Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4641156 | Recording apparatus with double frequency driven liquid crystal shutter | Morio Ohta, Shizuo Tsuchiya, Yoshito Nakano, Seiji Asaumi | 1987-02-03 |
| 4614954 | Recording apparatus | Morio Ohta, Shizuo Tsuchiya, Yoshito Nakano, Seiji Asaumi | 1986-09-30 |