Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5682121 | No turn-on pop noise amplifier | Hiroshi Hirayama | 1997-10-28 |
| 5642076 | No turn-on pop noise amplifier | Hiroshi Hirayama | 1997-06-24 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5682121 | No turn-on pop noise amplifier | Hiroshi Hirayama | 1997-10-28 |
| 5642076 | No turn-on pop noise amplifier | Hiroshi Hirayama | 1997-06-24 |