Takaoka; Keiji

Patent Applications and Registrations

Patent applications and USPTO patent grants for Takaoka; Keiji.The latest application filed is for "optoelectronic semiconductor device and light signal input/output device".

Company Profile

0.16.12

Takaoka; Keiji - Kawasaki JP
Takaoka; Keiji - Kanagawa-Ken JP
Takaoka; Keiji - Kawasaki-shi JP
Takaoka; Keiji - Urayasu JP
Takaoka; Keiji - Yokohama

*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
Wiring board and a semiconductor device using the same Grant 7,589,282 - Yamada , et al. September 15, 2	2009-09-15
Wiring board and a semiconductor device using the same Grant 7,463,491 - Yamada , et al. December 9, 2	2008-12-09
Optoelectronic semiconductor device and light signal input/output device Grant 7,427,804 - Yamada , et al. September 23, 2	2008-09-23
Laminated semiconductor substrate and optical semiconductor element Grant 7,276,735 - Kushibe , et al. October 2, 2	2007-10-02
Optoelectronic semiconductor device and light signal input/output device App 20070221931 - Yamada; Hiroshi ; et al.	2007-09-27
Vertical cavity surface emitting laser diode and method for manufacturing the same Grant 7,244,629 - Ezaki , et al. July 17, 2	2007-07-17
Wiring board and a semiconductor device using the same App 20070151752 - Yamada; Hiroshi ; et al.	2007-07-05
Optoelectronic semiconductor device and light signal input/output device Grant 7,230,278 - Yamada , et al. June 12, 2	2007-06-12
Vertical cavity surface emitting laser diode App 20060187997 - Ezaki; Mizunori ; et al.	2006-08-24
Vertical-cavity surface emitting laser diode and its manufacturing method Grant 7,068,696 - Ezaki , et al. June 27, 2	2006-06-27
Optoelectronic semiconductor device and light signal input/output device App 20050087747 - Yamada, Hiroshi ; et al.	2005-04-28
Resonant-cavity light-emitting diode and optical transmission module using the light-emitting diode Grant 6,881,984 - Takaoka April 19, 2	2005-04-19
Wiring board and a semiconductor device using the same App 20050063635 - Yamada, Hiroshi ; et al.	2005-03-24
Laminated semiconductor substrate and optical semiconductor element App 20040245536 - Kushibe, Mitsuhiro ; et al.	2004-12-09
Vertical-cavity surface emitting laser diode and its manufacturing method App 20040165636 - Ezaki, Mizunori ; et al.	2004-08-26
Laminated semiconductor substrate and optical semiconductor element Grant 6,768,137 - Kushibe , et al. July 27, 2	2004-07-27
Resonant-cavity light-emitting diode and optical transmission module using the light-emitting diode App 20040046180 - Takaoka, Keiji	2004-03-11
Semiconductor surface light-emitting device Grant 6,678,307 - Ezaki , et al. January 13, 2	2004-01-13
Resonant-cavity light-emitting diode and optical transmission module using the light-emitting diode Grant 6,661,031 - Takaoka December 9, 2	2003-12-09
Vertical cavity-type semiconductor light-emitting device and optical module using vertical cavity-type semiconductor light-emitting device Grant 6,653,660 - Takaoka November 25, 2	2003-11-25
Laminated semiconductor substrate and optical semiconductor element App 20030183837 - Kushibe, Mitsuhiro ; et al.	2003-10-02
Semiconductor surface light-emitting device App 20030063649 - Ezaki, Mizunori ; et al.	2003-04-03
Resonant-cavity light-emitting diode and optical transmission module using the light-emitting diode App 20020134987 - Takaoka, Keiji	2002-09-26
Vertical cavity-type semiconductor light-emitting device and optical module using vertical cavity -type semiconductor light-emitting device App 20020038869 - Takaoka, Keiji	2002-04-04
Grating coupled surface emitting device Grant 5,970,081 - Hirayama , et al. October 19, 1	1999-10-19
Semiconductor device and method of manufacturing the same Grant 5,822,349 - Takaoka , et al. October 13, 1	1998-10-13
Optical interconnection device Grant 5,434,426 - Furuyama , et al. July 18, 1	1995-07-18
Semiconductor photodetector device and method of manufacturing the same Grant 5,001,335 - Takaoka , et al. March 19, 1	1991-03-19

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