Issued Patents 1997
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5682121 | No turn-on pop noise amplifier | Toyojiro Naokawa | 1997-10-28 |
| 5642076 | No turn-on pop noise amplifier | Toyojiro Naokawa | 1997-06-24 |
| 5631415 | Air flow rate measuring device | Shinya Igarashi, Chihiro Kobayashi, Mitsukuni Tsutsui, Yukio Kato | 1997-05-20 |