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
IC
Idemitsu Kosan Co.
Rank (All Time):
#378
of 106,127
Top 1%
1,237 inventors
2,264
Patents All Time
Top Inventors at Idemitsu Kosan Co.
All Time
Showing 401–450 of 1,237 inventors
Rank
Name
Patents
#327
Yoshio Okamoto
4
#327
Yoji Sunagawa
4
#327
Yoshiaki Takahashi
4
#327
Yusuke Nakanishi
4
#327
Yuichi Ohki
4
#327
Yutaka Takakura
4
#327
Akira Kaijou
4
#327
Asami KOGA
4
#409
Fumio Yamakawa
3
#409
Gakuji Takegoshi
3
#409
Haruhiko Mori
3
#409
Hiroki Fujinami
3
#409
Hiromi Hayasaka
3
#409
Hiroshi Iida
3
#409
Hiromori Ishihara
3
#409
Hiroyuki Iwabuchi
3
#409
Hiroaki Kezuka
3
#409
Hiroto Matsumoto
3
#409
Hisato MATSUMOTO
3
#409
Hideaki Ogawa
3
#409
Junzo Harada
3
#409
Jun Imai
3
#409
Jun Kohiruimaki
3
#409
Junpei Maruyama
3
#409
Jun Sugiyama
3
#409
Kazuhiro Hashima
3
#409
Katsuyoshi Hoshino
3
#409
Kazushige Ideta
3
#409
Kana Minamimoto
3
#409
Kazuo Murakata
3
#409
Kazuo Ota
3
#409
Kenro Noguchi
3
#409
Kenji Onodera
3
#409
Kenji Sasaki
3
#409
Kenichi Wakui
3
#409
Koki Ito
3
#409
Konomu Kurisaki
3
#409
Koichi Takahashi
3
#409
Makoto Ando
3
#409
Masahiro Iwahara
3
#409
Masahiko Kido
3
#409
Masahiro Kitayama
3
#409
Masahiro Kubo
3
#409
Masaya Kubota
3
#409
Masashi Ohyama
3
#409
Masao Saito
3
#409
Masayuki Takahashi
3
#409
Masahito Yamashita
3
#409
Mitsuaki Iino
3
#409
Mitsuko Murata
3
« Prev
7
8
9
10
11
Next »