Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4872154 | Method for recording indicia for indicating presence or absence of error in medium after error checking and apparatus therefor | Wataru Sakagami | 1989-10-03 |
| 4850187 | Gas turbine having components composed of heat resistant steel | Masao Siga, Yutaka Fukui, Mitsuo Kuriyama, Soichi Kurosawa, Nobuyuki Iizuka +4 more | 1989-07-25 |