Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4863706 | Process for producing zirconium sols and gels, and process for producing zirconia using the same | Takeo Wada, Hideaki Matsuda | 1989-09-05 |
| 4816239 | Process for producing zirconium sols and gels, and process for producing zirconia using the same | Takeo Wada, Hideaki Matsuda | 1989-03-28 |