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
›
Kajima
KA
Kajima
— 138 Patents
Rank
(All Time):
#5,330
of
106,120
Top 6%
383
inventors
138
Patents All Time
Top Inventors at Kajima
All Time
Showing
1–50
of
383
inventors
Rank
Name
Patents
1
Takuji Kobori
15
2
Koji Ishii
12
3
Isao Nishimura
10
#4
Jun Tagami
9
#4
Makoto Saito
9
#4
Mitsuo Sakamoto
9
#4
Shigeyuki Akihama
9
#8
Nobuyuki Matsui
8
#8
Tatsuo Suenaga
8
#10
Katsuyasu Sasaki
7
#10
Mikio Kobayashi
7
#10
Naoki Niwa
7
#13
Hiroshi Yoshida
6
#13
Kenichi Yano
6
#13
Mitsuo Fukukawa
6
#13
Mitsuhiro Shibazaki
6
#13
Shigeru Ban
6
#13
Shunichi Yamada
6
#13
Toshiyuki Hino
6
#13
Toshikazu Yamada
6
#21
Hideki Ikeda
5
#21
Hiroaki Kubo
5
#21
Hiroaki Nakagawa
5
#21
Kazumitsu Asai
5
#21
Kuniaki Sato
5
#21
Masayuki Yazawa
5
#21
Motoichi Takahashi
5
#21
Norihide Koshika
5
#21
Yoshiharu Okamoto
5
#30
Katsumi Kosuge
4
#30
Kenji Ago
4
#30
Masao Iizuka
4
#30
Masatoshi Ishida
4
#30
Masato Tanaami
4
#30
Shinnosuke Aiba
4
#30
Shunji Jinbo
4
#30
Shuichi Kamagata
4
#30
Shozo Maeda
4
#30
Shunichi Sugishita
4
#30
Shin Terauchi
4
#30
Takahiro Arai
4
#30
Takao Inoue
4
#30
Takeo Kikuchi
4
#30
Takayuki Mizuno
4
#30
Toshio Furuya
4
#30
Yasuyuki Matsubara
4
#30
Yoshinori Matsunaga
4
#30
Yutaka Katsuta
4
#30
Yukihiro Omika
4
#50
Akio Tada
3
1
2
3
Next »
Related Companies
Aktiebolaget Bofors
138
Ls Mtron
138
Hosokawa Yoko Co.
138
Contentguard Holdings
138
David Austin Roses Limited
138
Orbital Research
138
Fractus, S.A.
138
Nuovo Pignone Tecnologie S.R.L.
138
Beijing Institute Of Technology
138