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
Denka Seiken Co.
Rank (All Time):
#11134
of 106,127
Top 15%
73 inventors
61
Patents All Time
Top Inventors at Denka Seiken Co.
All Time
Showing 1–50 of 73 inventors
Rank
Name
Patents
1
Yasuki Itoh
13
2
Hiroshi Matsui
9
3
Yoshiaki Hirayama
7
#4
Hiroyuki Kurosawa
6
#4
Shinya Ogasawara
6
#4
Toshinori Sato
6
#7
Kunio Kamata
5
#7
Takashi Miyazawa
5
#7
Akihiko Saito
5
#10
Katsuro Natori
4
#10
Naokazu Takeda
4
#10
Seiya Sato
4
#10
Tatsuo Miyamura
4
#10
Yuki Shinohara
4
#15
Kazuyuki Takizawa
3
#15
Maiko Higuchi
3
#15
Mayumi Kano
3
#15
Motoko Ohta
3
#15
Shuichi Ohara
3
#15
Yasuki Ito
3
#15
Yuhko Hirao
3
#15
Akira Fujiwara
3
#23
Aya Nakagawa
2
#23
Daisuke Kato
2
#23
Hitoshi Chiba
2
#23
Hiromi Ito
2
#23
Hideharu Shimizu
2
#23
Junji Matsuda
2
#23
Katsuhiko Asanuma
2
#23
Kyoko Hamasaki
2
#23
Masanori Hara
2
#23
Masayuki Iizuka
2
#23
Miki Fujimura
2
#23
Michimasa Kishimoto
2
#23
Noriyuki Izutani
2
#23
Osamu Ishikawa
2
#23
Risa Kohiyama
2
#23
Ryo Shida
2
#23
Shuhei Miura
2
#23
Takeshi Watanabe
2
#23
Tetsuro Takeda
2
#23
Yasunori Minakawa
2
#23
Yasuhiko Tomino
2
#23
Yoichi Kumada
2
#45
Hikaru Kai
1
#45
Kazuhiro Akiishi
1
#45
Kazuaki Maeda
1
#45
Kazushige Mizuno
1
#45
Kanenari Ohishi
1
#45
Keiichi Hiramatsu
1
1
2
Next »