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
Chikusei, JP
2003
20 patents · 18 inventors
Ranked
#3,651
of 30,730 cities
Top 15%
Showing 1–18 of 18 inventors
Rank
Inventor
Primary Company
Patents
1
Michitoshi Arata
Hitachi Chemical Company
2
1
Masao Kanno
Sakata Seed
2
3
Koji Tahara
Hitachi Construction Machinery Co.
1
3
Yoshiyuki Tsuru
Hitachi Chemical Company
1
3
Itsuo Watanabe
Hitachi Chemical Company
1
3
Shigetada Motohashi
Nippon Denkai
1
3
Teiichi Inada
Hitachi Chemical Company
1
3
Yasuyuki Mizuno
Hitachi Chemical Company
1
3
Masahisa Ose
Hitachi Chemical Company
1
3
Takao Sugawara
Fujitsu Limited
1
3
Yasushi Kumashiro
Hitachi Chemical Company
1
3
Yoshiaki Tsubomatsu
Hitachi Chemical Company
1
3
Atsushi Kuwano
Hitachi Chemical Company
1
3
Hiroyuki Kuriya
Hitachi Chemical Company
1
3
Takayuki Senda
Hitachi Chemical Company
1
3
Masashi Amakata
Nippon Denkai
1
3
Norihiro Nishida
Sumitomo Metal Industries
1
3
Shigeo Sase
Hitachi Chemical Company
1