Kiyoshi Takei

Person

Saitama-ken, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Hybrid recording medium and information recording apparatus
- Patent number 7,225,192
- Issue date May 29, 2007
- Pioneer Corporation
- Akihiro Tozaki
- G11 - INFORMATION STORAGE
Information Patent Grant
Distributed feedback type semiconductor laser device
- Patent number 6,795,466
- Issue date Sep 21, 2004
- Pioneer Corporation
- Kiyoshi Takei
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Ridge type semiconductor laser of distributed feedback
- Patent number 6,714,571
- Issue date Mar 30, 2004
- Pioneer Corporation
- Yoshiaki Watanabe
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Ridge type semiconductor laser of laterally-coupled distributed fee...
- Patent number 6,573,116
- Issue date Jun 3, 2003
- Pioneer Electronic Corporation
- Yoshiaki Watanabe
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Ridge-structure DFB semiconductor laser and method of manufacturing...
- Patent number 6,537,841
- Issue date Mar 25, 2003
- Pioneer Corporation
- Kiyoshi Takei
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Optical transmitter/receiver module and method of manufacturing the...
- Patent number 6,535,670
- Issue date Mar 18, 2003
- Pioneer Corporation
- Kiyoshi Takei
- G02 - OPTICS
Information Patent Grant
Optical integrated device and manufacturing method thereof
- Patent number 6,519,379
- Issue date Feb 11, 2003
- Pioneer Corporation
- Masataka Izawa
- G11 - INFORMATION STORAGE
Information Patent Grant
Optical transmitter and receiver module which demultiplexes a super...
- Patent number 6,504,632
- Issue date Jan 7, 2003
- Pioneer Corporation
- Yoshiaki Watanabe
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Distributed feedback semiconductor laser element and method for mak...
- Patent number 6,500,687
- Issue date Dec 31, 2002
- Pioneer Electronic Corporation
- Kiyoshi Takei
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Ridge-structure DFB semiconductor laser and method of manufacturing...
- Patent number 6,381,258
- Issue date Apr 30, 2002
- Pioneer Corporation
- Kiyoshi Takei
- B82 - NANO-TECHNOLOGY
Information Patent Grant
Method for producing semiconductor laser module
- Patent number 6,348,360
- Issue date Feb 19, 2002
- Pioneer Corporation
- Nong Chen
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Distributed feedback semiconductor laser
- Patent number 6,301,283
- Issue date Oct 9, 2001
- Pioneer Electronic Corporation
- Nong Chen
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Ridge type semiconductor laser of laterally-coupled distributed fee...
- Patent number 6,292,503
- Issue date Sep 18, 2001
- Pioneer Electronic Corporation
- Yoshiaki Watanabe
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
High density optical disk and method of making
- Patent number 5,182,669
- Issue date Jan 26, 1993
- Pioneer Electronic Corporation
- Kiyofumi Chikuma
- G11 - INFORMATION STORAGE

Patents Applicationslast 30 patents

Information Patent Application
Ridge-structure DFB semiconductor laser and method of manufacturing...
- Publication number 20020064199
- Publication date May 30, 2002
- PIONEER CORPORATION
- Kiyoshi Takei
- B82 - NANO-TECHNOLOGY
Information Patent Application
Hybrid recording medium and information recording apparatus
- Publication number 20010048640
- Publication date Dec 6, 2001
- Akihiro Tozaki
- G01 - MEASURING TESTING
Information Patent Application
Ridge type semiconductor laser of laterally-coupled distributed fee...
- Publication number 20010046246
- Publication date Nov 29, 2001
- Pioneer Electronic Corporation
- Yoshiaki Watanabe
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
DISTRIBUTED FEEDBACK SEMICONDUCTOR LASER ELEMENT AND METHOD FOR MAK...
- Publication number 20010039069
- Publication date Nov 8, 2001
- Kiyoshi Takei
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
Ridge type semiconductor laser of distributed feedback
- Publication number 20010036213
- Publication date Nov 1, 2001
- Yoshiaki Watanabe
- H01 - BASIC ELECTRIC ELEMENTS

Kiyoshi Takei

Person

Patents Grantslast 30 patents

Hybrid recording medium and information recording apparatus

Distributed feedback type semiconductor laser device

Ridge type semiconductor laser of distributed feedback

Ridge type semiconductor laser of laterally-coupled distributed fee...

Ridge-structure DFB semiconductor laser and method of manufacturing...

Optical transmitter/receiver module and method of manufacturing the...

Optical integrated device and manufacturing method thereof

Optical transmitter and receiver module which demultiplexes a super...

Distributed feedback semiconductor laser element and method for mak...

Ridge-structure DFB semiconductor laser and method of manufacturing...

Method for producing semiconductor laser module

Distributed feedback semiconductor laser

Ridge type semiconductor laser of laterally-coupled distributed fee...

High density optical disk and method of making

Patents Applicationslast 30 patents

Ridge-structure DFB semiconductor laser and method of manufacturing...

Hybrid recording medium and information recording apparatus

Ridge type semiconductor laser of laterally-coupled distributed fee...

DISTRIBUTED FEEDBACK SEMICONDUCTOR LASER ELEMENT AND METHOD FOR MAK...

Ridge type semiconductor laser of distributed feedback