Issued Patents 2002
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6423944 | Ceramic heater and glow plug with reference zone and condensed zone of ceramics and conductive particles dispersed therein | Masahiro Konishi | 2002-07-23 |
| 6359261 | Silicon nitride sintered body, process for producing the same, ceramic heater employing the silicon nitride sintered body and glow plug containing the ceramic heater | Masahiro Konishi | 2002-03-19 |