Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5070588 | Process for producing ceramic honeycomb structure extrusion dies | Yoshihito Shiji | 1991-12-10 |
| 4578879 | Fluidizing apparatus | Takeshi Yokoyama, Haruyuki Koda, Matsunao Maeda, Keiji Kobayashi, Masafumi Aoba | 1986-04-01 |