Sumimoto; Toru
Patent Applications and Registrations
Patent applications and USPTO patent grants for Sumimoto; Toru.The latest application filed is for "electric field displacing type optical isolator".
- Sumimoto; Toru - Tokyo JA
| Patent | Date |
|---|---|
| Electric Field Displacing Type Optical Isolator Grant 3,860,325 - Matsushita , et al. January 14, 1 | 1975-01-14 |
| Ion Exchange Process For Manufacturing Integrated Optical Circuits Grant 3,857,689 - Koizumi , et al. December 31, 1 | 1974-12-31 |
| Method For Manufacturing Optical Integrated Circuits Utilizing An External Electric Field Grant 3,836,348 - Sumimoto , et al. September 17, 1 | 1974-09-17 |
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