Issued Patents 2003
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6569109 | Ultrasonic operation apparatus for performing follow-up control of resonance frequency drive of ultrasonic oscillator by digital PLL system using DDS (direct digital synthesizer) | Tomohisa Sakurai, Yoshitaka Honda, Hiroo Ono, Hiroyuki Takahashi | 2003-05-27 |