Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date | Approx Value ⓘ |
|---|---|---|---|---|
| 5081672 | Automatic telephone answering apparatus | Akira Matsubara, Hiroshi Nishimura, Yoshitomo Nakano | 1992-01-14 | $530,000 |
| 4421954 | Automatic telephone answering and message recording device | Kouichi Tanaka, Yoshitomo Nakano, Harumi Saita, Akira Nakayama | 1983-12-20 | $464,000 |