Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11724321 | Hole drilling machine and method for drilling oval hole and inner-diameter-changing hole by means of hole drilling machine | Munehiro Murakami, Toshio Suzuki, Kazushige Morozumi, Tatsunori Sato, Yuya Masuda +1 more | 2023-08-15 |
| 11154939 | Hole drilling machine and method for drilling oval hole and inner-diameter-changing hole by means of hole drilling machine | Munehiro Murakami, Toshio Suzuki, Kazushige Morozumi, Tatsunori Sato, Yuya Masuda +1 more | 2021-10-26 |
| 8269397 | Vibratory driving device | Tomoyuki Yuasa | 2012-09-18 |