The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Oct. 16, 2012

Filed:

Nov. 10, 2010
Applicants:

Kazuo Kato, Chiba, JP;

Akira Takakura, Chiba, JP;

Kenji Ogasawara, Chiba, JP;

Saburo Manaka, Chiba, JP;

Kazumi Sakumoto, Chiba, JP;

Hiroshi Shimizu, Chiba, JP;

Tomohiro Ihashi, Chiba, JP;

Keishi Honmura, Chiba, JP;

Takanori Hasegawa, Chiba, JP;

Kosuke Yamamoto, Chiba, JP;

Eriko Noguchi, Chiba, JP;

Inventors:

Kazuo Kato, Chiba, JP;

Akira Takakura, Chiba, JP;

Kenji Ogasawara, Chiba, JP;

Saburo Manaka, Chiba, JP;

Kazumi Sakumoto, Chiba, JP;

Hiroshi Shimizu, Chiba, JP;

Tomohiro Ihashi, Chiba, JP;

Keishi Honmura, Chiba, JP;

Takanori Hasegawa, Chiba, JP;

Kosuke Yamamoto, Chiba, JP;

Eriko Noguchi, Chiba, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G04F 8/00 (2006.01); G04F 10/00 (2006.01);
U.S. Cl.
CPC ...
Abstract

Disclosed is a chronograph timepiece whose chronograph hands are electrically drive-controlled and mechanically zero-restoring-controlled, wherein it possible to perform a normal operation at the time of start operation and reset operation. After a mechanical control unit releases the setting of chronograph hands in response to the start operation of a start/stop button, a contact portion is placed in a start state, and an electrical control unit starts a time measurement operation to electrically hand-movement-drive the chronograph hands, and, after a contact portion is placed in a reset state in response to a reset operation of a reset button and the electrical control unit electrically resets the time measurement operation, the mechanical control unit mechanically zero-restores and sets the chronograph hands.


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