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
Kawasaki, JP
1997
2,569 patents · 1,665 inventors
Ranked
#11
of 24,315 cities
Top 1%
Showing 1–50 of 1,665 inventors
Rank
Inventor
Primary Company
Patents
1
Yuji Hamasaki
Canon
24
2
Junichi Omi
Nikon
12
3
Nobuaki Sasagaki
Nikon
11
#4
Akira Katayama
Nikon
10
#4
Seiichi Yasukawa
Nikon
10
#6
Tadao Kai
Nikon
9
#6
Koichi Ohshita
Nikon
9
#8
Tohru Ogawa
Sony
8
#8
Tetsuo Yamanaka
Ricoh Company
8
#8
Kazuo Murakami
—
8
#8
Tadayuki Tsuda
Canon
8
#8
Hisashi Iwamoto
Mitsubishi Electric
8
#13
Keiji Horioka
Kabushiki Kaisha Toshiba
7
#13
Haruhiko Izumi
Fujitsu Limited
7
#13
Kazuto Tsuji
Fujitsu Limited
7
#13
Kazushige Kobayakawa
Fujitsu Limited
7
#13
Shigeki Ohbayashi
Mitsubishi Electric
7
#13
Satoshi Kakuma
Fujitsu Limited
7
#13
Koichi Kimura
Hitachi
7
#13
Kazumi Sekine
Canon
7
#13
Masami Dewa
Fujitsu Limited
7
#13
Kenichi Ishizaka
Fujitsu Limited
7
#23
Daisaburo Takashima
Kabushiki Kaisha Toshiba
6
#23
Hirokazu Aritake
Fujitsu Limited
6
#23
Haruki Takai
Kyowa Hakko Kogyo Co.
6
#23
Osamu Taniguchi
Canon
6
#23
Nobuhiro Fukushima
Fujitsu Limited
6
#23
Hideo Hibino
Nikon
6
#23
Kiyoshi Tsuru
Nkk Co.
6
#23
Ichiro Kataoka
Canon
6
#23
Yuji Katano
Nikon
6
#23
Takashi Kaku
Fujitsu Limited
6
#23
Ryouichi Iwama
Fujitsu Limited
6
#23
Toshio Dobashi
Nikon
6
#35
Norio Sawatari
Fujitsu Limited
5
#35
Ichiro Shinoda
Fujitsu Limited
5
#35
Tohru Ozaki
Kabushiki Kaisha Toshiba
5
#35
Kaoru Furusawa
Minolta Co.
5
#35
Nobuyoshi Hagiuda
Nikon
5
#35
Toshiaki Harada
Canon
5
#35
Yutaka Koizumi
Canon
5
#35
Susumu Matsumura
Canon
5
#35
Takayuki Yagi
Canon
5
#35
Ryoichi Fujita
Canon
5
#35
Kenji Kyuma
Canon
5
#35
Hideyuki Miyata
Fujitsu Limited
5
#35
Koromo Shirota
Canon
5
#35
Ryota Ogawa
Pentax
5
#35
Torachika Osada
Canon
5
#35
Kiyoshi Itano
Fujitsu Limited
5
1
2
3
Next »