Sonobe; Yoji
Patent Applications and Registrations
Patent applications and USPTO patent grants for Sonobe; Yoji.The latest application filed is for "optical spectrum analyzer with high performance measurement function".
- Sonobe; Yoji - Machida JP
| Patent | Date |
|---|---|
| Optical spectrum analyzer with high performance measurement function Grant 4,995,724 - Sonobe , et al. February 26, 1 | 1991-02-26 |
| Spectrometer Grant 4,969,740 - Sonobe November 13, 1 | 1990-11-13 |
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