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
RK
Riso Kagaku
Rank (2002):
#381
of 18,242
Top 3%
62 inventors
50
Patents 2002
Top Inventors at Riso Kagaku
2002
Showing 1–50 of 62 inventors
Rank
Name
Patents
1
Jun Nakamura
4
1
Shinya Okada
4
1
Yukio Irie
4
#4
Hideaki Nogi
3
#4
Hikaru Oike
3
#4
Katsuro Motoe
3
#4
Yoshiyuki Okada
3
#8
Hideyuki Kinoshita
2
#8
Hiroshi Watanabe
2
#8
Hideharu Yoneoka
2
#8
Kenji Oshima
2
#8
Kenji Yoshida
2
#8
Kinya Ono
2
#8
Mitsuru Takeno
2
#8
Noboru Inamine
2
#8
Tomohiro Mizutani
2
#8
Yasuhiro Takahashi
2
#8
Yoshikazu Hara
2
#19
Atsushi Suzuki
1
#19
Atsushi Takata
1
#19
Aya Nakadai
1
#19
Hiroshi Kaneda
1
#19
Hiroshi Matsuda
1
#19
Hisako Sato
1
#19
Hideyuki Sekiguchi
1
#19
Hideo Watanabe
1
#19
Hitoshi Watanabe
1
#19
Hidetoshi Watanabe
1
#19
Junji Takahashi
1
#19
Junichi Terauchi
1
#19
Kazuhiro Kato
1
#19
Katsumi Kawagoe
1
#19
Kengo Sugaya
1
#19
Koichi Hashimoto
1
#19
Koji Nakayama
1
#19
Koichi Uchiyama
1
#19
Kunio Nomura
1
#19
Makoto Furutsuka
1
#19
Masakazu Miyata
1
#19
Masahiro Nishihata
1
#19
Masaharu Ogata
1
#19
Masaki Orimoto
1
#19
Mitsuaki Ishitoya
1
#19
Muneaki Kawai
1
#19
Ryoichi Imai
1
#19
Satoru Komata
1
#19
Shigeki Fukai
1
#19
Shinya Hatano
1
#19
Shigenori Ishii
1
#19
Shoichi Miyata
1
1
2
Next »