Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D534526 | Microphone | Yasushi Akita | 2007-01-02 |
| 4573552 | Safety device for protecting fall of a lift | — | 1986-03-04 |
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D534526 | Microphone | Yasushi Akita | 2007-01-02 |
| 4573552 | Safety device for protecting fall of a lift | — | 1986-03-04 |