Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11462927 | Method, rated voltage adjusting device, and electric storage device | Fumiaki Nakao | 2022-10-04 |
| 7072191 | Switching power source circuit for independent per cycle control of ON/OFF time ratio | Fumiaki Nakao, Tetsuya Suzuki, Yasuo Yamashita | 2006-07-04 |
| 4197434 | Telephone exchange apparatus | Mituo Inamasu, Yoshio Sakata, Hiroshi Yoshikawa, Satoshi Matsumoto, Akihiro Kawakami +2 more | 1980-04-08 |