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 Nec, Hitachi, Mitsubishi Gas Chemical Company.

Showing 12,051–12,100 of 15,298 inventors

Rank Inventor Primary Company Patents
#6064 Shunji Motomura Nec 1
#6064 Takeshi Kusunoki Hitachi 1
#6064 Michio Yaginuma Mitsubishi Gas Chemical Company 1
#6064 Yuto Fukui IBM 1
#6064 Akifumi Tsuchiura Kowa Company 1
#6064 Katsuji Onishi Aqua Co. 1
#6064 Katsuyuki Kumano Japan System Planning Co. 1
#6064 Osamu Date Sony 1
#6064 Hiromi Komatsu Japan Synthetic Rubber 1
#6064 Kiyoshi Asai National Institute Of Advanced Industrial Science And Technology 1
#6064 Yuichi SHIGA Olympus 1
#6064 Satoshi Shinbo Tdk 1
#6064 Koshi Ishimoto Ihi 1
#6064 Shou Takami Hitachi 1
#6064 Naoki Masui Oki Data 1
#6064 Mami TSUCHIYA Kyowa Hakko Kirin Co. 1
#6064 Yukinobu Tokieda Japan Radio Co. 1
#6064 Tomoaki Kobata Mitsubishi Electric 1
#6064 Hirokazu Iijima Hitachi Medical 1
#6064 Toshiyuki Mogi Alps Alpine Co. 1
#6064 Masayuki Sasagawa Konica 1
#6064 Yukio Iigahama Fujitsu Limited 1
#6064 Katsuhiko Iwase Ig-Technical Research 1
#6064 Kazuyuki Yamamato Sony 1
#6064 Noriya Sagayama Mitsubishi Electric 1
#6064 Momoe Adachi Sony 1
#6064 Yusuke Kawase Mitsubishi Electric 1
#6064 Masanobu Kishida Renesas Electronics 1
#6064 Wandong Li Yokogawa Electric 1
#6064 Keiko OISHI Oki Data 1
#6064 Hiromitsu Terauchi Hitachi High-Technologies 1
#6064 Katsumi Muramatsu Sony 1
#6064 Satoshi Kashiwabara Asahi Glass Co. 1
#6064 Masaya Tojo Hodogaya Chemical Co. 1
#6064 Kenji Morimura Lion Group 1
#6064 Shigeki Nagaya Hitachi 1
#6064 Minoru Shinohara Renesas Electronics 1
#6064 Tomoka UCHIYAMA Tanita 1
#6064 Yoshimasa Sakai Mitsubishi Chemical 1
#6064 Nobuyoshi Miyahara Sony 1
#6064 Hiromi Yuasa Kabushiki Kaisha Toshiba 1
#6064 Tetsuo Nakazawa Hitachi Medical 1
#6064 Akinori Takahagi 1
#6064 Itsuki Iriuchijima Suntory Holdings Limited 1
#6064 Seiichiro Kitagawa Tokyo Institute Of Technology 1
#6064 Tomohiro Era Kyowa Hakko Kirin Co. 1
#6064 Motohiro Yamaki Tokai Carbon Co. 1
#6064 Ryoko Inagaki Furyu 1
#6064 Satoru Kohno Shimadzu 1
#6064 Yasuo Kouda Kyowa Hakko Kirin Co. 1