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
Iwata, JP
1989
52 patents · 36 inventors
Ranked
#767
of 20,767 cities
Top 4%
Showing 1–36 of 36 inventors
Rank
Inventor
Primary Company
Patents
1
Takashi Koike
Ntn
5
2
Yoshinori Hayashi
Ricoh Company
4
3
Ryoji Nakahama
Sanshin Industries
3
3
Wataru Fuchigami
Yamaha Motor
3
#5
Hideki Matsuzawa
Fujitsu Limited
2
#5
Satoshi Fujimoto
Komatsu Shisakusho
2
#5
Yasuo Nakao
Nippon Air Brake Co.
2
#5
Toshiyasu Terui
Yamaha Motor
2
#5
Minoru Kawamura
Sanshin Industries
2
#10
Hiromi Nojiri
Ntn
1
#10
Masahiro Saruta
Mitsubishi Electric
1
#10
Haruyasu Fujita
Honda Motor Co.
1
#10
Minoru Ishijima
Ntn
1
#10
Tasuku Sato
Mimaki Engineering Co.
1
#10
Tadao Ito
Enshu Limited
1
#10
Junichi Hirata
Ntn
1
#10
Koichi Izuhara
Hitachi High-Tech Instuments Co.
1
#10
Hiromitsu Watanabe
Yamaha Motor
1
#10
Yasuo Ohno
Nec
1
#10
Makoto Yasui
Ntn
1
#10
Takayuki Yamawaki
Minebea Co.
1
#10
Atsushi Uchiyama
Yamaha Motor
1
#10
Yoshikazu Fukumura
Ntn
1
#10
Ryoji Sawada
Sanshin Industries
1
#10
Shigeo Okumura
Sanshin Industries
1
#10
Youichi Ohnishi
Sumitomo Electric Industries
1
#10
Hiroshi Sakuma
Minebea Co.
1
#10
Yoshikiho Takeuchi
Yamaha Motor
1
#10
Tohru Ohnuki
Minebea Co.
1
#10
Takashi Yoshikura
Minebea Co.
1
#10
Akinori Naito
Nippon Kayaku
1
#10
Masatoshi Ohmi
Yamaha Motor
1
#10
Koichiro Kaji
Yamaha Motor
1
#10
Keizo Nagasawa
Ntn
1
#10
Kunitake Matsushita
Minebea Co.
1
#10
Kenro Adachi
Ntn
1