Issued Patents 1989
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4835044 | Ceramic honeycomb structural bodies | Koichi Ikeshima | 1989-05-30 |
| 4810554 | High strength ceramic honeycomb structure | Kouichi Ikeshima | 1989-03-07 |
| 4808065 | Apparatus for changing posture of green extruded body | Akio Enomoto | 1989-02-28 |
| 4798528 | Extruding die structure for plunger molding machine | Hifuo Noiri | 1989-01-17 |