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
Mitaka, JP
2017
90 patents · 47 inventors
Ranked
#1,991
of 41,746 cities
Top 5%
Showing 1–47 of 47 inventors
Rank
Inventor
Primary Company
Patents
1
Kazumasa Ikushima
Musashi Engineering
7
2
Soichiro KOSHIKA
Olympus
6
3
Yutaka Horie
Kabushiki Kaisha Toshiba
5
3
Masaru Murashita
Hitachi Aloka Medical
5
3
Noboru Ueda
Konica Minolta
5
#6
Keito Fukushima
Olympus
4
#6
Masaru Ichimura
Hitachi
4
#8
Masaji Ozaki
Jamco
3
#8
Naoyuki Naruse
Hitachi
3
#10
Jumpei Tajima
Kabushiki Kaisha Toshiba
2
#10
Yoshihisa Tsutsui
Jamco
2
#10
Hiromi Yatsuda
Japan Radio Co.
2
#10
Sanae Ootake
Jamco
2
#10
Mari Konishi
Konica Minolta
2
#10
Nozomu Tagami
Jamco
2
#10
Yuuichi Nishijima
Konica Minolta
2
#10
Masafumi Oikawa
Nikon
2
#10
Norihide Takeyama
Nipro
2
#10
Kenji Nojiri
Jamco
2
#20
Hidetoshi Arii
Hitachi
1
#20
Kenjiro Naemura
Kabushiki Kaisha Toshiba
1
#20
Toshikazu Tanino
Hitachi
1
#20
Masa Yamamoto
Hitachi Medical
1
#20
Jing-Wen Tsao
Hitachi Aloka Medical
1
#20
Kounosuke Hayashi
Hitachi
1
#20
Takayuki Hitosugi
Canon
1
#20
Norihiro Tomimatsu
Kabushiki Kaisha Toshiba
1
#20
Kazuhisa Kishimoto
Konica Minolta
1
#20
Tanemasa Harada
Kabushiki Kaisha Toshiba
1
#20
Naoyuki Tsuruoka
Texas Instruments
1
#20
Teruhiko Uno
Kabushiki Kaisha Toshiba
1
#20
Taisaku Kogawa
Topcon
1
#20
Masashi MAMINO
Konica Minolta
1
#20
Takaaki Ishigure
Asahi Glass Co.
1
#20
Naohiro Kageyama
Minolta
1
#20
Takayuki Doui
Konica Minolta
1
#20
Futoshi Ogata
Hitachi
1
#20
Tomoko Takenaka
Hitachi
1
#20
Takaya Uno
Hitachi
1
#20
Mitsuo Ono
Kyocera
1
#20
Takashi Kogai
Japan Radio Co.
1
#20
Toshimitsu Inose
Hitachi
1
#20
Tatsuya Takagi
Konica Minolta
1
#20
Yosuke Mizutani
Honda Motor Co.
1
#20
Tomoaki Chono
Hitachi Medical
1
#20
Takuya Yamamura
Mitsubishi Motors
1
#20
Kazuaki Yamaji
Yakult Honsha
1