Mai Tu Xuan

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Chavannes, CH

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Patents Grantslast 30 patents

Information Patent Grant
Energizing method for a single phase timepiece stepping motor
- Patent number 4,542,329
- Issue date Sep 17, 1985
- Omega S.A.
- Mai Tu Xuan
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Position detector for a stepping motor
- Patent number 4,467,255
- Issue date Aug 21, 1984
- Societe Suisse pour l'Industrie Horlogere Management Services S.A.
- Mai Tu Xuan
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Method for slaving a stepping motor and arrangement for practising...
- Patent number 4,456,866
- Issue date Jun 26, 1984
- Omega S.A.
- Mai Tu Xuan
- G04 - HOROLOGY
Information Patent Grant
Single phase bipolar stepping motor having two rotation senses
- Patent number 4,382,693
- Issue date May 10, 1983
- Societe Suisse pour l'Industrie Horlogere Management Services S.A.
- Mai Tu Xuan
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Movement detector for a stepping motor
- Patent number 4,346,463
- Issue date Aug 24, 1982
- Societe Suisse pour l'Industrie Horlogere Management Services S.A.
- Mai Tu Xuan
- G04 - HOROLOGY