Issued Patents 1989
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4870291 | Splice inspection method and apparatus using light inclined at a prescribed angle | Youichi Hayashi, Masaaki Sakaguchi | 1989-09-26 |
| 4864122 | Joint inspection apparatus for determining the size of a gap | Sakaguchi Masaaki | 1989-09-05 |
| 4842210 | Method and device for winding magnetic tape using magnetic alignment | Masaaki Sakaguchi | 1989-06-27 |
| 4838496 | Magnetic tape loading method and apparatus | Masaaki Sakaguchi | 1989-06-13 |