Fukuo Sekiya

Person

Tokorozawa, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Driver circuit for matrix type display device
- Patent number 4,785,297
- Issue date Nov 15, 1988
- Citizen Watch Company Limited
- Fukuo Sekiya
- G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
Information Patent Grant
Drive circuit for matrix display device
- Patent number 4,746,915
- Issue date May 24, 1988
- Citizen Watch Company Limited
- Fukuo Sekiya
- G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
Information Patent Grant
Liquid crystal matrix display panel drive method
- Patent number 4,645,303
- Issue date Feb 24, 1987
- Citizen Watch Co., Ltd.
- Fukuo Sekiya
- G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
Information Patent Grant
Row conductor scanning drive circuit for matrix display panel
- Patent number 4,633,242
- Issue date Dec 30, 1986
- Citizen Watch Company Limited
- Fukuo Sekiya
- G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
Information Patent Grant
Non-volatile memory circuit for portable electronic devices
- Patent number 4,475,180
- Issue date Oct 2, 1984
- Citizen Watch Co., Ltd.
- Fukuo Sekiya
- G11 - INFORMATION STORAGE
Information Patent Grant
Analog display electronic timepiece with multi-mode display capability
- Patent number 4,433,918
- Issue date Feb 28, 1984
- Citizen Watch Company Limited
- Katsuo Nishimura
- G04 - HOROLOGY
Information Patent Grant
Electronic timepiece having improved primary frequency divider resp...
- Patent number 4,433,920
- Issue date Feb 28, 1984
- Citizen Watch Company Limited
- Fukuo Sekiya
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Electronic timepiece
- Patent number 4,308,607
- Issue date Dec 29, 1981
- Citizen Watch Company Limited
- Fukuo Sekiya
- G04 - HOROLOGY
Information Patent Grant
Electronic timepiece
- Patent number 4,306,302
- Issue date Dec 15, 1981
- Citizen Watch Company Limited
- Fukuo Sekiya
- G04 - HOROLOGY
Information Patent Grant
Electronic timepiece
- Patent number 4,302,829
- Issue date Nov 24, 1981
- Citizen Watch Company Limited
- Shigeru Morokawa
- G04 - HOROLOGY
Information Patent Grant
Electronic timepiece
- Patent number 4,302,828
- Issue date Nov 24, 1981
- Citizen Watch Company Limited
- Shigeru Morokawa
- G04 - HOROLOGY
Information Patent Grant
Electronic timepiece
- Patent number 4,292,680
- Issue date Sep 29, 1981
- Citizen Watch Company Limited
- Shigeru Morokawa
- G04 - HOROLOGY
Information Patent Grant
Electronic timepiece
- Patent number 4,277,840
- Issue date Jul 7, 1981
- Citizen Watch Co., Ltd.
- Fukuo Sekiya
- G04 - HOROLOGY
Information Patent Grant
Electronic alarm timepiece
- Patent number 4,270,194
- Issue date May 26, 1981
- Citizen Watch Company Limited
- Shigeru Morokawa
- G04 - HOROLOGY
Information Patent Grant
Portable electronic device equipped with calculation and timekeepin...
- Patent number 4,266,278
- Issue date May 5, 1981
- Citizen Watch Co., Ltd.
- Heihachiro Ebihara
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Electronic timepiece
- Patent number 4,262,351
- Issue date Apr 14, 1981
- Citizen Watch Company Limited
- Shigeru Morokawa
- G04 - HOROLOGY
Information Patent Grant
System for signalling the termination of the lifetime of a battery...
- Patent number 4,262,349
- Issue date Apr 14, 1981
- Citizen Watch Co., Ltd.
- Fukuo Sekiya
- G04 - HOROLOGY
Information Patent Grant
Electronic timepiece having an analog display device and a digital...
- Patent number 4,258,431
- Issue date Mar 24, 1981
- Citizen Watch Co., Ltd.
- Fukuo Sekiya
- G04 - HOROLOGY
Information Patent Grant
Electronic timepiece
- Patent number 4,257,114
- Issue date Mar 17, 1981
- Citizen Watch Co., Ltd.
- Fukuo Sekiya
- G04 - HOROLOGY
Information Patent Grant
Portable electronic device
- Patent number 4,250,571
- Issue date Feb 10, 1981
- Citizen Watch Company Limited
- Heihachiro Ebihara
- G04 - HOROLOGY
Information Patent Grant
Electronic timepiece
- Patent number 4,246,602
- Issue date Jan 20, 1981
- Citizen Watch Company Limited
- Fukuo Sekiya
- G04 - HOROLOGY
Information Patent Grant
Time correction system for an electronic timepiece
- Patent number 4,245,338
- Issue date Jan 13, 1981
- Citizen Watch Company Limited
- Fukuo Sekiya
- G04 - HOROLOGY
Information Patent Grant
Frequency division system
- Patent number 4,244,043
- Issue date Jan 6, 1981
- Citizen Watch Co., Ltd.
- Hiro Fujita
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Portable timepiece calculator with power savings feature
- Patent number 4,240,150
- Issue date Dec 16, 1980
- Citizen Watch Co., Ltd.
- Heihachiro Ebihara
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Temperature sensing circuit
- Patent number 4,237,420
- Issue date Dec 2, 1980
- Citizen Watch Company Limited
- Heihachiro Ebihara
- G01 - MEASURING TESTING
Information Patent Grant
Electronic timepiece
- Patent number 4,236,241
- Issue date Nov 25, 1980
- Citizen Watch Company Limited
- Shigeru Morokawa
- G04 - HOROLOGY
Information Patent Grant
Transistor circuit having a plurality of CMOS circuits
- Patent number 4,229,668
- Issue date Oct 21, 1980
- Citizen Watch Co., Ltd.
- Heihachiro Ebihara
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Drive system for liquid crystal display device
- Patent number 4,227,192
- Issue date Oct 7, 1980
- Citizen Watch Co., Ltd.
- Heihachiro Ebihara
- G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
Information Patent Grant
Data transfer circuit
- Patent number 4,224,531
- Issue date Sep 23, 1980
- Citizen Watch Co., Ltd.
- Heihachiro Ebihara
- G11 - INFORMATION STORAGE
Information Patent Grant
Portable electronic device equipped with timekeeping and calculatio...
- Patent number 4,217,654
- Issue date Aug 12, 1980
- Citizen Watch Company Limited
- Heihachiro Ebihara
- G04 - HOROLOGY

Fukuo Sekiya

Person

Patents Grantslast 30 patents

Driver circuit for matrix type display device

Drive circuit for matrix display device

Liquid crystal matrix display panel drive method

Row conductor scanning drive circuit for matrix display panel

Non-volatile memory circuit for portable electronic devices

Analog display electronic timepiece with multi-mode display capability

Electronic timepiece having improved primary frequency divider resp...

Electronic timepiece

Electronic timepiece

Electronic timepiece

Electronic timepiece

Electronic timepiece

Electronic timepiece

Electronic alarm timepiece

Portable electronic device equipped with calculation and timekeepin...

Electronic timepiece

System for signalling the termination of the lifetime of a battery...

Electronic timepiece having an analog display device and a digital...

Electronic timepiece

Portable electronic device

Electronic timepiece

Time correction system for an electronic timepiece

Frequency division system

Portable timepiece calculator with power savings feature

Temperature sensing circuit

Electronic timepiece

Transistor circuit having a plurality of CMOS circuits

Drive system for liquid crystal display device

Data transfer circuit

Portable electronic device equipped with timekeeping and calculatio...