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Principal Officers of the JPO

July 1, 2025

Principal Officers of the JPO

Commissioner

Title Name
Commissioner KASAI Yasuyuki

Deputy Commissioner

Title Name
Deputy Commissioner YASUDA Futoshi

Policy Planning and Coordination Department

Title Name
Director-General, Policy Planning and Coordination Department YOSHIZAWA Takashi
Director, Personnel Division FURUI Ryoji
Patent Attorney Services Administrator KATO Tomoya
Supervisor for Personnel Affairs MAKINO Nobuyuki
Director, General Coordination Division KAMEI Akinori
Director for Business Management HARA Shinichiro
Director, Information Technology and Patent Information Management Office UEO Takahiko
Director, Budget and Accounts Division KUWAHARA Yasuo
Senior Inspection Officer for Budget and Accounts KAWARABUKI Masahiko
Welfare Administrator MIURA Yuki
Director, Policy Planning and Research Division YANAGISAWA Tomoya
Director, IP Promotion Division YOSHINO Sachiyo
Director, International Policy Division TAKESHIGE Tatsuo
Director for International Intellectual Property Policy Planning NITTA Ryo
Director, International Cooperation Division NITTA Minoru

Trademark and Customer Relations Department

Title Name
Director-General, Trademark and Customer Relations Department MOROTA Akihiko
Director, Customer Relations Policy Division TAKAHASHI Norio
Director, Formality Examination Office MONNA Nobuyuki
Director, Registration Office ITO Yasuo
Director, Application Division KOMAZAKI Toshinori
Director, Patent Administration Service Office NAKAYAMA Yoshihiro
Director, Office for International Applications under the Patent Cooperation Treaty (PCT) SUGIYAMA Takuya
Director, Office for International Design Applications under the Geneva Act of the Hague Agreement and International Trademark Applications under the Madrid Protocol TANIGUCHI Masayuki
Director, Trademark Division NEGISHI Katsuhiro
Director for Trademark Examination Planning OMO Yasuo
Director, Chemicals Division YAMADA Kazuhiko
Director, Machinery Division URABE Yoshie
Director, General Merchandise and Textiles Division HAMADA Sayoko
Senior Director, Industrial Services , General Services and International Trademark Application Division SETO Toshiaki
Director, International Trademark Application Division NAITO Junko

Patent and Design Examination Department (Physics, Optics, Social Infrastructure and Design)

Title Name
Director-General, Patent and Design Examination Department (Physics, Optics, Social Infrastructure and Design)KITAMURA Hiroki
Director, Administrative Affairs DivisionNAKANO Hirokazu
Director, Examination Promotion OfficeTAKAHASHI Masaru
Director, Examination Standards OfficeHOSHINO Masayuki
Deputy Director-General of the Patent and Design Examination Department (Measurement and Applied Physics Division)SASANO Hideo
Director, Applied Physics DivisionFURUTA Atsuhiro
Senior Director, Material Analysis and Medical Diagnosis DivisionOKUMA Yasuo
Senior Director, Applied Optics and Optical Devices DivisionKOBAYASHI Hideji
Director, Optical Devices DivisionIMAURA Akiyoshi
Director, Business Machinery DivisionTAKEMURA Shinichiro
Senior Director, Natural Resources and Amusement DivisionYOKOI Naoto
Director,Amusement DivisionUETA Takamori
Director, User Experience DivisionKIYOTO Hiroaki
Director, Design DivisionKUBOTA Daisuke
Director for Design Examination PlanningOMAGARI Kosuke
Senior Director, Information and Transportation Design DivisionSHIMOMURA Keiko
Director, Consumer Goods and Distribution Design DivisionMIYAMOTO Jun
Director, Environment and Infrastructure Design DivisionKAMITANI Yuki

Patent Examination Department(Mechanical Technology)

Title Name
Director-General, Patent Examination Department(Mechanical Technology)KOMATSU Ryuichi
Deputy Director-General of the Patent Examination Department (Automatic Control and Motive Machinery Division)UCHIYAMA Takashi
Director, Motive Machinery DivisionGOKAN Toichiro
Senior Director, Transportation DivisionOKAZAKI Katsuhiko
Director, General Machinery DivisionMATSUNAGA Kenichi
Senior Director, Production Machinery and General Machinery DivisionONO Yukio
Director, Logistics DivisionSHIMADA Kenji
Director, Textile Processing and Packaging Machinery DivisionKAJIMOTO Naoki
Senior Director, Living Related Machinery and Heating, Refrigerating and Air-conditioning Engineering DivisionHARA Taizo
Director, Heating, Refrigerating and Air-conditioning Engineering DivisionKONDO Hiroyuki
Director, Medical Device DivisionSASAKI Satoshi

Patent Examination Department(Chemistry, Life Science and Material Science)

Title Name
Director-General, Patent Examination Department(Chemistry, Life Science and Material Science)MOROOKA Kenichi
Deputy Director-General of the Patent Examination Department (Inorganic Chemistry and Batteries Division)HIRAI Hiroaki
Senior Director, Environmental Chemistry DivisionTAKAOKA Hiromi
Director, Batteries DivisionYAMAMOTO Eiichi
Senior Director, Medical Science and Foods DivisionTANAKA Norimitu
Director, Biotechnology DivisionMIHARA Kenji
Director, Foods DivisionSAKU Takashi
Senior Director, Organic Chemistry and Applied Organic Chemicals DivisionTAKABU Takuya
Director, Applied Organic Chemicals DivisionYASUKAWA Satoshi
Director, Polymer DivisionWASEDA Yoshimasa
Director, Resins DivisionIWATA Yukitaka

Patent Examination Department (Electronic Technology)

Title Name
Director-General, Patent Examination Department (Electronic Technology)NISHINA Masahiro
Deputy Director-General of the Patent Examination Department (Electronic Commerce Technology and Management-Systems Division)HONMA Tomotaka
Director, Management-Systems DivisionTOMITA Takashi
Senior Director, Data Processing DivisionMIYATA Shigeto
Senior Director, Transmission Systems DivisionUMEMOTO Tatsuo
Director, Electric Power Systems DivisionTOHYAMA Takahiko
Director, Digital Communications DivisionHAMAGISHI Hiroaki
Senior Director, Video System and Electronic Components DivisionTSUBATA Takao
Director, Electronic Components DivisionTAKAHASHI Masayuki
Director, Electronic Device DivisionKIMURA Takatoshi

Trial and Appeal Department

Title Name
Director-General, Trial and Appeal DepartmentNONAKA Matsuo
Executive Chief Administrative JudgeMORIFUJI Atsushi
Director, Trial and Appeal DivisionMATSUSHITA Koichi
Director, Trial Clerk OfficeNISHIDA Takuya

The 1st Board of Trial and Appeal (Measurement)

Title Name
Senior Director of the 1st Board of Trial and Appeal HAMANO Takashi
Chief Administrative Judge SAIDO Shingo
Chief Administrative Judge KOJIMA Hiroshi

The 2nd Board of Trial and Appeal (Materials Analysis)

Title Name
Director of the 2nd Board of Trial and Appeal MINAMI Kosuke
Chief Administrative Judge KAGAMI Kazue
Chief Administrative Judge MIYAZAWA Hiroshi

The 3rd Board of Trial and Appeal (Amusement Machinery)

Title Name
Director of the 3rd Board of Trial and Appeal AKITA Masayuki
Chief Administrative Judge KOYANO Hiroyuki
Chief Administrative Judge YOSHIKAWA Yasushi

The 4th Board of Trial and Appeal (General Amusement)

Title Name
Director of the 4th Board of Trial and Appeal SHIBUYA Tomoko
Chief Administrative Judge KOBAYASHI Toshihisa
Chief Administrative Judge FUJITA Toshihiko
Chief Administrative Judge KAWAGUCHI Shinichi

The 5th Board of Trial and Appeal (Natural Resources and Living Environment)

Title Name
Senior Director of the 5th Board of Trial and Appeal IJIMA Kazunori
Chief Administrative Judge ARIIE Yoshiro
Chief Administrative Judge SAWADA Shinji

The 6th Board of Trial and Appeal (Applied Optics)

Title Name
Director of the 6th Board of Trial and Appeal SATOMURA Toshimitsu
Chief Administrative Judge KAMITANI Kenichi

The 7th Board of Trial and Appeal (Business Machinery)

Title Name
Director of the 7th Board of Trial and Appeal KAWAMATA Hiroshi
Chief Administrative Judge HAMAMOTO Tadahiro
Chief Administrative Judge TONOKAWA Masaya

The 8th Board of Trial and Appeal (Applied Physics and Optical Devices)

Title Name
Senior Director of the 8th Board of Trial and Appeal OKADA Yoshimi
Chief Administrative Judge HATAE Susumu

The 9th Board of Trial and Appeal (Automatic Control and Living Related Machinery)

Title Name
Senior Director of the 9th Board of Trial and Appeal KAKIZAKI Hiraki
Chief Administrative Judge KUBOTA Haruhiko
Chief Administrative Judge KITAMURA Hidetaka

The 10th Board of Trial and Appeal (Motive Machinery)

Title Name
Director of the 10th Board of Trial and AppealENDO Hideaki
Chief Administrative JudgeYAGI Makoto
Chief Administrative JudgeKAWABATA Tadashi

The 11th Board of Trial and Appeal (Transportation and Lighting)

Title Name
Director of the 11th Board of Trial and Appeal KUSANO Akiko
Chief Administrative Judge KURAHASHI Norio
Chief Administrative Judge TAMURA Kosaku

The 12th Board of Trial and Appeal (General Machinery and Logistics)

Title Name
Director of the 12th Board of Trial and Appeal ISHII TAKAAKI
Chief Administrative Judge OGAWA Kyoji
Chief Administrative Judge NAKAYA Yuichiro

The 13th Board of Trial and Appeal (Production Machinery)

Title Name
Director of the 13th Board of Trial and Appeal HONJO Ryotaro
Chief Administrative Judge KARIMA Hironobu
Chief Administrative Judge SUZUKI Takao
Chief Administrative Judge ICHINOSE Kaoru

The 14th Board of Trial and Appeal (Textile Processing and Packaging Machinery)

Title Name
Director of the 14th Board of Trial and Appeal IWATANI Kazuomi
Chief Administrative Judge KANAMARU Haruyuki
Chief Administrative Judge TAGUCHI Suguru
Chief Administrative Judge KAMIYAMA Shigeki

The 15th Board of Trial and Appeal (Medical Device)

Title Name
Director of the 15th Board of Trial and Appeal SASAKI Seisho
Chief Administrative Judge INOUE Tetsuo
Chief Administrative Judge KURIYAMA Takuya
Chief Administrative Judge YASUI Hisanori

The 16th Board of Trial and Appeal (Heating, Refrigerating and Air-conditioning Engineering)

Title Name
Director of the 16th Board of Trial and Appeal HIRASE Tomoaki
Chief Administrative Judge OYAMA Takeshi
Chief Administrative Judge MIZUNO Haruhiko

The 17th Board of Trial and Appeal (Inorganic and Environmental Chemistry)

Title Name
Director of the 17th Board of Trial and Appeal FUKAKUSA Yuichi
Chief Administrative Judge MIYAZAWA Takayuki
Chief Administrative Judge HARA Kenichi

The 18th Board of Trial and Appeal (Materials Processing, Metals and Electrochemistry)

Title Name
Director of the 18th Board of Trial and Appeal AWANO Masaaki
Chief Administrative Judge INOUE Takeshi
Chief Administrative Judge TOMINAGA Yasunori

The 19th Board of Trial and Appeal (Polymers)

Title Name
Director of the 19th Board of Trial and Appeal HOSOI Ryuji
Chief Administrative Judge YOSHIZAWA Eiichi
Chief Administrative Judge TATSUMI Masao

The 20th Board of Trial and Appeal (Foods and Plastics Engineering)

Title Name
Director of the 20th Board of Trial and Appeal MATSUDA Shigemasa
Chief Administrative Judge SHIBATA Masahiro
Chief Administrative Judge AMANO Hiiroki

The 21st Board of Trial and Appeal (Applied Organic Chemicals)

Title Name
Senior Director of the 21st Board of Trial and Appeal MITSUMOTO Minako
Chief Administrative Judge MURAMORI Hirofumi
Chief Administrative Judge SESHITA Koichi

The 22nd Board of Trial and Appeal (Organic Chemistry)

Title Name
Director of the 22nd Board of Trial and Appeal BANNO Seiji
Chief Administrative Judge TOMINAGA Tamotsu
Chief Administrative Judge SAITO Megumi
Chief Administrative Judge INOUE Noriyuki

The 23rd Board of Trial and Appeal (Pharmaceuticals)

Title Name
Director of the 23th Board of Trial and Appeal ASANO Mina
Chief Administrative Judge FUJIWARA Hiroko
Chief Administrative Judge MAEDA Kayoko
Chief Administrative Judge ISOGAI Kanae

The 24th Board of Trial and Appeal (Biopharmaceuticals)

Title Name
Senior Director of the 24th Board of Trial and Appeal MATSUNAMI Yumiko
Chief Administrative Judge TOMINAGA Midori
Chief Administrative Judge YOSHIDA Kayoko
Chief Administrative Judge KOGURE Michiaki

The 25th Board of Trial and Appeal (Biotechnology)

Title Name
Director of the 25th Board of Trial and Appeal KAMIJO Hajime
Chief Administrative Judge NAGAI Keiko
Chief Administrative Judge NAKAMURA Hiroshi
Chief Administrative Judge UEHARA Katsunori

The 26th Board of Trial and Appeal (Electronic Commerce Technology)

Title Name
Director of the 26th Board of Trial and Appeal SATO Tomoyasu
Chief Administrative Judge MATSUDA Naoya
Chief Administrative Judge AIZAKI Hirotsune

The 27th Board of Trial and Appeal (Interface)

Title Name
Director of the 27th Board of Trial and Appeal IWAMA Naozumi
Chief Administrative Judge SHINOZUKA Takashi
Chief Administrative Judge SEKINE Yutaka
Chief Administrative Judge TOMIZAWA Tetsuo

The 28th Board of Trial and Appeal (Data Processing)

Title Name
Senior Director of the 28th Board of Trial and Appeal YOSHIDA Yoshihiko
Chief Administrative Judge HAYASHI Tsuyoshi
Chief Administrative Judge Wakioka Tsuyoshi

The 29th Board of Trial and Appeal (Electronic Devices)

Title Name
Director of the 29th Board of Trial and Appeal KOMIYA Shinji
Chief Administrative Judge MATSUNAGA Minoru
Chief Administrative Judge KAJIO Seiya
Chief Administrative Judge NIIDOME Yutaka

The 30th Board of Trial and Appeal (Video System)

Title Name
Director of the 30th Board of Trial and Appeal ITO Takao
Chief Administrative Judge ENDO Hiroshi
Chief Administrative Judge HATANAKA Takayuki

The 31st Board of Trial and Appeal (Transmission Systems)

Title Name
Director of the 31st Board of Trial and Appeal KAWAI Hiroaki
Chief Administrative Judge NAKAKI Tsutomu
Chief Administrative Judge HIROKAWA Hiroshi
Chief Administrative Judge KOIDE Naoya

The 32nd Board of Trial and Appeal (Electronic Components)

Title Name
Director of the 32nd Board of Trial and Appeal WAKUI Tomonori
Chief Administrative Judge INOUE Shinichi
Chief Administrative Judge UEMAE Mitsuji

The 33rd Board of Trial and Appeal(Digital Communications and Electric Power Distribution)

Title Name
Senior Director of the 33rd Board of Trial and Appeal DOI Hitoshi
Chief Administrative Judge MARUYAMA Takamasa
Chief Administrative Judge TAKANO Hiroshi

The 34th Board of Trial and Appeal (Designs)

Title Name
Senior Director of the 34th Board of Trial and Appeal MAEHATA Saori
Chief Administrative Judge TOMINAGA Takashi
Chief Administrative Judge WATANUKI Koichi

The 35th Board of Trial and Appeal (Trademarks: Chemicals and Foodstuffs)

Title Name
Senior Director of the 35th Board of Trial and Appeal TAKANO Kazuyuki
Chief Administrative Judge TAKAHASHI Koji
Chief Administrative Judge TOYOSE Kyotaro

The 36th Board of Trial and Appeal (Trademarks: Machinery and Electric Appliances)

Title Name
Director of the 36th Board of Trial and Appeal
Director of the Litigation Affairs Office
TOMISAWA Takeshi
Chief Administrative Judge KOBAYASHI Masakazu
Chief Administrative Judge YAMADA Hiroyuki

The 37th Board of Trial and Appeal (Trademarks: Textiles and General Merchandise)

Title Name
Director of the 37th Board of Trial and Appeal OHASHI Yoshinari
Chief Administrative Judge ITAYA Reiko

The 38th Board of Trial and Appeal (Trademarks: Industrial Services and General Services)

Title Name
Director of the 38th Board of Trial and Appeal DAN Katsumasa
Chief Administrative Judge OSHIMA Yasuhiro
Chief Administrative Judge OSHIMA Tsutomu

[Last updated July 1, 2025]