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 Akebono Brake Industry Co., United Microelectronics, Nippon Chemi-Con.

Showing 10,751–10,800 of 15,298 inventors

Rank Inventor Primary Company Patents
#6064 Kenichi Shimamura Akebono Brake Industry Co. 1
#6064 Kazuaki Takesako United Microelectronics 1
#6064 Daizou Senzai Nippon Chemi-Con 1
#6064 Hiroaki Konishi Snow Brand Milk Products Co. 1
#6064 Takahiro Yoneyama Canon 1
#6064 Masahiro Kawarada Canon 1
#6064 Michihito Matsumoto Mitsubishi Electric 1
#6064 Ritsuo Koga Prevent-Plus 1
#6064 Masami Miwa Nitoms 1
#6064 Kentaro Hashimoto Axikin Pharmaceuticals 1
#6064 Hideto Tamezane Hitachi High-Technologies 1
#6064 Naoki Kunihiro Fuji Electric Co. 1
#6064 Kiyohiro Obara Hitachi 1
#6064 Toshiyuki Oga Nec 1
#6064 Hiroaki Taketani Micron 1
#6064 Masaya Yamashita Asahi Kasei Kabushiki Kaisha 1
#6064 Keiji Manabe Taikisha 1
#6064 Tomohiko Takayama Canon 1
#6064 Koichiro Ino Canon 1
#6064 Yuuta OOTSUKA Ihi 1
#6064 Wataru KUBOTA Ihi 1
#6064 Akihiro Fujii Olympus 1
#6064 Takumi Matsumura Mitsubishi Hitachi Power Systems 1
#6064 Kentarou Fuchino Subaru 1
#6064 Hiroki Ozaki Ricoh Company 1
#6064 Junichi Naoi Sony 1
#6064 Yasuhiko Sugiyama Hitachi High-Tech Science 1
#6064 Joel Cameron Beckwith Nxp Usa 1
#6064 Toshiaki Igarashi Canon 1
#6064 Takashi Koshimizu Ntt Docomo 1
#6064 Tadashi Igarashi Kao 1
#6064 Tomoyuki Takahata The University Of Tokyo 1
#6064 Masato KURAHASHI Mitsubishi Electric 1
#6064 Naoko Ohtani Askat 1
#6064 Ikuno Iguchi Toppan Printing Co. 1
#6064 Sachiko Sugaya Toppan Printing Co. 1
#6064 Hiroo Imazu Canon 1
#6064 Norihisa Mori Jeol 1
#6064 Masaaki Ishimaru Oki Data 1
#6064 Shigeto Sakai Canon 1
#6064 Keiki Fukuda Sony 1
#6064 Yoshihisa TAMAGAWA Tdk 1
#6064 Mitsuhiro Takashima Hitachi Kokusai Electric 1
#6064 Satoshi Sumita Hitachi 1
#6064 Masaya Terai Kabushiki Kaisha Toshiba 1
#6064 Masatoshi Tokita Tokyo Institute Of Technology 1
#6064 Yoshiharu Tsukada Hitachi-Johnson Controls Air Conditioning 1
#6064 Toshiaki Hayakawa Fujitsu Limited 1
#6064 Hideki Mito Mitsubishi Motors 1
#6064 Ryo KAKUTA Nippon Yusen Kabushiki Kaisha 1