Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5698971 | Device for detecting the end of battery life, power supply circuit having the device, and a portable machine having the power supply circuit | Yosiaki Suenaga, Hiroyuki Maeda | 1997-12-16 |
| 5696744 | Disk reproducing apparatus having a disk diameter determining function | Naruhiro Okamoto, Hiroyuki Maeda | 1997-12-09 |