Patent Leaderboard
USPTO Patent Rankings
Data through Dec 31, 2025
Search
Companies
Inventors
Cities
States
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
Home
›
Companies
›
The Ritsumeikan Trust
TT
The Ritsumeikan Trust
— 59 Patents
Rank
(All Time):
#11,470
of
106,120
Top 15%
141
inventors
59
Patents All Time
Top Inventors at The Ritsumeikan Trust
All Time
Showing
1–50
of
141
inventors
Rank
Name
Patents
1
Takakuni Douseki
10
2
Ami Tanaka
9
3
Fumiyasu Utsunomiya
8
#4
Shunsuke Okura
7
#5
Takeshi Fujino
6
#6
Masayoshi Shirahata
5
#6
Mitsuru Shiozaki
5
#6
Takaya Kubota
5
#9
Isao Takayanagi
3
#9
Katsuya Kanaoka
3
#9
Masaaki Makikawa
3
#12
Chisa Inaka
2
#12
Hideki OWADA
2
#12
Kazunori Sanada
2
#12
Kazuhito Takenaka
2
#12
Ken MIYAUCHI
2
#12
Kiyoka TAKAGI
2
#12
Masato Yamaguchi
2
#12
Naoki Matsuda
2
#12
Naoki Mori
2
#12
Sangman Han
2
#12
Sang-Ho Hyon
2
#12
Sadao Kawamura
2
#12
Satoshi Konishi
2
#12
Shiyuya IMOTO
2
#12
Sota KAMO
2
#12
Takao Kawabata
2
#12
Tadahiro TANIGUCHI
2
#12
Yasufumi Nakanishi
2
#12
Yen-Wei Chen
2
#12
Yoshitaka KAWABATA
2
#12
Yoshinobu Yoshihara
2
#12
Yusuke SAKAUE
2
#34
Ai Otani
1
#34
Akinori Fujita
1
#34
Akio Kanemori
1
#34
Akimasa Tamano
1
#34
Chika Sokawa
1
#34
Chisato Tawara
1
#34
Dongdong Wang
1
#34
Etsuhiro Mori
1
#34
Guifang Duan
1
#34
Harutsugu Mizui
1
#34
Hiromatsu Aoki
1
#34
Hiroyuki Ishimori
1
#34
Hiroshi Masunaga
1
#34
Hideaki Misawa
1
#34
Hiroaki Mochizuki
1
#34
Hiroaki Nakanishi
1
#34
Hiroki Nishijima
1
1
2
3
Next »
Related Companies
Cavendish Kinetics
59
Asahi Kasei Fibers
59
Endocyte
59
Fuerst Group
59
Raysearch Laboratories Ab
59
Whitmor
59
Truck-Lite Co.
59
Flexenable Limited
59
Fivetech Technology
59