Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4806861 | Method and system for detecting tape defects by transporting a tape in two directions | Kuniharu Kondo, Takeshi Nakatsukasa | 1989-02-21 |
| 4640990 | Telephone answering apparatus having two integrators of different time constants | Hideji Kawade, Hideaki Takahashi, Yoshiyuki Sato | 1987-02-03 |
| 4574320 | Dictating machine having a revising function | — | 1986-03-04 |