Iwakura; Ryoji
Patent Applications and Registrations
Patent applications and USPTO patent grants for Iwakura; Ryoji.The latest application filed is for "electric timepiece".
- Iwakura; Ryoji - Tokyo JP
- Iwakura; Ryoji - Sayama JP
- Iwakura, Ryoji - Saitama JP
- Iwakura, Ryoji - Sayama-shi JP
| Patent | Date |
|---|---|
| Electric timepiece Grant 7,436,737 - Fukuda , et al. October 14, 2 | 2008-10-14 |
| Timer of electric timepiece Grant 6,894,952 - Morokawa , et al. May 17, 2 | 2005-05-17 |
| Charging circuit Grant 6,853,219 - Aihara , et al. February 8, 2 | 2005-02-08 |
| Electric timepiece App 20050002277 - Fukuda, Masami ; et al. | 2005-01-06 |
| Charging circuit App 20040155697 - Aihara, Katsuyoshi ; et al. | 2004-08-12 |
| Crystal oscillator circuit using CMOSFETs Grant 6,727,769 - Aihara , et al. April 27, 2 | 2004-04-27 |
| Timer of electric timepiece App 20040062147 - Morokawa, Shigeru ; et al. | 2004-04-01 |
| Crystal oscillator circuit using CMOSFETs App 20020180542 - Aihara, Katsuyoshi ; et al. | 2002-12-05 |
| FET Quartz oscillators Grant 4,346,350 - Morokawa , et al. August 24, 1 | 1982-08-24 |
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