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
SK
Showa Denko K.K.
Rank (2005):
#273
of 17,328
Top 2%
148 inventors
57
Patents 2005
Top Inventors at Showa Denko K.K.
2005
Showing 1–50 of 148 inventors
Rank
Name
Patents
1
Kazumi Naito
7
2
Hiroshi Uchida
4
2
Naohisa Higashiyama
4
#4
Akira Sakawaki
3
#4
Hiroshi Sakai
3
#4
Kenji Shimizu
3
#4
Ryuji Monden
3
#4
Soichi Oikawa
3
#4
Takashi Hikosaka
3
#4
Takashi Udagawa
3
#11
Akira Kasahara
2
#11
Atsushi Sakai
2
#11
Hitoshi Atobe
2
#11
Hirofumi Horiuchi
2
#11
Isao Kabe
2
#11
Katsuhiko Yamazaki
2
#11
Kohei Morikawa
2
#11
Kouichi Wada
2
#11
Kunio Hirano
2
#11
Masashi Fukuda
2
#11
Osamu Kamoshida
2
#11
Ryuji Yamamoto
2
#11
Shigeru Yanagimoto
2
#11
Taichi Okano
2
#11
Toshio Morita
2
#11
Tomoo Uchida
2
#11
Tsuneo Tajima
2
#11
Yoshihiko Seno
2
#11
Yuji Furuta
2
#11
Yuseki Suyama
2
#31
Akira Koyama
1
#31
Akira Shibuya
1
#31
Akihiko Shirakawa
1
#31
David Djulianto Djayaprawira
1
#31
Eiji Kanbara
1
#31
Eiji Komazawa
1
#31
Etsuko Kadowaki
1
#31
Futoshi Nakamura
1
#31
Fumiyoshi Ono
1
#31
Futoshi Watanabe
1
#31
Hitoshi Amita
1
#31
Hiroyuki Hagihara
1
#31
Hitoshi Inoue
1
#31
Hideyuki Kondo
1
#31
Hiroshi Konuma
1
#31
Hisayuki Miki
1
#31
Hiro Mochizuki
1
#31
Hiroshi Nitoh
1
#31
Hideki Ohata
1
#31
Hiromoto Ohno
1
1
2
3
Next »