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
Koto, JP
2019
57 patents · 31 inventors
Ranked
#3,064
of 43,611 cities
Top 8%
Showing 1–31 of 31 inventors
Rank
Inventor
Primary Company
Patents
1
Hiroyuki Yagi
Ihi
6
2
Naoki Futakuchi
Hitachi
5
2
Tatsuyuki Matsushita
Kabushiki Kaisha Toshiba
5
#4
Ken Okuyama
Hitachi
4
#5
Masato Ishizaki
Ihi
3
#5
Tsutomu Murakami
Canon
3
#5
Masaaki Komatsu
Hitachi
3
#8
Zhaogong Guo
Fujitsu Limited
2
#8
Iwao Waga
Nec Solution Innovators
2
#8
Kiyoto Minamiura
Fujitsu Limited
2
#8
Yohei Hattori
Sumitomo Electric Industries
2
#12
Shigeaki Sakurai
Kabushiki Kaisha Toshiba
1
#12
Yu Horie
Kao
1
#12
Kanako Tsuchida
IBM
1
#12
Yukinori Inamura
Comcast
1
#12
Armand Simon Alymamy Girier
Kabushiki Kaisha Toshiba
1
#12
Yasuyuki Ihara
Nec Solution Innovators
1
#12
Akira Kobiki
Ihi
1
#12
Yoshitaka Adachi
Kabushiki Kaisha Toshiba
1
#12
Tsukasa Kinjo
Fujitsu Limited
1
#12
Kenji Funaki
Maruha Nichiro
1
#12
Kazuya Ueki
Nec Solution Innovators
1
#12
Yasuo Shichitani
—
1
#12
Shingo Yanagimoto
Kabushiki Kaisha Toshiba
1
#12
Kengo IKEDA
Konica Minolta
1
#12
Koichi Inagaki
Ihi
1
#12
Teruyuki Nakamura
Yachiyo Industry Co.
1
#12
Yoshikazu Fujimori
Rohm Co.
1
#12
Hideyuki Miki
Ihi
1
#12
Rintarou Kajiwara
Ihi
1
#12
Yoshimitsu Matsuyama
Ihi
1