TOP/INSIGHTS
Insights
Making intellectual property open.
On YouTube, in books, on social media and in interviews, we have published what we think about IP practice under our own names. Before you ask us for anything, you can check here what kind of firm we are.
Watch & Listen
IP practice, in video and audio.
YOUTUBE — IPX CHANNEL
IPX Channel
How to think about IP practice, explanations of the system, and IP for startups. We deliver in video the practical points that are hard to convey in text.
View the channelPrograms our management appears on
YOUTUBE
IP Practice Online
A YouTube program where practitioners talk about IP practice today. Masamune OSHITANI, Founding Partner (CEO), is a regular.
Watch the programRADIO / YOUTUBE
Patent Attorney Okkun's Idea Revolution
An entertainment program that brings IP closer. Kohei OKUMURA, Ph.D., Founding Partner (COO/CTO), hosts it on Kawasaki FM and YouTube.
Go to the programBooks & Writing
Books
From explanations of the system to practical thinking on startups and IP. Our knowledge is also set down in book form.
Interviews & Media
Interviews and media coverage
We have also spoken about our thinking and our work in interviews with various media. (Newest first)
2026.08 · Tadashi, Shuhi Gimu no Han'i de (podcast)
Patent attorneys in the AI era, and why we speak up
Kohei OKUMURA, Ph.D.
Listen to the show2026.07 · Kawasaki FM “Benrishi Okkun no Idea Kakumei”
IP and PR: bringing expertise to society
Yumiko KANADA
Listen to the show2026.07 · Mimi dake Intern (podcast)
Patent attorneys in the AI era, and the reasons behind rapid growth
Kohei OKUMURA, Ph.D.
Listen to the show2026.06 · CAMPFIRE × Edison Lab (joint seminar)
How to come up with ideas, and how to make them real
Kota OGAWA
Read the article2026.04 · LegalTech Inc. (press release)
“IP moves toward judgment”: appointed outside director
Kohei OKUMURA, Ph.D.
Read the article2026.04 · Sore tte Watashi dake? (podcast)
Inventing flick input, and a career with two hats
Kota OGAWA
Listen to the show2026.03 · Forbes JAPAN
The patent strategy that moved Big Tech
Kota OGAWA
Read the article2026.02 · Institute of Science Tokyo, MOT Seminar
How flick input came to be
Kota OGAWA
Read the article2026.02 · Legal Job Magazine
The way of working chosen after 26 years as an administrator
Mari HASHIMOTO
Read the article2025.10 · Dialogue cafe (podcast)
Efficiency or fun? Building a strong professional firm
Kohei OKUMURA, Ph.D.
Listen to the show2025.10 · Dialogue cafe (podcast)
From robotics researcher to patent attorney
Kohei OKUMURA, Ph.D.
Listen to the show2025.10 · Dialogue cafe (podcast)
An age when everyone invents: your idea may be patentable
Kohei OKUMURA, Ph.D.
Listen to the show2025.10 · Diamond Online
Inventions, music, and a way of making a living
Kota OGAWA
Read the article2025.10 · Diamond Online
How he chose whom to sell the patent to
Kota OGAWA
Read the article2025.09 · ChizaiCTOKYO2025 (hosted by Capcom)
Careers in IP for games and entertainment
Yumiko KANADA
Read the article2025.07 · FM Salus “Anata no Oendan”
An IP specialist’s path, and the person behind it
Kohei OKUMURA, Ph.D.
Listen to the show2025.07 · Toyo Keizai Online
Inventing flick input, and selling it to Microsoft
Kota OGAWA
Read the article2025.07 · SHONAN garden
Making a living from inventions, from Kamakura
Kota OGAWA
Read the article2025.05 · Hatsumeijuku, “The Director's Room”
Lifting the IP industry with the power of crossing borders
Kohei OKUMURA, Ph.D.
Read the conversation2025.04 · Kuno Minoru no Legal Lab (podcast)
A fresh look at what patent attorneys do
Yumiko KANADA
Listen to the show2025.03 · Mono Magazine Web
How an inventor rethinks everyday tools
Kota OGAWA
Read the article2025.03 · Chizai Oshigoto Navi
From researcher to deep tech IP
Hiroki SUMI
Read the article2024.12 · Ochanomizu University, Institute for Global Leadership
Women's careers and a way into the IP world
Yumiko KANADA
Read the article2024.11 · Open Patent Attorney Celebration Fes (Chizaijuku)
A talk on how young patent attorneys are thriving
Hiroki SUMI
Read the article2024.09 · THE NEXT GENERATION
“Speed is power”: how we started, and where we are going
Masamune OSHITANI
Read the article2024.08 · Japan IP Arbitration Center, Kansai Branch (seminar)
Getting patents as a startup
Yumiko KANADA
Read the article2024.04 · Chizai Jitsumu Online (Ep. 185)
From no IP experience to drafting a patent application alone
Hiroki SUMI
Watch the show2024.03 · Chiteki Cafe (radio)
Current affairs × IP talk
Masamune OSHITANI
Listen to the show2024.02 · Kininaru Sekai no Mininaru Hanashi (podcast)
As an inventor, as a musician
Kota OGAWA
Listen to the show2023.10 · Tokkyo.Ai
Teaching methods and the key points of software patents
Kohei OKUMURA, Ph.D.
Read the article2023 · Chizai HR
In-house IT systems, and how to build a team
Masamune OSHITANI
Read the article2022.12 · Toreru Media
How to run IP digital transformation well
Kohei OKUMURA, Ph.D.
Read the article2022.03 · Chizaijuku (note)
The patent bar exam, and how we chose our careers
Kohei OKUMURA, Ph.D.
Read the conversation2022.02 · Toreru Media
The reality of a first year as a patent attorney
Hiroki SUMI
Read the article2022 · Patent, JPAA journal
A next-generation patent firm, envisioned before the pandemic
Kohei OKUMURA, Ph.D.
Watch the show2021.11 · J-WAVE “JK RADIO TOKYO UNITED”
The inventor behind flick input, and the road that led there
Kota OGAWA
Listen to the show2021.02 · ChizaIPro (Japan Patent Attorneys Cooperative)
Making use of the 2019 Design Act reform
Masamune OSHITANI
Read the article2019.06 · Tokkyo no Tetsujin (Tokyo Culture Culture)
A live, timed battle of claim drafting
Kohei OKUMURA, Ph.D.
Read the article2019.02 · TACNEWS
The patent attorney of a new era
Masamune OSHITANI and Kohei OKUMURA, Ph.D.
Read the article2018.08 · ONLY STORY
The founding story
Masamune OSHITANI
Read the article
Follow the People
From the firm, and from each specialist.
Alongside the firm's official accounts, what we publish always comes from people you can see. Members also post from their own accounts what they think about in daily practice.
X (FORMERLY TWITTER)
Official
IPX Patent Partners
@IPX55669653
Follow →X (FORMERLY TWITTER)
Founding Partner (CEO)
Masamune OSHITANI
@masamune013
Follow →X (FORMERLY TWITTER)
Founding Partner (COO/CTO)
Kohei OKUMURA, Ph.D.
@pado3910
Follow →FACEBOOK
Official
IPX Patent Partners
IPX.patent.partners
View the page →FACEBOOK
Founding Partner (CEO)
Masamune OSHITANI
masamune.oshitani
Follow →FACEBOOK
Founding Partner (COO/CTO)
Kohei OKUMURA, Ph.D.
kohei.okumura
Follow →NOTE
Official
IPX Patent Partners
note.com/ipx_channel
Read the articles →NOTE
Founding Partner (CEO)
Masamune OSHITANI
note.com/masamune013
Read the articles →NOTE
Founding Partner (COO/CTO)
Kohei OKUMURA, Ph.D.
note.com/__okkun
Read the articles →X (FORMERLY TWITTER)
Associate Patent Attorney / Public Relations
Yumiko KANADA
@omochi_benrishi
Follow →PODCAST (SPOTIFY)
Hosted by Yumiko KANADA
Manmaru Omochi
A casual radio show that brings patent attorneys closer
Listen to the show →NOTE
Associate Patent Attorney / Public Relations
Yumiko KANADA
note.com/omochi_benrishi
Read the articles →