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Keiichi Yabusaki
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Tokyo, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Semiconductor laser element, semiconductor etchant, and method of f...
Patent number
6,853,664
Issue date
Feb 8, 2005
The Furukawa Electric Co., Ltd.
Takeshi Shiojima
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Semiconductor devices, and methods of manufacture of the same
Patent number
6,847,055
Issue date
Jan 25, 2005
The Furukawa Electric Co., Ltd.
Keiichi Yabusaki
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Semiconductor laser element, semiconductor etchant, and method of f...
Patent number
6,549,554
Issue date
Apr 15, 2003
The Furukawa Electric Co., Ltd.
Takeshi Shiojima
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Method for fabricating a semiconductor optical device having a ridg...
Patent number
6,335,216
Issue date
Jan 1, 2002
The Furukawa Electric Co., Ltd.
Junji Yoshida
H01 - BASIC ELECTRIC ELEMENTS
Patents Applications
last 30 patents
Information
Patent Application
Semiconductor devices, and methods of manufacture of the same
Publication number
20040084685
Publication date
May 6, 2004
THE FURUKAWA ELECTRIC CO., LTD.
Keiichi Yabusaki
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
Semiconductor laser element, semiconductor etchant, and method of f...
Publication number
20030152123
Publication date
Aug 14, 2003
THE FURUKAWA ELECTRIC CO., LTD.
Takeshi Shiojima
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
Semiconductor device and method of manufacture of the semiconductor...
Publication number
20020117680
Publication date
Aug 29, 2002
Keiichi Yabusaki
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
Semiconductor devices, and methods of manufacture of the same
Publication number
20020096685
Publication date
Jul 25, 2002
Keiichi Yabusaki
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
Semiconductor laser element, semiconductor etchant, and method of f...
Publication number
20010038654
Publication date
Nov 8, 2001
THE FURUKAWA ELECTRIC CO., LTD.
Takeshi Shiojima
H01 - BASIC ELECTRIC ELEMENTS