Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4725500 | Sizing compositions and yarns sized therewith | Kiyoshi Yanai | 1988-02-16 |
| 4285006 | Ghost cancellation circuit system | Koichiro Kurahashi, Yoshiki Mizutani | 1981-08-18 |