Patent Leaderboard
USPTO Patent Rankings
Data through Dec 31, 2025
Search
Companies
Inventors
Cities
States
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
Home
›
Companies
›
Zenyaku Kogyo Co.
ZC
Zenyaku Kogyo Co.
— 34 Patents
Rank
(All Time):
#18,458
of
106,120
Top 20%
68
inventors
34
Patents All Time
Top Inventors at Zenyaku Kogyo Co.
All Time
Showing
1–50
of
68
inventors
Rank
Name
Patents
1
Muneaki Takase
13
2
Seiichiro Kawashima
11
2
Toshiyuki Matsuno
11
#4
Hiroaki Yamazaki
10
#5
Shinichi Yaguchi
8
#6
Kenichi Saitoh
7
#6
Kimitomo Yoshioka
7
#8
Tetsuo Watanabe
6
#9
Hideshi Kobayashi
4
#9
Hiroya Sasahara
4
#9
Naoki Fukuda
4
#9
Yoshio Tsuchida
4
#9
Yoshimasa Yamaguchi
4
#14
Jun-Chao Cai
3
#14
Masaya Higashi
3
#14
Masayuki Takahashi
3
#14
Toshihiko Komatsu
3
#14
Toshiharu Narita
3
#19
Den-ichi Mizuno
2
#19
Hideaki Hanaki
2
#19
Hiroshi Mitsuhashi
2
#19
Ichiro Washizawa
2
#19
Kazuhiko Haruta
2
#19
Keiichi Hiramatsu
2
#19
Kenichi Saito
2
#19
Koji Hayashi
2
#19
Shigeru Abe
2
#19
Sosuke Yasui
2
#19
Susumu Mitsuhashi
2
#19
Toshiaki Suzuki
2
#31
Yasuhiro Izumisawa
1
#31
Naohito Ogose
1
#31
Tsutomu Nakagane
1
#31
Akira Ishiguro
1
#31
Akihisa Miyakawa
1
#31
Hajime Ono
1
#31
Hidenori Harada
1
#31
Hitoshi Miyashita
1
#31
Hideki Sato
1
#31
Hideki Satoh
1
#31
Ichiro Koshimizu
1
#31
Jumpei Enami
1
#31
Kazuhiro Imaizumi
1
#31
Kazuo Kamiya
1
#31
Masahiro Inaba
1
#31
Masanobu Kato
1
#31
Masataka Konishi
1
#31
Manami Masuda
1
#31
Natsuki Otaki
1
#31
Nobuhiro Ishihara
1
1
2
Next »
Related Companies
Sumitomo Electric Toyama Co.
34
Temptronic
34
Scott Bader Company
34
Ultracell
34
Nichibei Co.
34
Imerys Minerals Limited
34
Sol-Light, Llc.
34
Pollard Banknote Limited
34
Avanstrate
34