Patent Leaderboard
USPTO Patent Rankings Data through Sept 30, 2025

Tokyo, JP ranks #1 worldwide for total patents filed in 2011, with 21,999 patents from 11,174 inventors. Leading employers of inventors based in Tokyo, JP include Ricoh Company, Mochida Pharmaceutical Co., Freebit Co..

Showing 9,901–9,950 of 11,174 inventors

Rank Inventor Primary Company Patents
#4279 Takeshi Yoshizumi Ricoh Company 1
#4279 Yasushige Akada Mochida Pharmaceutical Co. 1
#4279 Takafumi Kusano Freebit Co. 1
#4279 Daiji Ishii Nec 1
#4279 Naoki Tsukiji Furukawa Electric Co. 1
#4279 Katsuichi Uchida Oval 1
#4279 Isao Tochihara Nec Energy Devices 1
#4279 Kenichi Takai Nec 1
#4279 Naoyuki Uramatsu Pioneer 1
#4279 Sumiyo Shiosaka Nec 1
#4279 Yoshinori Takahata Adeka 1
#4279 Ken Moro Nikon 1
#4279 Kohta Yamada Asahi Glass Co. 1
#4279 Daiichi Koide Ricoh Company 1
#4279 Takayuki Arisaka Kabushiki Kaisha Toshiba 1
#4279 Kazuki Arakawa Denso 1
#4279 Yoichi Yamagishi Canon 1
#4279 Kiyotaka Uchimoto National Institute Of Information And Communications Technology 1
#4279 Hiroo Kunimori National Institute Of Information And Communications Technology 1
#4279 Masanori Kodaira Mazda Motor 1
#4279 Hajime Oshima Canon 1
#4279 Keiichi Kajiyama Disco 1
#4279 Katsumasa Nishikawa Canon 1
#4279 Hiroaki Oshida Nec 1
#4279 Yuuichi Ishii Ricoh Company 1
#4279 Yoshiaki Akiyama Stanley Electric Co. 1
#4279 Yukako Fukuhira Teijin Limited 1
#4279 Atsuhiro Sugidachi Sankyo Holdings Co. 1
#4279 Nobuhiro Ueno Konica Minolta 1
#4279 Seiji Kitano Olympus Medical Systems 1
#4279 Tooru Kashioka Mitsubishi Cable Industries 1
#4279 Yoshikatsu Hasegawa Ryosei Electro-Circuit System 1
#4279 Kikuya Ito Topy Kogyo Kabushiki Kaisha 1
#4279 Nobuo Ito Ohi Seisakusho Co. 1
#4279 Takaaki Yoshihiro Nec 1
#4279 Junya Araki Sony 1
#4279 Yasuharu Oda Olympus Medical Systems 1
#4279 Kouichi Kasiwabara 1
#4279 Shiro Ohmura Tosho 1
#4279 Seiji Mashimo Canon 1
#4279 Sumio Ashida Kabushiki Kaisha Toshiba 1
#4279 Makoto Kobara Kabushiki Kaisha Toshiba 1
#4279 Manami Naito Mitsubishi Electric 1
#4279 Tomokazu Matsusue Mochida Pharmaceutical Co. 1
#4279 Michiyuki Sugino Sharp Kabushiki Kaisha 1
#4279 Yoshifumi Katsumata Ebara 1
#4279 Tadashi Arakawa Canon 1
#4279 Takeshi Sasakura Kajima 1
#4279 Akihiro Sonoda Oki Electric Industry Co. 1
#4279 Kozo Tajiri Nippon Shokubai Co. 1