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
Chiyoda, JP
All Time
585 patents · 25 inventors
Ranked
#5,372
of 111,555 cities
Top 5%
Showing 1–25 of 25 inventors
Rank
Inventor
Primary Company
Patents
1
Shinya Kato
Denso
61
1
Yukio Abe
Fujitsu Limited
61
3
Kazumasa Suzuki
Toyoda Gosei Co.
57
#4
Kenichi Hamada
Kuraray Co.
53
#5
Keita Hatanaka
Mitsubishi Electric
46
#6
Toshiaki Sugimura
Ntt Docomo
40
#7
Kazuhiko Otsuka
Mitsubishi Electric
33
#8
Masanori Ishida
Seiko Epson
31
#9
Shinji Arai
Kabushiki Kaisha Toshiba
29
#10
Masayuki Kawamoto
Konica Minolta
27
#11
Kouki Hayashi
Ntt Docomo
21
#12
Shinji Oshima
Ngk Insulators
17
#13
Takao Mitsui
Mitsubishi Electric
15
#13
Yuta Ochiai
Toyota
15
#15
Junichi Kamata
Seiko Watch Kabushiki Kaisha
11
#16
Seiichi Matsumura
Mitsubishi Electric
10
#16
Kenji Kumamoto
Mitsubishi Electric
10
#18
Woosuck Shin
National Institute Of Advanced Industrial Science And Technology
8
#19
Kazushige Yoda
Asahi Glass Co.
7
#19
Toshimi Yajima
Agc
7
#19
Masahito Yamada
Sugatsune Kogyo Co.
7
#22
Hideki Miyatake
Mitsubishi Electric
6
#23
Masashi Ishihara
Toyota
5
#23
Shigeaki Takase
Mitsubishi Electric
5
#25
Kenji Ohtsu
Mitsubishi Electric
3