Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4321224 | Method for production of spherical molded product containing titanium oxide | Shinkichi Shimizu, Tadao Nishizaki | 1982-03-23 |
| 4293445 | Method for production of molded product containing titanium oxide | Shinkichi Shimizu, Tadao Nishizaki | 1981-10-06 |