Obara; Hitoshi

Patent Applications and Registrations

Patent applications and USPTO patent grants for Obara; Hitoshi.The latest application filed is for "multistage switch control circuit".

Company Profile

0.6.3

Obara; Hitoshi - Akita JP
Obara; Hitoshi - Yokohama JP
Obara; Hitoshi - Yokosukashi JP
Obara, Hitoshi - Yokohama-shi JP
Obara; Hitoshi - Tokyo JP
Obara; Hitoshi - Kawasaki JP

*profile and listings may contain filings by different individuals or companies with the same name. Review application materials to confirm ownership/assignment.

Patent Activity

Patent	Date
Multistage switch control circuit Grant 8,059,640 - Obara , et al. November 15, 2	2011-11-15
Multistage Switch Control Circuit App 20100098070 - Obara; Hitoshi ; et al.	2010-04-22
Node apparatus, optical wavelength division multiplexing network, and system switching method Grant 7,433,594 - Takachio , et al. October 7, 2	2008-10-07
Node apparatus, optical wavelength division multiplexing network, and system switching method App 20070031146 - Takachio; Noboru ; et al.	2007-02-08
Node apparatus, optical wavelength division multiplexing network, and system switching method Grant 7,164,861 - Takachio , et al. January 16, 2	2007-01-16
Node apparatus, optical wavelength division multiplexing network, and system switching method App 20010017722 - Takachio, Noboru ; et al.	2001-08-30
Disk shaped tunable optical filter Grant 6,157,025 - Katagiri , et al. December 5, 2	2000-12-05
UV exposure with elongated service lifetime Grant 5,696,623 - Fujie , et al. December 9, 1	1997-12-09
Multiwavelength simultaneous monitoring circuit employing arrayed-waveguide grating Grant 5,617,234 - Koga , et al. April 1, 1	1997-04-01

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