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 Kao, Konica Minolta, Pentax.

Showing 10,901–10,950 of 11,174 inventors

Rank Inventor Primary Company Patents
#4279 Eri Itaya Kao 1
#4279 Mieko Ohkawa Konica Minolta 1
#4279 Shigeru Iwamoto Pentax 1
#4279 Chieko Yamamoto Shiseido Company, Limited 1
#4279 Muneo Fukaishi Nec 1
#4279 Akira Suga Canon 1
#4279 Tomotaka Yokoyama Hoya 1
#4279 Tadashi Tomonaga Hoya 1
#4279 Kazuya Yanagi Juniper Networks 1
#4279 Kazuhisa Hosaka Sony 1
#4279 Makio Takahashi Hitachi 1
#4279 Ryoichi Matsumoto Canon 1
#4279 Kota Asatsuma Alps Electric Co. 1
#4279 Haruyuki Matsumoto Canon 1
#4279 Kenji Okubo Honda Motor Co. 1
#4279 Hideki Kuwata Unitika 1
#4279 Norikazu Tateishi Mitsubishi Electric 1
#4279 Chiaki AKIYAMA Ricoh Company 1
#4279 Yoshiaki Utsubo Oki Data 1
#4279 Kenji Koido Oki Data 1
#4279 Kouhei Arakawa Zeon 1
#4279 Taira Nishita Ricoh Company 1
#4279 Kousuke Watabe Shiseido Company, Limited 1
#4279 Masato Hida Ddk 1
#4279 Yoshiaki Kumagai Sony 1
#4279 Hidetoshi Katayanagi Konica 1
#4279 Keiji Osano Sony 1
#4279 Kiyoharu Yoshioka Canon 1
#4279 Masayuki Yanagisawa Nec 1
#4279 Yasufumi Iwahori Increment P 1
#4279 Kenji Hontani Toyota 1
#4279 Masayuki Nagamachi Private Access 1
#4279 Go Kondo IBM 1
#4279 Takemasa Takahashi Juniper Networks 1
#4279 Yukio Yokoyama Nec 1
#4279 Reiko Okada Mitsubishi Electric 1
#4279 Atsushi Mitsuzawa Sony 1
#4279 Yasuaki Sumiyoshi Nec 1
#4279 Akiyoshi OGASHIWA Oki Data 1
#4279 Yuuichi Katagishi Nikon 1
#4279 Koutarou Sugisawa Mitsubishi Electric 1
#4279 Akimitsu Hio Sony 1
#4279 Jun Tamaru Canon 1
#4279 Naoki Dai Ebara 1
#4279 Shigehiro Miyashita Nec 1
#4279 Kenji Sakuratani Daiichi Sankyo Company, Limited 1
#4279 Yasuhiro Haba Toppan Printing Co. 1
#4279 Youiti Kado Oki Electric Industry Co. 1
#4279 Rei Miyamoto Juniper Networks 1
#4279 Fumiaki Sugaya Kddi 1