Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025

Chonan, JP ranks #9,944 worldwide for total patents filed all time, with 202 patents from 56 inventors. Leading employers of inventors based in Chonan, JP include Unknown, Pixtronix, Azbil.

Showing 1–50 of 56 inventors

Rank Inventor Primary Company Patents
1 Takafumi Fujita Unknown 25
2 Masataka Okamoto Pixtronix 11
3 Shinsuke Yamasaki Azbil 9
#4 Fumitaka Suto Dow Corning Toray Silicone Company 8
#4 Masakazu Irie Dow Corning Toray Co. 8
#4 Takayuki Aso Dow Corning Toray Silicone Company 8
#4 Rikako Tazawa Dow Corning Toray Silicone Company 8
#4 Yoshiko Otani Dow Corning Toray Silicone Company 8
#9 Ryuko Manzouji Dow Corning Toray Silicone Company 6
#9 Junichi Maeshima Dow Corning Toray Silicone Company 6
#9 Ryoto Shima Dow Corning Toray Silicone Company 6
#12 Hiroyuki Takigawa Ampac Limited 5
#12 Kazutoshi Okabe Dow Corning Toray Silicone Company 5
#12 Naoya Matsui Sony 5
#12 Tadashi Hamachi Dow Corning Toray Silicone Company 5
#12 Kazumi Kanesaka Panasonic 5
#12 Koji Shiromoto Dow Corning Toray Silicone Company 5
#12 Masato Kodama Tanita 5
#12 Taku Koyama Dow Corning Toray Silicone Company 5
#12 Takayoshi Otomo Dow Corning Toray Co. 5
#21 Naoji Kawamura Dow Corning Toray Silicone Company 3
#22 Hiroshige Kobayashi 2
#22 Seiichi Sugimoto Dow Corning Toray Silicone Company 2
#22 Nobuki Sigemori Chugai Photo Chemical Co. 2
#22 Takaki Aoyama Dow Corning Toray Co. 2
#22 Hirotoki Morimoto Dow Corning Toray Co. 2
#22 Kazuhiro Isoyama Dow Corning Toray Silicone Company 2
#22 Takae Ishikawa Dow Corning Toray Silicone Company 2
#22 Hiroyosi Naito Dow Corning Toray Silicone Company 2
#22 Makoto Kokubun Dow Corning Toray Silicone Company 2
#22 Takae Takeuchi Dow Corning Toray Silicone Company 2
#22 Ryuko Manzoji Dow Corning Toray Silicone Company 2
#22 Akiko Takanami Dow Corning Toray Co. 2
#22 Masaya Nagashima 2
#22 Yushin Yoneda 2
#22 Shigetomo Shiroki 2
#22 Kuniko Aida 2
#38 Kanzuo Hirai Toray Silicone Co. 1
#38 Tooru Masatomi Dow Corning Toray Silicone Company 1
#38 Kazuteru Furuichi Hitachi Displays 1
#38 Shoji Akamastu Dow Corning Toray Silicone Company 1
#38 Koji Sagami 1
#38 Yoshitsuga Morita Dow Corning Toray Co. 1
#38 Koich Ishida Dow Corning Toray Silicone Company 1
#38 Naoto Uyama Novozymes A/S 1
#38 Kyosuke Takiuchi 1
#38 Yoshibumi Mukai Unknown 1
#38 Ozaki Masaru Dow Corning Toray Silicone Company 1
#38 Yohkichi Yamamoto Dow Corning Toray Silicone Company 1
#38 Junichi Maeshiam Dow Corning Toray Silicone Company 1