Hiromi Kawashima

Person

Yokohama, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Nonvolatile semiconductor memory device having electrically and col...
- Patent number 6,611,464
- Issue date Aug 26, 2003
- Fujitsu Limited
- Takao Akaogi
- G11 - INFORMATION STORAGE
Information Patent Grant
Nonvolatile semiconductor memory device having electrically and col...
- Patent number 6,563,738
- Issue date May 13, 2003
- Fujitsu Limited
- Takao Akaogi
- G11 - INFORMATION STORAGE
Information Patent Grant
Nonvolatile semiconductor memory device having electrically and col...
- Patent number 6,288,945
- Issue date Sep 11, 2001
- Fujitsu Limited
- Hiromi Kawashima
- G11 - INFORMATION STORAGE
Information Patent Grant
Semiconductor memory device with electrically controllable threshol...
- Patent number 5,815,440
- Issue date Sep 29, 1998
- Fujitsu Limited
- Takao Akaogi
- G11 - INFORMATION STORAGE
Information Patent Grant
Flash memory with improved erasability and its circuitry
- Patent number 5,770,963
- Issue date Jun 23, 1998
- Fujitsu Limited
- Takao Akaogi
- G05 - CONTROLLING REGULATING
Information Patent Grant
Semiconductor memory device for selecting and deselecting blocks of...
- Patent number 5,666,314
- Issue date Sep 9, 1997
- Fujitsu Limited
- Takao Akaogi
- G11 - INFORMATION STORAGE
Information Patent Grant
Negative voltage circuit for a flash memory
- Patent number 5,631,597
- Issue date May 20, 1997
- Fujitsu Limited
- Takao Akaogi
- G05 - CONTROLLING REGULATING
Information Patent Grant
Flash memory with improved erasability and its circuitry
- Patent number 5,608,670
- Issue date Mar 4, 1997
- Fujitsu Limited
- Takao Akaogi
- G05 - CONTROLLING REGULATING
Information Patent Grant
Flash memory with improved erasability and its circuitry
- Patent number 5,592,419
- Issue date Jan 7, 1997
- Fujitsu Limited
- Takao Akaogi
- G05 - CONTROLLING REGULATING
Information Patent Grant
XOR CMOS logic gate
- Patent number 5,576,637
- Issue date Nov 19, 1996
- Fujitsu Limited
- Takao Akaogi
- G05 - CONTROLLING REGULATING
Information Patent Grant
Semiconductor memory device for selecting and deselecting blocks of...
- Patent number 5,452,251
- Issue date Sep 19, 1995
- Fujitsu Limited
- Takao Akaogi
- G11 - INFORMATION STORAGE
Information Patent Grant
Nonvolatile semiconductor memory having an address-transition-detec...
- Patent number 5,428,580
- Issue date Jun 27, 1995
- Fujitsu Limited
- Hiromi Kawashima
- G11 - INFORMATION STORAGE
Information Patent Grant
Semiconductor memory device having non-volatile and volatile memory...
- Patent number 5,249,156
- Issue date Sep 28, 1993
- Fujitsu Limited
- Ryoji Hagiwara
- G11 - INFORMATION STORAGE
Information Patent Grant
Electrically erasable and programmable non-volatile semiconductor m...
- Patent number 5,173,876
- Issue date Dec 22, 1992
- Fujitsu Limited
- Hiromi Kawashima
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Semiconductor circuit
- Patent number 5,111,136
- Issue date May 5, 1992
- Fujitsu Limited
- Hiromi Kawashima
- G01 - MEASURING TESTING
Information Patent Grant
Semiconductor memory device having function of checking and correct...
- Patent number 4,937,830
- Issue date Jun 26, 1990
- Fujitsu Limited
- Hiromi Kawashima
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Semiconductor memory circuit including bias voltage generator
- Patent number 4,817,055
- Issue date Mar 28, 1989
- Fujitsu Limited
- Hideki Arakawa
- G05 - CONTROLLING REGULATING
Information Patent Grant
High voltage detecting circuit
- Patent number 4,812,680
- Issue date Mar 14, 1989
- Fujitsu Limited
- Hiromi Kawashima
- G01 - MEASURING TESTING
Information Patent Grant
Semiconductor device having fuse circuit and detecting circuit for...
- Patent number 4,773,046
- Issue date Sep 20, 1988
- Fujitsu Limited
- Takao Akaogi
- G11 - INFORMATION STORAGE
Information Patent Grant
Semiconductor programmable memory device and method of writing a pr...
- Patent number 4,744,058
- Issue date May 10, 1988
- Fujitsu Limited
- Hiromi Kawashima
- G11 - INFORMATION STORAGE
Information Patent Grant
Delay circuit having delay time period determined by discharging op...
- Patent number 4,644,182
- Issue date Feb 17, 1987
- Fujitsu Limited
- Hiromi Kawashima
- G11 - INFORMATION STORAGE
Information Patent Grant
Semiconductor memory device
- Patent number 4,601,020
- Issue date Jul 15, 1986
- Fujitsu Limited
- Hideki Arakawa
- G11 - INFORMATION STORAGE
Information Patent Grant
Semiconductor timer
- Patent number 4,584,494
- Issue date Apr 22, 1986
- Fujitsu Limited
- Hideki Arakawa
- H03 - BASIC ELECTRONIC CIRCUITRY

Patents Applicationslast 30 patents

Information Patent Application
Nonvolatile semiconductor memory device having electrically and col...
- Publication number 20030198083
- Publication date Oct 23, 2003
- FUJITSU LIMITED
- Takao Akaogi
- G11 - INFORMATION STORAGE
Information Patent Application
Nonvolatile semiconductor memory device having electrically and col...
- Publication number 20030039139
- Publication date Feb 27, 2003
- FUJITSU LIMITED
- Takao Akaogi
- G11 - INFORMATION STORAGE
Information Patent Application
Nonvolatile semiconductor memory device having electrically and col...
- Publication number 20020136057
- Publication date Sep 26, 2002
- FUJITSU LIMITED
- Takao Akaogi
- G11 - INFORMATION STORAGE
Information Patent Application
Nonvolatile semiconductor memory device having electrically and col...
- Publication number 20010015932
- Publication date Aug 23, 2001
- FUJITSU LIMITED
- Takao Akaogi
- G11 - INFORMATION STORAGE

Hiromi Kawashima

Person

Patents Grantslast 30 patents

Nonvolatile semiconductor memory device having electrically and col...

Nonvolatile semiconductor memory device having electrically and col...

Nonvolatile semiconductor memory device having electrically and col...

Semiconductor memory device with electrically controllable threshol...

Flash memory with improved erasability and its circuitry

Semiconductor memory device for selecting and deselecting blocks of...

Negative voltage circuit for a flash memory

Flash memory with improved erasability and its circuitry

Flash memory with improved erasability and its circuitry

XOR CMOS logic gate

Semiconductor memory device for selecting and deselecting blocks of...

Nonvolatile semiconductor memory having an address-transition-detec...

Semiconductor memory device having non-volatile and volatile memory...

Electrically erasable and programmable non-volatile semiconductor m...

Semiconductor circuit

Semiconductor memory device having function of checking and correct...

Semiconductor memory circuit including bias voltage generator

High voltage detecting circuit

Semiconductor device having fuse circuit and detecting circuit for...

Semiconductor programmable memory device and method of writing a pr...

Delay circuit having delay time period determined by discharging op...

Semiconductor memory device

Semiconductor timer

Patents Applicationslast 30 patents

Nonvolatile semiconductor memory device having electrically and col...

Nonvolatile semiconductor memory device having electrically and col...

Nonvolatile semiconductor memory device having electrically and col...

Nonvolatile semiconductor memory device having electrically and col...