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
Kosai, JP
2019
78 patents · 44 inventors
Ranked
#2,428
of 43,611 cities
Top 6%
Showing 1–44 of 44 inventors
Rank
Inventor
Primary Company
Patents
1
Hideomi Adachi
Yazaki
15
2
Tsukasa Sekino
Yazaki
5
3
Hidehiko Kuboshima
Yazaki
4
3
Yoshiaki Takano
Denso
4
#5
Koji Mikami
Canon
3
#5
Shinichiro Ito
Toyota
3
#7
Yasuhiro Mochizuki
Hitachi
2
#7
Takehiko Ohshita
Denso
2
#7
Hideya TOCHIHARA
Hamanakodenso Co.
2
#7
Takafumi Negi
Denso
2
#7
Yasuo Iimori
Yazaki
2
#7
Tamotsu FUKUMA
Primearth Ev Energy Co.
2
#13
Toshiyuki Osawa
Asmo Co.
1
#13
Hikaru OTSUKA
Denso
1
#13
Hiroki Nishi
Adeka
1
#13
Yuuki Fujii
Yazaki
1
#13
Takeyuki Hamaguchi
Yazaki
1
#13
Tomoyasu Terada
Yazaki
1
#13
Hideaki Saitoh
Nippon Sheet Glass Company, Limited
1
#13
Kenji Imamura
Toyota
1
#13
Rintaro Horizumi
Denso
1
#13
Takashi Nagaya
Canon
1
#13
Yoshitsugu Nakagawa
Asmo Co.
1
#13
Tomoki Kubo
Kaneka
1
#13
Chie Morita
Asmo Co.
1
#13
Tomoyuki Fujii
Ngk Insulators
1
#13
Akihiro Utsumi
Asmo Co.
1
#13
Hiroshi Kokubu
Asmo Co.
1
#13
Kimitoshi Makino
Yazaki
1
#13
Kazumasa Iwatsuki
Denso
1
#13
Tetsuro Saimoto
Yazaki
1
#13
Tomohisa Okamoto
Asmo Co.
1
#13
Hirohito Habara
Yazaki
1
#13
Takafumi Toda
Yazaki
1
#13
Takashi Odajima
Yazaki
1
#13
Masayuki Kuwano
Asmo Co.
1
#13
Akio Murase
Denso
1
#13
Yoshinobu Nagao
Asmo Co.
1
#13
Yuuma Kobayashi
Denso
1
#13
Takaki Nose
Denso
1
#13
Yasushi Kanno
Yorozu
1
#13
Takehiro Asakura
Nidek Co.
1
#13
Takeshi Mamiya
Denso
1
#13
Eiji Hoshikawa
Bosch Automotive Systems
1