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Masahiko Takikawa
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Yokohama, JP
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last 30 patents
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Patent Grant
Enhancement type MESFET
Patent number
5,949,095
Issue date
Sep 7, 1999
Fujitsu Limited
Masaki Nagahara
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Semiconductor device with InGaP channel layer
Patent number
5,945,695
Issue date
Aug 31, 1999
Fujitsu Limited
Masahiko Takikawa
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Field effect semiconductor device having a reduced leakage current
Patent number
5,900,641
Issue date
May 4, 1999
Fujitsu Limited
Naoki Hara
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Semiconductor device having a regrowth crystal region
Patent number
5,818,078
Issue date
Oct 6, 1998
Fujitsu Limited
Kozo Makiyama
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
HEMT type semiconductor device having two semiconductor well layers
Patent number
5,302,840
Issue date
Apr 12, 1994
Fujitsu Limited
Masahiko Takikawa
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Semiconductor device and production method thereof
Patent number
5,170,230
Issue date
Dec 8, 1992
Fujitsu Limited
Masahiko Takikawa
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Semiconductor device having a selectively doped heterostructure
Patent number
5,148,245
Issue date
Sep 15, 1992
Fujitsu Limited
Masahiko Takikawa
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Method for fabricating a semiconductor device including a semi-insu...
Patent number
5,128,275
Issue date
Jul 7, 1992
Fujitsu Limited
Masahiko Takikawa
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Method of producing a semiconductor device
Patent number
5,104,825
Issue date
Apr 14, 1992
Fujitsu Limited
Masahiko Takikawa
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
High electron mobility transistor
Patent number
4,958,203
Issue date
Sep 18, 1990
Fujitsu Limited
Masahiko Takikawa
H01 - BASIC ELECTRIC ELEMENTS