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
›
Hitachi
Hitachi
Rank
(All Time):
#13
of
106,127
Top 1%
28,566
inventors
44,478
Patents All Time
Top Inventors at Hitachi
All Time
Showing
3,901–3,950
of
28,566
inventors
Rank
Name
Patents
#3813
Kazuhiko Hosomi
11
#3813
Kazuo Ikeuchi
11
#3813
Kazuyoshi Irie
11
#3813
Kazuyuki Ito
11
#3813
Kazumi Iwai
11
#3813
Kazuhiro Kaizaki
11
#3813
Kazuyuki Kodama
11
#3813
Katsutoshi Nakatani
11
#3813
Kazuhiko Nishiyama
11
#3813
Kazuki Takahashi
11
#3813
Kazuya Takahashi
11
#3813
Kazuo Takaku
11
#3813
Katsuyuki Terada
11
#3813
Kazuki Watanabe
11
#3813
Kazutoshi Yoshida
11
#3813
Katsuo Yuhara
11
#3813
Keiji Kobashi
11
#3813
Ken Naganuma
11
#3813
Kenichiro Nakajima
11
#3813
Kenji Obara
11
#3813
Kenji Ohta
11
#3813
Kenichi Okajima
11
#3813
Keizo Shimada
11
#3813
Keiko Tanigawa
11
#3813
Keiichi Tokuyama
11
#3813
Ken Tsugane
11
#3813
Keisuke Yamakawa
11
#3813
Ken Yasuda
11
#3813
Kenetsu Yokogawa
11
#3813
Kiyoshi Masuda
11
#3813
Kiyokazu Nakagawa
11
#3813
Kiyoshi Nakai
11
#3813
Kiyonori Ohyu
11
#3813
Kihachiro Tanaka
11
#3813
Kohhei AIDA
11
#3813
Kozue Fujii
11
#3813
Koji Fujisaki
11
#3813
Kohei Ito
11
#3813
Kotaro Kitamura
11
#3813
Koji Obata
11
#3813
Koji Takahashi
11
#3813
Kouichi Ushiroda
11
#3813
Koki Uwano
11
#3813
Koshi Yoshimura
11
#3813
Kunio Sato
11
#3813
Masato Arai
11
#3813
Machiko Asaie
11
#3813
Masahiko Asano
11
#3813
Masakazu Ejiri
11
#3813
Masayuki Fujio
11
« Prev
77
78
79
80
81
Next »
Industry Peers
Samsung
175,578
Sony
73,210
Fujitsu Limited
55,272
Kabushiki Kaisha Toshiba
53,330
Panasonic
39,942
Nec
35,886
Sharp Kabushiki Kaisha
26,341