Patent Leaderboard
USPTO Patent Rankings Data through Sept 30, 2025

Tokyo, JP ranks #1 worldwide for total patents filed in 2019, with 30,927 patents from 15,298 inventors. Leading employers of inventors based in Tokyo, JP include Hitachi, Sumitomo Metal Industries, Mitsubishi Electric.

Showing 11,101–11,150 of 15,298 inventors

Rank Inventor Primary Company Patents
#6064 Kazuaki NAOE Hitachi 1
#6064 Takashi Aoyagi Hitachi 1
#6064 Tadahisa Arahori Sumitomo Metal Industries 1
#6064 Sadao Miura Mitsubishi Electric 1
#6064 Susumu Hikoyama 1
#6064 Yuko Aoki Jx Nippon Oil & Energy 1
#6064 Noboru Kiga Omron 1
#6064 Hiromi Wakaki Kabushiki Kaisha Toshiba 1
#6064 Nagahide SAKAI Olympus 1
#6064 Hiroshi Matahira Hitachi Automotive Systems 1
#6064 Judith Shade Google 1
#6064 Tadayoshi Osakabe Nsk 1
#6064 Shiro Tanii Asahi Glass Co. 1
#6064 Shinji Honjo Toshiba Memory 1
#6064 Yukio Honma Nikon-Essilor Co. 1
#6064 Atsunori Morigaki Lion Group 1
#6064 Takanori Matsunaga Mitsubishi Electric 1
#6064 Hironobu Yamada Oki Data 1
#6064 Nobuyuki Negishi Hitachi 1
#6064 Yosuke Ichinomiya Dainichiseika Color & Chemicals Mfg. Co. 1
#6064 Shoji Yabe Showa Denko K.K. 1
#6064 Kenrou Tanaka Jsr 1
#6064 Kenzou Ookita Jsr 1
#6064 Kazuhito Kamei Toyota 1
#6064 Toshimasa Tomokiyo Nippon Steel & Sumitomo Metal 1
#6064 Manato Ito Kabushiki Kaisha Sega Games 1
#6064 Kimikazu Sugiyama Hitachi High-Technologies 1
#6064 Takashi Hamano Fujitsu Limited 1
#6064 Souichirou Kawazoe Astellas Pharma 1
#6064 Kazuyoshi Obitsu Astellas Pharma 1
#6064 Akio Miyafuji 1
#6064 Tadashi Fukui Renesas Electronics 1
#6064 Hiroaki IKKANZAKA Ricoh Company 1
#6064 Thanhlong Phan Fujikura 1
#6064 Atsuo Ishikawa Kanegafuchi Kagaku Kogyo 1
#6064 Teppei Fujisawa Dena Co. 1
#6064 Hideo Kanehiro Mochida Pharmaceutical Co. 1
#6064 Hidekazu Tsunoda Yamabiko 1
#6064 Yoshihito Hirose Hirose Electric Co. 1
#6064 Tomonori Fukuta Mitsubishi Electric 1
#6064 Tomoka Kamiura Nec 1
#6064 Seiji Yorioka Satake 1
#6064 Tadanori Koike Hitachi Systems 1
#6064 Wataru Gotou Dai Nippon Printing Co. 1
#6064 Akihito Yamagishi NS Sumikin Stainless 1
#6064 Miruka Ishii Sony 1
#6064 Yuta Sekiya Kureha 1
#6064 Yasunori Yamanobe Sumitomo Metal Mining Co. 1
#6064 Shigeru Ayukawa Kaneka 1
#6064 Shinji Yamagata Mitsubishi Electric 1