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Patents Grants
last 30 patents
Information
Patent Grant
Semiconductor laser device, optical disk apparatus and optical inte...
Patent number
7,426,227
Issue date
Sep 16, 2008
Matsushita Electric Industrial Co., Ltd.
Masahiro Kume
G11 - INFORMATION STORAGE
Information
Patent Grant
Semiconductor laser device optical disk apparatus and optical integ...
Patent number
7,212,556
Issue date
May 1, 2007
Matsushita Electric Industrial Co., Ltd.
Masahiro Kume
G11 - INFORMATION STORAGE
Information
Patent Grant
Method for fabricating nitride semiconductor, method for fabricatin...
Patent number
7,160,748
Issue date
Jan 9, 2007
Matsushita Electric Industrial Co., Ltd.
Akihiko Ishibashi
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Formation method for semiconductor layer
Patent number
7,108,745
Issue date
Sep 19, 2006
Matsushita Electric Industrial Co., Ltd.
Yoshiaki Hasegawa
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Semiconductor laser device, optical disk apparatus and optical inte...
Patent number
7,092,423
Issue date
Aug 15, 2006
Matsushita Electric Industrial Co., Ltd.
Masahiro Kume
G11 - INFORMATION STORAGE
Information
Patent Grant
Group III-V nitride semiconductor light-emitting device which allow...
Patent number
6,940,100
Issue date
Sep 6, 2005
Matsushita Electric Industrial Co., Ltd.
Ayumu Tsujimura
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Method for fabricating nitride semiconductor, method for fabricatin...
Patent number
6,921,678
Issue date
Jul 26, 2005
Matsushita Electric Industrial Co., Ltd.
Akihiko Ishibashi
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Method of fabricating nitride semiconductor, method of fabricating...
Patent number
6,911,351
Issue date
Jun 28, 2005
Matsushita Electric Industrial Co., Ltd.
Isao Kidoguchi
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Method of fabricating nitride semiconductor device
Patent number
6,867,112
Issue date
Mar 15, 2005
Matsushita Electric Industrial Co., Ltd.
Akihiko Ishibashi
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Method of fabricating nitride semiconductor, method of fabricating...
Patent number
6,720,586
Issue date
Apr 13, 2004
Matsushita Electric Industrial Co., Ltd.
Isao Kidoguchi
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Method of fabricating nitride semiconductor device
Patent number
6,667,185
Issue date
Dec 23, 2003
Matsushita Electric Industrial Co., Ltd.
Akihiko Ishibashi
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Semiconductor light-emitting device with quantum well
Patent number
6,614,059
Issue date
Sep 2, 2003
Matsushita Electric Industrial Co., Ltd.
Ayumu Tsujimura
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Method for producing semiconductor and semiconductor laser device
Patent number
6,611,005
Issue date
Aug 26, 2003
Matsushita Electric Industrial Co., Ltd.
Ayumu Tsujimura
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Method for fabricating nitride semiconductor, method for fabricatin...
Patent number
6,586,774
Issue date
Jul 1, 2003
Matsushita Electric Industrial Co., Ltd.
Akihiko Ishibashi
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Formation method for semiconductor layer
Patent number
6,562,129
Issue date
May 13, 2003
Matsushita Electric Industrial Co., Ltd.
Yoshiaki Hasegawa
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Method and apparatus for depositing semiconductor film and method f...
Patent number
6,544,869
Issue date
Apr 8, 2003
Matsushita Electric Industrial Co., Ltd.
Kenji Harafuji
C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information
Patent Grant
Method for fabricating nitride semiconductor device
Patent number
6,518,082
Issue date
Feb 11, 2003
Matsushita Electric Industrial Co., Ltd.
Isao Kidoguchi
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Semiconductor laser device
Patent number
6,466,597
Issue date
Oct 15, 2002
Matsushita Electric Industrial Co., Ltd.
Masahiro Kume
B82 - NANO-TECHNOLOGY
Information
Patent Grant
Semiconductor laser device
Patent number
6,324,200
Issue date
Nov 27, 2001
Matsushita Electric Industrial Co., Ltd.
Satoshi Kamiyama
B82 - NANO-TECHNOLOGY
Information
Patent Grant
Method of manufacturing a semiconductor and a semiconductor light-e...
Patent number
6,281,522
Issue date
Aug 28, 2001
Matsushita Electric Industrial Co., Ltd.
Akihiko Ishibashi
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Method for producing semiconductor layer for a semiconductor laser...
Patent number
6,265,287
Issue date
Jul 24, 2001
Matsushita Electric Industrial Co., Ltd.
Ayumu Tsujimura
C30 - CRYSTAL GROWTH
Information
Patent Grant
Semiconductor light-emitting device and production method thereof
Patent number
6,136,626
Issue date
Oct 24, 2000
Matsushita Electric Industrial Co., Ltd.
Isao Kidoguchi
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Fabrication of semiconductor light-emitting device
Patent number
6,133,058
Issue date
Oct 17, 2000
Matsushita Electric Industrial Co., Ltd.
Isao Kidoguchi
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Optical disk recording/reproducing method and apparatus for prevent...
Patent number
6,072,762
Issue date
Jun 6, 2000
Matsushita Electric Industrial Co., Ltd.
Masahiro Kume
G11 - INFORMATION STORAGE
Information
Patent Grant
Methods of manufacturing semiconductor, semiconductor device and se...
Patent number
6,030,849
Issue date
Feb 29, 2000
Matsushita Electric Industrial Co. Ltd.
Yoshiaki Hasegawa
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Method of manufacturing a semiconductor light-emitting device
Patent number
5,923,950
Issue date
Jul 13, 1999
Matsushita Electric Industrial Co., Inc.
Akihiko Ishibashi
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Semiconductor light-emitting device and production method thereof
Patent number
5,895,225
Issue date
Apr 20, 1999
Matsushita Electric Industrial Co., Ltd.
Isao Kidoguchi
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Semiconductor light-emitting device and production method thereof
Patent number
5,751,013
Issue date
May 12, 1998
Matsushita Electric Industrial Co., Ltd.
Isao Kidoguchi
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Multi-tip semiconductor laser
Patent number
5,299,218
Issue date
Mar 29, 1994
Matsushita Electric Industrial Co., Ltd.
Yuzaburo Ban
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Semiconductor laser and manufacturing method thereof
Patent number
5,144,633
Issue date
Sep 1, 1992
Matsushita Electric Industrial Co., Ltd.
Kiyoshi Ohnaka
H01 - BASIC ELECTRIC ELEMENTS
Patents Applications
last 30 patents
Information
Patent Application
Semiconductor laser device, optical disk apparatus and optical inte...
Publication number
20060239311
Publication date
Oct 26, 2006
Matsushita Electric Industrial Co., Ltd.
Masahiro Kume
G11 - INFORMATION STORAGE
Information
Patent Application
Method for fabricating nitride semiconductor, method for fabricatin...
Publication number
20050142682
Publication date
Jun 30, 2005
Matsushita Electric Industrial Co., Ltd.
Akihiko Ishibashi
B82 - NANO-TECHNOLOGY
Information
Patent Application
Semiconductor laser device, optical disk apparatus and optical inte...
Publication number
20040213315
Publication date
Oct 28, 2004
Matsushita Electric Industrial Co., Ltd.
Masahiro Kume
G11 - INFORMATION STORAGE
Information
Patent Application
Formation method for semiconductor layer
Publication number
20030209192
Publication date
Nov 13, 2003
Matsushita Electric Industrial Co., Ltd.
Yoshiaki Hasegawa
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
Method for fabricating nitride semiconductor, method for fabricatin...
Publication number
20030203629
Publication date
Oct 30, 2003
Matsushita Electric Industrial Co., Ltd.
Akihiko Ishibashi
B82 - NANO-TECHNOLOGY
Information
Patent Application
Semiconductor light-emitting device, method for fabricating the sam...
Publication number
20030168653
Publication date
Sep 11, 2003
Matsushita Electric Industrial Co., Ltd.
Ayumu Tsujimura
B82 - NANO-TECHNOLOGY
Information
Patent Application
Method of fabricating nitride semiconductor device
Publication number
20030143765
Publication date
Jul 31, 2003
Matsushita Electric Industrial Co., Ltd.
Akihiko Ishibashi
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
Method of fabricating nitride semiconductor, method of fabricating...
Publication number
20030143771
Publication date
Jul 31, 2003
Matsushita Electric Industrial Co., Ltd.
Isao Kidoguchi
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
Semiconductor light-emitting device, method for fabricating the sam...
Publication number
20030132448
Publication date
Jul 17, 2003
Matsushita Electric Industrial Co., Ltd.
Ayumu Tsujimura
B82 - NANO-TECHNOLOGY
Information
Patent Application
GaN-based compound semiconductor EPI-wafer and semiconductor elemen...
Publication number
20030001238
Publication date
Jan 2, 2003
Matsushita Electric Industrial Co., Ltd.
Yuzaburo Ban
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
Method and apparatus for depositing semiconductor film and method f...
Publication number
20020195054
Publication date
Dec 26, 2002
Matsushita Electric Industrial Co., Ltd.
Kenji Harafuji
C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information
Patent Application
Formation method for semiconductor layer
Publication number
20020102761
Publication date
Aug 1, 2002
Yoshiaki Hasegawa
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
Method for fabricating nitride semiconductor, method for fabricatin...
Publication number
20020081763
Publication date
Jun 27, 2002
Akihiko Ishibashi
B82 - NANO-TECHNOLOGY
Information
Patent Application
Semiconductor film deposition apparatus
Publication number
20010032588
Publication date
Oct 25, 2001
Kenji Harafuji
C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information
Patent Application
Method for producing semiconductor and semiconductor laser device
Publication number
20010008285
Publication date
Jul 19, 2001
Matsushita Electric Industrial Co., Ltd.
Ayumu Tsujimura
C30 - CRYSTAL GROWTH