Issued Patents 2002
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6442049 | Power conversion device with power source voltage drop detection unit | Tadamitsu Yoshikawa | 2002-08-27 |
| 6383183 | High frequency treatment apparatus | Naomi Sekino, Yasuhiko Kikuchi, Kazuya Hijii, Masahide Ohyama, Kouji Yamauchi +6 more | 2002-05-07 |