HK

Hiroyasu Koyama

TO Toyota: 2 patents #83 of 791Top 15%
Yamaha Motor: 1 patents #20 of 85Top 25%
Overall (2005): #53,786 of 245,428Top 25%
2
Patents 2005

Issued Patents 2005

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
6966177 Anomaly judgment apparatus for secondary air supply system Kenji Kimura, Shigemasa Hirooka, Takeo Ogiso, Keita Nakanishi 2005-11-22
6923169 Exhaust gas purifying apparatus of internal combustion engine and activation control method for the same Takayuki Demura, Kaoru Ohtsuka 2005-08-02