Katsuyama; Tomokazu

Patent Applications and Registrations

Patent applications and USPTO patent grants for Katsuyama; Tomokazu.The latest application filed is for "semiconductor optical device and method for manufacturing the same".

Company Profile

0.15.15

Katsuyama; Tomokazu - Osaka JP
Katsuyama; Tomokazu - Yokohama JP
KATSUYAMA; Tomokazu - Yokohama-shi JP
Katsuyama; Tomokazu - Kanagawa 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
Semiconductor optical device and method for manufacturing the same Grant 11,126,021 - Katsuyama September 21, 2	2021-09-21
Semiconductor Optical Device And Method For Manufacturing The Same App 20210041726 - KATSUYAMA; Tomokazu	2021-02-11
Integrated semiconductor device Grant 9,341,772 - Katsuyama May 17, 2	2016-05-17
Integrated semiconductor device Grant 9,235,002 - Katsuyama January 12, 2	2016-01-12
Method for producing integrated optical device Grant 8,741,670 - Katsuyama June 3, 2	2014-06-03
Method for producing integrated optical device Grant 8,637,337 - Katsuyama January 28, 2	2014-01-28
Method for producing integrated optical device Grant 8,637,338 - Katsuyama , et al. January 28, 2	2014-01-28
Method For Producing Integrated Optical Device App 20130183778 - KATSUYAMA; Tomokazu	2013-07-18
Method For Producing Integrated Optical Device App 20130183784 - KATSUYAMA; Tomokazu ; et al.	2013-07-18
Method For Producing Integrated Optical Device App 20130183783 - KATSUYAMA; Tomokazu	2013-07-18
Integrated Semiconductor Device App 20130129278 - Katsuyama; Tomokazu	2013-05-23
Integrated Semiconductor Device App 20130129277 - KATSUYAMA; Tomokazu	2013-05-23
Method to form semiconductor laser diode with mesa structure buried by current blocking layer Grant 8,227,275 - Katsuyama July 24, 2	2012-07-24
Method to form semiconductor laser diode Grant 8,021,985 - Katsuyama September 20, 2	2011-09-20
Method for forming a semiconductor light-emitting device Grant 7,998,770 - Matsumura , et al. August 16, 2	2011-08-16
Method To Form Semiconductor Laser Diode App 20110159620 - KATSUYAMA; Tomokazu	2011-06-30
Method of producing semiconductor optical device Grant 7,816,157 - Katsuyama October 19, 2	2010-10-19
Method To Form Semiconductor Laser Diode With Mesa Structure Buried By Current Blocking Layer App 20100190283 - KATSUYAMA; Tomokazu	2010-07-29
Method of fabricating a semiconductor optical device Grant 7,723,138 - Katsuyama May 25, 2	2010-05-25
Integrated optical device and fabrication method thereof Grant 7,678,594 - Katsuyama March 16, 2	2010-03-16
Light-emitting device on n-type InP substrate heavily doped with sulfur Grant 7,627,009 - Katsuyama , et al. December 1, 2	2009-12-01
Method Of Producing Semiconductor Optical Device App 20090203159 - Katsuyama; Tomokazu	2009-08-13
Semiconductor optical device App 20090117676 - Katsuyama; Tomokazu	2009-05-07
Method for forming a semiconductor light-emitting device and a semiconductor light-emitting device App 20090001408 - Matsumura; Atsushi ; et al.	2009-01-01
Light-emitting device on n-type InP substrate heavily doped with sulfur App 20080095206 - Katsuyama; Tomokazu ; et al.	2008-04-24
Integrated optical device and fabrication method thereof App 20080003704 - Katsuyama; Tomokazu	2008-01-03
AC coupling circuit having a large capacitance and a good frequency response Grant 7,196,909 - Katsuyama March 27, 2	2007-03-27
AC coupling circuit having a large capacitance and a good frequency response App 20040223306 - Katsuyama, Tomokazu	2004-11-11
Optical module Grant 6,791,159 - Moto , et al. September 14, 2	2004-09-14
Optical module App 20040047540 - Moto, Akihiro ; et al.	2004-03-11

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