Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4856574 | Electric blind apparatus | Katsuji Minami, Shinichi Murata, Susumu Tsujimoto, Yukinori Matuzaki, Shogo Yukawa | 1989-08-15 |
| 4664169 | Venetian blind construction | Midori Sagawa | 1987-05-12 |
| 4503900 | Venetian blind construction | Midori Sagawa | 1985-03-12 |
| 4449563 | Counterbalance system for sagging rotating element | Minoru Toda | 1984-05-22 |
| 4435920 | Shutter construction | Minoru Toda | 1984-03-13 |
| 4427048 | Shutter construction | Minoru Toda | 1984-01-24 |
| 4417169 | Photoelectric drive circuit for a piezoelectric bimorph element | Minoru Toda | 1983-11-22 |
| 4399385 | Rotative motor using a triangular piezoelectric element | Minoru Toda | 1983-08-16 |
| 4399386 | Rotative motor using plural arrays of piezoelectric elements | Minoru Toda | 1983-08-16 |
| 4351192 | Fluid flow velocity sensor using a piezoelectric element | Minoru Toda | 1982-09-28 |
| 4339682 | Rotative motor using a piezoelectric element | Minoru Toda | 1982-07-13 |
| 4234245 | Light control device using a bimorph element | Minoru Toda | 1980-11-18 |