Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6228339 | Process for producing hydroxyapatite fibers | Yoshio Ota, Toshihiro Kasuga, Yoshihiro Abe | 2001-05-08 |
| 4857291 | Process of producing plate-shaped calcium carbonate particles | Yoshio Ota, Norifumi Goto, Iwao Motoyama, Kunio Nomura | 1989-08-15 |
| 4824654 | Process of producing needle-shaped calcium carbonate particles | Yoshio Ota, Norifumi Goto, Iwao Motoyama, Kunio Nomura | 1989-04-25 |