Patent Leaderboard
All Time
2025
2024
2023
2022
2021
2020
2019
2018
2017
2016
2015
2014
2013
2012
2011
2010
2009
2008
2007
2006
2005
2004
2003
2002
2001
2000
1999
1998
1997
1996
1995
1994
1993
1992
1991
1990
1989
1988
1987
1986
1985
1984
1983
1982
1981
1980
Search
Companies
Inventors
Cities
States
SC
Sumitomo Chemical
Rank (1989):
#58
of 11,124
Top 1%
315 inventors
148
Patents 1989
Top Inventors at Sumitomo Chemical
1989
Showing 51–100 of 315 inventors
Rank
Name
Patents
#25
Hirotaka Takano
3
#52
Yasuo Tezuka
2
#52
Yoshiharu Fukui
2
#52
Yoshiaki Hayashi
2
#52
Yoji Sakito
2
#52
Yoshio Tanimoto
2
#52
Yoshiaki Togawa
2
#52
Yukio Manabe
2
#52
Kazuhiro Tada
2
#52
Kazunori Tsushima
2
#52
Katsuya Watanabe
2
#52
Kentaro Mashita
2
#52
Ken-ichi Nishio
2
#52
Kiyoyasu Hashimoto
2
#52
Kiyosi Ikeda
2
#52
Kizuku Wakatsuki
2
#52
Kozo Tsuji
2
#52
Kuniaki Asai
2
#52
Masahiro Fukuyama
2
#52
Makoto Hanabata
2
#52
Makoto Hatakoshi
2
#52
Masahiro Kakugo
2
#52
Masato Mizutani
2
#52
Mitsuyuki Okada
2
#52
Naonori Hirata
2
#52
Nobuaki Mito
2
#52
Noboru Yamaguchi
2
#52
Norihisa Yamashita
2
#52
Satoru Inoue
2
#52
Seiji Takao
2
#52
Seimei Yasui
2
#52
Shuichi Kanagawa
2
#52
Takaharu Ikeda
2
#52
Takanori Kume
2
#52
Tadashi Ohsumi
2
#52
Tadashi Ooishi
2
#52
Tetsuya Miyamoto
2
#52
Teruo Saito
2
#52
Toshiki Doi
2
#52
Toshitsugu Kikuchi
2
#52
Toshiyuki Kobashi
2
#52
Toshio Sasaki
2
#52
Tomoaki Seki
2
#52
Tsuguhiro Katoh
2
#52
Akihiro Furuta
2
#52
Akinobu Shiga
2
#52
Chinehito Ebina
2
#52
Haruki Okamura
2
#52
Hidekimi Kadokura
2
#52
Hitoshi Kikui
2
« Prev
1
2
3
4
Next »