US Patent 7743679 Power transmission device and method of producing the same

Patent 7743679 was granted and assigned to Toyota on June, 2010 by the United States Patent and Trademark Office.

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Patent

Patent attributes

Current Assignee

Toyota

Patent Jurisdiction

United States Patent and Trademark Office

Patent Number

77436790

Patent Inventor Names

Katsuyuki Hojo0

Naoki Kato0

Kenji Miyasaka0

Yuichi Nishida0

Shigetsugu Iwata0

Hiroki Goshima0

Hiroshi Mizoguchi0

Date of Patent

June 29, 2010

Patent Application Number

118169360

Date Filed

February 22, 2006

Patent Primary Examiner

‌

Greg Binda

Patent abstract

A power transmission device that can have deformation in processing suppressed. A spiral gear as a rotation member includes a disk section extending radially outwards from a boss section. The disk section includes a through hole in slit form through laser processing.

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