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 Mitsubishi Electric, Two Cells Co., Hitachi.

Showing 12,551–12,600 of 15,298 inventors

Rank Inventor Primary Company Patents
#6064 Koichi Sumitani Mitsubishi Electric 1
#6064 Yasufumi Takahashi Two Cells Co. 1
#6064 Katsuto Shimizu Hitachi 1
#6064 Marin Okamoto Waseda University 1
#6064 Mizuho Kurotobi Waseda University 1
#6064 Yuu Koyama Orihiro Engineering Co. 1
#6064 Noriyuki Takeishi Olympus 1
#6064 Masamu Fujita 1
#6064 Kenichi Sakane Toppan Printing Co. 1
#6064 Ryoji Shiina Kajima 1
#6064 Yumiko Murakami Mitsubishi Electric 1
#6064 Taiki Sakamoto Toyo Ink Sc Holdings Co. 1
#6064 Junpei Imoto Mitsubishi Shipbuilding Co. 1
#6064 Takae Hayashi Olympus 1
#6064 Tatsuya Mochida Hitachi-Johnson Controls Air Conditioning 1
#6064 Takuro Uchiyama Stanley Electric Co. 1
#6064 Nobuhito TAKAGI Gc 1
#6064 Tetsutaro Kikuchi Nihon Kohden 1
#6064 Katsuo Katou Jatco 1
#6064 Genki Ichikawa Komatsu 1
#6064 Eri IKEGAMI Mitsubishi Electric 1
#6064 Yuri Sugiura Yahoo Japan 1
#6064 Shinya Suzukake Mitsubishi Aircraft 1
#6064 Bunshi Cho 1
#6064 Kiyonori UGAJIN Sumitomo Mitsui Banking 1
#6064 Remi Takano Japan Science And Technology Agency 1
#6064 Yuji Hirose Hitachi 1
#6064 Sho OCHIAI Bridgestone 1
#6064 Yosuke KOMIYAMA Softbank 1
#6064 Yuusuke Yasuda Hitachi Automotive Systems 1
#6064 Kentaro Tabuchi Sato 1
#6064 Yousuke Sakai Hitachi High-Technologies 1
#6064 Takeo Mimura Renesas Electronics 1
#6064 Yamada Yuji Taiho Pharmaceutical Co. 1
#6064 Toshiaki Kano Dainippon Ink And Chemicals 1
#6064 Misato Kamei Dai Nippon Printing Co. 1
#6064 Takaaki Hara Nec 1
#6064 Shinichiro Yasui Honda Motor Co. 1
#6064 Tsuyoshi Hamaya Nippon Steel 1
#6064 Hiroshi Taniguchi Sumitomo Electric Industries 1
#6064 Yosuke TANI Olympus 1
#6064 Toshiro Okamura Hitachi Chemical Company 1
#6064 Yoshihiro Koga Ibiden Co. 1
#6064 Motohashi Yuichi Sony 1
#6064 Yusuke Tada Japan Display 1
#6064 Nobuhiro Hidaka Sumitomo Osaka Cement Co. 1
#6064 Hidenori Ito Sbi Pharmaceuticals Co. 1
#6064 Kenji TAKAOKA Hitachi Chemical Company 1
#6064 Makoto Yasugi Panasonic 1
#6064 Hisatoshi Saito Oki Data 1