Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4866605 | System function simulation method and apparatus therefor using Petri net symbols | Toshihiko Nakano, Kenroku Nogi, Kiyomi Mori | 1989-09-12 |
| 4854843 | Apparatus for producing cast products | Satoru Takeda, Hiroshige Kohno | 1989-08-08 |