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
DC
Daiichi Seiyaku Co.
Rank (All Time):
#11753
of 106,127
Top 15%
111 inventors
57
Patents All Time
Top Inventors at Daiichi Seiyaku Co.
All Time
Showing 1–50 of 111 inventors
Rank
Name
Patents
1
Isao Hayakawa
12
2
Shohgo Atarashi
8
3
Shinichiro Ashida
5
#4
Hidemasa Ogawa
4
#4
Sadao Hirota
4
#6
Fumiyoshi Ishikawa
3
#6
Hiroshi Kikuchi
3
#6
Hiroaki Tagawa
3
#6
Hitoshi Yamauchi
3
#6
Masazumi Imamura
3
#6
Munefumi Kanao
3
#6
Munehiro Tomikawa
3
#6
Shuichi Yokohama
3
#6
Sumiro Isoda
3
#6
Tetsuo Shiba
3
#6
Yoshiaki Tanaka
3
#6
Yuichi Yamamura
3
#18
Hiroo Matsumoto
2
#18
Kazuhiro Inoue
2
#18
Kiyoshi Irie
2
#18
Kinya Kameda
2
#18
Kyoko Sakuma
2
#18
Minoru Furukawa
2
#18
Mitsuru Furusawa
2
#18
Osamu Nagase
2
#18
Setsuo Kobayashi
2
#18
Shunzo Aibara
2
#18
Shozo Kotani
2
#18
Susumu Maeda
2
#18
Tamotsu Miwa
2
#18
Toshihiro Fujiwara
2
#18
Tosaku Miki
2
#18
Tsuneo Kusama
2
#18
Tsunehiko Soga
2
#18
Yasushi Abiko
2
#18
Akio Ejima
2
#18
Atsuo Inoue
2
#38
Eiko Mano
1
#38
Hiromi Fujiwara
1
#38
Hiroyuki Fujiwara
1
#38
Hiroshi Korenaga
1
#38
Hidemi Masumura
1
#38
Hideki Miyaji
1
#38
Hirofumi Terasawa
1
#38
Hideaki Tsurumi
1
#38
Ichiro Azuma
1
#38
Junichiro Wakasugi
1
#38
Kazuo Asano
1
#38
Katsumi Imada
1
#38
Katsuichi Sakano
1
1
2
3
Next »