Obitsu; Masamichi
Patent Applications and Registrations
Patent applications and USPTO patent grants for Obitsu; Masamichi.The latest application filed is for "zirconia sol and method for making the same".
- Obitsu; Masamichi - Funabashi JP
- Obitsu; Masamichi - Chiba JP
| Patent | Date |
|---|---|
| Zirconia sol and method for making the same Grant 5,223,176 - Obitsu , et al. June 29, 1 | 1993-06-29 |
| Process for manufacturing fine zirconium oxide powder Grant 4,985,229 - Obitsu , et al. January 15, 1 | 1991-01-15 |
| Method for preventing hardened cementitious material from deteriorating Grant 4,559,241 - Obitsu , et al. December 17, 1 | 1985-12-17 |
| Agent and method for modifying surface layer of cement structures Grant 4,443,496 - Obitsu , et al. April 17, 1 | 1984-04-17 |
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