Shigeru Morokawa

Person

Tokyo, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Electric timepiece
- Patent number 7,436,737
- Issue date Oct 14, 2008
- Citizen Holdings Co., Ltd.
- Masami Fukuda
- G01 - MEASURING TESTING
Information Patent Grant
Concentration measuring instrument
- Patent number 7,084,976
- Issue date Aug 1, 2006
- Citizen Watch Co., Ltd.
- Shigeru Morokawa
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information Patent Grant
Power supply circuit for driving liquid crystal display device
- Patent number 6,999,058
- Issue date Feb 14, 2006
- Citizen Watch Co., Ltd.
- Takakazu Yano
- G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
Information Patent Grant
Timer of electric timepiece
- Patent number 6,894,952
- Issue date May 17, 2005
- Citizen Watch Co., Ltd.
- Shigeru Morokawa
- G04 - HOROLOGY
Information Patent Grant
Ultrabroad-band variable-wavelength wavelength-multiplexed pulse wa...
- Patent number 6,826,209
- Issue date Nov 30, 2004
- Japan Science and Technology Corporation
- Ryuji Morita
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Semiconductor device
- Patent number 6,583,506
- Issue date Jun 24, 2003
- Citizen Watch Co., Ltd.
- Takakazu Yano
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Liquid crystal display apparatus
- Patent number 6,515,645
- Issue date Feb 4, 2003
- Citizen Watch Co., Ltd.
- Takakazu Yano
- G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
Information Patent Grant
Electronic timepiece
- Patent number 6,301,198
- Issue date Oct 9, 2001
- Citizen Watch Co., Ltd.
- Yukio Otaka
- G04 - HOROLOGY
Information Patent Grant
Liquid crystal display device
- Patent number 6,023,252
- Issue date Feb 8, 2000
- Citizen Watch Co., Ltd.
- Takakazu Yano
- G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
Information Patent Grant
Optical device containing a liquid crystal element for changing opt...
- Patent number 5,815,233
- Issue date Sep 29, 1998
- Citizen Watch Co., Ltd.
- Shigeru Morokawa
- G02 - OPTICS
Information Patent Grant
Liquid crystal optical modulator device with each electrode width s...
- Patent number 5,654,782
- Issue date Aug 5, 1997
- Citizen Watch Co., Ltd.
- Shigeru Morokawa
- G02 - OPTICS
Information Patent Grant
Multi-level voltage generator to drive LCD
- Patent number 5,101,116
- Issue date Mar 31, 1992
- Citizen Watch Co., Ltd.
- Shigeru Morokawa
- G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
Information Patent Grant
Selecting electrode drive circuit for a matrix liquid crystal display
- Patent number 4,843,252
- Issue date Jun 27, 1989
- Citizen Watch Co., Ltd.
- Shigeru Morokawa
- G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
Information Patent Grant
Liquid crystal display having opaque portions on the electrodes
- Patent number 4,824,213
- Issue date Apr 25, 1989
- Citizen Watch Co., Ltd.
- Shigeru Morokawa
- G02 - OPTICS
Information Patent Grant
Method of driving liquid crystal matrix display
- Patent number 4,679,043
- Issue date Jul 7, 1987
- Citizen Watch Company Limited
- Shigeru Morokawa
- G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
Information Patent Grant
Television receiver having a liquid crystal display device
- Patent number 4,663,670
- Issue date May 5, 1987
- Citizen Watch Co., Ltd.
- Katsu Ito
- G02 - OPTICS
Information Patent Grant
Television receiver with liquid crystal matrix display panel
- Patent number 4,630,122
- Issue date Dec 16, 1986
- Citizen Watch Co., Ltd.
- Shigeru Morokawa
- G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
Information Patent Grant
Driving system for matrix display device
- Patent number 4,602,292
- Issue date Jul 22, 1986
- Citizen Watch Co., Ltd.
- Seigo Togashi
- G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
Information Patent Grant
Image pickup system
- Patent number 4,581,649
- Issue date Apr 8, 1986
- Citizen Watch Co., Ltd.
- Shigeru Morokawa
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Matrix driving method for electro-optical display device
- Patent number 4,465,999
- Issue date Aug 14, 1984
- Citizen Watch Company Limited
- Akira Tsuzuki
- G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
Information Patent Grant
Electronic timepiece with temperature compensation
- Patent number 4,453,834
- Issue date Jun 12, 1984
- Citizen Watch Company Limited
- Fuminori Suzuki
- G04 - HOROLOGY
Information Patent Grant
Electronic timepiece
- Patent number 4,441,826
- Issue date Apr 10, 1984
- Citizen Watch Company Limited
- Shigeru Morokawa
- G05 - CONTROLLING REGULATING
Information Patent Grant
Low-power integrated circuit for an electronic timepiece
- Patent number 4,441,825
- Issue date Apr 10, 1984
- Citizen Watch Co., Ltd.
- Shigeru Morokawa
- 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 RE31402
- Issue date Oct 4, 1983
- Citizen Watch Co., Ltd.
- Yukio Hashimoto
- 368 - Horology: time measuring systems or devices
Information Patent Grant
FET Quartz oscillators
- Patent number 4,346,350
- Issue date Aug 24, 1982
- Citizen Watch Co., Ltd.
- Shigeru Morokawa
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Pace timing device
- Patent number 4,337,529
- Issue date Jun 29, 1982
- Citizen Watch Company Limited
- Shigeru Morokawa
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
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
Matrix driving method for electro-optical display device
- Patent number 4,300,137
- Issue date Nov 10, 1981
- Citizen Watch Company Limited
- Hiroo Fujita
- G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS

Patents Applicationslast 30 patents

Information Patent Application
Electric timepiece
- Publication number 20050002277
- Publication date Jan 6, 2005
- Masami Fukuda
- G04 - HOROLOGY
Information Patent Application
Timer of electric timepiece
- Publication number 20040062147
- Publication date Apr 1, 2004
- Shigeru Morokawa
- G04 - HOROLOGY
Information Patent Application
Concentration measuring instrument
- Publication number 20040012783
- Publication date Jan 22, 2004
- Shigeru Morokawa
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE

Shigeru Morokawa

Person

Patents Grantslast 30 patents

Electric timepiece

Concentration measuring instrument

Power supply circuit for driving liquid crystal display device

Timer of electric timepiece

Ultrabroad-band variable-wavelength wavelength-multiplexed pulse wa...

Semiconductor device

Liquid crystal display apparatus

Electronic timepiece

Liquid crystal display device

Optical device containing a liquid crystal element for changing opt...

Liquid crystal optical modulator device with each electrode width s...

Multi-level voltage generator to drive LCD

Selecting electrode drive circuit for a matrix liquid crystal display

Liquid crystal display having opaque portions on the electrodes

Method of driving liquid crystal matrix display

Television receiver having a liquid crystal display device

Television receiver with liquid crystal matrix display panel

Driving system for matrix display device

Image pickup system

Matrix driving method for electro-optical display device

Electronic timepiece with temperature compensation

Electronic timepiece

Low-power integrated circuit for an electronic timepiece

Electronic timepiece having improved primary frequency divider resp...

Electronic timepiece

FET Quartz oscillators

Pace timing device

Electronic timepiece

Electronic timepiece

Matrix driving method for electro-optical display device

Patents Applicationslast 30 patents

Electric timepiece

Timer of electric timepiece

Concentration measuring instrument