Issued Patents 2003
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6595844 | Outer-diameter blade, inner-diameter blade, core drill and processing machines using same ones | Toru Mizuno, Ikuo Hattori, Akihiko Sugama, Yoshiaki Ise | 2003-07-22 |
| 6595845 | Outer-diameter blade, inner-diameter blade, core drill and processing machines using same ones | Toru Mizuno, Ikuo Hattori, Akihiko Sugama, Yoshiaki Ise | 2003-07-22 |