Issued Patents All Time
Showing 1–10 of 10 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11858856 | Polycrystalline diamond and method for manufacturing same, scribe tool, scribe wheel, dresser, rotating tool, wire drawing die, cutting tool, electrode, and processing method using polycrystalline diamond | Kazuhiro Ikeda, Katsuko Yamamoto, Hitoshi Sumiya | 2024-01-02 |
| 11427475 | Polycrystalline diamond and method for manufacturing same, scribe tool, scribe wheel, dresser, rotating tool, orifice for water jet, wire drawing die, cutting tool, electrode, and processing method using polycrystalline diamond | Kazuhiro Ikeda, Katsuko Yamamoto, Hitoshi Sumiya | 2022-08-30 |
| 10829379 | Polycrystalline diamond and manufacturing method thereof, scribe tool, scribing wheel, dresser, rotating tool, orifice for water jet, wiredrawing die, cutting tool, and electron emission source | Kazuhiro Ikeda, Katsuko Yamamoto, Hitoshi Sumiya, Takeshi Sato | 2020-11-10 |
| 10562776 | Diamond single crystal, tool, and method for producing diamond single crystal | Katsuko Yamamoto, Hitoshi Sumiya | 2020-02-18 |
| 10519068 | Cubic boron nitride polycrystal, cutting tool, wear-resistant tool, grinding tool, and method of producing cubic boron nitride polycrystal | Yuh Ishida, Katsuko Yamamoto, Hitoshi Sumiya | 2019-12-31 |
| 10421129 | Polycrystalline diamond body, cutting tool, wear-resistant tool, grinding tool, and method for producing polycrystalline diamond body | Yuh Ishida, Katsuko Yamamoto, Hitoshi Sumiya | 2019-09-24 |
| 9878956 | Polycrystalline diamond and manufacturing method thereof, scribe tool, scribing wheel, dresser, rotating tool, orifice for water jet, wiredrawing die, cutting tool, and electron emission source | Kazuhiro Ikeda, Katsuko Yamamoto, Hitoshi Sumiya, Takeshi Sato | 2018-01-30 |
| 9850135 | Polycrystalline diamond and manufacturing method thereof | Kazuhiro Ikeda, Katsuko Yamamoto, Hitoshi Sumiya | 2017-12-26 |
| 9714197 | Polycrystalline diamond and manufacturing method thereof, scribe tool, scribing wheel, dresser, rotating tool, orifice for water jet, wiredrawing die, cutting tool, and electron emission source | Kazuhiro Ikeda, Katsuko Yamamoto, Hitoshi Sumiya, Takeshi Sato | 2017-07-25 |
| 8784767 | Polycrystalline diamond and method of manufacturing the same | Hitoshi Sumiya, Katsuko Yamamoto, Takeshi Sato | 2014-07-22 |