Issued Patents 1989
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4874034 | Refractory unit for a heat regenerator | Kimio Hirata | 1989-10-17 |
| 4850004 | Method and system for acquiring computerized tomogram data | Yasuo Nobuta | 1989-07-18 |
| 4838116 | Crank | Tadashi Ozaki, Isao Masuda | 1989-06-13 |
| 4833919 | Device for measuring displacement | Koichi Shimizu, Yuji Seki | 1989-05-30 |