Kazumasa Hasegawa

Person

Nagano-ken, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Semiconductor memory device and method for manufacturing the same
- Patent number 7,244,979
- Issue date Jul 17, 2007
- Seiko Epson Corporation
- Yukihiro Iwasaki
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Crosspoint-type ferroelectric memory
- Patent number 7,184,293
- Issue date Feb 27, 2007
- Seiko Epson Corporation
- Kazumasa Hasegawa
- G11 - INFORMATION STORAGE
Information Patent Grant
Piezoelectric transducer and electrophoretic ink display apparatus...
- Patent number 7,173,602
- Issue date Feb 6, 2007
- Seiko Epson Corporation
- Kazumasa Hasegawa
- B06 - GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS IN GENERAL
Information Patent Grant
Ferroelectric memory device
- Patent number 7,169,621
- Issue date Jan 30, 2007
- Seiko Epson Corporation
- Kazumasa Hasegawa
- G11 - INFORMATION STORAGE
Information Patent Grant
Memory cell array including ferroelectric capacitors, method for ma...
- Patent number 6,930,340
- Issue date Aug 16, 2005
- Seiko Epson Corporation
- Kazumasa Hasegawa
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Ferroelectric memory and electronic apparatus
- Patent number 6,930,339
- Issue date Aug 16, 2005
- Seiko Epson Corporation
- Takamitsu Higuchi
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Memory cell array having ferroelectric capacity, method of manufact...
- Patent number 6,913,937
- Issue date Jul 5, 2005
- Seiko Epson Corporation
- Eiji Natori
- G11 - INFORMATION STORAGE
Information Patent Grant
Ferroelectric memory device
- Patent number 6,891,741
- Issue date May 10, 2005
- Seiko Epson Corporation
- Kazumasa Hasegawa
- G11 - INFORMATION STORAGE
Information Patent Grant
Piezoelectric transducer and electrophoretic ink display apparatus...
- Patent number 6,842,166
- Issue date Jan 11, 2005
- Seiko Epson Corporation
- Kazumasa Hasegawa
- B06 - GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS IN GENERAL
Information Patent Grant
Ferroelectric memory device and method of manufacturing the same
- Patent number 6,791,863
- Issue date Sep 14, 2004
- Seiko Epson Corporation
- Koichi Oguchi
- G11 - INFORMATION STORAGE
Information Patent Grant
Ferroelectronic memory and electronic apparatus
- Patent number 6,737,690
- Issue date May 18, 2004
- Seiko Epson Corporation
- Takamitsu Higuchi
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Ferroelectric memory device
- Patent number 6,727,536
- Issue date Apr 27, 2004
- Seiko Epson Corporation
- Kazumasa Hasegawa
- G11 - INFORMATION STORAGE
Information Patent Grant
Ferroelectric memory device and method of operating memory cell inc...
- Patent number 6,717,837
- Issue date Apr 6, 2004
- Seiko Epson Corporation
- Kazumasa Hasegawa
- G11 - INFORMATION STORAGE
Information Patent Grant
Ferroelectric memory device and method of manufacturing the same
- Patent number 6,690,598
- Issue date Feb 10, 2004
- Seiko Epson Corporation
- Koichi Oguchi
- G11 - INFORMATION STORAGE
Information Patent Grant
Ferroelectric memory device
- Patent number 6,690,599
- Issue date Feb 10, 2004
- Seiko Epson Corporation
- Kazumasa Hasegawa
- G11 - INFORMATION STORAGE
Information Patent Grant
Ferroelectric memory device and method of driving the same
- Patent number 6,639,823
- Issue date Oct 28, 2003
- Seiko Epson Corporation
- Kazumasa Hasegawa
- G11 - INFORMATION STORAGE
Information Patent Grant
Memory cell array having ferroelectric capacitors, method of fabric...
- Patent number 6,617,627
- Issue date Sep 9, 2003
- Seiko Epson Corporation
- Eiji Natori
- G11 - INFORMATION STORAGE
Information Patent Grant
Method of forming oxide-ceramics film
- Patent number 6,455,106
- Issue date Sep 24, 2002
- Seiko Epson Corporation
- Hong Qiu
- C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information Patent Grant
Piezoelectric transducer and electrophoretic ink display apparatus...
- Patent number 6,373,461
- Issue date Apr 16, 2002
- Seiko Epson Corporation
- Kazumasa Hasegawa
- B06 - GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS IN GENERAL
Information Patent Grant
Production method for forming liquid spray head
- Patent number 6,345,424
- Issue date Feb 12, 2002
- Seiko Epson Corporation
- Kazumasa Hasegawa
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Liquid jet recording head and manufacturing method therefor, and li...
- Patent number 6,276,781
- Issue date Aug 21, 2001
- Seiko Epson Corporation
- Kazumasa Hasegawa
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Printer head for ink jet recording
- Patent number 5,933,167
- Issue date Aug 3, 1999
- Seiko Epson Corporation
- Masato Shimada
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Process for the preparation of an ink jet printer head
- Patent number 5,802,686
- Issue date Sep 8, 1998
- Seiko Epson Corporation
- Masato Shimada
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Liquid jet head
- Patent number 5,719,607
- Issue date Feb 17, 1998
- Seiko Epson Corporation
- Kazumasa Hasegawa
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Liquid spray head and its production method
- Patent number 5,530,465
- Issue date Jun 25, 1996
- Seiko Epson Corporation
- Kazumasa Hasegawa
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS

Patents Applicationslast 30 patents

Information Patent Application
Semiconductor memory device and method for manufacturing the same
- Publication number 20060138506
- Publication date Jun 29, 2006
- Seiko Epson Corporation
- Yukihiro Iwasaki
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
Crosspoint-type ferroelectric memory
- Publication number 20050117431
- Publication date Jun 2, 2005
- Kazumasa Hasegawa
- G11 - INFORMATION STORAGE
Information Patent Application
Piezoelectric transducer and electrophoretic ink display apparatus...
- Publication number 20040174097
- Publication date Sep 9, 2004
- Kazumasa Hasegawa
- B06 - GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS IN GENERAL
Information Patent Application
Memory cell array including ferroelectric capacitors, method for ma...
- Publication number 20040173827
- Publication date Sep 9, 2004
- SEIKO EPSON CORPORATION
- Kazumasa Hasegawa
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
Ferroelectric memory device
- Publication number 20040161887
- Publication date Aug 19, 2004
- SEIKO EPSON CORPORATION
- Kazumasa Hasegawa
- G11 - INFORMATION STORAGE
Information Patent Application
FERROELECTRIC MEMORY DEVICE AND METHOD OF MANUFACTURING
- Publication number 20040109341
- Publication date Jun 10, 2004
- SEIKO EPSON CORPORATION
- Koichi Oguchi
- G11 - INFORMATION STORAGE
Information Patent Application
Ferroelectric memory device
- Publication number 20040022090
- Publication date Feb 5, 2004
- SEIKO EPSON CORPORATION
- Kazumasa Hasegawa
- G11 - INFORMATION STORAGE
Information Patent Application
Memory cell array having ferroelectric capacity, method of manufact...
- Publication number 20040014247
- Publication date Jan 22, 2004
- SEIKO EPSON CORPORATION
- Eiji Natori
- G11 - INFORMATION STORAGE
Information Patent Application
Ferroelectric memory device
- Publication number 20020159306
- Publication date Oct 31, 2002
- SEIKO EPSON CORPORATION
- Kazumasa Hasegawa
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
Ferroelectric memory device and method of operating memory cell inc...
- Publication number 20020159307
- Publication date Oct 31, 2002
- SEIKO EPSON CORPORATION
- Kazumasa Hasegawa
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
Ferroelectric memory and electronic apparatus
- Publication number 20020155667
- Publication date Oct 24, 2002
- Takamitsu Higuchi
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
Ferroelectric memory and electronic apparatus
- Publication number 20020155666
- Publication date Oct 24, 2002
- Takamitsu Higuchi
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
Ferroelectric memory device and method of driving the same
- Publication number 20020145903
- Publication date Oct 10, 2002
- SEIKO EPSON CORPORATION
- Kazumasa Hasegawa
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
Ferroelectric memory device, method of manufacuring the same, and e...
- Publication number 20020036934
- Publication date Mar 28, 2002
- SEIKO EPSON CORPORATION
- Kazumasa Hasegawa
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
Memory cell array having ferroelectric capacitors, method of fabric...
- Publication number 20020031005
- Publication date Mar 14, 2002
- SEIKO EPSON CORPORATION
- Eiji Natori
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
Ferroelectric memory device and method of manufacturing the same
- Publication number 20020018357
- Publication date Feb 14, 2002
- SEIKO EPSON CORPORATION
- Koichi Oguchi
- G11 - INFORMATION STORAGE
Information Patent Application
Ferroelectric memory and method of fabricating the same
- Publication number 20020017667
- Publication date Feb 14, 2002
- SEIKO EPSON CORPORATION
- Tatsuya Shimoda
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
Piezoelectric transducer and electrophoretic ink display apparatus...
- Publication number 20020011986
- Publication date Jan 31, 2002
- Kazumasa Hasegawa
- G02 - OPTICS

Kazumasa Hasegawa

Person

Patents Grantslast 30 patents

Semiconductor memory device and method for manufacturing the same

Crosspoint-type ferroelectric memory

Piezoelectric transducer and electrophoretic ink display apparatus...

Ferroelectric memory device

Memory cell array including ferroelectric capacitors, method for ma...

Ferroelectric memory and electronic apparatus

Memory cell array having ferroelectric capacity, method of manufact...

Ferroelectric memory device

Piezoelectric transducer and electrophoretic ink display apparatus...

Ferroelectric memory device and method of manufacturing the same

Ferroelectronic memory and electronic apparatus

Ferroelectric memory device

Ferroelectric memory device and method of operating memory cell inc...

Ferroelectric memory device and method of manufacturing the same

Ferroelectric memory device

Ferroelectric memory device and method of driving the same

Memory cell array having ferroelectric capacitors, method of fabric...

Method of forming oxide-ceramics film

Piezoelectric transducer and electrophoretic ink display apparatus...

Production method for forming liquid spray head

Liquid jet recording head and manufacturing method therefor, and li...

Printer head for ink jet recording

Process for the preparation of an ink jet printer head

Liquid jet head

Liquid spray head and its production method

Patents Applicationslast 30 patents

Semiconductor memory device and method for manufacturing the same

Crosspoint-type ferroelectric memory

Piezoelectric transducer and electrophoretic ink display apparatus...

Memory cell array including ferroelectric capacitors, method for ma...

Ferroelectric memory device

FERROELECTRIC MEMORY DEVICE AND METHOD OF MANUFACTURING

Ferroelectric memory device

Memory cell array having ferroelectric capacity, method of manufact...

Ferroelectric memory device

Ferroelectric memory device and method of operating memory cell inc...

Ferroelectric memory and electronic apparatus

Ferroelectric memory and electronic apparatus

Ferroelectric memory device and method of driving the same

Ferroelectric memory device, method of manufacuring the same, and e...

Memory cell array having ferroelectric capacitors, method of fabric...

Ferroelectric memory device and method of manufacturing the same

Ferroelectric memory and method of fabricating the same

Piezoelectric transducer and electrophoretic ink display apparatus...