Issued Patents 2023
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11759975 | Ultrasonic resonator support structure and ultrasonic vibration machining apparatus | Keiichi Yotsumoto, Naoki Kubo, Hironobu Matsuyama | 2023-09-19 |
| 11697161 | Fastening structure of ultrasonic resonator and ultrasonic machining device | Keiichi Yotsumoto, Hironobu Matsuyama | 2023-07-11 |