Takashi Yamada

Person

Sayama, JP

People

Patents Grantslast 30 patents

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
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
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
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
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
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
Information Patent Grant
Input circuit for portable electronic devices
- Patent number 4,198,579
- Issue date Apr 15, 1980
- Citizen Watch Co., Ltd.
- Heihachiro Ebihara
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Electronic timepiece with calendar function
- Patent number 4,193,255
- Issue date Mar 18, 1980
- Citizen Watch Co., Ltd.
- Heihachiro Ebihara
- G04 - HOROLOGY
Information Patent Grant
Portable electronic device
- Patent number 4,192,135
- Issue date Mar 11, 1980
- Citizen Watch Company Limited
- Heihachiro Ebihara
- G04 - HOROLOGY
Information Patent Grant
Zero suppressing system for electronic device
- Patent number 4,190,892
- Issue date Feb 26, 1980
- Citizen Watch Co., Ltd.
- Heihachiro Ebihara
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Miniature type electronic device
- Patent number 4,157,588
- Issue date Jun 5, 1979
- Citizen Watch Co. Ltd.
- Heihachiro Ebihara
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Digital display timepiece
- Patent number 4,142,362
- Issue date Mar 6, 1979
- Citizen Watch Co. Ltd.
- Heihachiro Ebihara
- G04 - HOROLOGY
Information Patent Grant
Shift register with reduced number of components
- Patent number 4,101,790
- Issue date Jul 18, 1978
- Citizen Watch Company Limited
- Heichachiro Ebihara
- G11 - INFORMATION STORAGE

Takashi Yamada

Person

Patents Grantslast 30 patents

Electronic timepiece

Portable electronic device equipped with calculation and timekeepin...

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

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

Portable electronic device

Electronic timepiece

Time correction system for an electronic timepiece

Portable timepiece calculator with power savings feature

Drive system for liquid crystal display device

Data transfer circuit

Portable electronic device equipped with timekeeping and calculatio...

Input circuit for portable electronic devices

Electronic timepiece with calendar function

Portable electronic device

Zero suppressing system for electronic device

Miniature type electronic device

Digital display timepiece

Shift register with reduced number of components