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 Canon, Olympus, Hitachi Industrial Equipment Systems Co..

Showing 14,751–14,800 of 15,298 inventors

Rank Inventor Primary Company Patents
#6064 Hiroyuki Fukuoka Canon 1
#6064 Shintaro Fujii Olympus 1
#6064 Toshikazu Harashima Hitachi Industrial Equipment Systems Co. 1
#6064 Kenji Toyota Renesas Technology 1
#6064 Satoshi Ajiki Mitsumi Electric Co. 1
#6064 Hiroshi Iriguchi Yokogawa Electric 1
#6064 Hiroshi Kiyohara Astellas Pharma 1
#6064 Yoshinori Nakayama Hitachi 1
#6064 Katsunori Todaka Teraoka Seisakusho Co. 1
#6064 Ayuko Yamaguchi Teijin Limited 1
#6064 Akinori Nakano Asm Ip Holding B.V. 1
#6064 Yumi OGAWA Chugai Pharmaceutical 1
#6064 Yoshihiro Satake Mitsumi Electric Co. 1
#6064 Yutaka YAKUWA Nec 1
#6064 Yasuhiro Yokota Fujitsu Limited 1
#6064 Shin Chaki Mitsubishi Electric 1
#6064 Shuji Sagara Dai Nippon Printing Co. 1
#6064 Hiroshi Gokan Mitsubishi Electric 1
#6064 Natsuko Minegishi Konica Minolta 1
#6064 Shigehiro Sugiyama Mitsubishi Electric 1
#6064 Kotaro Nakashima Denso 1
#6064 Satoshi Igi Jfe Steel 1
#6064 Hitoshi Kondoh Ricoh Company 1
#6064 Fujio Onishi Hitachi High-Technologies 1
#6064 Toru Masuda Hitachi 1
#6064 Tatsuo Inoue Aisin Seiki Kabushiki Kaisha 1
#6064 Naomichi Youda Gree Holdings 1
#6064 Takaaki Matsuoka Tokyo Electron Limited 1
#6064 Kohei KADOTA Daiichi Sankyo Company, Limited 1
#6064 Yusaku Kato Sony 1
#6064 Mariko Hino Sony 1
#6064 Satoshi Tanigawa Sumitomo Electric Industries 1
#6064 Kazuaki Fujita Sumitomo Electric Industries 1
#6064 Yoshihiro Mikami Simplex Quantum 1
#6064 Tomohide NISHIYAMA Fujifilm Healthcare 1
#6064 Yoshihito Hagiwara Shinkawa 1
#6064 Kazuyo Narita Nec 1
#6064 Hiroko Kurihara Hitachi Industrial Equipment Systems Co. 1
#6064 Masataka Hidaka Hitachi 1
#6064 Kazuaki KITO Hitachi-Ge Nuclear Energy 1
#6064 Shohei Katayama Mitsubishi Electric 1
#6064 Kenki Takagi Nec 1
#6064 Tomozou Tanaka Nec 1
#6064 Yoshitaka Tone Toyo Ink Sc Holdings Co. 1
#6064 Akira Mogi Honda Motor Co. 1
#6064 Keigo Okada Mitsubishi Electric 1
#6064 Tsuyoshi Chiba Nitto Denko 1
#6064 Kyohei TAKANO Sony 1
#6064 Katsuhiro Hotta Mitsubishi Hitachi Power Systems 1
#6064 Takayuki TAKAZAWA Oki Data 1