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
Kasugai, JP
2017
84 patents · 32 inventors
Ranked
#2,091
of 41,746 cities
Top 6%
Showing 1–32 of 32 inventors
Rank
Inventor
Primary Company
Patents
1
Naoki Yamada
Canon
13
2
Takashi Murata
Toyota
11
3
Fumiyasu Kato
Kyb
5
3
Tatsuya Yamashita
Toyoda Gosei Co.
5
#5
Yoshiya Tomatsu
Brother Kogyo
4
#5
Naoto Matsuyuki
Apple
4
#5
Shoji Kitanoya
Ngk Spark Plug Co.
4
#8
Katsunori Yazawa
Ngk Spark Plug Co.
3
#8
Kentaro Murayama
Brother Kogyo
3
#8
Ichiro Ando
Menicon Co.
3
#8
Koji Shiotani
Ngk Spark Plug Co.
3
#12
Shiro Kakimoto
Ngk Spark Plug Co.
2
#12
Yoshikazu Shimizu
Brother Kogyo
2
#12
Yasumichi Omoto
Omron Automotive Electronics Co.
2
#12
Mitsuharu Kato
Toyota
2
#12
Hideo Sugai
Applied Materials
2
#17
Tatsuo Ogasawara
Brother Kogyo
1
#17
Mitsuhiro Kamimura
Fuji Silysia Chemical
1
#17
Hideyuki Takeda
Ckd
1
#17
Takaharu Ito
Aica Kogyo Co.
1
#17
Etsuya Ikeda
Ngk Spark Plug Co.
1
#17
Kensuke Hirate
Brother Kogyo
1
#17
Nobuyoshi Watanabe
Asahi Intecc Co.
1
#17
Kazukuni Hara
Denso
1
#17
Masanobu Ogawa
Asahi Glass Co.
1
#17
Masashi OHHASHI
Brother Kogyo
1
#17
Hiroki Iwata
Ckd
1
#17
Taizo Umezaki
Chuo Hatsujo
1
#17
Katsuhisa Hasegawa
Brother Kogyo
1
#17
Aya Adachi
Brother Kogyo
1
#17
Takaya Yoshikawa
Ngk Spark Plug Co.
1
#17
Nobuo Furuta
Ngk Spark Plug Co.
1