Issued Patents 2022
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11453589 | Method of producing boron nitride polycrystal, boron nitride polycrystal, cutting tool, wear-resisting tool, and grinding tool | Hitoshi Sumiya | 2022-09-27 |
| 11383306 | Method for producing polycrystalline diamond body, polycrystalline diamond body, cutting tool, wear-resistance tool and grinding tool | Hitoshi Sumiya | 2022-07-12 |
| 11319255 | Composite sintered material and tool using same | Satoru Kukino, Michiko Matsukawa | 2022-05-03 |