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
2024
37 patents · 30 inventors
Ranked
#3,857
of 44,998 cities
Top 9%
Showing 1–30 of 30 inventors
Rank
Inventor
Primary Company
Patents
1
Masahiro Kurokawa
Mitsubishi Gas Chemical Company
2
1
Hitoshi Shirashima
Alpine Electronics
2
1
Yusuke Shiota
Nippon Shokubai Co.
2
1
Yusuke Hirano
Tungaloy
2
1
Takao Katagiri
Tungaloy
2
1
Cangyu Fan
Tungaloy
2
1
Issei Hori
Tungaloy
2
#8
Yoshinori FUJINO
Asahi Kasei Kabushiki Kaisha
1
#8
Takaaki Nakamura
Mitsubishi Electric
1
#8
Tomoaki NOGUCHI
Mitsubishi Electric
1
#8
Takahiro Shinohara
Nec
1
#8
Kenshi Takahashi
Mitsubishi Materials
1
#8
Masatoshi Hino
Hitachi
1
#8
Takafumi Kurimoto
Alpine Electronics
1
#8
Shuichi Nagaoka
Alps Electric Co.
1
#8
Keizo Watanabe
Fujitsu Limited
1
#8
Ryuichi Saji
Tungaloy
1
#8
Yosuke Tate
Alpine Electronics
1
#8
Yutaka Tomizawa
Toyo System Co.
1
#8
Shoichiro Hayashi
Kureha Kagaku Kogyo
1
#8
Tatsuki Nakamura
Alpine Electronics
1
#8
Tomoki OTSUKA
Alpine Electronics
1
#8
Takumi Katsurao
Kureha
1
#8
Yasuhiro Kawasaki
Alpine Electronics
1
#8
Tsukasa Shirochi
Tungaloy
1
#8
Shigeo Aoyagi
Canon
1
#8
Yasutake SASAKI
Tungaloy
1
#8
Osamu Matsumoto
Mitsubishi Electric
1
#8
Shunsuke MIYAZAWA
Tungaloy
1
#8
Koji Konno
Kureha Kagaku Kogyo
1