Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025

Kato, JP ranks #9,534 worldwide for total patents filed all time, with 214 patents from 53 inventors. Leading employers of inventors based in Kato, JP include Nippon Zoki Pharmaceutical Co., Smc, Fujisawa Pharmaceutical Co..

Showing 1–50 of 53 inventors

Rank Inventor Primary Company Patents
1 Ko Nakamura Nippon Zoki Pharmaceutical Co. 39
2 Kenji Fukushima Smc 24
3 Takashi Ogino Fujisawa Pharmaceutical Co. 21
#4 Mitsuru Naiki Nippon Zoki Pharmaceutical Co. 18
#5 Kunihiko Higashiura Nippon Zoki Pharmaceutical Co. 11
#6 Hiroki Ohashi Fujitsu Limited 9
#7 Yoshiyuki Kujihashi Itoh Denki Co. 7
#7 Yoshitaka Nakazawa Nippon Zoki Pharmaceutical Co. 7
#9 Hiroyoshi Nanba Nippon Zoki Pharmaceutical Co. 4
#9 Makoto Yukawa A.L.M.T. 4
#9 Kazuyoshi Sawada Nippon Zoki Pharmaceutical Co. 4
#9 Hiroyuki Yoshida Nippon Zoki Pharmaceutical Co. 4
#13 Yoshiyuki Kitanaka Fujitsu Limited 3
#13 Tomohiro Ookubo Nippon Zoki Pharmaceutical Co. 3
#13 Tomonori Matsumoto Nippon Zoki Pharmaceutical Co. 3
#13 Hirohisa Nakabayashi Fujitsu Limited 3
#13 Kentaro Shiro Tungaloy 3
#13 Ryozo Yoneda Nippon Zoki Pharmaceutical Co. 3
#19 Katsushige Kori Fujitsu Limited 2
#19 Koji Sawa A.L.M.T. 2
#19 Akitomo Kozuki 2
#19 Yoshiro Dohi 2
#19 Takumi Numazawa Nippon Zoki Pharmaceutical Co. 2
#19 Masaki Noborio Fujitsu Limited 2
#19 Isamu Kaneyasu Fujitsu Limited 2
#19 Koji Kunimasu Nippon Zoki Pharmaceutical Co. 2
#19 Tomoyuki Okada Nippon Zoki Pharmaceutical Co. 2
#28 Katsufumi Onaka Fujitsu Limited 1
#28 Tsukasa Gouro Fujitsu Limited 1
#28 Hirohisa Koterasawa A.L.M.T. 1
#28 Sadateru Nakamatsu A.L.M.T. 1
#28 Shuichi Amino A.L.M.T. 1
#28 Masanori Hoshika A.L.M.T. 1
#28 Kazuyoshi Sakazawa Fujitsu Limited 1
#28 Teppei Seguchi Nippon Zoki Pharmaceutical Co. 1
#28 Hikaru Yamazaki A.L.M.T. 1
#28 Soichi Takeuchi Fujitsu Limited 1
#28 Fumikazu Fujimoto Fujitsu Limited 1
#28 Yasushi Kisimoto Fujitsu Limited 1
#28 Akira Tomofuji Kawasaki 1
#28 Kyoko Fujita Fujitsu Limited 1
#28 Munehiro Tsujimoto A.L.M.T. 1
#28 Teruyuki Kumazawa A.L.M.T. 1
#28 Keiko Usunaga Fujitsu Limited 1
#28 Kazuo Hokugoh Fujitsu Limited 1
#28 Akinori Tanizawa Fujitsu Limited 1
#28 Osamu Morino 1
#28 Hiroyuki Iwatsuki Nippon Zoki Pharmaceutical Co. 1
#28 Hiroyuki Ohhara Nippon Zoki Pharmaceutical Co. 1
#28 Kazuki Taguchi Agc 1