Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5699374 | Solid-state material, method of manufacturing the solid-state material, frequency-converting element, and frequency-measuring instrument incorporating the element, and frequency modulator/amplifier incorporating the element | Kouichi Ichimura, Kazushige Yamamoto | 1997-12-16 |
| 5675532 | Recording medium and recording/reproduction method | Syun Egusa, Kuniyoshi Tanaka, Hiroyuki Hieda, Katsuyuki Naito | 1997-10-07 |