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Tadashi Hirao
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Hyogo, JP
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last 30 patents
Information
Patent Grant
Semiconductor integrated circuit device and a method of producing t...
Patent number
6,087,708
Issue date
Jul 11, 2000
Mitsubishi Denki Kabushiki Kaisha
Tadashi Hirao
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Semiconductor IC device with polysilicon resistor
Patent number
4,949,153
Issue date
Aug 14, 1990
Mitsubishi Denki Kabushiki Kaisha
Tadashi Hirao
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Method of making self aligned external and active base regions in I...
Patent number
4,812,417
Issue date
Mar 14, 1989
Mitsubishi Denki Kabushiki Kaisha
Tadashi Hirao
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Bipolar transistor integrated circuit and method of manufacturing t...
Patent number
4,803,174
Issue date
Feb 7, 1989
Mitsubishi Denki Kabushiki Kaisha
Tadashi Hirao
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Method of fabricating a solid state image sensing device
Patent number
4,791,070
Issue date
Dec 13, 1988
Mitsubishi Denki Kabushiki Kaisha
Tadashi Hirao
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Method of producing a semiconductor integrated circuit BI-MOS device
Patent number
4,772,567
Issue date
Sep 20, 1988
Mitsubishi Denki Kabushiki Kaisha
Tadashi Hirao
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Method of manufacturing bipolar transistor
Patent number
4,740,482
Issue date
Apr 26, 1988
Mitsubishi Denki Kabushiki Kaisha
Tadashi Hirao
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Method for forming silicide electrode in semiconductor device
Patent number
4,729,969
Issue date
Mar 8, 1988
Mitsubishi Denki Kabushiki Kaisha
Kakutaro Suda
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Method of making a self-aligned bipolar using differential oxidatio...
Patent number
4,728,618
Issue date
Mar 1, 1988
Mitsubishi Denki Kabushiki Kaisha
Tadashi Hirao
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Method of making a bipolar transistor with polycrystalline contacts
Patent number
4,709,469
Issue date
Dec 1, 1987
Mitsubishi Denki Kabushiki Kaisha
Tadashi Hirao
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Method for fabricating bipolar transistor in integrated circuit
Patent number
4,705,599
Issue date
Nov 10, 1987
Mitsubishi Denki Kabushiki Kaisha
Kakutaro Suda
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Method for fabricating a bipolar semiconductor device by undercutti...
Patent number
4,691,436
Issue date
Sep 8, 1987
Mitsubishi Denki Kabushiki Kaisha
Tadashi Hirao
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Semiconductor device
Patent number
4,665,424
Issue date
May 12, 1987
Mitsubishi Denki Kabushiki Kaisha
Tadashi Hirao
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Solid state image sensing device
Patent number
4,665,422
Issue date
May 12, 1987
Mitsubishi Denki Kabushiki Kaisha
Tadashi Hirao
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Method of manufacturing semiconductor device using a Czochralski wa...
Patent number
4,661,166
Issue date
Apr 28, 1987
Mitsubishi Denki Kabushiki Kaisha
Tadashi Hirao
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Solid-state image sensor provided with a bipolar transistor and an...
Patent number
4,651,016
Issue date
Mar 17, 1987
Mitsubishi Denki Kabushiki Kaisha
Tadashi Hirao
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Method of manufacturing semiconductor integrated circuit BI-MOS device
Patent number
4,486,942
Issue date
Dec 11, 1984
Mitsubishi Denki Kabushiki Kaisha
Tadashi Hirao
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Method of manufacturing a semiconductor integrated circuit BI-MOS d...
Patent number
4,445,268
Issue date
May 1, 1984
Mitsubishi Denki Kabushiki Kaisha
Tadashi Hirao
H01 - BASIC ELECTRIC ELEMENTS