Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6415647 | Compact structure of gas sensor and production method thereof | Hirokazu Yamada, Takashi Kojima, Isao Watanabe | 2002-07-09 |
| 4639712 | Sheathed heater | Akihiro Kobayashi, Shunzo Yamaguchi, Kiyomi Kobayashi | 1987-01-27 |