Issued Patents 2021
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11193335 | Polycrystalline diamond sintered material tool excellent in interfacial bonding strength and method of producing same | Wardoyo AKHMADI EKO, Minoru Akaishi | 2021-12-07 |
| 11060610 | Multistage shaft sealing apparatus and rotary machine | Takanobu Otani, Hiroshi Kuzumi, Hiroyuki Tokumasu, Yasuhiro Ikeda, Hitoshi Ito +2 more | 2021-07-13 |
| 10900293 | Drilling tip, drilling tool, and method of manufacturing drilling tip | Wardoyo AKHMADI EKO, Masahiro Yano, Yuki AKAHOSHI, Yuichiro Takeuchi | 2021-01-26 |