Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D333651 | Battery charger for a facsimile transmitter and receiver | Akihide Itou, Isato Murakawa | 1993-03-02 |
| D331753 | Facsimile transmitter and receiver | Akihide Itou, Isato Murakawa | 1992-12-15 |
| D300320 | Telephone attendant console | Toshihiko Watanabe, Kazuo Ikeda | 1989-03-21 |
| D287720 | Printer | — | 1987-01-13 |