recently.
An IP landscape is not limited to patent information, but also integrates and analyzes business information (e.g., non-patent information such as papers, news releases, stock information, and market information). Intellectual-property-based business management is realized through the analysis of intellectual property information applied to the formulation of management strategies and business strategies. This is a comprehensive approach that includes but not limited to planning of open and closed strategies, selecting M&A candidates, searching for alliance partners, and formulating intellectual property strategies, through the exploitation of intellectual property information.
IP landscaping usually includes patent search and patent analysis. In patent search and patent analysis, it is important to grasp the market position of each company and the overall technological trends and development trends for each technology. More specifically, it is important to understand what intellectual property your own company and other companies hold, what the strengths and weaknesses of other companies are, and how other companies are trying to exploit their intellectual property. In other words, it is important to understand both the business strategy and the intellectual property strategy of each company.
After reading this search report, you may be interested in more detailed patent searches and patent analysis. We offer a service called Patent Integration, which is an integrated patent search and patent analysis service. With reasonable pricing and a simple user interface such that even beginners can quickly search for and analyze patent information by company or technology from a web browser, please consider using it for detailed patent searches, patent analysis, and IP landscaping.
Patent Integration has a patent-landscaping function that can visually represent a set of tens of thousands of patents/patent applications. This allows you to convincingly show the technical positions of your company and its competitors to your management and business strategists in order to formulate management strategies and business strategies.
JFEスチール株式会社, Changes in the Number of JP Patents/Patent Applications
The changes in the number of patent filings of JFEスチール株式会社 over the last 20 years (JP) are shown below.
The change in the number of patents/patent applications is the most basic index in patent analysis. By examining the change in the number of patents/patent applications, you can see the status of technological development and R&D focus for each company or technology. It should be noted that since there is a one and a half year lag between the filing and the laying open of patent applications, it is not possible to analyze the situation more recently than one and half years prior to the present.
In this report, you can only see the change in the number of patents/patent applications by company or technology, whereas Patent Integration allows you to quickly compare the number of patent applications with your competitors in each technical field by cross-referencing with other keywords and patent classifications.
Patent Landscape ({{ld.d.db_name | country_map: 'en'}})
Patent landscaping is a visualization of the distribution of patent filings (application focus areas) for each technical keyword. Mountains and islands indicated by heatmap contours represent clusters of patent applications filed, and red areas on the heatmap indicate many patent filings relating to the keyword.
The patent landscape for JFEスチール株式会社 gives an intuitive understanding of what patent filings they have made and what technical position is to be established. By selecting filing year checkboxes and filtering, you can track their past filing trends (what technical area they have focused on).
By selecting applicant/patent holder checkboxes and filtering, you can visually grasp the technical areas of the filings for each applicant and the partnerships or alliances formed. Please use it as a guide for patent analysis and IP landscaping.
In addition, by visually representing the patent data in this manner, you can convincingly show the technical positions of your company and its competitors to your management and business strategists in order to formulate management strategies and business strategies.
In Patent Integration, you can check the specifics of a patent filing by clicking anywhere on the patent landscape screen. You can also quickly check the position of each applicant for each technical field by cross-referencing with other keywords and patent classifications. You can use it as a guide when considering hypotheses about each company's IP strategy on the IP Landscape. You can also use it for higher-grade intellectual property activities. It has reasonable pricing and a simple user interface that is easy for beginners to handle.
Characteristic Terms (Importance)
The following is a list of words (characteristic terms) often used in JFEスチール株式会社 patent applications. Characteristic terms with a higher importance are used in more patents/patent applications.
Search Set (Analysis Patents)
This patent analysis report was created for a patent search set of 7,984 cases retrieved by applying the following search formula and analysis period to the following patent database. Patent information such as a patent analysis result, a patent map, and a patent landscape can be freely used for patent searches, analysis, and work on intellectual property strategies, including IP landscaping.
JFEスチール株式会社
Same industry / competition company information (JP)
The number of patents and changes in the number of patents of other companies (competitors) in the same industry as JFEスチール株式会社 are shown below.
Comparison of changes in the number of patents with peers and competitors is an important analytical index for understanding the intellectual property strategies of each company. By checking the transition of the number of patents for each company / competitor, you can check the status of focus on technology development and R&D for each company / technology.
It should be noted that patents have a time lag of one and a half years from filing to publication, so it is not possible to analyze the situation more recent than one and a half years.
If you want to find out more information, " Patent Integration , You can compare the number of patent applications with competitors in each technical field in a short time by multiplying with other keywords and patent classifications.Please use it for more detailed patent information analysis such as selection of M&A candidate destinations and alliance destinations.
Trends in filing of joint patent applications in the last 3 years (2022 to 2024).
Comparing the number of applications of each company, JFEスチール株式会社 has the highest number of joint applications in the last in the last 3 years (2022 to 2024) with 1,440 cases, followed by 日本製鉄株式会社 with 1,040 cases.
| Name | Cases |
|---|---|
| JFEスチール株式会社 | 1,440 cases |
| 日本製鉄株式会社 | 1,040 cases |
| 株式会社神戸製鋼所 | 382 cases |
Trends in filing of joint patent applications for the target period (2014 to 2024).
Comparing the number of applications of each company, 日本製鉄株式会社 has the highest number of joint applications in the last for the target period (2014 to 2024) with 10,071 cases, followed by JFEスチール株式会社 with 7,984 cases.
| Name | Cases |
|---|---|
| 日本製鉄株式会社 | 10,071 cases |
| JFEスチール株式会社 | 7,984 cases |
| 株式会社神戸製鋼所 | 4,300 cases |
Same industry / competition company, Change in the Number of JP Patents
Below is a patent map showing changes in the number of applications for JP patents of 3 companies in the same industry over the past 20 years.
Top coapplicant information (JP)
The changes in the number of patents shared with JFEスチール株式会社’s top coapplicants are shown below.
By searching for the top coapplicants, you can discover what companies JFEスチール株式会社 is partnered with to develop technologies and use this information for R&D and intellectual property strategies.
Also, by looking at the change in the number of filings, you can see what companies JFEスチール株式会社 conducted joint research with in the past, and check the history of JFEスチール株式会社’s alliances, partnerships, and joint research and development.
If you want to search for more detailed information, you can use Patent Integration to quickly find out specifically what company they filed a joint application with and what invention it was for.
Trends in filing of joint patent applications in the last 3 years (2022 to 2024).
Among the top coapplicants, 日本製鉄株式会社 has the highest number of joint applications in the last in the last 3 years (2022 to 2024) with 6 cases, followed by 株式会社神戸製鋼所 with 4 cases.
| Name | Cases |
|---|---|
| 日本製鉄株式会社 | 6 cases |
| 株式会社神戸製鋼所 | 4 cases |
| JFEエンジニアリング株式会社 | 1 cases |
Trends in filing of joint patent applications for the target period (2014 to 2024).
Among the top coapplicants, 株式会社神戸製鋼所 has the highest number of joint applications in the last for the target period (2014 to 2024) with 60 cases, followed by 日本製鉄株式会社 with 53 cases.
| Name | Cases |
|---|---|
| 株式会社神戸製鋼所 | 60 cases |
| 日本製鉄株式会社 | 53 cases |
| JFEエンジニアリング株式会社 | 8 cases |
Top coapplicant, Change in the Number of JP Patents
Below is a ranking of the number of JP patent applications by JFEスチール株式会社’s top 6 coapplicants over the last 20 years.
Below is a patent map showing the changes in the numbers of JP patent filings by JFEスチール株式会社’s top 6 coapplicants over the last 20 years.
Top coapplicant Details (JP)
Trends in filing of joint patent applications with 株式会社神戸製鋼所
JFEスチール株式会社 filed 60 joint applications with 株式会社神戸製鋼所 for the analysis period (2014 to 2024).
The mean of the number of filings over the last 5 years (2018 to 2023, 31 cases in total) is 5.2, and the median is 5.0. The coefficient of variation (standard deviation/mean) is 0.5, and there have been big fluctuations in the number of filings from year to year.
The number of filings has been decreasing for the last 3 years (2020 to 2023). The highest number of filings in 2014 with 12 cases, and their lowest number in 2017 with 2 cases.
| Index | Value |
|---|---|
| Average | 5.2 patents |
| Std Dev | 2.7 |
| COV | 0.5 |
| Year | Cases | YOY |
|---|---|---|
| 2022 year | 3 cases | -62.5 % |
| 2021 year | 8 cases | +60.0 % |
| 2020 year | 5 cases | 0 |
Trends in filing of joint patent applications with 日本製鉄株式会社
JFEスチール株式会社 filed 53 joint applications with 日本製鉄株式会社 for the analysis period (2014 to 2024).
The mean of the number of filings over the last 5 years (2018 to 2023, 27 cases in total) is 4.5, and the median is 4.0. The coefficient of variation (standard deviation/mean) is 0.5, and there have been big fluctuations in the number of filings from year to year.
The number of filings has been decreasing for the last 3 years (2020 to 2023). The highest number of filings in 2014 with 11 cases, and their lowest number in 2022 with 2 cases.
| Index | Value |
|---|---|
| Average | 4.5 patents |
| Std Dev | 2.2 |
| COV | 0.5 |
| Year | Cases | YOY |
|---|---|---|
| 2022 year | 2 cases | -33.3 % |
| 2021 year | 3 cases | -40.0 % |
| 2020 year | 5 cases | +25.00 % |
Trends in filing of joint patent applications with JFEエンジニアリング株式会社
JFEスチール株式会社 filed 8 joint applications with JFEエンジニアリング株式会社 for the analysis period (2014 to 2024).
The mean of the number of filings over the last 5 years (2018 to 2023, 5 cases in total) is 0.8, and the median is 0.5. The coefficient of variation (standard deviation/mean) is 1.1, and there have been very big fluctuations in the number of filings from year to year.
The number of filings has been decreasing for the last 3 years (2020 to 2023). The highest number of filings in 2014 with 2 cases, and their lowest number in 2020 with 0 cases.
| Index | Value |
|---|---|
| Average | 0.8 patents |
| Std Dev | 0.9 |
| COV | 1.1 |
| Year | Cases | YOY |
|---|---|---|
| 2022 year | 1 cases | -50.0 % |
| 2021 year | 2 cases | - |
| 2020 year | 0 cases | -100 % |
Information on important patents (JP)
The following shows JP patents held by JFEスチール株式会社 that have had an invalidation trial against them demanded or an opposition filed against them by a third party, and JFEスチール株式会社’s JP patents/patent applications of high importance cited by Examiners in patent examination processes.
By noting the most important patents, you can obtain knowledge of the competitive business environment in which JFEスチール株式会社 is placed (e.g., whether it is a fiercely competitive environment or an oligopolistic market and the like). In general, it can be understood that a company with a large number of demands for invalidation trials is developing their business in a business environment where IP disputes are common.
If you want to search for more detailed information, you can use Patent Integration to retrieve and download by company cited patents/patent applications or patents undergoing invalidation trials. You can quickly extract important patents from a patent set that includes multiple competitors by cross-referencing with other keywords and patent classifications. Please consider using it for searches for important patents/patent applications.
Glossary
- Cited
- Indicates that the patent/patent application has been cited (by Examiners) in notices of reasons for rejection in the examination process of other (Japanese, U.S., or European) patent applications. The higher the number of citations, the more important the patent/patent application is considered to be.
- Request for invalidation trial
- Indicates that a third party has requested a procedure to invalidate the patent. It is likely to affect the business of third parties and is considered to be of high importance.
- Opposition
- Indicates that a third party has filed a petition with the Patent Office to hear the validity of the patent again. Like the trial for invalidation, it is considered to be of high importance.
- Information provision
- Indicates that a third party has provided the Patent Office with useful information for examination for the patent filed. It is usually considered to be of high importance because it is done to prevent the patent from being granted.
- Browsing request
- Indicates that a third party has requested the Patent Office to view the patent bag (a set of documents exchanged between the Patent Office and the applicant). The bag is often checked prior to trial for invalidation, opposition, and provision of information, and is considered to be a highly important patent.
Invalidationed Trial cases
Top Patents/Patent Applications with the Highest Number of Invalidationed Trial
Of the patent applications filed in the last 10 years (2014-12-01 to 2024-11-30), 1 patents/patent applications were invalidation trial more than once in the examination process of other patent applications. The mean of the number of invalidation trial is 1.0. The most invalidation trial patent is 特許6538584 "ガス吹き込みノズル用耐火物の製造方法" (1 times) .
| - | No. | Title | |
|---|---|---|---|
| 1 | 特許6538584 | ガス吹き込みノズル用耐火物の製造方法 | 1 times |
Oppositioned cases
List of latest Oppositioned patents
In the last 3 years (2021-12-01 ~ 2024-11-30), there were 34 patents Opposition from third parties. The average number of Opposition is 1.0 times. The most recently Opposition patent is 特許7468680 "鉄イオン供給用鉄基粉末およびそれを用いた植物育成改善材" (Opposition day 2024-10-09) , next is 特許7447871 "焼結鉱およびその製造方法、ならびに、水素還元用の焼結鉱およびその製造方法" (Opposition day 2024-09-11) .
| - | No. | Title | Opposition days |
|---|---|---|---|
| 1 | 特許7468680 | 鉄イオン供給用鉄基粉末およびそれを用いた植物育成改善材 | 2024-10-09 |
| 2 | 特許7447871 | 焼結鉱およびその製造方法、ならびに、水素還元用の焼結鉱およびその製造方法 | 2024-09-11 |
| 3 | 特許7456560 | 焼結用炭材、焼結鉱及び焼結用炭材の製造方法 | 2024-09-10 |
| 4 | 特許7409580 | 炉温制御装置、炉温制御方法及びコークスの製造方法 | 2024-07-09 |
| 5 | 特許7335143 | 段差を有する床スラブ付き鉄骨梁 | 2024-02-29 |
| 6 | 特許7338618 | 燃料電池のセパレータのオーステナイト系ステンレス鋼板およびその製造方法 | 2024-02-26 |
| 7 | 特許7314030 | 開口を有する床スラブ付き鉄骨梁およびその補強方法 | 2024-01-25 |
| 8 | 特許7331874 | 調質圧延機のバックアップロール、調質圧延機および調質圧延方法 | 2024-01-17 |
| 9 | 特許7287416 | 厚鋼板の製造仕様決定支援装置および製造仕様探索方法、コンピュータプログラム、コンピュータ読み取り可能な記録媒体ならびに厚鋼板の製造方法 | 2023-12-06 |
| 10 | 特許7276044 | ブロック耐火物 | 2023-11-13 |
Protested cases
List of latest Protested patents
In the last 3 years (2021-12-01 ~ 2024-11-30), there were 39 patents Protest from third parties. The average number of Protest is 1.2 times. The most recently Protest patent is 特開2024-052561 "溶接構造物用厚鋼板及びその製造方法、溶接部欠陥発生予測モデルの生成方法、並びに溶接構造物" (Protest day 2024-11-20) , next is 特開2024-020697 "非対称フランジ部を有するプレス成形品の製造方法" (Protest day 2024-10-25) .
| - | No. | Title | Protest days |
|---|---|---|---|
| 1 | 特開2024-052561 | 溶接構造物用厚鋼板及びその製造方法、溶接部欠陥発生予測モデルの生成方法、並びに溶接構造物 | 2024-11-20 |
| 2 | 特開2024-020697 | 非対称フランジ部を有するプレス成形品の製造方法 | 2024-10-25 |
| 3 | 特開2024-107769 | スクリューコンベア | 2024-10-15 |
| 4 | 特開2023-146182 | 溶接組立箱形断面部材およびその設計方法 | 2024-09-30 |
| 5 | 特許7605162 | Ｈ形鋼 | 2024-09-03 |
| 6 | 特開2023-179318 | 鋼矢板及びその製造方法 | 2024-08-27 |
| 7 | 特開2024-000976 | 傾斜圧延方法および継目無鋼管の製造方法 | 2024-08-07 |
| 8 | 特開2023-152869 | ポリエチレン被覆鋼管の製造方法 | 2024-04-30 |
| 9 | 特許7602202 | 還元用焼成ペレットとその製造方法 | 2024-04-26 |
| 10 | 特許7497700 | 還元鉄の製造方法 | 2024-04-04 |
| 11 | 特開2023-149372 | 大梁・小梁接合構造 | 2024-03-19 |
| 12 | 特許5967862 | 鋼管杭式桟橋 | 2024-03-15 |
| 13 | 特許7416107 | ＲＨ真空脱ガス槽の下部槽構造及びＲＨ真空脱ガス設備 | 2024-01-24 |
| 14 | 特許7559728 | 継目無鋼管および鋼管の製造方法 | 2024-01-19 |
| 15 | 特許7522992 | カーボン含有不焼成れんが耐火物及びカーボン含有不焼成れんが耐火物の製造方法 | 2023-12-19 |
| 16 | 特開2023-094019 | カーボン含有焼成れんが耐火物及びカーボン含有焼成れんが耐火物の製造方法 | 2023-12-19 |
| 17 | 特許7597019 | 製鉄用容器および製鉄用容器の操業方法 | 2023-12-19 |
| 18 | 特許7533413 | 耐疲労き裂伝播特性に優れた鋼板の製造方法 | 2023-11-30 |
| 19 | 特許7552545 | 耐疲労き裂伝播特性に優れた鋼板の製造方法 | 2023-11-30 |
| 20 | 特許7517291 | 柱梁接合部の構造 | 2023-11-14 |
Top Patents/Patent Applications with the Highest Number of Protested
Of the patent applications filed in the last 10 years (2014-12-01 to 2024-11-30), 93 patents/patent applications were protest more than once in the examination process of other patent applications. The mean of the number of protest is 1.1. The most protest patent is 特許7230094 "高圧水素容器" (4 times) , and the next most protest patent is 特許6613919 "焼鈍分離剤用粉末、および方向性電磁鋼板の製造方法" (2 times) .
| - | No. | Title | |
|---|---|---|---|
| 1 | 特許7230094 | 高圧水素容器 | 4 times |
| 2 | 特許6613919 | 焼鈍分離剤用粉末、および方向性電磁鋼板の製造方法 | 2 times |
| 3 | 特許6669109 | 熱間圧延用ロール外層材および熱間圧延用複合ロール | 2 times |
| 4 | 特許6658412 | 塗装耐久性に優れた構造用鋼材および構造物 | 2 times |
| 5 | 特許6339985 | 水中の二酸化塩素濃度を低減させる方法及び水中の二酸化塩素濃度を低減させる水処理剤 | 2 times |
Inspectioned cases
List of latest Inspectioned patents
In the last 3 years (2021-12-01 ~ 2024-11-30), there were 37 patents Inspection from third parties. The average number of Inspection is 1.2 times. The most recently Inspection patent is 特開2024-020697 "非対称フランジ部を有するプレス成形品の製造方法" (Inspection day 2024-11-19) , next is 特開2024-107769 "スクリューコンベア" (Inspection day 2024-10-24) .
| - | No. | Title | Inspection days |
|---|---|---|---|
| 1 | 特開2024-020697 | 非対称フランジ部を有するプレス成形品の製造方法 | 2024-11-19 |
| 2 | 特開2024-107769 | スクリューコンベア | 2024-10-24 |
| 3 | 特開2023-146182 | 溶接組立箱形断面部材およびその設計方法 | 2024-10-09 |
| 4 | 特許7605162 | Ｈ形鋼 | 2024-10-01 |
| 5 | 特開2024-000976 | 傾斜圧延方法および継目無鋼管の製造方法 | 2024-09-04 |
| 6 | 特許5884165 | 方向性電磁鋼板およびその製造方法 | 2024-06-25 |
| 7 | 特開2023-152869 | ポリエチレン被覆鋼管の製造方法 | 2024-05-29 |
| 8 | 特許7602202 | 還元用焼成ペレットとその製造方法 | 2024-05-07 |
| 9 | 特許7497700 | 還元鉄の製造方法 | 2024-04-10 |
| 10 | 特開2023-149372 | 大梁・小梁接合構造 | 2024-04-09 |
| 11 | 特許7559728 | 継目無鋼管および鋼管の製造方法 | 2024-02-13 |
| 12 | 特許7522992 | カーボン含有不焼成れんが耐火物及びカーボン含有不焼成れんが耐火物の製造方法 | 2024-01-19 |
| 13 | 特開2023-094019 | カーボン含有焼成れんが耐火物及びカーボン含有焼成れんが耐火物の製造方法 | 2024-01-19 |
| 14 | 特許5581897 | 高炉操業方法 | 2024-01-19 |
| 15 | 特許7597019 | 製鉄用容器および製鉄用容器の操業方法 | 2024-01-19 |
| 16 | 特許7533413 | 耐疲労き裂伝播特性に優れた鋼板の製造方法 | 2023-12-05 |
| 17 | 特許7552545 | 耐疲労き裂伝播特性に優れた鋼板の製造方法 | 2023-12-05 |
| 18 | 特許7517291 | 柱梁接合部の構造 | 2023-12-05 |
| 19 | 特許7506033 | 溶接組立Ｈ形鋼梁、柱梁接合構造 | 2023-11-16 |
| 20 | 特許7464033 | 高炉融着層の通気性推定方法、高炉融着層の通気性推定装置、及び高炉の操業方法 | 2023-10-27 |
Top Patents/Patent Applications with the Highest Number of Inspectioned
Of the patent applications filed in the last 10 years (2014-12-01 to 2024-11-30), 90 patents/patent applications were inspection more than once in the examination process of other patent applications. The mean of the number of inspection is 1.2. The most inspection patent is 特許7230094 "高圧水素容器" (3 times) , and the next most inspection patent is 特許6339985 "水中の二酸化塩素濃度を低減させる方法及び水中の二酸化塩素濃度を低減させる水処理剤" (3 times) .
| - | No. | Title | |
|---|---|---|---|
| 1 | 特許7230094 | 高圧水素容器 | 3 times |
| 2 | 特許6339985 | 水中の二酸化塩素濃度を低減させる方法及び水中の二酸化塩素濃度を低減させる水処理剤 | 3 times |
| 3 | 特許6468565 | モルタルおよびモジュールブロック | 2 times |
| 4 | 特許6669109 | 熱間圧延用ロール外層材および熱間圧延用複合ロール | 2 times |
| 5 | 特許6112131 | 溶融Ａｌ−Ｚｎ系めっき鋼板及びその製造方法 | 2 times |
Cited cases
Top Patents/Patent Applications with the Highest Number of Cited
Of the patent applications filed in the last 10 years (2014-12-01 to 2024-11-30), 1,669 patents/patent applications were cited more than once in the examination process of other patent applications. The mean of the number of cited is 2.4. The most cited patent is 特許7311041 "Ｆｅ系電気めっき鋼板，電着塗装鋼板，自動車部品，電着塗装鋼板の製造方法，及びＦｅ系電気めっき鋼板の製造方法" (64 times) , and the next most cited patent is 特許6245202 "レンガ構造体の補修方法及びコークス炉煙道の補修方法" (39 times) .
| - | No. | Title | |
|---|---|---|---|
| 1 | 特許7311041 | Ｆｅ系電気めっき鋼板，電着塗装鋼板，自動車部品，電着塗装鋼板の製造方法，及びＦｅ系電気めっき鋼板の製造方法 | 64 times |
| 2 | 特許6245202 | レンガ構造体の補修方法及びコークス炉煙道の補修方法 | 39 times |
| 3 | 特許6269971 | 無方向性電磁鋼板とモータコア | 25 times |
| 4 | 特許6065032 | 積層鉄心製造方法および積層鉄心 | 20 times |
| 5 | 特許5884210 | 高強度溶融亜鉛めっき鋼板の製造方法 | 19 times |
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