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 (2003):
#112
of 18,594
Top 1%
298 inventors
179
Patents 2003
Top Inventors at Sumitomo Chemical
2003
Showing 1–50 of 298 inventors
Rank
Name
Patents
1
Nobuhiro Usui
6
1
Susumu Miyazaki
6
1
Takeo Kitayama
6
1
Tatsuya Miyatake
6
#5
Junpei Tsuji
5
#5
Keiji Ono
5
#5
Yasunori Uetani
5
#8
Masaaki Nabika
4
#8
Michihiko Fujinami
4
#8
Noriaki Oku
4
#8
Ryuma Kuroda
4
#8
Shigeki Kishiro
4
#8
Tadaaki Nishiyama
4
#8
Yoshihiro Nakatsuji
4
#15
Hidetake Hozumi
3
#15
Hirofumi Johoji
3
#15
Kazunori Iwakura
3
#15
Kazuo Takebe
3
#15
Kazuki Wakamatsu
3
#15
Kohsuke Ohtani
3
#15
Makoto Satoh
3
#15
Moriyasu Shimojo
3
#15
Narutoshi Hayashi
3
#15
Satoshi Hanada
3
#15
Satoshi Okamoto
3
#15
Satoshi Sembo
3
#15
Takanobu Noguchi
3
#15
Tateo Seo
3
#15
Yoshitaka Kobayashi
3
#30
Akira Kamabuchi
2
#30
Fumisato Goto
2
#30
Fumi Yamaguchi
2
#30
Hiroshi Harada
2
#30
Hiroki Inoue
2
#30
Hiroaki Katayama
2
#30
Hironobu Koike
2
#30
Hiroshi Sakaguchi
2
#30
Hideki Sato
2
#30
Hiroyuki Shiraishi
2
#30
Hiroshi Souda
2
#30
Hiroyuki Sugimoto
2
#30
Hisashi Watanabe
2
#30
Jun Yamamoto
2
#30
Junichi Yoshida
2
#30
Kazunori Akiyoshi
2
#30
Kazunori Kanamori
2
#30
Kazuo Takaoki
2
#30
Kenji Ikudome
2
#30
Kenichiro Itami
2
#30
Kenichi Ohkawa
2
1
2
3
Next »