Nagao; Yasuyuki
Patent Applications and Registrations
Patent applications and USPTO patent grants for Nagao; Yasuyuki.The latest application filed is for "raman gain measuring method and apparatus".
- Nagao; Yasuyuki - Saitama JP
- Nagao; Yasuyuki - Hasuda JP
- Nagao, Yasuyuki - Saitama-ken JP
- Nagao; Yasuyuki - Tokyo JP
- Nagao; Yasuyuki - Yokohama JP
- Nagao; Yasuyuki - Hoya JP
| Patent | Date |
|---|---|
| Raman gain measuring method and apparatus Grant 7,050,220 - Miyakawa , et al. May 23, 2 | 2006-05-23 |
| Raman gain measuring method and apparatus App 20040207909 - Miyakawa, Takayuki ; et al. | 2004-10-21 |
| Four fiber ring network optical switching circuit using branched inputs Grant 6,782,201 - Yamamoto , et al. August 24, 2 | 2004-08-24 |
| Four fiber ring network optical switching circuit using branched inputs App 20020075535 - Yamamoto, Shu ; et al. | 2002-06-20 |
| Semiconductor memory operating electrically and optically, retaining information without power supply Grant 6,147,901 - Sakata , et al. November 14, 2 | 2000-11-14 |
| Optical Mach-Zehnder type logic element which performs an XOR operation Grant 5,315,422 - Utaka , et al. May 24, 1 | 1994-05-24 |
| Magneto-optical recording medium Grant 4,628,485 - Tanaka , et al. December 9, 1 | 1986-12-09 |
| Magneto-optical recording medium Grant 4,559,573 - Tanaka , et al. December 17, 1 | 1985-12-17 |
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