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
Iruma, JP
2004
41 patents · 31 inventors
Ranked
#2,013
of 30,370 cities
Top 7%
Showing 1–31 of 31 inventors
Rank
Inventor
Primary Company
Patents
1
Shinji Imai
Fujifilm
5
2
Yuki Tsukuda
Ykk
3
3
Ai Midorikawa
Olympus Optical Co.
2
3
Yasuhide Ishimori
Teac
2
3
Mitsumasa Kubo
Teac
2
3
Masayoshi Uehata
Mitsubishi Pharma
2
#7
Kazuhito Hotta
Honda Motor Co.
1
#7
Kikuo Iwasaka
Pentax
1
#7
Yoji Maruyama
HGST
1
#7
Toshio Nagasaka
Casio Computer Co.
1
#7
Fuminori Tezuka
Kioritz
1
#7
Hiroomi Watanabe
Teac
1
#7
Takayuki Kotani
Hosokawa Yoko Co.
1
#7
Masahiko Furuno
Tamura
1
#7
Toshiki Oniduka
Iwaki Co.
1
#7
Akira Yokoi
Unknown
1
#7
Genta Maruyama
Senju Pharmaceutical Co.
1
#7
Katsuaki Tamaru
Citizen Watch Co.
1
#7
Kazutaka Nakanami
Tamura
1
#7
Eiichi Takeuchi
Nippon Steel
1
#7
Takayasu Machida
Citizen Watch Co.
1
#7
Masao Negishi
Teac
1
#7
Mitsuru Iwabuchi
Tamura
1
#7
Toshio Fukukawa
Hitachi
1
#7
Hiroyuki Hamamoto
Yaskawa Electric
1
#7
Shinichi Imade
Olympus Optical Co.
1
#7
Shinkichi Murakami
Toa Nenryo Kogyo
1
#7
Masanobu Takahashi
Mitsubishi Electric
1
#7
Masami Yabusaki
Ntt Docomo
1
#7
Kengo Nakayama
Honda Motor Co.
1
#7
Mikiko Arakawa
Pioneer
1