Shigeru Morokawa

Person

Tokorozawa, JA

People

Patents Grantslast 30 patents

Information Patent Grant
Switch control unit for electronic timepiece
- Patent number 4,094,135
- Issue date Jun 13, 1978
- Citizen Watch Company Limited
- Yasushi Nomura
- G04 - HOROLOGY
Information Patent Grant
Voltage conversion system for electronic timepiece
- Patent number 4,094,137
- Issue date Jun 13, 1978
- Citizen Watch Company Limited
- Shigeru Morokawa
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Electronic timepiece
- Patent number 4,067,187
- Issue date Jan 10, 1978
- Citizen Watch Co., Ltd.
- Fukuo Sekiya
- G04 - HOROLOGY
Information Patent Grant
Electric timepiece for displaying the operating condition thereof
- Patent number 4,058,969
- Issue date Nov 22, 1977
- Citizen Watch Co., Ltd.
- Munetaka Tamaru
- G04 - HOROLOGY
Information Patent Grant
Solid state binary logic signal source for electronic timepiece or...
- Patent number 4,045,692
- Issue date Aug 30, 1977
- Shigeru Morokawa
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Method for controlling frequency of electrical oscillations and fre...
- Patent number 4,024,416
- Issue date May 17, 1977
- Citizen Watch Co., Ltd.
- Hiro Fujita
- G04 - HOROLOGY
Information Patent Grant
Booster circuits
- Patent number 4,016,476
- Issue date Apr 5, 1977
- Citizen Watch Co., Ltd.
- Shigeru Morokawa
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Electronic timepiece
- Patent number 4,015,419
- Issue date Apr 5, 1977
- Citizen Watch Co., Ltd.
- Shigeru Morokawa
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Electronic timepiece
- Patent number 4,003,198
- Issue date Jan 18, 1977
- Citizen Watch Co., Ltd.
- Shigeru Morokawa
- G04 - HOROLOGY
Information Patent Grant
Temperature compensated electronic timepiece
- Patent number 3,999,370
- Issue date Dec 28, 1976
- Citizen Watch Co., Ltd.
- Shigeru Morokawa
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Electric timepiece for displaying the operating condition thereof
- Patent number 3,998,043
- Issue date Dec 21, 1976
- Citizen Watch Co., Ltd.
- Munetaka Tamaru
- G04 - HOROLOGY
Information Patent Grant
Electric timepiece
- Patent number 3,978,650
- Issue date Sep 7, 1976
- Citizen Watch Co., Ltd.
- Yukio Hashimoto
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Solid state binary logic signal source for electronic timepiece or...
- Patent number 3,979,608
- Issue date Sep 7, 1976
- Citizen Watch Co., Ltd.
- Fukuo Sekiya
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
All electronic-type timepiece
- Patent number 3,971,205
- Issue date Jul 27, 1976
- Citizen Watch Co., Ltd.
- Yasushi Nomura
- G04 - HOROLOGY
Information Patent Grant
Display device employing special-purpose monograms
- Patent number 3,971,012
- Issue date Jul 20, 1976
- Citizen Watch Co., Ltd.
- Shigeru Morokawa
- G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
Information Patent Grant
Driving circuit for liquid-crystal display
- Patent number 3,961,840
- Issue date Jun 8, 1976
- Citizen Watch Co., Ltd.
- Shigeru Morokawa
- G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
Information Patent Grant
Electronic timepiece
- Patent number 3,948,036
- Issue date Apr 6, 1976
- Citizen Watch Co., Ltd.
- Shigeru Morokawa
- G04 - HOROLOGY
Information Patent Grant
Electronic wristwatch with electronic sound emitter device
- Patent number 3,940,919
- Issue date Mar 2, 1976
- Citizen Watch Co., Ltd.
- Tetuya Yasuda
- G04 - HOROLOGY
Information Patent Grant
Temperature compensated electronic timepiece
- Patent number 3,938,316
- Issue date Feb 17, 1976
- Citizen Watch Co., Ltd.
- Shigeru Morokawa
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Portable miniature type information treating device
- Patent number 3,937,004
- Issue date Feb 10, 1976
- Citizen Watch Co., Ltd.
- Minoru Natori
- G06 - COMPUTING CALCULATING COUNTING

Shigeru Morokawa

Person

Patents Grantslast 30 patents

Switch control unit for electronic timepiece

Voltage conversion system for electronic timepiece

Electronic timepiece

Electric timepiece for displaying the operating condition thereof

Solid state binary logic signal source for electronic timepiece or...

Method for controlling frequency of electrical oscillations and fre...

Booster circuits

Electronic timepiece

Electronic timepiece

Temperature compensated electronic timepiece

Electric timepiece for displaying the operating condition thereof

Electric timepiece

Solid state binary logic signal source for electronic timepiece or...

All electronic-type timepiece

Display device employing special-purpose monograms

Driving circuit for liquid-crystal display

Electronic timepiece

Electronic wristwatch with electronic sound emitter device

Temperature compensated electronic timepiece

Portable miniature type information treating device