Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025

Ugo, JP ranks #4,728 worldwide for total patents filed all time, with 574 patents from 203 inventors. Leading employers of inventors based in Ugo, JP include Eisai, Komatsu, Sanyo Electric Co..

Showing 1–50 of 203 inventors

Rank Inventor Primary Company Patents
1 Tetsuya Kawahara Eisai 27
2 Jin Kitajima Komatsu 17
3 Shigeya Ishigaki Sanyo Electric Co. 15
#4 Masuo Hirota Wacom Co. 14
#5 Michio Kinoshita Fanuc 13
#6 Mitsuyoshi Shouji Hitachi 11
#7 Fumi Hara Taiyo Yuden Co. 10
#7 Tsuneaki Kawaguchi Hitachi 10
#7 Hisahiro Yasuda Taiyo Yuden Co. 10
#10 Takuo Kodaira Taiyo Yuden Co. 9
#10 Hideyuki Fukuhara Texas Instruments 9
#10 Satoru Tsuchida Hitachi Chemical Company 9
#13 Hiroyuki Kanari Micro Co. 8
#14 Toshikazu Takehana Hitachi Powdered Metals Co. 7
#15 Katsuo Watanabe Hitachi 6
#15 Kimio Handa Canon 6
#15 Hiroaki Uenishi Taiyo Yuden Co. 6
#15 Takehito Takahashi Komatsu 6
#15 Kenji Teramoto Mitsubishi Electric 6
#15 Kazuo Funazaki Kuraray Co. 6
#21 Toshitsugu Miyawaki Hitachi 5
#21 Kentaro Yamamura Tokyo Electron Limited 5
#21 Ayao Ogawa Seiko Epson 5
#21 Ikuo Ogo Advanced Display 5
#21 Kenji Kan Sanyo Electric Co. 5
#21 Junko Ohkanda Achillion Pharmaceuticals 5
#21 Shigekatsu Sato Japan Ae Power Systems 5
#21 Katsuya Koganei Tonen 5
#21 Satoshi Ohtsuki Horiba 5
#30 Hidenori Okura Rubbermaid Incorporated 4
#30 Yuuichi Tsuda Japan Servo Co. 4
#30 Kenji Miharu Du Pont-Mitsui Polychemicals Co. 4
#30 Sachie Shizuka Seiko Epson 4
#30 Yuichi Yoshimura Yamasa 4
#30 Katsutoshi Nishiura Eisai R&D Management Co. 4
#30 Miwa Takahashi Nisshin Flour Milling 4
#30 Kiyokazu Nakane Hitachi Astemo 4
#30 Kei Miyazaki Tokyo Electron Limited 4
#30 Takeshi Hiramoto Nihon Sanmo Dyeing Co. 4
#30 Hiroaki Kurishima Tokyo Electron Limited 4
#30 Eiji Tsukada 4
#30 Katsuhiko Hidaka Mitsubishi Chemical 4
#30 Makoto Oomura Fujinon 4
#30 Masaki Morimatsu Kabushiki Kaisha Top 4
#30 Masafumi Shimowake Nippon Ketjen Co. 4
#30 Yuko Hoshida Kansai Paint Co. 4
#30 Toshio Ichizaki Canon 4
#30 Atsushi Yashiro Kyowa Hakko Kogyo Co. 4
#30 Shoji Ago Kyowa Hakko Kogyo Co. 4
#30 Shigeki Numaga Texas Instruments 4