Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4836016 | Method and apparatus for detecting abnormal state in pulse train generating sensor | Yoshizo Ito | 1989-06-06 |
| 4806845 | System for measuring and generating electric noise | Takashi Ogawa | 1989-02-21 |