SY

Shiro Yamaoka

HI Hitachi: 2 patents #899 of 4,225Top 25%
Overall (2003): #42,888 of 273,478Top 20%
2
Patents 2003

Issued Patents 2003

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
6651617 Method of controlling ignition timing of compression ignition engine of premixed mixture type Yoshihiro Sukegawa, Yusuke Kihara 2003-11-25
6651677 Method of controlling ignition timing of compression ignition engine of premixed mixture type Yoshihiro Sukegawa, Yusuke Kihara 2003-11-25