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
Ngk Spark Plug Co.
Rank (All Time):
#303
of 106,127
Top 1%
1,594 inventors
2,610
Patents All Time
Top Inventors at Ngk Spark Plug Co.
All Time
Showing 301–350 of 1,594 inventors
Rank
Name
Patents
#254
Yasuhiko Nakagawa
7
#254
Yasuo Okuyama
7
#254
Yasuhiro Sugimoto
7
#254
Yuta Oishi
7
#254
Akio Mizutani
7
#306
Atsushi Kanda
6
#306
Eiji Kodera
6
#306
Eiji Ozeki
6
#306
Hironobu Ishikawa
6
#306
Hideki Kato
6
#306
Hiroshi Matsuzaki
6
#306
Hironori Sato
6
#306
Hiroyuki Takahashi
6
#306
Hideki Uematsu
6
#306
Jun Kurano
6
#306
Kazunaga Higo
6
#306
Katsuhiko Horii
6
#306
Kazuhisa Itakura
6
#306
Kazuhiro Kodama
6
#306
Kazunori Miura
6
#306
Kazushige Obayashi
6
#306
Kazuho Tatematsu
6
#306
Kenichi Kumagai
6
#306
Keita Nakagawa
6
#306
Koji Shiono
6
#306
Kohei Usami
6
#306
Masami Hasegawa
6
#306
Masahiro Iba
6
#306
Masahiko Nishi
6
#306
Masanori Suda
6
#306
Minoru Ando
6
#306
Naomiki Kato
6
#306
Noboru Aoki
6
#306
Nobuhiro Inoue
6
#306
Satoshi Okazaki
6
#306
Seiji Ichiyanagi
6
#306
Seiji Nakano
6
#306
Shigeaki Akao
6
#306
Shinya Awano
6
#306
Shigeru Taga
6
#306
Shunsuke Tsuga
6
#306
Shinichi Yokoi
6
#306
Takaaki Chosokabe
6
#306
Takuya Shimamura
6
#306
Takahisa Ushida
6
#306
Tetsuya Morikawa
6
#306
Tetsuo Suzuki
6
#306
Tomoyuki Igarashi
6
#306
Tomohiro Ishino
6
#306
Toru Iwano
6
« Prev
5
6
7
8
9
Next »