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 (2020):
#710
of 32,488
Top 3%
141 inventors
61
Patents 2020
Top Inventors at Showa Denko K.K.
2020
Showing 1–50 of 141 inventors
Rank
Name
Patents
1
Hisato Shibata
7
1
Lei Zhang
7
1
Takayuki Fukushima
7
1
Takehiro Yamaguchi
7
#5
Tetsuya Kanbe
6
#6
Haruhisa OHASHI
5
#7
Chen Xu
4
#7
Kazuya Niwa
4
#7
Kenzo Hanawa
4
#7
Keizo ISEKI
4
#7
Kunchan Lee
4
#7
Masatoshi Ichikawa
4
#7
Tomoo Shige
4
#14
Daisuke YAGYU
3
#14
Gaku Oriji
3
#14
Tatsuo Fujimoto
3
#14
Takuya Imai
3
#14
Yuji Murakami
3
#19
Akira Miyasaka
2
#19
Chika YAMASHITA
2
#19
Daisuke Muto
2
#19
Hiroto Kouka
2
#19
Hiroshi KOYANAGI
2
#19
Hiroshi Uchida
2
#19
Isao Murase
2
#19
Kazuo Furuya
2
#19
Kentarou Takahashi
2
#19
Kiminori SUGIMOTO
2
#19
Kota Hasegawa
2
#19
Koji Kamei
2
#19
Masashi Nakabayashi
2
#19
Motoaki ARAKI
2
#19
Seiji Matsushima
2
#19
Takashi Aigo
2
#19
Takeshi Igarashi
2
#19
Takashi Ohkubo
2
#19
Wataru Ito
2
#19
Yasuhiro Nakagawa
2
#19
Yohei Fujikawa
2
#19
Yoshitaka Ishibashi
2
#19
Yoshishige OKUNO
2
#19
Yuji Umemoto
2
#43
Akimitsu Ishihara
1
#43
Akira Shibuya
1
#43
Akinori Sudoh
1
#43
Akira Uzawa
1
#43
Aoi Nakano
1
#43
Arihiro Mutoh
1
#43
Atsushi Hashimoto
1
#43
Atsushi Matsumura
1
1
2
3
Next »