Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6287530 | Synthetic resin additive and synthetic resin composition containing particles of porous hydroxyapatite | Mitsunobu Aoyama, Shigeo Takiyama, Shiro Minayoshi | 2001-09-11 |
| 6033780 | Fine particles of petaloid porous hydroxyapatite and process for producing the same | Shigeo Takiyama, Minoru Hanazaki | 2000-03-07 |
| 5976687 | Additive for synthetic resins and a synthetic resin composition | Minoru Hanazaki, Shiro Minayoshi, Shigeo Takiyama, Mitsunobu Aoyama | 1999-11-02 |
| 5844022 | Additive for synthetic resins and synthetic resin compositions | Minoru Hanazaki, Shiro Minayoshi, Shigeo Takiyama, Mitsunobu Aoyama | 1998-12-01 |
| 5494651 | Method for manufacturing monodisperse vaterite type calcium carbonate | Shiro Minayoshi, Naofumi Saito, Minoru Hanazaki, Sakae Kuroda, Masako Takahashi +2 more | 1996-02-27 |
| 5275651 | Monodisperse vaterite type calcium carbonate, its manufacturing method and method of controlling growth of particles and shape thereof | Shiro Minayoshi, Naofumi Saito, Minoru Hanazaki, Sakae Kuroda, Masako Takahashi +2 more | 1994-01-04 |