Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4929903 | Method of and apparatus for assessing insulation conditions | Akira Saigo, Shigenari Maezawa, Tomoaki Kageyama, Keizaburo Ishikura, Akio Sera | 1990-05-29 |
| 4897561 | Apparatus for and method of discriminating signals | Akira Saigo, Shigenari Maezawa, Tomoaki Kageyama, Keizaburo Ishikura, Akio Sera | 1990-01-30 |