Issued Patents 2002
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6500322 | Gas sensor | Shoji Akatsuka, Kouji Matsuo, Satoshi Ishikawa | 2002-12-31 |
| 6446489 | Gas sensor and method of producing the same | Satoshi Ishikawa | 2002-09-10 |
| 6383353 | Oxygen sensor | Shoji Akatsuka, Satoshi Ishikawa | 2002-05-07 |