Is It Possible to Draft Patent Specifications Using Generative AI?
Toshihiro IGARI
Generative AI is being explored for use across a wide range of fields, and the intellectual property (IP) sector is no exception.
Given its ability to process and generate language-based content, generative AI is considered highly compatible with tasks such as patent searching and patent analytics.
On the other hand, when it comes to drafting patent specifications, several challenges have been identified, including the following:
(1) Patent specifications require strict legal precision and accurate use of technical terminology.
(2) Confidential technical information must be carefully protected to prevent any risk of data leakage.
As a result, the practical use of generative AI in this area appears to remain limited at present.
Amid such circumstances, more than 3,500 patent applications filed by SoftBank Group were published over just two days, on April 2 and April 3, 2025—an event that drew attention within the IP community (see the link below). According to our search of the patent database, all of these applications were filed by just two patent firms. Handling such a large volume using conventional methods would typically be extremely difficult, which suggests that the company may be applying this technology to the preparation of patent specifications.
It may not be long before this technology significantly enhances the efficiency of patent drafting tasks in the future.
https://xtech.nikkei.com/atcl/nxt/column/18/03093/040200003/ (Japanese only)
Japan Patent Office published JPO Status Report 2025
Ryo OKAWA
The Japan Patent Office (JPO) has published the JPO Status Report 2025, summarizing the statistical data and policy outcomes for 2024.
With regard to the statistical data, no particularly noteworthy changes were observed compared to the previous year.
As for policy outcomes, the report places particular emphasis on initiatives related to AI technologies. Specifically, in April 2024, the JPO introduced a new role titled “AI Advisors”—external experts with specialized knowledge in AI-related technologies who support patent examiners by offering technical training and answering inquiries. Additionally, in March 2024, ten new case examples concerning AI-related technologies were added to the Examination Handbook for Patent and Utility Model to provide clear guidance on determining Inventive Step, Description Requirements, and Patent Eligibility.
For more details, please refer to the following links.
https://www.jpo.go.jp/e/news/quickreads/index.html#up20250324
https://www.jpo.go.jp/e/resources/report/statusreport/2025/index.html
Ms. Emiko Maki gave a presentation titled “Japanese Customs Practice Update” at “2025 JPAA IP Practitioners Seminar” held in Manilla, Philippines.
Hisashi Ito selected for Insolvency Lawyer of the Year in Japan – 2025
Hisashi Ito has been selected as Insolvency Lawyer of the Year in Japan in “2025 Global Law Experts Annual Awards”.
We were highly evaluated in The Legal 500 (2025)
In The Legal 500 Asia Pacific (2025), our firm was chosen as a top tier firm in the following categories, and the following attorneys and patent attorney were selected as “Leading partners”. Please check the website of Legal 500 for more details.
Intellectual Property: Independent Local Firms: Tier 1
Leading partners: Bengoshi: Eiji Katayama Junichi Kitahara Makoto Hattori
Leading partners: Benrishi: Hiroshi Kobayashi Mami Hino
Restructuring And Insolvency: Independent Local Firms: Tier 2
Leading partners: Bengoshi: Eiji Katayama
Practice head: Yasuhiko Ikubo Eiji Katayama
Other key lawyers: Hisashi Ito Kazuyuki Taguchi Hideto Sasaki Hirofumi Kato Rikita Karakawa Naotada Yokota
Dispute Resolution: Independent Local Firms: Tier 3
Practice head: Eiji Katayama Hiroshi Kobayashi
Other key lawyers: Junichi Kitahara Makoto Hattori Nodoka Nakamura Tomohiro Yoneyama Shoichiro Kajinami
We were highly evaluated in Chambers Asia-Pacific 2025
In Chambers Asia-Pacific 2025(Chambers & Partners), our firm was highly evaluated in the following category, and the following lawyers and patent attorneys were highly evaluated.
Please check the website of Chambers & Partners for more details.
Intellectual Property Domestic:Band 1
Bengoshi:Eiji Katayama(Senior Statespeople) Junichi Kitahara(Band 4) Makoto Hattori(Band 4)
Benrishi:Mami Hino(Band 1) Shimako Kato(Band 2)
Life Sciences:Band 3
Mami Hino(Band 2)
Restructuring / Insolvency:Band 3
Eiji Katayama(Senior Statespeople)
Junichi Kitahara has been selected as “Dispute Resolution Lawyer of the Year in Japan” organized by 2025 Corporate INTL Magazine Global Award.
We were highly evaluated in Asialaw 2024 Rankings
In Asialaw 2024 Rankings, our firm was highly ranked in the following categories, and the following attorneys and patent attorneys were selected as leading lawyers.
Practice Area Rankings
Intellectual property:Outstanding
Pharmaceuticals and life sciences:Recommended
Dispute resolution:Highly recommended
Restructuring and insolvency:Highly recommended
Industry Sector Rankings
Pharmaceuticals and life sciences:Recommended
Practitioners
Elite practitioner:Eiji Katayama
Distinguished practitioner: Makoto Hattori
Notable practitioner:Junichi Kitahara Mami Hino