Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4773089 | Telephone line-switching device | Toshihisa Hirata, Kengo Shibuya, Akira Niinuma, Hidenori Nagai | 1988-09-20 |
| 4742186 | Switch device with interlocking slide | — | 1988-05-03 |
| 4700586 | Mechanism for preventing simultaneous locking of multi-column switches | — | 1987-10-20 |
| 4701580 | Simultaneous inter-row locking inhibiting mechanism for a multi-row interlocking switch device | — | 1987-10-20 |
| 4668844 | Switch device with pivoted interlock plate | — | 1987-05-26 |