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Hisao Katto
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Hinode, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Method of fabrication of semiconductor integrated circuit device
Patent number
5,610,089
Issue date
Mar 11, 1997
Hitachi, Ltd.
Hidetoshi Iwai
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Method of making a semiconductor memory device
Patent number
5,580,810
Issue date
Dec 3, 1996
Hitachi, Ltd.
Hisao Katto
G11 - INFORMATION STORAGE
Information
Patent Grant
Semiconductor integrated circuit device having output and internal...
Patent number
5,534,723
Issue date
Jul 9, 1996
Hitachi, Ltd.
Hidetoshi Iwai
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Semiconductor integrated circuit device having a first MISFET of an...
Patent number
5,436,483
Issue date
Jul 25, 1995
Hitachi, Ltd.
Hidetoshi Iwai
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Semiconductor integrated circuit device having input protective ele...
Patent number
5,436,484
Issue date
Jul 25, 1995
Hitachi, Ltd.
Hidetoshi Iwai
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Semiconductor memory device with additional conductive line to prev...
Patent number
5,416,347
Issue date
May 16, 1995
Hitachi, Ltd.
Hisao Katto
G11 - INFORMATION STORAGE
Information
Patent Grant
Method of producing semiconductor memory device
Patent number
5,286,666
Issue date
Feb 15, 1994
Hitachi, Ltd.
Hisao Katto
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Semiconductor integrated circuit device having protective/output el...
Patent number
5,276,346
Issue date
Jan 4, 1994
Hitachi, Ltd.
Hidetoshi Iwai
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Method of producing semiconductor memory device with buried barrier...
Patent number
5,116,775
Issue date
May 26, 1992
Hitachi, Ltd.
Hisao Katto
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Method of making a read only memory device
Patent number
4,904,615
Issue date
Feb 27, 1990
Hitachi, Ltd.
Kousuke Okuyama
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Method of making a semiconductor memory device
Patent number
4,830,977
Issue date
May 16, 1989
Hitachi, Ltd.
Hisao Katto
G11 - INFORMATION STORAGE
Information
Patent Grant
Semiconductor device and manufacturing method thereof
Patent number
4,818,716
Issue date
Apr 4, 1989
Hitachi Ltd.
Kousuke Okuyama
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Semiconductor memory device with means to prevent word line breakage
Patent number
4,731,642
Issue date
Mar 15, 1988
Hitachi, Ltd.
Hisao Katto
G11 - INFORMATION STORAGE
Information
Patent Grant
Semiconductor integrated circuit device
Patent number
4,717,684
Issue date
Jan 5, 1988
Hitachi, Ltd.
Hisao Katto
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Semiconductor memory device
Patent number
4,652,897
Issue date
Mar 24, 1987
Hitachi, Ltd.
Kousuke Okuyama
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Semiconductor device
Patent number
4,377,819
Issue date
Mar 22, 1983
Hitachi, Ltd.
Yoshio Sakai
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
High-voltage circuit for insulated gate field-effect transistor
Patent number
4,317,055
Issue date
Feb 23, 1982
Hitachi, Ltd.
Isao Yoshida
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Method for producing a nonvolatile semiconductor memory
Patent number
4,295,265
Issue date
Oct 20, 1981
Hitachi, Ltd.
Masatada Horiuchi
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Semiconductor device having a discharge-formed insulating film
Patent number
4,121,240
Issue date
Oct 17, 1978
Hitachi, Ltd.
Hisao Katto
H01 - BASIC ELECTRIC ELEMENTS