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.
Patent No.:
Date of Patent:
Feb. 22, 2011
Filed:
May. 22, 2008
Hitoshi Hattori, Tokyo, JP;
Masahiro Tamura, Kanagawa, JP;
Nobuyoshi Suzuki, Tokyo, JP;
Shuuya Nagasako, Kanagawa, JP;
Tomoichi Nomura, Nagoya, JP;
Hiroshi Maeda, Nagoya, JP;
Kazuhiro Kobayashi, Kanagwa, JP;
Akira Kunieda, Tokyo, JP;
Makoto Hidaka, Tokyo, JP;
Ichiro Ichihashi, Nagoya, JP;
Tomohiro Furuhashi, Kanagwa, JP;
Naohiro Kikkawa, Kanagawa, JP;
Junichi Tokita, Kanagawa, JP;
Hitoshi Hattori, Tokyo, JP;
Masahiro Tamura, Kanagawa, JP;
Nobuyoshi Suzuki, Tokyo, JP;
Shuuya Nagasako, Kanagawa, JP;
Tomoichi Nomura, Nagoya, JP;
Hiroshi Maeda, Nagoya, JP;
Kazuhiro Kobayashi, Kanagwa, JP;
Akira Kunieda, Tokyo, JP;
Makoto Hidaka, Tokyo, JP;
Ichiro Ichihashi, Nagoya, JP;
Tomohiro Furuhashi, Kanagwa, JP;
Naohiro Kikkawa, Kanagawa, JP;
Junichi Tokita, Kanagawa, JP;
Ricoh Company, Limited, Tokyo, JP;
Abstract
A stepping motor driving device drives a stepping motor according to a drive pulse of a step signal. A phase matching unit matches, at a time when there is a possibility that a rotor and a phase signal are out of phase with each other, phases of the rotor and the phase signal by applying at least one drive pulse after energizing the stepping motor for a predetermined time and applying a phase signal having a predetermined duration for a final pulse.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile