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:
Oct. 18, 2005
Filed:
Sep. 12, 2003
Takumi Akatsuka, Oyama, JP;
SO Kanai, Oyama, JP;
Takumi Akatsuka, Oyama, JP;
So Kanai, Oyama, JP;
Showa Denko K.K., Tokyo, JP;
Abstract
A pair of reference portionsandis brought into contact with an internal peripheral surfaceof the vicinity of both side end portions of a tubular bodyThe tubular bodyis rotated such that contact portions where the tubular bodyand the pair of reference portionsandcontact move on the internal peripheral surfacein a circumferential direction of the tubular bodywith positions of the pair of reference portionsandfixed. The radial displacement of an external peripheral surfaceof the tubular bodycaused by the rotation of the tubular bodyat at least one positionandof an external side of the tubular elementis detected, wherein the at least one position is fixed relative to the circumferential direction of the tubular element