Patent Leaderboard
USPTO Patent Rankings
Data through Sept 30, 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
›
Kyowa Co.
KC
Kyowa Co.
Rank
(All Time):
#21,834
of
106,127
Top 25%
64
inventors
28
Patents All Time
Top Inventors at Kyowa Co.
All Time
Showing
1–50
of
64
inventors
Rank
Name
Patents
1
Saiji Nozaki
8
2
Kuniaki Kamiya
7
3
Hironori Kawamura
5
#4
Ikuo Moriyama
3
#4
Koji Kajiwara
3
#4
Tomoji Abe
3
#4
Toshihiro Tanaka
3
#8
Hiroyuki Takahashi
2
#8
Isao Imanishi
2
#8
Kazuyuki Takahashi
2
#8
Kiyoe Takahashi
2
#8
Motoo Yoshioka
2
#8
Nobuyoshi Oike
2
#8
Shigeru Matsuo
2
#8
Shinichi Tanaka
2
#8
Takeo Fujitani
2
#8
Takeshi Hirota
2
#8
Takahito Ohkubo
2
#8
Yoshio Iwai
2
#20
Atsushi Kanda
1
#20
Hajime Mura
1
#20
Hidehiro Fujita
1
#20
Hisako Hara
1
#20
Hirofumi Koyama
1
#20
Hidekazu Oue
1
#20
Issei Umetsu
1
#20
Jinnosuke Takakura
1
#20
Junzo Ota
1
#20
Kazuharu Kato
1
#20
Kajio Matsuoka
1
#20
Kazuo Oyama
1
#20
Kenji Nabeshima
1
#20
Koji Kawasaki
1
#20
Kotaro ODA
1
#20
Kotaro Yoshimura
1
#20
Masaaki Fukuyasu
1
#20
Masataka Kinoshita
1
#20
Masahiro Kubo
1
#20
Manabu Miyawaki
1
#20
Masaharu Taniguchi
1
#20
Masato Yoshino
1
#20
Naoyuki Yada
1
#20
Norio Kashihara
1
#20
Norio Yoshikawa
1
#20
Richard D. Stolk
1
#20
Satoshi Inagaki
1
#20
Shinichiro Kuno
1
#20
Shino Tange
1
#20
Soichi Tange
1
#20
Sukeo Tamura
1
1
2
Next »
Related Companies
Radian Group
28
Stichting Sanquin Bloedvoorziening
28
Applied Molecular Evolution
28
Haskell Office
28
Beijing Kongming Technology Co.
28
Xianyang Caihong Optoelectronics Technology Co.
28
Muller Martini Holding Ag
28
Inc. Hexima Limited
28
S.S. Steiner
28