HH

Hiroshi Hirayama

HI Hitachi: 3 patents #329 of 3,771Top 9%
HC Hitachi Car Engineering Co.: 1 patents #39 of 145Top 30%
Nissan Motor Co.: 1 patents #116 of 485Top 25%
TO Toyota: 1 patents #227 of 840Top 30%
Overall (2004): #15,353 of 270,089Top 6%
4
Patents 2004

Issued Patents 2004

Showing 1–4 of 4 patents

Patent #TitleCo-InventorsDate
6810859 Control system of internal combustion engine with output correcting means of thermal type air flow sensor Yoshihiko Akagi, Takuto Okamoto, Kazuhiko Miya, Hatsuo Nagaishi, Tetsuya Iwasaki 2004-11-02
6806225 Catalyst for exhaust gas purification, process for producing the same, and method of purifying exhaust gas Yasuo Ikeda, Riemi Tanizawa, Sinji Tsuji 2004-10-19
6763429 Method and apparatus for recording and playing back information 2004-07-13
6681742 Air flow measuring device formed integrally with electronically controlled throttle body Shinya Igarashi, Takayuji Itsuji, Yasuo Makie 2004-01-27