Yoshimoto; Naoto

Patent Applications and Registrations

Patent applications and USPTO patent grants for Yoshimoto; Naoto.The latest application filed is for "self-diagnostic method for pon protection system, and pon protection system".

Company Profile

0.5.5

Yoshimoto; Naoto - Yokosuka JP
Yoshimoto; Naoto - Tokyo JP
Yoshimoto; Naoto - Yokosuka-shi JP
Yoshimoto; Naoto - Chiba 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
Optical coupling/splitting device, two-way optical propagation device, and optical-transmit-receive system Grant 9,306,670 - Fujiwara , et al. April 5, 2	2016-04-05
Self-diagnostic method for PON protection system, and PON protection system Grant 9,276,670 - Fukada , et al. March 1, 2	2016-03-01
Optical network system Grant 9,179,204 - Mitsui , et al. November 3, 2	2015-11-03
Self-diagnostic Method For Pon Protection System, And Pon Protection System App 20150003822 - Fukada; Youichi ; et al.	2015-01-01
Optical Network System App 20140219654 - Mitsui; Takashi ; et al.	2014-08-07
Light Merging/branching Device, Bidirectional Light Propagation Device, And Light Transmission/reception System App 20140186040 - Fujiwara; Masamichi ; et al.	2014-07-03
Optical communication light source unit and wavelength monitoring control method Grant 7,869,717 - Kawai , et al. January 11, 2	2011-01-11
Optical Communication Light Source Unit and Wavelength Monitoring Control Method App 20090161708 - Kawai; Shingo ; et al.	2009-06-25
Optical module and method for monitoring and controlling wavelengths Grant 7,460,572 - Kawai , et al. December 2, 2	2008-12-02
Optical module and its wavelength monitor control method App 20060145051 - Kawai; Shingo ; et al.	2006-07-06

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