Issued Patents 1989
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4890099 | Signal analyzer having partially scrolling function for display screen | — | 1989-12-26 |
| 4839582 | Signal analyzer apparatus with automatic frequency measuring function | Seiryo Fukaya, Narushi Amamoto | 1989-06-13 |
| 4839583 | Signal analyzer apparatus with analog partial sweep function | Seiryo Fukaya | 1989-06-13 |
| 4801873 | Waveform measuring apparatus with marker zone displaying function | — | 1989-01-31 |