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
Iwaki, JP
2023
44 patents · 31 inventors
Ranked
#3,324
of 43,797 cities
Top 8%
Showing 1–31 of 31 inventors
Rank
Inventor
Primary Company
Patents
1
Ryuichi Saji
Tungaloy
4
2
Yasutake SASAKI
Tungaloy
3
2
Tatsumi Kato
Tungaloy
3
#4
Yuzo Hayashi
Alps Electric Co.
2
#4
Michihiro Sato
Unknown
2
#4
Hikaru SHIROMA
Tungaloy
2
#4
Hiroya SHIKAMA
Tungaloy
2
#4
Yasuhiro Kawasaki
Alpine Electronics
2
#4
Takaaki Nakamura
Mitsubishi Electric
2
#10
Susumu Shinoki
Kunimine Industries Co.
1
#10
Yusuke Hirano
Tungaloy
1
#10
Takao Katagiri
Tungaloy
1
#10
Masahiro Akatsu
Hitachi High-Technologies
1
#10
Osamu Matsumoto
Mitsubishi Electric
1
#10
Tomoya Hamaguchi
Alpine Electronics
1
#10
Masaya Takeuchi
Futaba Industrial Co.
1
#10
Ryo Sukegawa
Alpine Electronics
1
#10
Shigeo Aoyagi
Canon
1
#10
Masao Hayashi
Canon
1
#10
Nobuyuki Kusano
Kureha
1
#10
Yukio Sato
Mitsubishi Electric
1
#10
Kazuo Sakuma
Tessera
1
#10
Takeshi Kurosawa
Alpine Electronics
1
#10
Nobunori KUDO
Alpine Electronics
1
#10
Mitsuo Kamei
Tungaloy
1
#10
Koichi Narita
Alpine Electronics
1
#10
Atsuko Nishimagi
Merck
1
#10
Katsura Mochizuki
Tungaloy
1
#10
Yoshikatsu Watanabe
Fdk
1
#10
Hiroyuki Mochiji
Alpine Electronics
1
#10
Atsutomo Tsuchiya
Kunimine Industries Co.
1