Issued Patents 1997
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5668883 | Headphone apparatus including an equalizer system having an open loop characteristic with a rising slope outside the cancellation band | Kensaku Abe | 1997-09-16 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5668883 | Headphone apparatus including an equalizer system having an open loop characteristic with a rising slope outside the cancellation band | Kensaku Abe | 1997-09-16 |