Issued Patents 2004
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6739177 | Combustible-gas sensor, diagnostic device for intake-oxygen concentration sensor, and air-fuel ratio control device for internal combustion engines | Takuji Matsubara, Mamoru Yoshioka, Yoshihiko Hyoudo, Takayuki Takeuchi, Naohisa Oyama +1 more | 2004-05-25 |
| 6680522 | Semiconductor device with reduced electrical variation | — | 2004-01-20 |