Okimoto; Tomoyuki
Patent Applications and Registrations
Patent applications and USPTO patent grants for Okimoto; Tomoyuki.The latest application filed is for "multi-color heat sensitive recording material".
- Okimoto; Tomoyuki - Nishinomiya JP
- Okimoto; Tomoyuki - Amagasaki JP
- Okimoto; Tomoyuki - Hyogo JP
- Okimoto; Tomoyuki - Takarazuka JP
| Patent | Date |
|---|---|
| Multi-color heat sensitive recording material Grant 4,906,604 - Okamoto , et al. March 6, 1 | 1990-03-06 |
| Recording system utilizing phthalide derivatives as colorless chromogenic material Grant 4,748,148 - Kondo , et al. May 31, 1 | 1988-05-31 |
| Recording system utilizing phthalide derivatives as colorless chromogenic material Grant 4,641,160 - Kondo , et al. February 3, 1 | 1987-02-03 |
| Multicolor record material Grant 4,529,992 - Ishida , et al. July 16, 1 | 1985-07-16 |
| Heat-sensitive record material Grant 4,510,512 - Okamoto , et al. April 9, 1 | 1985-04-09 |
| Method of making oil-containing microcapsules Grant 4,222,891 - Okimoto , et al. September 16, 1 | 1980-09-16 |
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