Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4831483 | Abnormality detection alarm circuit for output circuit | Hideharu Tezuka | 1989-05-16 |
| 4827158 | Output circuit used in an output stage where large current and large output amplitude are required | — | 1989-05-02 |