Issued Patents 2004
Showing 1–3 of 3 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) | Yoshitaka Honda, Kazue Tanaka, Hiroo Ono, Hiroyuki Takahashi | 2004-07-13 |
| 6761698 | Ultrasonic operation system | Norikiyo Shibata, Mitsumasa Okada, Manabu Ishikawa, Hitoshi Karasawa | 2004-07-13 |
| 6679875 | Medical treatment system | Yoshitaka Honda, Kazue Tanaka, Taro Miyazawa | 2004-01-20 |