Issued Patents 2002
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6497783 | Plasma processing apparatus provided with microwave applicator having annular waveguide and processing method | Nobumasa Suzuki, Hirohisa Oda | 2002-12-24 |
| 6411138 | Buzzer drive circuit | Shigeyuki Yamakita, Hirotsugu Matsuura | 2002-06-25 |