Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025

Yasu, JP ranks #5,711 worldwide for total patents filed all time, with 447 patents from 107 inventors. Leading employers of inventors based in Yasu, JP include Seiko Epson, Teikoku Tsushin Kogyo Co., Mitsui Chemicals Agro.

Showing 1–50 of 107 inventors

Rank Inventor Primary Company Patents
1 Eiji Kanda Seiko Epson 52
2 Shinji Mizuno Teikoku Tsushin Kogyo Co. 32
3 Hideki Umetani Mitsui Chemicals Agro 18
#4 Junji Fujikawa Dai Nippon Printing Co. 14
#5 Keizou SAKURAI Kyocera 12
#5 Teruhiko Ichimura Ebara 12
#5 Nobuyuki Shima Olympus 12
#5 Youji Kobayashi Kyocera 12
#9 Shigeki Kitamura Casio Computer Co. 11
#9 Kenichirou Koga Kyocera 11
#11 Shohei MAO Kyocera 9
#12 Masahiko Nishide Orion Electric Company 8
#13 Tomonori Muraki Murata Manufacturing Co. 7
#13 Norihiko Matsushima Kyocera 7
#13 Kiyoko Tanaka Mitsui Chemicals Agro 7
#13 Sadafumi Koda Mitsui Toatsu Chemicals, Incorporated 7
#13 Michiko Nagahara Kaken Pharmaceutical Co. 7
#13 Toshihiro Matsumura Sumitomo Electric Industries 7
#13 Toshiyuki Kakimoto Omron 7
#13 Kohichi Ohsumi Kyocera Slc Technologies 7
#21 Shigehiro Kato Sankyo Holdings Co. 6
#21 Yongbo Xu Dalian University Of Technology 6
#23 Hajimu Iwai Omron 5
#23 Munetsugu Morimoto Mitsui Chemicals Agro 5
#23 Haruo Mamiya Haier Group 5
#23 Kentaro Sakai Tosoh Finechem 5
#23 Mitsuhiro Yokokawa Moldino Tool Engineering 5
#23 Yoshiko Okada Murata Manufacturing Co. 5
#29 Katsuhiro Fujita Sankyo Holdings Co. 4
#29 Masahiko Horiuchi Kyocera 4
#29 Kazuko Tanaka Sanyo Electric Co. 4
#29 Hironori Nishikoori Kyocera 4
#29 Hideakira Tsuji Sankyo Holdings Co. 4
#29 Kazunori Hosomi Noritake Co., Limited 4
#29 Hideo Miki Biopharm Gesellschaft Zur Biotechnologischen Entwicklung Von Pharmaka Mbh 4
#29 Mari Yaoi Murata Manufacturing Co. 4
#37 Fumie Kajino Mitsui Chemicals Agro 3
#37 Ayuki HAYASHISHITA Kyocera 3
#37 Shin Nagae Kyocera 3
#37 Tomoya KON Kyocera 3
#37 Noriyasu Noguchi Toray Industries 3
#37 Yukihiro Kusuda Kyocera 3
#37 Tomohiro Satou Mitsubishi Chemical 3
#37 Hisayoshi WADA Kyocera 3
#37 Hisao Matsui Nippon Oil 3
#37 Hidekazu Nakashima Toray Industries 3
#37 Syunroku Tohyama Toray Industries 3
#48 Yuuki Iharada Mitsubishi Hitachi Tool Engineering 2
#48 Takeko Tamura Honda Motor Co. 2
#48 Terutomo Dohmae The Procter & Gamble 2