Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4864304 | Analog voltage signal comparator circuit | Hiroshi Shigehara | 1989-09-05 |
| 4803461 | R-2R type D/A converter circuit | Akira Yamaguchi | 1989-02-07 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4864304 | Analog voltage signal comparator circuit | Hiroshi Shigehara | 1989-09-05 |
| 4803461 | R-2R type D/A converter circuit | Akira Yamaguchi | 1989-02-07 |