Issued Patents 2003
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6652723 | Hydrogen gas sensor | Norobu Ishida, Takafumi Oshima, Ryuji Inoue, Tomonori Kondo | 2003-11-25 |
| 6635162 | Gas sensor | Satoshi Sugaya, Noboru Ishida, Takafumi Oshima | 2003-10-21 |