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
Tokorozawa, JP
1989
195 patents · 117 inventors
Ranked
#191
of 20,767 cities
Top 1%
Showing 1–50 of 117 inventors
Rank
Inventor
Primary Company
Patents
1
Hitoshi Kanamaru
Pioneer Electronic
10
2
Tetsuya Ogawa
Honda Motor Co.
7
2
Toshio Yoshida
Fujitsu Limited
7
#4
Yuichi Matsushima
Kokusai Denshin Denwa Co.
6
#5
Fumihiko Yokogawa
Pioneer Electronic
5
#6
Ryoji Nakazato
G-C Dental Industrial
4
#6
Eiichiro Kawahara
Honda Motor Co.
4
#6
Takahiro Kawagoe
Bridgestone
4
#6
Shiro Baba
Hitachi
4
#6
Seiichi Yokosawa
Pioneer Electronic
4
#6
Takashi Kashiwazaki
Pioneer Electronic
4
#12
Shoichi Sano
Honda Motor Co.
3
#12
Shigeo Kinoshita
Clarion Co.
3
#12
Yutaka Sugita
Hitachi
3
#12
Yasushi Murata
Pioneer Electronic
3
#12
Takanori Sato
Honda Motor Co.
3
#12
Tetsuro Sakuma
Gc
3
#18
Tetsuo Yumoto
Sanko Kasei Co.
2
#18
Kunio Imai
Pioneer Electronic
2
#18
Toshifumi Ito
Honda Motor Co.
2
#18
Hideaki Matsueda
Hitachi
2
#18
Shinzo Someya
Agro-Kanesho Co.
2
#18
Toshio Kurihara
Honda Motor Co.
2
#18
Minao Kimura
Yakult Honsha
2
#18
Yutaka Masumoto
Hosiden
2
#18
Kazuo Igusa
Chugai Pharmaceutical
2
#18
Takahide Ikeda
Hitachi
2
#18
Masakazu Yamashita
Pioneer Electronic
2
#18
Katsumi Kawamura
Pentax
2
#18
Toshihiko Kurihara
Pioneer Electronic
2
#18
Kazumi Kuriyama
Pioneer Electronic
2
#18
Masami Yamaguchi
Murata Manufacturing Co.
2
#18
Tadanori Harada
Canon
2
#18
Tutomu Banno
Pioneer Electronic
2
#18
Yoshiaki Ouchi
Kabushiki Kaisha Toshiba
2
#36
Eiichi Tsukada
NTT
1
#36
Yoshiaki Sugimoto
Tsubakimoto Chain
1
#36
Akira Miyajima
Panasonic
1
#36
Akira Yano
Hitachi Maxell
1
#36
Hidemi Koike
Hitachi
1
#36
Keiichiro Koga
Citizen Watch Co.
1
#36
Kikuji Komine
Toa Nenryo Kogyo
1
#36
Masao Ueno
Nisshin Flour Milling
1
#36
Satoshi Ido
Hitachi
1
#36
Eiichi Kitabayashi
Citizen Watch Co.
1
#36
Shuich Yanagisawa
Pioneer Electronic
1
#36
Ken Sasabe
National Research Institute For Metals
1
#36
Kiichi Komatsubara
Hitachi
1
#36
Fumio Onoki
Hoya
1
#36
Seisuke Tomiya
Bridgestone
1
1
2
3
Next »