Sep. 26, 2024

･Mr. Seiji Ohno, Attorney-at-Law, has listed as one of the leading practitioners in Intellectual Property and Life Life Sciences categories by Who's Who Legal JAPAN 2024 .

Aug. 15, 2024

･Mr. Seiji Ohno, Attorney-at-Law, has listed as one of the leading practitioners in Patents categories by Who's Who Legal: IP 2024 .

Jun. 3, 2024

･Ms. Maki Sato has joined the firm as a partner Patent Attorney.

May. 7, 2024

･Mr. Naotoshi Ikeda has joined the firm as an associate Patent Attorney.

Apr.15, 2024

･Mr. Seiji Ohno, Attorney-at-Law, has listed as one of the leading practitioners in Life Sciences categories by Who's Who Legal: Life Sciences 2024 .

Feb.13, 2024

･Mr. Hirofumi Tada authored an article titled “Life Sciences & Pharma IP Litigation 2024 Japan (Chambers)”

Jan. 1, 2024

･Mr. Kazuki Kameyama has joined the firm as an associate Attorney-at-law.

Nov. 27, 2023

･ 2023 Japan Law Firm Awards by Asia Business Law Journal ranked OHNO & PARTNERS as one of the top Law firms in IP enforcement categories.

Oct. 27, 2023

･ Top Ranked Legal ranked OHNO & PARTNERS as one of the top IP firms in Patents Contentious and Trademark Contentious categories.

Nov. 02, 2023

･Mr. Seiji Ohno, Attorney-at-Law, has listed as one of the leading practitioners in Intellectual Property and Life Life Sciences categories by Who's Who Legal JAPAN 2023 .

Aug. 15, 2023

･Mr. Seiji Ohno, Attorney-at-Law, has listed as one of the leading practitioners in Patents categories by Who's Who Legal: IP 2023 .

May. 23, 2023

･Mr. Seiji Ohno, Attorney-at-Law, has listed as one of the leading practitioners in Life Sciences categories by Who's Who Legal: Life Sciences 2023 .

Oct. 5, 2022

･Mr. Seiji Ohno, Attorney-at-Law, has listed as one of the leading practitioners in Patents categories by Who's Who Legal: IP 2022 .

Nov. 30, 2022

･Mr. Seiji Ohno, Attorney-at-Law, has listed as one of the leading practitioners in Intellectual Property and Life Life Sciences categories by Who's Who Legal JAPAN 2022 .

Jul. 5, 2022

･Mr. Seiji Ohno, Attorney-at-Law, has listed in IAM Patent 1000 2022 .

Jun. 13, 2022

･Mr. Seiji Ohno, Attorney-at-Law, has listed as one of the leading practitioners in Life Sciences categories by Who's Who Legal: Life Sciences 2022 .

Apr. 1, 2022

･Mr. Josaku Sakakima has joined the firm as an associate Patent Attorney.

Nov. 15, 2021

･Mr. Seiji Ohno, Attorney-at-Law, has listed as one of the leading practitioners in Intellectual Property and Life Life Sciences categories by Who's Who Legal JAPAN 2021 .

Oct. 13, 2021

･Mr. Hirofumi Tada authored an article titled “Patent law development in Japan.” Oct 7, 2021.

Sep. 21, 2021

･Mr. Seiji Ohno, Attorney-at-Law, has listed as one of the leading practitioners in Patents categories by Who's Who Legal: IP 2021 .

Aug. 20, 2021

･Mr. Seiji Ohno, Attorney-at-Law, has listed in A-List: Japan's top 100 lawyers by ASIA BUSINESS LAW JOURNAL .

Aug. 16, 2021

･Mr. Hirofumi Tada authored an article titled "Updates on trademark law in Japan"（Asia Business Law Journal）. Aug 17, 2021

Jun. 1, 2021

･Ms. Yumi Ohguri has joined the firm as an associate Patent Attorney.

May. 26, 2021

･Apex Asia's 2020 Asia IP Patent Rankings ranked OHNO & PARTNERS as one of the top IP firms.

Apr. 12, 2021

･Mr. Seiji Ohno, Attorney-at-Law, has listed as one of the leading practitioners in Life Sciences categories by Who's Who Legal: Life Sciences 2021 .

Jan. 6, 2021

･Mr. Dai Ibuka has joined the firm as an associate Attorney-at-law.

Jan. 5, 2021

･Ms. Maiko Ide has joined the firm as an associate Patent Attorney.

Jan. 5, 2021

･Mr. Junichi Takazakura has joined the firm as an associate Patent Attorney.

Nov. 25, 2020

･Mr. Seiji Ohno, Attorney-at-Law, has listed as one of the leading practitioners in Intellectual Property and Life Life Sciences categories by Who's Who Legal JAPAN 2020 .

June. 15, 2020

･Mr. Seiji Ohno, Attorney-at-Law, has listed as one of the leading practitioners in Patents categories by Who's Who Legal: Patents 2020 .

May. 13, 2020

･Mr. Seiji Ohno, Attorney-at-Law, has listed as one of the leading practitioners in Life Sciences categories by Who's Who Legal: Life Sciences 2020 .

Jan. 6, 2020

･Ms. Machiko Morita has joined the firm as an associate Attorney-at-law.

Dec. 3, 2019

･Mr. Seiji Ohno, Attorney-at-Law, has listed as one of the leading practitioners in Intellectual Property and Life Life Sciences categories by Who's Who Legal JAPAN 2019 .

Sep. 3, 2019

･Managing IP's IP STARS PATENT Handbook 2019　ranked OHNO & PARTNERS as one of the top IP firms in Patent Contentious categories and Mr. Seiji Ohno, Attornty-at-Law, as one of the leading practitioners in IP Transaction categories .

June. 11, 2019

･Mr. Seiji Ohno, Attorney-at-Law, has listed as one of the leading practitioners in Patents categories by Who's Who Legal: Patents 2019 .

May. 8, 2019

･Mr. Seiji Ohno, Attorney-at-Law, has listed as one of the leading practitioners in Life Sciences categories by Who's Who Legal: Life Sciences 2019 .

Mar. 14, 2019

･Managing IP's IP STARS RANKINGS 2019 ranked OHNO & PARTNERS as one of the top IP firms in Trademark Contentious categories.

･Chambers Asia Pacific 2019 selected Mr. Seiji Ohno, Attorney-at-Law, as one of the leading IP lawyers in Japan.

Nov. 22, 2018

･Mr. Seiji Ohno, Attorney-at-Law, has listed as one of the leading practitioners in Intellectual Property and Life Life Sciences categories by Who's Who Legal JAPAN 2018 .

May 31, 2018

･Chambers Asia Pacific 2018 selected Mr. Seiji Ohno, Attorney-at-Law, as one of the leading IP lawyers in Japan.

May. 17, 2018

･Mr. Seiji Ohno, Attorney-at-Law, has listed as one of the leading practitioners in intellectual property categories by CHAMBERS GLOBAL The world's leading business lawyers .

May. 2, 2018

･Mr. Seiji Ohno, Attorney-at-Law, has listed as one of the leading practitioners in Patents and Life Sciences categories by Who's Who Legal 2018 .

Mar. 5, 2018

･Managing IP's IP Stars 2018 ranked OHNO & PARTNERS as one of the top IP firms in Trademark Contentious categories.

Oct. 16, 2017

･Mr. Seiji Ohno, Attorney-at-Law, has listed as one of the leading practitioners in Japan-Patent Contentious and IP categories by Who's Who Legal 2017 .

Oct. 16, 2017

･Managing IP's IP Stars 2017 ranked OHNO & PARTNERS as one of the top IP firms in Japan-Patent Contentious and selected Mr. Seiji Ohno, Attorney-at-Law, as a guide listing leading IP practitioners in each jurisdiction.

Aug. 9, 2017

･IAM Patent 1000 - The World's Leading Patent Professionals 2017 selected Mr. Seiji Ohno, Attorney-at-Law, as a recommended indivisual in litigation and transactions categories, and Mr. Ken-ichi Katayama, Patent Attorneys, as recommended indivisuals in prosecution category.

May 8, 2017

･Chambers Asia Pacific 2017 selected Mr. Seiji Ohno, Attorney-at-Law, as one of the leading IP lawyers in Japan.

Apr. 20, 2017

･Mr. Seiji Ohno, Attorney-at-Law, has listed as one of the leading practitioners in Patents and Life Life Sciences categories by Who's Who Legal 2017 .

Apr. 1, 2017

･Mr. Makoto Ohgi has joined the firm as an associate Patent Attorney.

Feb. 22, 2017

･Managing IP's IP Stars 2017 ranked OHNO & PARTNERS as one of the top IP firms in Trademark Contentious categories.

Feb. 16, 2017

･Mr. Tomoyuki Imano has joined the firm as an associate Patent Attorney.

Dec. 19, 2016

･Mr. Kazuhiro Iwatani has joined the firm as an associate Attorney-at-law.

Nov. 7, 2016

･Mr. Seiji Ohno, Attorney-at-Law, has listed as one of the leading practitioners in Patents and Life Life Sciences categories by Who's Who Legal JAPAN 2016 .

Nov. 7, 2016

･Asia IP Experts 2016 selected Mr. Seiji Ohno, Attorney-at-Law, as a recommended indivisual in Patents and Litigation categories.

Sep. 21, 2016

･Mr. Seiji Ohno, Attorney-at-Law, has listed in EXPERT GUIDES Trade Mark 2016 .

Jul. 1, 2016

･Mr. Yuji Yamaguchi has joined the firm as an associate Attorney-at-law.

Jun. 21, 2016

･Managing IP's IP Stars 2016 ranked OHNO & PARTNERS as one of the top IP firms in Japan-Patent Contentious and Trademark Contentious categories.

Jun. 1, 2016

･IAM Patent 1000 - The World's Leading Patent Professionals 2016 selected Mr. Seiji Ohno, Attorney-at-Law, as a recommended indivisual in litigation and transactions categories, and Mr. Ken-ichi Katayama and Mr. Kan Otani, Patent Attorneys, as recommended indivisuals in prosecution category.

May 30, 2016

･ALB ranked OHNO & PARTNERS in their "IP Rankings 2016" (May 2016 issue) as one of top firms in Japan-Patents and Japan-Trademarks/Copyright categories.

May 17, 2016

･Mr. Seiji Ohno, Attorney-at-Law, has listed as one of the leading practitioners in Patents and Life Sciences categories by Who's Who Legal .

Feb. 8, 2016

･Chambers Asia Pacific 2016 ranked OHNO & PARTNERS as one of top IP firms in Japan, and selected Mr. Seiji Ohno, Attorney-at-Law, as one of the leading IP lawyers in Japan.

Jan. 5, 2016

･Ms. Kimiko Yano has joined the firm as an of-counsel Patent attorney（Trademark & Design）.

Dec. 21, 2015

Mr. Hirofumi Tada has joined the firm as an associate Attorney-at-law.

Nov. 30, 2015

･Asialaw Profiles 2016 ranked OHNO & PARTNERS as one of the top firms in Japan-Intellectual Property category.

Jul. 30, 2015

･Managing IP's IP Stars 2015 ranked OHNO & PARTNERS as one of the top IP firms in Japan-Patent Contentious and Trademark Contentious categories.

Jul. 30, 2015

･Managing IP selected Mr. Seiji Ohno, Attorney-at-Law, and Mr. Kan Otani, Patent Attorney, in IP Stars 2015, a guide listing leading IP practitioners in each jurisdiction.

Jul. 30, 2015

･Asia IP ranked OHNO & PARTNERS in their "2015 Asia IP Trademark Survey"(May/June 2015 issue) as one of the top firms in Japan-Trademark Contentious category.

Jun. 19, 2015

･Mr. Seiji Ohno, Attorney-at-Law, has listed as one of the leading practitioners in Patents and Life Science's' categories by Who's Who Legal .

Jun. 17, 2015

･IAM Patent 1000 - The World's Leading Patent Practitioners 2015 selected Mr. Seiji Ohno, Attorney-at-Law, as a recommended indivisual in litigation and transactions categories, and Mr. Ken-ichi Katayama and Mr. Kan Otani, Patent Attorneys, as recommended indivisuals in prosecution category.

Jun. 15, 2015

･Mr. Hiroshi Nomoto has joined the firm as an associate Patent Attorney.

May 19, 2015

Mr. Kan Otani authored an article titled "Role of Patent Application in Startup's Competitive Advantage" for May edition of Patent issued by JPAA.

May 11, 2015

･Asia IP Profiles 2015 ranked OHNO & PARTNERS as one of recommended firms in Japan-Patent Contentious and Japan-Trademark Contentious categories.

Apr. 16, 2015

･Mr. Kan Otani authored an article titled "Learning from Fitbit: startup finance and right time for patent applications" for CNET Japan on April 16, 2015.

Apr. 1, 2015

･Mr. Hitoshi Nakamura, Patent Attorney, has been appointed as a vice president of Japan Patent Attorneys Association.

Apr. 1, 2015

･Mr. Hiroyuki Kimura has joined the firm as an associate Attorney-at-law.
･Mr. Masahiro Moriyama has joined the firm as an associate Patent Attorney.

Mar. 25, 2015

･Managing IP Global Awards 2015 selected OHNO & PARTNERS as the Law Firm of the Year in the Japan-Contentious category.

Feb. 17, 2015

･Chambers Global 2015 ranked OHNO & PARTNERS as one of top IP firms in Japan, and selected Mr. Seiji Ohno, Attorney-at-Law, as one of the leading IP lawyers in Japan.

Feb. 5, 2015

･Mr. Kan Otani authored an article titled "Not only for big firms, the reason why startups need 'patents'" for CNET Japan on February 5, 2015.

Jan. 1, 2015

･Mr. Hiroyuki Ohno has joined the firm as an associate Attorney-at-law.
･Mr. Seigen Tsukuda has joined the firm as an associate Patent Attorney.

Dec. 15, 2014

･Mr. Seiichi Sakatani has joined the firm as an associate Patent Attorney.

Sep. 10, 2014

･Asia IP ranked OHNO & PARTNERS in their "2014 Asia IP Patent Survey"(August 2014 issue) as one of top firms in Japan-Patent Contentious category.

Aug. 22, 2014

Comments by Kan Otani, Patent Attorney, were quoted in an article titled "JPO Will Strengthen Cooperative Relationship with ASEAN in the Field of IP" in Asia IP on August 19, 2014.

Aug. 18, 2014

･Mr. Hiroki Otsuka has joined the firm as an associate Patent Attorney.

Jul. 1, 2014

･Mr. Takeshi Katada has joined the firm as a Partner (Patent Attorney).

Jun. 30, 2014

･Managing IP selected Mr. Seiji Ohno, Attorney-at-Law, and Mr. Kan Otani, Patent Attorney, in IP Stars 2014, a guide listing leading IP practitioners in each jurisdiction.

Jun. 23, 2014

･Mr. Yutaka Morita has joined the firm as an associate Patent Attorney.

Jun. 16, 2014

･IAM Patent 1000 - The World's Leading Patent Practitioners 2014 selected Mr. Seiji Ohno, Attorney-at-Law, as a recommended indivisual in litigation and transactions categories, and Mr. Ken-ichi Katayama, Patent Attorney, as a recommended indivisual in prosecution category.

May 19, 2014

･Asia IP Profiles 2014 ranked OHNO & PARTNERS as one of recommended firms in Japan-Patent Contentious and Japan-Trademark Contentious categories.

May 19, 2014

･ALB ranked OHNO & PARTNERS in their "IP Rankings 2014" (May 2014 issue) as one of top firms in Japan-Patents and Japan-Trademarks/Copyright categories.

May 16, 2014

･Mr. Kan Otani authored an article titled "Issues Surrounding Start-Up Patent Applications - Reality and Best Practice -" for May edition of Patent issued by JPAA.

Apr. 1, 2014

･Mr. Tomohiro Matsuno has joined the firm as an associate Patent Attorney.

Mar. 28, 2014

･Managing Intellectual Property ranked OHNO & PARTNERS in their "Trade mark survey 2013" (March 2014 issue) in the Japan-Trade mark Contentious category.

Mar. 28, 2014

･Managing Intellectual Property ranked OHNO & PARTNERS in their "Patent survey 2013" (February 2014 issue) in the Japan-Patent Contentious category.

Mar. 26, 2014

･Chambers Global 2014 ranked OHNO & PARTNERS as one of top IP firms in Japan, and selected Mr. Seiji Ohno, Attorney-at-Law, as one of the leading IP lawyers in Japan.

Jan. 1, 2014

･Mr. Yuto Yoritomi has joined the firm as an associate Attorney-at-law.

Sep. 2, 2013

･Corporate INTL Legal Awards 2013 selected OHNO & PARTNERS as the IP Litigation Law Firm of the Year in Japan.

Aug. 16, 2013

･Mr. Kan Otani authored an article titled "Revisiting Polyester Cases -History and Future of Use Theory and Doctrine of Equivalents in Japan -" for August edition of Chizai Kanri (Intellectual Property Management).

Apr. 17, 2013

･Managing IP Global Awards 2013 selected OHNO & PARTNERS as the Law Firm of the Year in the Japan-Contentious category.

Apr. 1, 2013

･Chambers Global 2013 selected Mr. Seiji Ohno, Attorney-at-Law, as one of the leading IP lawyers in Japan.

･Chambers Asia-Pacific 2013 ranked OHNO & PARTNERS as one of top IP firms in Japan, and selected Mr. Seiji Ohno, Attorney-at-Law, as one of the leading IP lawyers in Japan.