Fumio Nakajima

Person

Tokyo, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Angular velocity sensing device
- Patent number 6,205,857
- Issue date Mar 27, 2001
- Citizen Watch Co., Ltd.
- Fumio Nakajima
- G01 - MEASURING TESTING
Information Patent Grant
Angular velocity sensor and angular velocity sensing system
- Patent number 6,170,330
- Issue date Jan 9, 2001
- Citizen Watch Co., Ltd.
- Fumio Nakajima
- G01 - MEASURING TESTING
Information Patent Grant
Angular velocity sensing device
- Patent number 6,151,964
- Issue date Nov 28, 2000
- Citizen Watch Co., Ltd.
- Fumio Nakajima
- G01 - MEASURING TESTING
Information Patent Grant
Electronic watch
- Patent number 6,147,936
- Issue date Nov 14, 2000
- Citizen Watch Co., Ltd.
- Fumio Nakajima
- G01 - MEASURING TESTING
Information Patent Grant
Angular velocity sensor and angular velocity sensing system
- Patent number 5,970,793
- Issue date Oct 26, 1999
- Citizen Watch Co., Ltd.
- Fumio Nakajima
- G01 - MEASURING TESTING
Information Patent Grant
Electronic watch and method of charging the same
- Patent number 5,835,457
- Issue date Nov 10, 1998
- Citizen Watch Co., Ltd.
- Fumio Nakajima
- G04 - HOROLOGY
Information Patent Grant
Electronic watch and method of driving the same
- Patent number 5,798,985
- Issue date Aug 25, 1998
- Citizen Watch Co., Ltd.
- Fumio Nakajima
- G04 - HOROLOGY
Information Patent Grant
Super-miniature motor
- Patent number 5,637,937
- Issue date Jun 10, 1997
- Citizen Watch Co., Ltd.
- Fumio Nakajima
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Quartz crystal oscillator angular velocity detector circuits
- Patent number 5,420,548
- Issue date May 30, 1995
- Citizen Watch Co., Ltd.
- Fumio Nakajima
- G01 - MEASURING TESTING
Information Patent Grant
Carriage device for moving and positioning magnetic head
- Patent number 4,590,529
- Issue date May 20, 1986
- Citizen Watch Co., Ltd.
- Akira Nikaido
- G11 - INFORMATION STORAGE
Information Patent Grant
Micro stepping motor
- Patent number 4,558,244
- Issue date Dec 10, 1985
- Citizen Watch Co., Ltd.
- Akira Nikaido
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Motor driving circuits
- Patent number 4,480,216
- Issue date Oct 30, 1984
- Citizen Watch Co., Ltd.
- Fumio Nakajima
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Electronic timepiece
- Patent number 4,404,510
- Issue date Sep 13, 1983
- Citizen Watch Co., Ltd.
- Fumio Nakajima
- G04 - HOROLOGY
Information Patent Grant
Drive system for pulse motor
- Patent number 4,361,410
- Issue date Nov 30, 1982
- Citizen Watch Company Ltd.
- Fumio Nakajima
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Electronic timepiece
- Patent number 4,340,946
- Issue date Jul 20, 1982
- Citizen Watch Company Limited
- Fumio Kanno
- G04 - HOROLOGY
Information Patent Grant
Drive control system for stepping motor
- Patent number 4,283,783
- Issue date Aug 11, 1981
- Citizen Watch Company Limited
- Fumio Nakajima
- G04 - HOROLOGY
Information Patent Grant
Electronic timepiece
- Patent number 4,223,522
- Issue date Sep 23, 1980
- Citizen Watch Co., Ltd.
- Yasushi Nomura
- G04 - HOROLOGY
Information Patent Grant
High-temperature microscope
- Patent number 4,186,305
- Issue date Jan 29, 1980
- Union Kogaku Kabushiki Kaisha
- Tadami Taoka
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Capacitor switching circuits for adjusting crystal oscillator frequ...
- Patent number 4,179,671
- Issue date Dec 18, 1979
- Citizen Watch Company Limited
- Hirohiko Yoshida
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Driver circuit for electro-mechanical transducer
- Patent number 4,158,287
- Issue date Jun 19, 1979
- Citizen Watch Company Limited
- Fumio Nakajima
- G04 - HOROLOGY
Information Patent Grant
Electronic timepiece
- Patent number 4,150,536
- Issue date Apr 24, 1979
- Citizen Watch Company Limited
- Fumio Nakajima
- G04 - HOROLOGY
Information Patent Grant
Pulse motor
- Patent number 4,144,467
- Issue date Mar 13, 1979
- Citizen Watch Co., Ltd.
- Fumio Nakajima
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Electronic timepiece
- Patent number 4,129,981
- Issue date Dec 19, 1978
- Citizen Watch Company Limited
- Yasushi Nomura
- G04 - HOROLOGY

Fumio Nakajima

Person

Patents Grantslast 30 patents

Angular velocity sensing device

Angular velocity sensor and angular velocity sensing system

Angular velocity sensing device

Electronic watch

Angular velocity sensor and angular velocity sensing system

Electronic watch and method of charging the same

Electronic watch and method of driving the same

Super-miniature motor

Quartz crystal oscillator angular velocity detector circuits

Carriage device for moving and positioning magnetic head

Micro stepping motor

Motor driving circuits

Electronic timepiece

Drive system for pulse motor

Electronic timepiece

Drive control system for stepping motor

Electronic timepiece

High-temperature microscope

Capacitor switching circuits for adjusting crystal oscillator frequ...

Driver circuit for electro-mechanical transducer

Electronic timepiece

Pulse motor

Electronic timepiece