スピーカ (JP Patent Analysis Report)
The Technical Field "スピーカ" had 226 patent application filings in the most recent period (2023-01-01 to 2023-04-30). This is a significantly decreased of -190 filings (-45.7%) over 416 they had in the same period of the previous year (2022-01-01 to 2022-04-30). This report also includes technical terms related to " スピーカシステム ", " スピーカー ", " スピーカーシステム ", " ラウドスピーカ ", " ラウドスピーカー ", " 拡声器 " in the search set.
The highest number of filings in 2018 with 2,100 cases, and their lowest number in 2023 with 400 cases.
The mean of the number of filings over the last 5 years (2019 to 2024, 5,889 cases in total) is 982, and the median is 1,132. The coefficient of variation (standard deviation/mean) is 0.6, and there have been big fluctuations in the number of filings from year to year.
| Index | Value |
|---|---|
| Average | 982 patents |
| Std Dev | 569 |
| COV | 0.6 |
| Year | Cases | YOY |
|---|---|---|
| 2023 year | 400 cases | -63.3 % |
| 2022 year | 1,090 cases | -7.23 % |
| 2021 year | 1,175 cases | -17.54 % |
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 スピーカ for the period of the last 10 years (2015-01-01 to 2024-12-31). 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 スピーカ, 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.
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.
スピーカ, Changes in the Number of JP Patents/Patent Applications
The changes in the number of patent filings of スピーカ 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.
Search Set (Analysis Patents)
This patent analysis report was created for a patent search set of 13,723 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.
スピーカ
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 スピーカ 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 (2023 to 2025).
Comparing the number of applications of each company, 株式会社半導体エネルギー研究所 has the highest number of joint applications in the last in the last 3 years (2023 to 2025) with 14 cases, followed by ヤマハ株式会社 with 9 cases.
| Name | Cases |
|---|---|
| 株式会社半導体エネルギー研究所 | 14 cases |
| ヤマハ株式会社 | 9 cases |
| 三菱電機株式会社 | 6 cases |
| シャープ株式会社 | 6 cases |
| 株式会社東芝 | 3 cases |
| 株式会社日立製作所 | 2 cases |
| ソニーグループ株式会社 | 1 cases |
Trends in filing of joint patent applications for the target period (2015 to 2025).
Comparing the number of applications of each company, 株式会社半導体エネルギー研究所 has the highest number of joint applications in the last for the target period (2015 to 2025) with 651 cases, followed by ヤマハ株式会社 with 395 cases.
| Name | Cases |
|---|---|
| 株式会社半導体エネルギー研究所 | 651 cases |
| ヤマハ株式会社 | 395 cases |
| シャープ株式会社 | 229 cases |
| ソニーグループ株式会社 | 198 cases |
| 三菱電機株式会社 | 166 cases |
| パイオニア株式会社 | 122 cases |
| 株式会社東芝 | 65 cases |
| 株式会社日立製作所 | 33 cases |
| 日本電気株式会社 | 32 cases |
| パナソニックホールディングス株式会社 | 25 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 11 companies in the same industry over the past 20 years.
Top company information (JP)
The number of patents and changes in the number of patents of other companies (competitors) in the same industry as スピーカ 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 (2023 to 2025).
Among the top coapplicants, ヤマハ株式会社 has the highest number of joint applications in the last in the last 3 years (2023 to 2025) with 9 cases, followed by 三菱電機株式会社 with 6 cases.
| Name | Cases |
|---|---|
| ヤマハ株式会社 | 9 cases |
| 三菱電機株式会社 | 6 cases |
| シャープ株式会社 | 6 cases |
| ソニーグループ株式会社 | 1 cases |
Trends in filing of joint patent applications for the target period (2015 to 2025).
Among the top coapplicants, ヤマハ株式会社 has the highest number of joint applications in the last for the target period (2015 to 2025) with 395 cases, followed by シャープ株式会社 with 229 cases.
| Name | Cases |
|---|---|
| ヤマハ株式会社 | 395 cases |
| シャープ株式会社 | 229 cases |
| ソニーグループ株式会社 | 198 cases |
| 三菱電機株式会社 | 166 cases |
| パイオニア株式会社 | 122 cases |
| パナソニックホールディングス株式会社 | 25 cases |
Top company, Change in the Number of JP Patents
Below is a ranking of the number of JP patent applications by スピーカ’s top 7 coapplicants over the last 20 years.
Below is a patent map showing the changes in the numbers of JP patent filings by スピーカ’s top 7 coapplicants over the last 20 years.
Top company Details (JP)
Trends in filing of joint patent applications with パナソニックホールディングス株式会社
スピーカ filed 25 joint applications with パナソニックホールディングス株式会社 for the analysis period (2015 to 2025).
The mean of the number of filings over the last 5 years (2019 to 2024, 5 cases in total) is 0.8, and the median is 0. The coefficient of variation (standard deviation/mean) is 1.5, and there have been very big fluctuations in the number of filings from year to year.
The highest number of filings in 2018 with 12 cases, and their lowest number in 2023 with 0 cases.
| Index | Value |
|---|---|
| Average | 0.8 patents |
| Std Dev | 1.2 |
| COV | 1.5 |
| Year | Cases | YOY |
|---|---|---|
| 2020 year | 2 cases | -33.3 % |
| 2019 year | 3 cases | -75.0 % |
| 2018 year | 12 cases | +100 % |
Trends in filing of joint patent applications with ソニーグループ株式会社
スピーカ filed 198 joint applications with ソニーグループ株式会社 for the analysis period (2015 to 2025).
The mean of the number of filings over the last 5 years (2019 to 2024, 59 cases in total) is 9.8, and the median is 1.5. The coefficient of variation (standard deviation/mean) is 1.6, 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 (2021 to 2024). The highest number of filings in 2019 with 44 cases, and their lowest number in 2023 with 1 cases.
| Index | Value |
|---|---|
| Average | 9.8 patents |
| Std Dev | 15.7 |
| COV | 1.6 |
| Year | Cases | YOY |
|---|---|---|
| 2023 year | 1 cases | 0 |
| 2022 year | 1 cases | -50.0 % |
| 2021 year | 2 cases | -81.8 % |
Trends in filing of joint patent applications with ヤマハ株式会社
スピーカ filed 395 joint applications with ヤマハ株式会社 for the analysis period (2015 to 2025).
The mean of the number of filings over the last 5 years (2019 to 2024, 127 cases in total) is 21.2, and the median is 22.0. The coefficient of variation (standard deviation/mean) is 0.6, and there have been relatively large fluctuations in the number of filings from year to year.
The highest number of filings in 2017 with 75 cases, and their lowest number in 2023 with 9 cases.
| Index | Value |
|---|---|
| Average | 21.2 patents |
| Std Dev | 13.6 |
| COV | 0.6 |
| Year | Cases | YOY |
|---|---|---|
| 2023 year | 9 cases | -59.1 % |
| 2022 year | 22 cases | -37.1 % |
| 2021 year | 35 cases | -10.26 % |
Trends in filing of joint patent applications with パイオニア株式会社
スピーカ filed 122 joint applications with パイオニア株式会社 for the analysis period (2015 to 2025).
The mean of the number of filings over the last 5 years (2019 to 2024, 26 cases in total) is 4.3, and the median is 2.5. 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 (2021 to 2024). The highest number of filings in 2015 with 32 cases, and their lowest number in 2023 with 0 cases.
| Index | Value |
|---|---|
| Average | 4.3 patents |
| Std Dev | 4.8 |
| COV | 1.1 |
| Year | Cases | YOY |
|---|---|---|
| 2022 year | 1 cases | -87.5 % |
| 2021 year | 8 cases | +100 % |
| 2020 year | 4 cases | -69.2 % |
Trends in filing of joint patent applications with 三菱電機株式会社
スピーカ filed 166 joint applications with 三菱電機株式会社 for the analysis period (2015 to 2025).
The mean of the number of filings over the last 5 years (2019 to 2024, 76 cases in total) is 12.7, and the median is 13.5. The coefficient of variation (standard deviation/mean) is 0.6, and there have been relatively large fluctuations in the number of filings from year to year.
The number of filings has been decreasing for the last 3 years (2021 to 2024). The highest number of filings in 2018 with 31 cases, and their lowest number in 2023 with 6 cases.
| Index | Value |
|---|---|
| Average | 12.7 patents |
| Std Dev | 7.8 |
| COV | 0.6 |
| Year | Cases | YOY |
|---|---|---|
| 2023 year | 6 cases | -60.0 % |
| 2022 year | 15 cases | +25.00 % |
| 2021 year | 12 cases | -42.9 % |
Information on important patents (JP)
The following shows JP patents held by スピーカ that have had an invalidation trial against them demanded or an opposition filed against them by a third party, and スピーカ’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 スピーカ 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
List of latest Invalidationed Trial patents
In the last 3 years (2022-01-01 ~ 2024-12-31), there were 1 patents Invalidation Trial from third parties. The average number of Invalidation Trial is 1.0 times. The most recently Invalidation Trial patent is 特許6329679 "オーディオコントローラ、超音波スピーカ、オーディオシステム、及びプログラム" (Invalidation Trial day 2022-01-20) .
| - | No. | Title | Invalidation Trial days |
|---|---|---|---|
| 1 | 特許6329679 | オーディオコントローラ、超音波スピーカ、オーディオシステム、及びプログラム | 2022-01-20 |
Top Patents/Patent Applications with the Highest Number of Invalidationed Trial
Of the patent applications filed in the last 10 years (2015-01-01 to 2024-12-31), 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6329679 "オーディオコントローラ、超音波スピーカ、オーディオシステム、及びプログラム" (1 times) .
| - | No. | Title | |
|---|---|---|---|
| 1 | 特許6329679 | オーディオコントローラ、超音波スピーカ、オーディオシステム、及びプログラム | 1 times |
Oppositioned cases
List of latest Oppositioned patents
In the last 3 years (2022-01-01 ~ 2024-12-31), there were 8 patents Opposition from third parties. The average number of Opposition is 1.0 times. The most recently Opposition patent is 特許7246208 "避難誘導システム" (Opposition day 2023-09-21) , next is 特許7193526 "浴室環境で使用するバイオモニタリング・デバイス、方法、及びシステム" (Opposition day 2023-06-20) .
| - | No. | Title | Opposition days |
|---|---|---|---|
| 1 | 特許7246208 | 避難誘導システム | 2023-09-21 |
| 2 | 特許7193526 | 浴室環境で使用するバイオモニタリング・デバイス、方法、及びシステム | 2023-06-20 |
| 3 | 特許7077068 | 案内システムおよび案内プログラム | 2022-11-29 |
| 4 | 特許7042543 | 制御プログラム、制御装置および制御方法、ならびに、視聴質出力プログラム、視聴質出力装置および視聴質出力方法 | 2022-09-27 |
| 5 | 特許6955452 | 放送音形成装置、及び情報提示システム | 2022-04-25 |
| 6 | 特許6936004 | 遊技機 | 2022-03-11 |
| 7 | 特許6927942 | 放送装置、放送システム、及びコンピュータプログラム | 2022-03-01 |
| 8 | 特許6913334 | 表示装置および防犯支援プログラム | 2022-02-01 |
Protested cases
List of latest Protested patents
In the last 3 years (2022-01-01 ~ 2024-12-31), there were 27 patents Protest from third parties. The average number of Protest is 1.3 times. The most recently Protest patent is 特開2024-026821 "取引明細書作成装置、取引明細書作成方法およびプログラム" (Protest day 2024-12-06) , next is 特開2023-128949 "遊技機" (Protest day 2024-08-21) .
| - | No. | Title | Protest days |
|---|---|---|---|
| 1 | 特開2024-026821 | 取引明細書作成装置、取引明細書作成方法およびプログラム | 2024-12-06 |
| 2 | 特開2023-128949 | 遊技機 | 2024-08-21 |
| 3 | 特許7544468 | 防災設備 | 2024-07-31 |
| 4 | 特開2022-091408 | 機械式駐車装置の操作盤とその制御方法 | 2024-07-30 |
| 5 | 特開2022-107358 | 二多段式駐車装置とその制御方法 | 2024-07-24 |
| 6 | 特開2023-003567 | 吐水装置 | 2024-06-20 |
| 7 | 特開2023-100400 | 遊技機 | 2024-06-18 |
| 8 | 特開2022-045715 | スピーカー用振動板、スピーカー用振動板の製造方法、及びスピーカー | 2024-06-10 |
| 9 | 特許7546434 | インターホン機器 | 2024-04-04 |
| 10 | 特開2022-071503 | 報知装置 | 2024-03-07 |
| 11 | 特開2020-146454 | 滅菌装置 | 2024-02-26 |
| 12 | 特許7524871 | 遊技機 | 2023-11-22 |
| 13 | 特許7503608 | スチレン系樹脂組成物、難燃性スチレン系樹脂組成物及び成形体、並びにパッチアンテナ | 2023-10-31 |
| 14 | 特開2023-026756 | 遊技機 | 2023-09-20 |
| 15 | 特開2022-040121 | 有機圧電フィルム | 2023-08-08 |
| 16 | 特開2022-060304 | 防音室の火災対策構造 | 2023-05-30 |
| 17 | 再公表2019/088140 | 成形品 | 2023-03-17 |
| 18 | 特開2021-117797 | メッセージ送受信アプリケーションソフトウェア、メッセージ送受信システム | 2023-01-18 |
| 19 | 特許7429361 | 三次元誘電エラストマ構造体、三次元誘電エラストマ構造体を用いたスピーカ、および三次元誘電エラストマ構造体の製造方法 | 2022-12-08 |
| 20 | 特許7482609 | 放送用設備 | 2022-11-14 |
Top Patents/Patent Applications with the Highest Number of Protested
Of the patent applications filed in the last 10 years (2015-01-01 to 2024-12-31), 73 patents/patent applications were protest more than once in the examination process of other patent applications. The mean of the number of protest is 1.2. The most protest patent is 特許7544468 "防災設備" (4 times) , and the next most protest patent is 再公表2019/088140 "成形品" (3 times) .
| - | No. | Title | |
|---|---|---|---|
| 1 | 特許7544468 | 防災設備 | 4 times |
| 2 | 再公表2019/088140 | 成形品 | 3 times |
| 3 | 特開2022-060304 | 防音室の火災対策構造 | 3 times |
| 4 | 特許7310847 | ＰＯＳレジシステム、及び精算支援方法 | 2 times |
| 5 | 特許6731649 | スピーカボックス | 2 times |
Inspectioned cases
List of latest Inspectioned patents
In the last 3 years (2022-01-01 ~ 2024-12-31), there were 56 patents Inspection from third parties. The average number of Inspection is 1.5 times. The most recently Inspection patent is 特開2022-180516 "音声に基づく医療評価" (Inspection day 2024-12-03) , next is 特開2022-091408 "機械式駐車装置の操作盤とその制御方法" (Inspection day 2024-09-27) .
| - | No. | Title | Inspection days |
|---|---|---|---|
| 1 | 特開2022-180516 | 音声に基づく医療評価 | 2024-12-03 |
| 2 | 特開2022-091408 | 機械式駐車装置の操作盤とその制御方法 | 2024-09-27 |
| 3 | 特開2022-107358 | 二多段式駐車装置とその制御方法 | 2024-09-27 |
| 4 | 特許6222001 | 送風機及びこれを用いた空気調和機 | 2024-09-26 |
| 5 | 特許7542271 | 放送受信端末装置 | 2024-08-30 |
| 6 | 特許7503877 | 情報端末、制御方法、制御プログラム、情報処理装置、情報処理方法、情報処理プログラム | 2024-08-23 |
| 7 | 特開2023-003567 | 吐水装置 | 2024-06-25 |
| 8 | 特許5994136 | 認証システム及び認証方法 | 2024-06-24 |
| 9 | 特開2022-045715 | スピーカー用振動板、スピーカー用振動板の製造方法、及びスピーカー | 2024-06-19 |
| 10 | 特開2022-088021 | 殺菌装置 | 2024-06-14 |
| 11 | 特許7544468 | 防災設備 | 2024-05-22 |
| 12 | 特許7546434 | インターホン機器 | 2024-05-09 |
| 13 | 特開2022-071503 | 報知装置 | 2024-05-08 |
| 14 | 特許6969811 | 音声応答装置 | 2024-02-19 |
| 15 | 特許7562239 | 設定変更可能な非公開モードを備えたウェアラブルサウンドシステム | 2024-01-31 |
| 16 | 特許7547029 | 音声指向型拡声器グリル | 2024-01-30 |
| 17 | 特開2022-066944 | 情報処理装置、コンピュータプログラムおよび情報処理システム | 2023-12-29 |
| 18 | 特許7588104 | 磁気性能が改善又は回復されたＮＤ－ＦＥ－Ｂ磁石を形成するための磁石の再生 | 2023-12-22 |
| 19 | 特許7412484 | 焼結磁性合金及びそれから誘導される組成物の粒界工学 | 2023-12-22 |
| 20 | 特許7503608 | スチレン系樹脂組成物、難燃性スチレン系樹脂組成物及び成形体、並びにパッチアンテナ | 2023-11-07 |
Top Patents/Patent Applications with the Highest Number of Inspectioned
Of the patent applications filed in the last 10 years (2015-01-01 to 2024-12-31), 156 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6401741 "席案内装置、席案内プログラム及び席案内方法" (3 times) , and the next most inspection patent is 再公表2019/088140 "成形品" (3 times) .
| - | No. | Title | |
|---|---|---|---|
| 1 | 特許6401741 | 席案内装置、席案内プログラム及び席案内方法 | 3 times |
| 2 | 再公表2019/088140 | 成形品 | 3 times |
| 3 | 特許7544468 | 防災設備 | 3 times |
| 4 | 特開2017-118469 | スピーカ装置 | 3 times |
| 5 | 特許5986257 | 半導体装置、表示装置、表示モジュール及び電子機器 | 3 times |
Cited cases
Top Patents/Patent Applications with the Highest Number of Cited
Of the patent applications filed in the last 10 years (2015-01-01 to 2024-12-31), 3,504 patents/patent applications were cited more than once in the examination process of other patent applications. The mean of the number of cited is 3.4. The most cited patent is 特許5810475 "遊技台" (162 times) , and the next most cited patent is 特開2020-127655 "遊技機" (123 times) .
| - | No. | Title | |
|---|---|---|---|
| 1 | 特許5810475 | 遊技台 | 162 times |
| 2 | 特開2020-127655 | 遊技機 | 123 times |
| 3 | 特開2020-120948 | 遊技機 | 95 times |
| 4 | 特許6082084 | 遊技機 | 85 times |
| 5 | 特許6540664 | 遊技機 | 67 times |
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