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
›
Hitachi
Hitachi
— 569 Patents in 2021
Rank
(2021):
#68
of
31,506
Top 1%
1,172
inventors
569
Patents 2021
Top Inventors at Hitachi
2021
Showing
1–50
of
1,172
inventors
Rank
Name
Patents
1
Atsuo Inoue
1
1
Masakuni Agetsuma
14
1
Masahiro Oba
1
1
Naoki SHIMODE
1
1
Tateki Harada
1
1
Takashi Mishima
1
1
Tomohide Suzuki
1
1
Yuzo Oshida
1
2
Hideo Saito
12
2
Mitsuo Hayasaka
12
#4
Tomohiro Kawaguchi
11
#5
Akira Yamamoto
10
#5
Takahiro Yamamoto
10
#7
Chetan GUPTA
9
#8
Akiyoshi Tsuchiya
7
#8
Futoshi Kuniyoshi
7
#8
Hisaaki Ochi
7
#8
Keisuke Hatasaki
7
#8
Ryosuke Tatsumi
7
#8
Shinichi Hayashi
7
#8
Yoshinori Ohira
7
#15
Detian Huang
6
#15
Hiroto Ebara
6
#15
Kohhei AIDA
6
#15
Masahiro Kawasaki
6
#15
Shintaro Ito
6
#15
Takeru Chiba
6
#15
Tsukasa Shibayama
6
#15
Yo Taniguchi
6
#23
Daisuke Ishii
5
#23
Hiroaki Akutsu
5
#23
Hironori Emaru
5
#23
Kazuhiro Yamanaka
5
#23
Kenichi Kawabata
5
#23
Masahiro Watanabe
5
#23
Suguru Yokosawa
5
#23
Toru Shirai
5
#23
Tomohiro Yoshihara
5
#23
Yasuhiko Tada
5
#23
Yuji Ogata
5
#23
Yuki Watanabe
5
#35
Ahmed FARAHAT
4
#35
Alexei V. Smirnov
4
#35
Hideyuki Koseki
4
#35
Hideyuki Sagawa
4
#35
Hiroshi Sasaki
4
#35
Hisashi Takahashi
4
#35
Hideya Yoshiuchi
4
#35
Jun Mizuno
4
#35
Kazuo Goda
4
1
2
3
Next »
Industry Peers
Samsung
9,683
Sony
2,683
Panasonic
1,695
Sharp Kabushiki Kaisha
848
Nec
829
Kabushiki Kaisha Toshiba
745
Fujitsu Limited
677