Issued Patents 2019
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10465448 | Drill bit insert and drill bit | Wardoyo AKHMADI EKO, Chihiro SAKURAZAWA | 2019-11-05 |
| 10399153 | Rotary cutting tool including polycrystalline diamond material | Wardoyo AKHMADI EKO, Chihiro SAKURAZAWA, Tadakazu Ohashi | 2019-09-03 |
| 10352104 | Drill bit button insert and drill bit | Wardoyo AKHMADI EKO, Chihiro SAKURAZAWA | 2019-07-16 |
| 10311984 | Shaft sealing structure and reactor coolant pump | Kentarou Saeki, Hidekazu Uehara, Akihiko Umeda, Masaru Sakai, Hiroshi Kuzumi +7 more | 2019-06-04 |