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
L(
Lederle (Japan)
Rank (All Time):
#22151
of 106,127
Top 25%
49 inventors
28
Patents All Time
Top Inventors at Lederle (Japan)
All Time
Rank
Name
Patents
1
Toshio Kumagai
8
2
Satoshi Tamai
7
3
Takao Abe
6
#4
Yunosuke Nagase
6
#5
Yoshimitsu Nagao
5
#6
Chisato Sato
4
#7
Hiroshi Matsunaga
4
#8
Masami Ohsawa
4
#9
Muneo Hikida
4
#10
Yoshisuke Machida
4
#11
Ikuo Kishi
3
#12
Takeshi Isoda
3
#13
Toru Hirano
3
#14
Ado Mihira
3
#15
Akio Tanaka
3
#16
Kazuhiko Hayashi
2
#17
Kenji Hasegawa
2
#18
Masanori Sugita
2
#19
Osamu Ogawa
2
#20
Sakae Aoyagi
2
#21
Takuya Kohno
2
#22
Yasuhiro Kuramoto
2
#23
Yoshiyuki Tahara
2
#24
Daiei Tunemoto
1
#25
Hisashi Shimidzu
1
#26
Hiroshi Takei
1
#27
Hideo Yoshida
1
#28
Kazuo Tsukamura
1
#29
Kenzo Naito
1
#30
Keiichiro Ohta
1
#31
Kiyosi Kondo
1
#32
Koichi Nakashima
1
#33
Kunikazu Sakai
1
#34
Masaaki Kurihara
1
#35
Masako Ota
1
#36
Mitsuharu Fujii
1
#37
Mitsuo Mizumura
1
#38
Nakashima Nakashima
1
#39
Noriyuki Sasaki
1
#40
Takaaki Hayashi
1
#41
Takeo Kobori
1
#42
Toru Eguchi
1
#43
Tohru Eguchi
1
#44
Toshi Kumagai
1
#45
Tsuneyo Kaneko
1
#46
Yutaka Mizushima
1
#47
Yukihiro Tada
1
#48
Ota Masako
1
#49
Akihito Oji
1