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
PC
Pentax Ricoh Imaging Company
Rank (All Time):
#5937
of 106,127
Top 6%
74 inventors
123
Patents All Time
Top Inventors at Pentax Ricoh Imaging Company
All Time
Showing 1–50 of 74 inventors
Rank
Name
Patents
1
Hiroyasu Uehara
9
1
Yukio Uenaka
9
3
Teppei Okamoto
8
#4
Kazuhiro Yamada
6
#4
Masakazu Saori
6
#4
Yasuhiro Yamamoto
6
#7
Hiroyuki Nakayama
5
#7
Hiroyuki Tanaka
5
#7
Makoto Ohta
5
#7
Masayuki Kamimura
5
#7
Shigenori Fujio
5
#7
Toshiaki Yamada
5
#13
Hirokazu Maeda
4
#13
Koji Kato
4
#13
Mineta SUZUKI
4
#13
Naoto Kawanami
4
#13
Yuichi Kurosawa
4
#18
Kazunori Takahashi
3
#18
Koichi Sato
3
#18
Makoto Iikawa
3
#18
Masayuki Misawa
3
#18
Naoto Asakura
3
#18
Takashi Enomoto
3
#18
Takanobu Shiokawa
3
#18
Tetsuaki Kato
3
#18
Tomohiko Kanzaki
3
#27
Ichiro IMAEI
2
#27
Kazuhiro Matsumoto
2
#27
Kazuo Sugitani
2
#27
Koichi Ishibashi
2
#27
Kosei Kosako
2
#27
Naoki Koshikawa
2
#27
Naoto Nakahara
2
#27
Norio Numako
2
#27
Saki SHIMIZU
2
#27
Shigeru Iwamoto
2
#27
Yoshitaka Kimura
2
#27
Yoshinori Ono
2
#27
Yutaka Ohsawa
2
#27
Yutaka Takakubo
2
#41
Ayako Maruta
1
#41
Hiroaki Imai
1
#41
Hiroyuki Sekine
1
#41
Hiroaki Suzuki
1
#41
Hidenori Takushima
1
#41
Hirotaka Ueno
1
#41
Hideki Yamaguchi
1
#41
Junichi Fujisaki
1
#41
Junki Tsujiyama
1
#41
Kazuhiro Akiyama
1
1
2
Next »