Kwon; Sung-du

Patent Applications and Registrations

Patent applications and USPTO patent grants for Kwon; Sung-du.The latest application filed is for "apparatus and method for detecting beam power in optical drive".

Company Profile

0.6.6

Kwon; Sung-du - Seoul KR

*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
Apparatus for controlling monitor photo diode in optical pickup system Grant 7,372,796 - Lee , et al. May 13, 2	2008-05-13
Apparatus and method for detecting beam power in optical drive Grant 7,343,103 - Seong , et al. March 11, 2	2008-03-11
Laser power monitor device, optical pickup including the same, and optical recording and/or reproducing apparatus including the same Grant 7,272,103 - Kwon , et al. September 18, 2	2007-09-18
Optical signal converter and method of controlling amplification gain according to rotating speed of optical disc Grant 7,251,206 - Baek , et al. July 31, 2	2007-07-31
Laser power control device Grant 7,248,553 - Kwon , et al. July 24, 2	2007-07-24
Apparatus and method for detecting beam power in optical drive App 20060188269 - Seong; Pyong-yong ; et al.	2006-08-24
Apparatus and method for detecting beam power in optical drive Grant 7,068,933 - Seong , et al. June 27, 2	2006-06-27
Laser power monitor device, optical pickup including the same, and optical recording and/or reproducing apparatus including the same App 20050002303 - Kwon, Sung-du ; et al.	2005-01-06
Optical signal converter and method of controlling amplification gain according to rotating speed of optical disc App 20040264328 - Baek, Chang-hoon ; et al.	2004-12-30
Laser power control device App 20040184378 - Kwon, Sung-du ; et al.	2004-09-23
Apparatus for controlling monitor photo diode in optical pickup system App 20040081041 - Lee, Jun-hyuk ; et al.	2004-04-29
Apparatus and method for detecting beam power in optical drive App 20030016426 - Seong, Pyong-Yong ; et al.	2003-01-23

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