Harada; Shigekazu

Patent Applications and Registrations

Patent applications and USPTO patent grants for Harada; Shigekazu.The latest application filed is for "wavelength division multiplexing transmission system and remote apparatus and station apparatus used therein".

Company Profile

0.6.7

Harada; Shigekazu - Tokyo 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
Wavelength division multiplexing transmission system and remote apparatus and station apparatus used therein Grant 8,139,940 - Harada March 20, 2	2012-03-20
Wavelength Division Multiplexing Transmission system and Remote Apparatus and Station Apparatus Used Therein App 20100142953 - Harada; Shigekazu	2010-06-10
Wavelength division multiplexing transmission system and remote apparatus and station apparatus used therein Grant 7,684,703 - Harada March 23, 2	2010-03-23
Transmission Method, Transmitter-receiver, And Transmitting-receiving System App 20090279897 - Takeuchi; Takeshi ; et al.	2009-11-12
Optical transmission switching device Grant 7,609,728 - Arikawa , et al. October 27, 2	2009-10-27
Transmission method, transmitter-receiver, and transmitting-receiving system Grant 7,580,634 - Takeuchi , et al. August 25, 2	2009-08-25
Multiplex communication system and method Grant 7,372,804 - Arikawa , et al. May 13, 2	2008-05-13
Wavelength division-multiplexing optical transmission system Grant 7,295,779 - Harada , et al. November 13, 2	2007-11-13
Optical transmission switching device App 20060072923 - Arikawa; Toshiaki ; et al.	2006-04-06
Transmission loss and gain measurement method, transmitter-receiver, and transmitting-receiving system App 20050111843 - Takeuchi, Takeshi ; et al.	2005-05-26
Wavelength division multiplexing transmission system and remote apparatus and station apparatus used therein App 20040179855 - Harada, Shigekazu	2004-09-16
Multiplex communication system and method App 20030133712 - Arikawa, Toshiaki ; et al.	2003-07-17
Wavelength division-multiplexing optical transmission system App 20030067652 - Harada, Shigekazu ; et al.	2003-04-10

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