Patent Leaderboard
USPTO Patent Rankings Data through Sept 30, 2025

Tokyo, JP ranks #1 worldwide for total patents filed all time, with 716,148 patents from 91,278 inventors. Leading employers of inventors based in Tokyo, JP include Nippon Steel, Hitachi, Ebara.

Showing 17,301–17,350 of 91,278 inventors

Rank Inventor Primary Company Patents
#16169 Masato YUYA Nippon Steel 10
#16169 Katsuo Sugahara Hitachi 10
#16169 Tomonori Hirao Ebara 10
#16169 Kiichi Hori Japan Aviation Electronics Industry, Limited 10
#16169 Mamoru Kubota Clarion Co. 10
#16169 Yoichi Tomo Sony 10
#16169 Masatsugu Kobayashi Sony 10
#16169 Aki Yoguchi Sony 10
#16169 Katsumi Sekiguchi Ntt Docomo 10
#16169 Katsuya Kanakubo Tdk 10
#16169 Takashi Wakana Oki Data 10
#16169 Naokazu Nemoto Hitachi 10
#16169 Yasue Yamazaki Ddk 10
#16169 The Ban Hoang Zeon 10
#16169 Takahiro Yaguchi Nec 10
#16169 Toshihide SHIINO Paramount Bed Co. 10
#16169 Katsuyoshi Hayashi Pioneer Electronic 10
#16169 Atsunori Shibuya Advantest 10
#16169 Tomoyuki Nakata Mitsui Chemicals 10
#16169 Masatake Baba Nec Lcd Technologies 10
#16169 Yukiko Nakamura Ntt Docomo 10
#16169 Soroj Triteyaprasert Sony 10
#16169 Miki Kitahara Fujitsu Component Limited 10
#16169 Yayoi Tokuhara Fujitsu Component Limited 10
#16169 Yoshihiro Ariyama Oki Electric Industry Co. 10
#16169 Kenshiro Kitamura Mitsubishi Electric 10
#16169 Youichi Azuma A⋅T Communications Co. 10
#16169 Akikazu Yachi Olympus 10
#16169 Kyohei Kikuta Canon 10
#16169 Toshiaki Nihoshi Nikon 10
#16169 Tomonori Fukuta Mitsubishi Electric 10
#16169 Takahiro Morinaga Hoya 10
#16169 Hidekazu Tsunoda Yamabiko 10
#16169 Ippei Sato Astellas Pharma 10
#16169 Tsubasa TANDA Mitsubishi Electric 10
#16169 Atsuo Ishikawa Kanegafuchi Kagaku Kogyo 10
#16169 Hideto Noguchi Hitachi 10
#16169 Masanao Karasawa Hidaka Seiki Kabushiki Kaisha 10
#16169 Wataru Takahara Tdk 10
#16169 Kenji Kadota Oki Electric Industry Co. 10
#16169 Hisashi Fukuda Oki Electric Industry Co. 10
#16169 Shigeto Sakashita Jfe Steel 10
#16169 Toru Nakura Mitsubishi Electric 10
#16169 Takatoshi Soga Astellas Pharma 10
#16169 Nobuaki Shindo Astellas Pharma 10
#16169 Kazunori Katada Konica Minolta 10
#16169 Satoshi NAKATSUKASA NTT 10
#16169 Takashi Usuda Nihon Kohden 10
#16169 Shiki Inoue Sony 10
#16169 Hiroko Watanabe Fuji Electronics Industry Co. 10