NK

Naoki Kokubo

DE Denso: 10 patents #1,243 of 11,792Top 15%
HS Hitachi Automotive Systems: 6 patents #275 of 1,636Top 20%
NS Nippon Soken: 3 patents #406 of 1,540Top 30%
NC Nippondenso Co.: 3 patents #799 of 3,479Top 25%
TO Toyota: 3 patents #8,352 of 26,838Top 35%
HI Hitachi: 2 patents #13,388 of 28,497Top 50%
Overall (All Time): #209,808 of 4,157,543Top 6%
21
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
9523295 Controller of variable valve apparatus of internal combustion engine and variable valve system of internal combustion engine Shinichi Kawada 2016-12-20
9470118 Valve timing control apparatus for internal combustion engine and controller for valve timing control apparatus Shinichi Kawada, Seiji Tsuruta 2016-10-18
8899197 Valve-timing control apparatus for internal combustion engine Shinichi Kawada, Seiji Tsuruta 2014-12-02
8868316 Controller of valve timing control apparatus and valve timing control apparatus of internal combustion engine Shinichi Kawada 2014-10-21
8752515 Variable valve timing control apparatus of internal combustion engine Atsushi Yamanaka, Ryo Tadokoro, Shinichi Kawada 2014-06-17
8452519 Valve timing control apparatus for internal combustion engine Yoshiyuki Kobayashi, Masahiko Watanabe, Takahumi Oowada 2013-05-28
8443772 Electric valve timing control device of internal combustion engine Atsushi Yamanaka, Shinichi Kawada, Michinori Saito, Koichiro Ono, Kazuhiko Takayanagi 2013-05-21
8215833 Diagnostic apparatus for vehicle cooling system Akinori Kouda 2012-07-10
8151627 Knock detection device and knock detection system diagnosis device Satoshi Masuda, Hirohiko Yamada, Shuhei Oe 2012-04-10
8096166 Knock detection device for internal combustion engine Satoshi Masuda, Hirohiko Yamada, Shuhei Oe 2012-01-17
8056396 Knock detection device and knock detection system diagnosis device Satoshi Masuda, Hirohiko Yamada, Shuhei Oe 2011-11-15
7912599 Internal combustion engine control apparatus and method Akira Eiraku 2011-03-22
7827948 Variable valve timing control apparatus of internal combustion engine Yoshiyuki Kobayashi, Masahiko Watanabe 2010-11-09
7748216 Internal combustion engine Akira Eiraku 2010-07-06
7197916 Misfire detector using linear detection of crankshaft angular speed Koichiro Matsumoto, Eiji Kogiso, Takashi Kawashima 2007-04-03
7133766 Engine combustion state detection device 2006-11-07
6688286 Knock control apparatus for engine Hirohiko Yamada, Hideki Yukumoto, Hideyuki Maeji 2004-02-10
6520149 Knock control apparatus and method for engines Hirohiko Yamada, Kenji Kasashima 2003-02-18
5604304 Engine cycle timing and synchronization based on crankshaft angle measurements Koji Sakakibara, Koichi Kamabora, Kenichi Nagase 1997-02-18
5494016 Ignition timing control apparatus for an internal combustion engine Hiroshi Okumura, Koji Sakakibara 1996-02-27
5329904 Engine control apparatus for discriminating cylinders Koji Sakakibara, Hiroshi Haraguchi 1994-07-19