Patent Leaderboard
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
Search
Companies
Inventors
Cities
States
Hitachi, JP
1997
652 patents · 400 inventors
Ranked
#60
of 24,315 cities
Top 1%
Showing 51–100 of 400 inventors
Rank
Inventor
Primary Company
Patents
#31
Yukio Kurosawa
Hitachi
3
#31
Toru Koyama
Toyoda Gosei Co.
3
#31
Junjiro Nakajima
Hitachi
3
#31
Tomoichi Kamo
Hitachi
3
#31
Toshimi Matsumoto
Hitachi
3
#31
Yasuo Kaminaga
Hitachi
3
#31
Hironori Shimogama
Hitachi
3
#31
Shingo Shirakawa
Hitachi
3
#31
Satoshi Kanno
Hitachi
3
#31
Masahisa Inagaki
Hitachi
3
#61
Shigeya Tanaka
Hitachi
2
#61
Hiromasa Yamaoka
Hitachi
2
#61
Makoto Miura
Hitachi
2
#61
Hideyuki Kikuchi
Fujitsu Limited
2
#61
Nobuyoshi Mutoh
Hitachi
2
#61
Hiroyoshi Kokaku
Hitachi
2
#61
Toshiya Yuhara
Hitachi Cable
2
#61
Yukiharu Ohga
Hitachi
2
#61
Yasuo Koseki
Hitachi
2
#61
Akira Osaka
Hitachi
2
#61
Mitsuo Yanagi
Hitachi
2
#61
Hideki Kurosaki
Hitachi
2
#61
Shiro Nonaka
Hitachi
2
#61
Toshitaka Yamamoto
Hitachi
2
#61
Yoko Wakui
Hitachi
2
#61
Shigeru Ohno
Fujitsu Limited
2
#61
Tatsuya Kumagai
Hitachi Cable
2
#61
Soshiro Kuzunuki
Hitachi
2
#61
Shuji Eguchi
Hitachi
2
#61
Kenichi Gomi
Hitachi
2
#61
Jun'ya Kaneda
—
2
#61
Atsushi Kanke
Hitachi
2
#61
Tsuneaki Kawanishi
Hitachi
2
#61
Yasushi Kurata
Hitachi Chemical Company
2
#61
Ichiro Harashima
Hitachi
2
#61
Masatomo Ohno
Hitachi
2
#61
Norito Watanabe
Hitachi
2
#61
Shigeyoshi Tanaka
Fujitsu Limited
2
#61
Masao Tachikura
NTT
2
#61
Masayuki Tanji
Hitachi
2
#61
Kousaku Shimizu
Nec
2
#61
Naofumi Tada
Hitachi
2
#61
Shigeo Oda
Sintokogio
2
#61
Matsuo Amano
Hitachi
2
#61
Goro Daimon
Hitachi
2
#61
Yoshiyuki Mukoyama
Hitachi Chemical Company
2
#61
Masaki Murashita
Hitachi
2
#61
Kenichi Natsui
Hitachi
2
#61
Masahiro Komachiya
Hitachi
2
#61
Tadaaki Bandoh
Hitachi
2
« Prev
1
2
3
4
Next »