Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8945454 | Substrate manufacturing method, substrate manufactured by the substrate manufacturing method and magnetic recording medium using the substrate | Akira Sato | 2015-02-03 |
| 4933863 | Control systems for internal combustion engines | Yukio Masuda | 1990-06-12 |