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
Chiba, JP
2020
1,296 patents · 683 inventors
Ranked
#237
of 44,107 cities
Top 1%
Showing 101–150 of 683 inventors
Rank
Inventor
Primary Company
Patents
#72
Yohei Kasai
Fujikura
3
#72
Kensuke Matsuoka
IBM
3
#72
Masakazu Sugiura
Seiko Instruments
3
#72
Masaru Midorikawa
Sii Printek
3
#72
Gen Masuda
Nisshinbo Industries
3
#72
Yohei Fukuma
Sony
3
#72
Masayuki Tamaki
Canon
3
#72
Mitsunori Abe
Fujitsu Limited
3
#72
Shuichi Sugita
Konica
3
#72
Naohiro Tomita
Sii Printek
3
#72
Noriko Tsutsumi
Novozymes A/S
3
#72
Riki Fukuhara
Canon
3
#72
Tadakatsu Kuroda
Ablic
3
#72
Atsushi Ichiyanagi
Kikkoman
3
#72
Yasuhiro Yamagata
Mabuchi Motor Co.
3
#72
Shohei Tsuzaki
Canon
3
#72
Takayuki Mino
Sanyo Electric Co.
3
#72
Kazuhiro Miyasa
Canon
3
#72
Reiko Sugihara
Jfe Steel
3
#72
Tomoki Hikichi
Ablic
3
#72
Kiyoto Ito
Hitachi
3
#72
Kazuhiro Ando
Panasonic
3
#72
Shinichi Kanematsu
Canon
3
#72
Fumitaka KONDOU
Jnc
3
#72
Koh Ishigami
Canon
3
#72
Kunihiko Fujiwara
Fujikura
3
#72
Shin Iwasaki
Canon
3
#72
Osamu Ariizumi
Canon
3
#72
Shiro Fukuyama
Novozymes A/S
3
#72
Hideki Yoshikawa
J. Morita Mfg.
3
#72
Haruka Kohri
Fujikura
3
#72
Ryokichi Matsumoto
Fujikura
3
#72
Naoto Watanabe
Canon
3
#72
Hiroaki Mori
Toyota
3
#72
Akito Takegawa
Pearl Musical Instrument
3
#72
Hitoshi Sano
Canon
3
#72
Kazutaka ISHII
Powdertech Co.
3
#138
Hitoshi Shimada
Yamashita Rubber Co.
2
#138
Shinjiro Kato
Pioneer Electronic
2
#138
Katsunori Nishiura
Mitsui Chemicals
2
#138
Takashi NUMATA
Hitachi
2
#138
Toshifumi Hashiba
—
2
#138
Haruhiko Yoshida
Kabushiki Kaisha Toshiba
2
#138
Masayuki Iwata
Fujikura
2
#138
Naoki Ishikawa
Canon
2
#138
Hisashi Hasegawa
Seiko Instruments
2
#138
Yoshitaka Bito
Hitachi
2
#138
Isamu Yoshii
Panasonic
2
#138
Yoshimitsu Yuzawa
Sumitomo Construction Machinery Co.
2
#138
Jyunichi Inagaki
Jnc
2
« Prev
1
2
3
4
5
Next »