TS

Tatsumasa Sugiyama

TO Toyota: 8 patents #3,629 of 26,838Top 15%
DE Denso: 2 patents #4,986 of 11,792Top 45%
TI Toyota Industries: 1 patents #904 of 1,610Top 60%
Overall (All Time): #583,106 of 4,157,543Top 15%
9
Patents All Time

Issued Patents All Time

Showing 1–9 of 9 patents

Patent #TitleCo-InventorsDate
7568337 Device for detecting state of thermal degradation of exhaust purifying catalyst Takahiro Uchida, Atsushi Morikawa 2009-08-04
7347043 Exhaust gas purifier for internal combustion engine Jun Tahara 2008-03-25
7320214 Exhaust gas purifier for internal combustion engine Shogo Kanazawa, Yasuhiko Otsubo 2008-01-22
7299625 Exhaust purifying apparatus and exhaust purifying method for internal combustion engine Takahiro Uchida 2007-11-27
7143756 Control device and control method for internal combustion engine Daisuke Kojima, Masumi Kinugawa, Kiyonori Sekiguti, Yasuhiro Kariya 2006-12-05
6763799 Internal combustion engine and control method of the same Takekazu Ito, Hiroki Matsuoka, Yasuhiro Ohtsubo, Taro Aoyama, Jun Tahara +4 more 2004-07-20
6668805 Accumulator fuel injection apparatus Akira Kato 2003-12-30
5425344 Diagnostic apparatus for evaporative fuel purge system Takayuki Otsuka, Katsuhiko Teraoka 1995-06-20
5295472 Apparatus for detecting malfunction in evaporated fuel purge system used in internal combustion engine Takayuki Otsuka, Kouichi Osawa, Katsuhiko Teraoka, Nobuyuki Kobayashi, Koji Okawa 1994-03-22