Issued Patents 2004
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6761690 | 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 | 2004-07-13 |
| 6679875 | Medical treatment system | Yoshitaka Honda, Tomohisa Sakurai, Taro Miyazawa | 2004-01-20 |