Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
MC

Mitsui Chemicals — 1,817 Patents

Rank (All Time): #466 of 106,120Top 1%
2,279 inventors
1,817 Patents All Time

Top Inventors at Mitsui Chemicals All Time

Showing 1–50 of 2,279 inventors

RankNamePatents
1 Terunori Fujita 44
2 Seiichi Kobayashi 40
3 Satoshi Yamasaki 39
#4 Toshiyuki Tsutsui 35
#5 Masaaki Kawasaki 34
#6 Yasushi Tohi 32
#7 Kazuo Kohmura 30
#7 Keiji Okada 30
#9 Junji Saito 28
#9 Mamoru Tanaka 28
#11 Masayoshi Yamaguchi 27
#12 Hiroshi Hoya 26
#13 Koju Okazaki 25
#13 Tadahito Nobori 25
#15 Akinori Ryu 24
#15 Naoyuki Kakinuma 24
#15 Ronald D. Blum 24
#15 Shinji Kiyono 24
#15 Tomoaki Matsugi 24
#20 Hiroyuki Katsuta 23
#20 Makoto Mitani 23
#20 Shigetoshi Kuma 23
#23 Mamoru Takahashi 22
#23 Shigekazu Matsui 22
#25 Hidetoshi Hayashi 21
#25 Keisuke Takuma 21
#25 Kotaro Ichino 21
#25 Masayuki Furuya 21
#25 Mitsunobu Yoshida 21
#25 Shinsuke Ito 21
#25 Takeshi Nishimura 21
#25 Tadahiro Sunaga 21
#33 Atsuo Otsuji 20
#33 Kenichi Sugimoto 20
#33 Kenichi Suzuki 20
#33 Kiminori Noda 20
#33 Masanobu Ajioka 20
#33 Toshihiko Nakagawa 20
#39 Atsushi Shibahara 19
#39 Norio Kashiwa 19
#39 Ryoji Mori 19
#39 Shinichi Kojoh 19
#39 Tatsuhiro Urakami 19
#44 Kuniaki Kawabe 18
#44 Masaru Kawaguchi 18
#44 Masahiko Okamoto 18
#44 Takashi Hakuta 18
#44 Tetsunori Shinozaki 18
#44 Yoshiharu Kikuchi 18
#50 Akira Uchiyama 17