Takaaki Hagiwara

Person

Hinode, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Method of making an EPROM with peripheral transistor
- Patent number 5,604,142
- Issue date Feb 18, 1997
- Hitachi, Ltd.
- Kazuhiro Komori
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Method of manufacturing a semiconductor device
- Patent number 5,472,891
- Issue date Dec 5, 1995
- Hitachi, Ltd.
- Kazuhiro Komori
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Method of manufacturing EEPROM memory device
- Patent number 5,340,760
- Issue date Aug 23, 1994
- Kazuhiro Komori
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Semiconductor memory device
- Patent number 5,189,497
- Issue date Feb 23, 1993
- Hitachi, Ltd.
- Kazuhiro Komori
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Nonvolatile semiconductor memory device
- Patent number 5,097,446
- Issue date Mar 17, 1992
- Hitachi, Ltd.
- Kazuyoshi Shoji
- G11 - INFORMATION STORAGE
Information Patent Grant
Semiconductor memory device
- Patent number 5,079,603
- Issue date Jan 7, 1992
- Hitachi, Ltd.
- Kazuhiro Komori
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Semiconductor memory device
- Patent number 4,972,371
- Issue date Nov 20, 1990
- Hitachi, Ltd.
- Kazuhiro Komori
- G11 - INFORMATION STORAGE
Information Patent Grant
Semiconductor device
- Patent number 4,668,970
- Issue date May 26, 1987
- Hitachi, Ltd.
- Yuji Yatsuda
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Electrically erasable programmable RAM
- Patent number 4,656,607
- Issue date Apr 7, 1987
- Hitachi, Ltd.
- Takaaki Hagiwara
- G11 - INFORMATION STORAGE
Information Patent Grant
Nonvolatile semiconductor memory
- Patent number 4,654,828
- Issue date Mar 31, 1987
- Hitachi, Ltd.
- Takaaki Hagiwara
- G11 - INFORMATION STORAGE
Information Patent Grant
Stacked semiconductor memory
- Patent number 4,633,438
- Issue date Dec 30, 1986
- Hitachi, Ltd.
- Hitoshi Kume
- G11 - INFORMATION STORAGE
Information Patent Grant
Defect-remediable semiconductor integrated circuit memory and spare...
- Patent number 4,514,830
- Issue date Apr 30, 1985
- Hitachi, Ltd.
- Takaaki Hagiwara
- G11 - INFORMATION STORAGE
Information Patent Grant
Nonvolatile MNOS semiconductor memory
- Patent number 4,460,980
- Issue date Jul 17, 1984
- Hitachi, Ltd.
- Takaaki Hagiwara
- G11 - INFORMATION STORAGE
Information Patent Grant
Nonvolatile semiconductor memory with stabilized level shift circuit
- Patent number 4,443,718
- Issue date Apr 17, 1984
- Hitachi, Ltd.
- Takaaki Hagiwara
- G11 - INFORMATION STORAGE
Information Patent Grant
Memory driving method
- Patent number 4,308,596
- Issue date Dec 29, 1981
- Hitachi, Ltd.
- Atsushi Takai
- G11 - INFORMATION STORAGE
Information Patent Grant
Method for producing a nonvolatile memory device
- Patent number 4,264,376
- Issue date Apr 28, 1981
- Hitachi, Ltd.
- Yuji Yatsuda
- G11 - INFORMATION STORAGE

Takaaki Hagiwara

Person

Patents Grantslast 30 patents

Method of making an EPROM with peripheral transistor

Method of manufacturing a semiconductor device

Method of manufacturing EEPROM memory device

Semiconductor memory device

Nonvolatile semiconductor memory device

Semiconductor memory device

Semiconductor memory device

Semiconductor device

Electrically erasable programmable RAM

Nonvolatile semiconductor memory

Stacked semiconductor memory

Defect-remediable semiconductor integrated circuit memory and spare...

Nonvolatile MNOS semiconductor memory

Nonvolatile semiconductor memory with stabilized level shift circuit

Memory driving method

Method for producing a nonvolatile memory device