Tokumasu; Tsugio
Patent Applications and Registrations
Patent applications and USPTO patent grants for Tokumasu; Tsugio.The latest application filed is for "magneto-optical device".
- Tokumasu; Tsugio - Minato-ku JP
- Tokumasu; Tsugio - Shizuoka JP
- Tokumasu; Tsugio - Shizuoka-ken JP
| Patent | Date |
|---|---|
| Magneto-optical device Grant 7,280,264 - Goto , et al. October 9, 2 | 2007-10-09 |
| Magneto-optical device App 20070002425 - Goto; Yuji ; et al. | 2007-01-04 |
| Optical circulator and optical switch Grant 7,050,232 - Wada , et al. May 23, 2 | 2006-05-23 |
| Variable optical filter Grant 7,050,216 - Fukushima , et al. May 23, 2 | 2006-05-23 |
| Faraday rotation device and optical device using same Grant 7,006,273 - Sahashi , et al. February 28, 2 | 2006-02-28 |
| Faraday rotation device and optical device using same App 20050141075 - Sahashi, Teruhisa ; et al. | 2005-06-30 |
| Variable optical filter App 20050134954 - Fukushima, Nobuhiro ; et al. | 2005-06-23 |
| Farady rotation device and optical device comprising it Grant 6,876,480 - Sahashi , et al. April 5, 2 | 2005-04-05 |
| Farady rotation device and optical device comprising it App 20040027637 - Sahashi, Teruhisa ; et al. | 2004-02-12 |
| Optical circulator and optical switch App 20040012854 - Wada, Shusuke ; et al. | 2004-01-22 |
| Polarization plane switch and optical switching device using the same Grant 5,521,741 - Umezawa , et al. May 28, 1 | 1996-05-28 |
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