Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D308972 | Television receiving antenna | Yutaka Aizawa, Kazuhiko Tamura | 1990-07-03 |
| 4864632 | Indoor wiring system for VHF/UHF signal lines | Yoichi Akashi, Kazunori Sekiuchi, Toshio Nagakura, Akira Kobayashi | 1989-09-05 |
| D295517 | Television receiving antenna | Yutaka Aizawa | 1988-05-03 |