4L035 合成繊維技術 Patent Trends
The Theme Code "合成繊維技術" had 153 patent application filings in the publication-lag-adjusted comparison period (2024-01-01 to 2024-10-31). This is a with an decreasing trend transition of -23 filings (-13.1%) over 176 they had in the same period of the previous year (2023-01-01 to 2023-10-31).
The highest number of filings in 2021 with 323 cases, and their lowest number in 2024 with 190 cases (years covered: 2021, 2022, 2023, 2024).
The mean of the number of filings over the last 4 years (2021 to 2024, 983 cases in total) is 246, and the median is 235. The coefficient of variation (standard deviation/mean) is 0.21, and filings have been moderate fluctuations.
| Index | Value |
|---|---|
| Average | 246 patents |
| Std Dev | 52.4 |
| COV | 0.21 |
| Year | Cases | YOY |
|---|---|---|
| 2025 year | 64 cases | -66.3% |
| 2024 year | 190 cases | -7.77% |
| 2023 year | 206 cases | -21.97% |
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 合成繊維技術[4L035] for the period of the last 6 years (2020 to 2025). You can compare the information in this report with the trends in your competitors’ patent filings and technologies.
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 合成繊維技術, 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, and their top coapplicants (joint research partners, alliance partners). 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.
合成繊維技術, Changes in the Number of JP Patents/Patent Applications
The changes in the number of patent filings of 合成繊維技術 over the last 6 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.
合成繊維技術 JP patent filing trend (unit: cases)
| Year | Cases |
|---|---|
| 2021 | 323 |
| 2022 | 264 |
| 2023 | 206 |
| 2024 | 190 |
| 2025 | 64 |
Patent Landscape
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 合成繊維技術 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.
Keywords (importance)
Top keywords frequently used in patent filings for 合成繊維技術 are shown below.
Top keywords for 合成繊維技術
| Keyword | Score |
|---|---|
| 含有 | 100.0 |
| 繊維 | 96.05 |
| 紡糸 | 76.59 |
| 強度 | 56.61 |
| 樹脂 | 46.86 |
| 重合 | 40.42 |
| 重量 | 36.77 |
| 酸 | 30.67 |
| 組成 | 29.8 |
| 修正 | 22.38 |
| 熱 | 22.2 |
| 基 | 21.88 |
| °C | 21.73 |
| 溶融 | 16.87 |
| 芳香 | 14.24 |
Search Set (Analysis Patents)
This patent analysis report was created for a patent search set of 1,047 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.
合成繊維技術[4L035]
Recent publications
| Publication No. | Title | Bibliographic info | Theme |
|---|---|---|---|
| 1. JPA2026-180063 | β－１，３－グルカンエステル誘導体ポリマー及びその粉末、繊維並びにそれらの製造方法、繊維製品、ファスナーテープ、並びにスライドファスナー | ・Applicant YKK株式会社, 国立大学法人東京大学 ・Filing date 2025-04-30 ・Publication date 2026-11-12 | 4C090, 4L035 |
| 2. JPA2026-180021 | 再生セルロース繊維及びその製造方法 | ・Applicant 花王株式会社 ・Filing date 2025-04-30 ・Publication date 2026-11-12 | 4L035 |
| 3. JPP7947738 | 炭素繊維束及び炭素繊維束の製造方法 | ・Applicant 三菱ケミカル株式会社 ・Filing date 2022-03-29 ・Publication date 2026-11-11 | 4L035, 4L037 |
| 4. JPP7946797 | 使用中にマイクロプラチック発生を抑制するポリエステル繊維の製造方法 | ・Applicant 江蘇恒力化繊股ふん有限公司 ・Filing date 2023-10-31 ・Publication date 2026-11-09 | 4J002, 4J029, 4L035 |
| 5. JPA2026-177446 | 人工毛髪用繊維、及び頭髪装飾製品 | ・Applicant デンカ株式会社 ・Filing date 2025-04-24 ・Publication date 2026-11-06 | 4L035 |
| 6. JPA2026-176402 | 人工毛髪用繊維、頭髪装飾品及び人工毛髪用繊維の製造方法 | ・Applicant デンカ株式会社 ・Filing date 2023-07-10 ・Publication date 2026-11-05 | 4L035 |
| 7. JPA-HYO2026-536442 | グラフェン多機能繊維及び製造方法と応用 | ・Applicant 青島上雅家居用品股ふん有限公司 ・Filing date 2024-11-06 ・Publication date 2026-10-30 | 4L035, 4L048 |
| 8. JPA2026-173893 | ポリプロピレンモノフィラメント | ・Applicant 萩原工業株式会社 ・Filing date 2025-04-18 ・Publication date 2026-10-29 | 4L035 |
| 9. JPA2026-173108 | 再生全芳香族ポリアミド繊維およびその製造方法 | ・Applicant 帝人株式会社 ・Filing date 2025-04-16 ・Publication date 2026-10-28 | 4F401, 4L033, 4L035 |
| 10. JPP7917940 | 任意に裁断可能な生地に用いるポリウレタン弾性繊維、その製造方法及び使用, 任意に裁断可能な生地に用いるポリウレタン弾性繊維、その製造方法及び使用 | ・Applicant 邦特雲繊(青島)新材料科技有限公司 ・Filing date 2025-06-09 ・Publication date 2026-10-28 | 4L035 |
| 11. JPA2026-172543 | 珪藻土を含有するフィラメント糸および繊維製品 | ・Applicant グンゼ株式会社 ・Filing date 2025-04-15 ・Publication date 2026-10-27 | 4L002, 4L035 |
| 12. JPP7941715 | ポリプロピレン短繊維 | ・Applicant 東レ株式会社 ・Filing date 2022-12-09 ・Publication date 2026-10-27 | 4L035, 4L036 |
| 13. JPA-HYO2026-535176 | ポリマーブレンドからリサイクルされたポリエステルからポリエステル繊維を調製する方法 | ・Applicant ビーエーエスエフソシエタス・ヨーロピア ・Filing date 2024-09-27 ・Publication date 2026-10-23 | 4F401, 4L035 |
| 14. JPA-HYO2026-535107 | 軟化フラッシュ紡糸シート | ・Applicant デュポンセイフティーアンドコンストラクションインコーポレイテッド ・Filing date 2024-06-28 ・Publication date 2026-10-23 | 4L035, 4L047 |
| 15. JPA2026-170522 | ポリアミド長繊維およびポリアミド仮撚り加工糸 | ・Applicant 東レ株式会社 ・Filing date 2025-04-09 ・Publication date 2026-10-22 | 4L035, 4L036 |
Same industry / competition company information (JP)
{'ja': '技術テーマ「合成繊維技術」における上位出願人の特許情報を以下に示します。各企業の特許件数を比較することで、過去および現在の各社の技術テーマにおける研究開発状況や、技術テーマにおける各社の位置付けを確認できます。なお、特許は出願から公開までに一年半のタイムラグがあるため、一年半より直近の状況については分析できない点に注意する必要があります。', 'en': "The patent information of the higher applicant in the technical theme 合成繊維技術 is shown below. By comparing the number of patents of each company, you can check the research and development status of each company's past and present technical themes and the position of each company in the technical theme. Patents have a time lag of about 18 months from filing to publication."}
Trends in filing of joint patent applications in the last 3 years (2023 to 2025).
Comparing the number of applications of each company, 東レ株式会社 has the highest number of joint applications in the last in the last 3 years (2023 to 2025) with 53 cases, followed by 株式会社カネカ with 34 cases.
| Name | Cases |
|---|---|
| 東レ株式会社 | 53 cases |
| 株式会社カネカ | 34 cases |
| 帝人株式会社 | 21 cases |
| 旭化成株式会社 | 17 cases |
| ユニチカトレーディング株式会社 | 6 cases |
| ユニチカ株式会社 | 5 cases |
Trends in filing of joint patent applications for the target period (2020 to 2025).
Comparing the number of applications of each company, 東レ株式会社 has the highest number of joint applications in the last for the target period (2020 to 2025) with 146 cases, followed by 帝人株式会社 with 68 cases.
| Name | Cases |
|---|---|
| 東レ株式会社 | 146 cases |
| 帝人株式会社 | 68 cases |
| 株式会社カネカ | 60 cases |
| 旭化成株式会社 | 49 cases |
| ユニチカ株式会社 | 43 cases |
| ユニチカトレーディング株式会社 | 34 cases |
Same industry / competition company JP patent filing ranking
佐藤総合特許事務所 代表弁理士
佐藤 寿のコメント
競合企業の長期推移をどう読むか
同業や競合企業の長期的な特許出願件数の推移から、長期トレンドと出願件数の山や谷を確認することができます。
解説の続きを読む
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 6 companies in the same industry over the past 6 years.
Competitor filing ranking
| Name | Cases |
|---|---|
| 東レ株式会社 | 146 |
| 帝人株式会社 | 68 |
| 株式会社カネカ | 60 |
| 旭化成株式会社 | 49 |
| ユニチカ株式会社 | 43 |
| ユニチカトレーディング株式会社 | 34 |
Top company information (JP)
{'ja': '技術テーマ「合成繊維技術」における上位出願人の特許情報を以下に示します。各企業の特許件数を比較することで、過去および現在の各社の技術テーマにおける研究開発状況や、技術テーマにおける各社の位置付けを確認できます。なお、特許は出願から公開までに一年半のタイムラグがあるため、一年半より直近の状況については分析できない点に注意する必要があります。', 'en': "The patent information of the higher applicant in the technical theme 合成繊維技術 is shown below. By comparing the number of patents of each company, you can check the research and development status of each company's past and present technical themes and the position of each company in the technical theme. Patents have a time lag of about 18 months from filing to publication."}
佐藤総合特許事務所 代表弁理士
佐藤 寿のコメント
競合企業との比較のポイント
同業や競合企業が特許に注力している分野を知ることで、自社の戦略や製品開発の方向性を把握することができます。
解説の続きを読む
Trends in filing of joint patent applications in the last 3 years (2023 to 2025).
among the top coapplicants, 東レ株式会社 has the highest number of joint applications in the last in the last 3 years (2023 to 2025) with 53 cases, followed by 株式会社カネカ with 34 cases.
| Name | Cases |
|---|---|
| 東レ株式会社 | 53 cases |
| 株式会社カネカ | 34 cases |
| 帝人株式会社 | 21 cases |
Trends in filing of joint patent applications for the target period (2020 to 2025).
among the top coapplicants, 東レ株式会社 has the highest number of joint applications in the last for the target period (2020 to 2025) with 146 cases, followed by 帝人株式会社 with 68 cases.
| Name | Cases |
|---|---|
| 東レ株式会社 | 146 cases |
| 帝人株式会社 | 68 cases |
| 株式会社カネカ | 60 cases |
Top company JP patent filing ranking
Below is a ranking of the number of JP patent applications by 合成繊維技術’s top 3 coapplicants over the last 6 years.
佐藤総合特許事務所 代表弁理士
佐藤 寿のコメント
競合企業の長期推移をどう読むか
同業や競合企業の長期的な特許出願件数の推移から、長期トレンドと出願件数の山や谷を確認することができます。
解説の続きを読む
Top co-applicant filing ranking
| Name | Cases |
|---|---|
| 東レ株式会社 | 146 |
| 帝人株式会社 | 68 |
| 株式会社カネカ | 60 |
Top company, Change in the Number of JP Patents
Below is a patent map showing the changes in the numbers of JP patent filings by 合成繊維技術’s top 3 coapplicants over the last 6 years.
Top co-applicant filing ranking
| Name | Cases |
|---|---|
| 東レ株式会社 | 146 |
| 帝人株式会社 | 68 |
| 株式会社カネカ | 60 |
Top company details
Trends in filing of joint patent applications with 東レ株式会社
合成繊維技術 filed 146 joint applications with 東レ株式会社 for the analysis period (2020 to 2025).
The mean of the number of filings over the last 5 years (2020 to 2024, 132 cases in total) is 26.4, and the median is 26.0. The coefficient of variation (standard deviation/mean) is 0.28, and filings have been large fluctuations.
The highest number of filings in 2020 with 38 cases, and their lowest number in 2024 with 15 cases (years covered: 2020, 2021, 2022, 2023, 2024).
| Index | Value |
|---|---|
| Average | 26.4 patents |
| Std Dev | 7.4 |
| COV | 0.28 |
| Year | Cases | YOY |
|---|---|---|
| 2025 year | 14 cases | -6.67% |
| 2024 year | 15 cases | -37.5% |
| 2023 year | 24 cases | -7.69% |
Trends in filing of joint patent applications with 株式会社カネカ
合成繊維技術 filed 60 joint applications with 株式会社カネカ for the analysis period (2020 to 2025).
The mean of the number of filings over the last 5 years (2020 to 2024, 54 cases in total) is 10.8, and the median is 13.0. The coefficient of variation (standard deviation/mean) is 0.4, and filings have been large fluctuations.
The number of filings has been increasing for the publication-lag-adjusted last 3 years (2023 to 2025). The highest number of filings in 2021 with 15 cases, and their lowest number in 2020 with 3 cases (years covered: 2020, 2021, 2022, 2023, 2024).
| Index | Value |
|---|---|
| Average | 10.8 patents |
| Std Dev | 4.7 |
| COV | 0.4 |
| Year | Cases | YOY |
|---|---|---|
| 2025 year | 6 cases | -60.0% |
| 2024 year | 15 cases | +15.38% |
| 2023 year | 13 cases | +62.5% |
Trends in filing of joint patent applications with 帝人株式会社
合成繊維技術 filed 68 joint applications with 帝人株式会社 for the analysis period (2020 to 2025).
The mean of the number of filings over the last 5 years (2020 to 2024, 65 cases in total) is 13.0, and the median is 14.0. The coefficient of variation (standard deviation/mean) is 0.30, and filings have been large fluctuations.
The highest number of filings in 2020 with 17 cases, and their lowest number in 2024 with 6 cases (years covered: 2020, 2021, 2022, 2023, 2024).
| Index | Value |
|---|---|
| Average | 13.0 patents |
| Std Dev | 3.9 |
| COV | 0.30 |
| Year | Cases | YOY |
|---|---|---|
| 2025 year | 3 cases | -50.0% |
| 2024 year | 6 cases | -50.0% |
| 2023 year | 12 cases | -14.29% |
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佐藤総合特許事務所 代表弁理士
佐藤 寿のコメント
競合企業との比較のポイント
同業や競合企業が特許に注力している分野を知ることで、自社の戦略や製品開発の方向性を把握することができます。
解説の続きを読む