Sakata; Yasutaka

Patent Applications and Registrations

Patent applications and USPTO patent grants for Sakata; Yasutaka.The latest application filed is for "projection display unit".

Company Profile

0.13.12

Sakata; Yasutaka - Chiba JP
Sakata; Yasutaka - Kanagawa JP
Sakata; Yasutaka - 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
Projection display unit Grant 10,303,306 - Hasuike , et al.	2019-05-28
Projection Display Unit App 20170285875 - HASUIKE; TAKAKI ; et al.	2017-10-05
Optical semiconductor device and method of manufacturing same Grant 7,920,613 - Sakata April 5, 2	2011-04-05
Distributed feedback laser diode Grant 7,633,986 - Kitamura , et al. December 15, 2	2009-12-15
Optical Semiconductor Device And Method Of Manufacturing Same App 20090092164 - SAKATA; Yasutaka	2009-04-09
Distributed Feedback Laser Diode App 20070280321 - Kitamura; Shotaro ; et al.	2007-12-06
Optical semiconductor device and process for producing the same Grant 7,083,995 - Sakata August 1, 2	2006-08-01
Optical semiconductor device and method for manufacturing the same Grant 6,828,589 - Sakata December 7, 2	2004-12-07
Optical semiconductor device and process for producing the same App 20040156411 - Sakata, Yasutaka	2004-08-12
Optical semiconductor device and process for producing the same Grant 6,707,839 - Sakata March 16, 2	2004-03-16
Optical semiconductor device and method for manufacturing the same App 20030160249 - Sakata, Yasutaka	2003-08-28
Laser elements having different wavelengths formed from one semiconductor substrate App 20020101897 - Sakata, Yasutaka	2002-08-01
Optical semiconductor device having active layer and carrier recombination layer different from each other App 20020042155 - Sakata, Yasutaka	2002-04-11
Optical semiconductor device, method for manufacturing the same, and optical module and optical communication apparatus provided with the optical semiconductor device App 20020003914 - Sakata, Yasutaka	2002-01-10
Fabricating Method Of Optical Semiconductor Device App 20010041379 - SAKATA, YASUTAKA	2001-11-15
Optical semiconductor device and method for manufacturing the same App 20010019568 - Sakata, Yasutaka	2001-09-06
Laser elements having different wavelengths formed from one semiconductor substrate App 20010005391 - Sakata, Yasutaka	2001-06-28
Method of producing an optical semiconductor device having a waveguide layer buried in an InP current blocking layer App 20010001612 - Inomoto, Yasumasa ; et al.	2001-05-24
Optical semiconductor device with a current blocking structure and method for making the same Grant 6,134,368 - Sakata October 17, 2	2000-10-17
Electro-absorption type semiconductor optical modulator having a quantum well structure Grant 6,100,543 - Sakata August 8, 2	2000-08-08
Semiconductor optical waveguide and method of fabricating the same Grant 5,891,748 - Sakata April 6, 1	1999-04-06
Semiconductor optical integrated circuits and method for fabricating the same Grant 5,770,466 - Sasaki , et al. June 23, 1	1998-06-23
Method for fabricating optical semiconductor device Grant 5,756,373 - Sakata May 26, 1	1998-05-26
Fabrication process for semiconductor optical device Grant 5,580,818 - Sakata December 3, 1	1996-12-03
Method of making tunable semiconductor laser Grant 5,284,791 - Sakata , et al. February 8, 1	1994-02-08

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