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
Kashiwara, JP
All Time
991 patents · 221 inventors
Ranked
#3,713
of 111,555 cities
Top 4%
Showing 51–100 of 221 inventors
Rank
Inventor
Primary Company
Patents
#44
Toshiya Kitagawa
Omron
6
#52
Taisuke Tsujimoto
Denso
5
#52
Kazushige Ootsuka
Jtekt
5
#52
Takafumi Uemoto
Jtekt
5
#52
Taizou Wakayama
Jtekt
5
#52
Kazuyoshi Matsuoka
Osaka Organic Chemical Industry Co.
5
#52
Atsuhiko Ohta
Koyo Seiko Co.
5
#52
Kazuyoshi Fukuhara
Daifuku Co.
5
#52
Tomomasa Kubo
Koyo Seiko Co.
5
#60
Hisato Nishisaka
Jtekt
4
#60
Hidetoshi Koyanagi
Air-Paq
4
#60
Yasuji Noritou
Koyo Seiko Co.
4
#60
Akihiro TAKAZATO
Jtekt
4
#60
Emiko KAWAMUKAI
Saraya Co.
4
#60
Mitsuko Kitanohara
Riso Kagaku
4
#60
Shunzo Kawasaki
Teijin Limited
4
#60
Kousuke Yamanaka
Koyo Seiko Co.
4
#60
Satoshi Teramura
Sharp Kabushiki Kaisha
4
#60
Hidetaka Otsuki
Jtekt
4
#60
Yasutoshi Masuda
Yamato Scale Co.
4
#60
Masaru Umemoto
Tsubakimoto Chain
4
#60
Katsunori Otsuka
Jtekt
4
#60
Masahiro Oita
Sumitomo Electric Industries
4
#60
Hiroyuki Shigemura
Dai Nippon Printing Co.
4
#75
Ryousuke Imai
Jtekt
3
#75
Taro Furuta
Saraya Co.
3
#75
Masatsugu Takarabe
Jtekt
3
#75
Michiaki Araki
Saraya Co.
3
#75
Shingo Takayama
Jtekt
3
#75
Norio Hosomi
Jtekt
3
#75
Changxin Yu
Jtekt
3
#75
Kazuo Kadotani
—
3
#75
Tomomasa Machida
Koyo Seiko Co.
3
#75
Michio Kobori
Shizuoka Prefecture
3
#75
Tsugio Matsushita
Koyo Seiko Co.
3
#75
Masashi Kuze
Koyo Seiko Co.
3
#75
Motonori Nakao
Jtekt
3
#75
Toshio Tamai
Jtekt
3
#75
Hiroji Maegawa
Takatori
3
#75
Yosuke Takaba
Tamagawa Seiki Co.
3
#75
Masahiro Kiji
Jtekt
3
#75
Kenta Hasama
Jtekt
3
#75
Mizuyuki Ryu
Saraya Co.
3
#75
Ryoichiro KOTANI
Jtekt
3
#75
Taisaku Hashimoto
Koyo Seiko Co.
3
#75
So Saito
Jtekt
3
#75
Yasuyuki Kita
Osaka University
3
#75
Yutaro ISHIMOTO
Jtekt
3
#99
Eiko Iwakoshi
Suntory Holdings Limited
2
#99
Koshiro Yamakawa
Koyo Seiko Co.
2
« Prev
1
2
3
4
Next »