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:
Jan. 01, 2008
Filed:
Nov. 21, 2005
Applicant:
Tetsurou Saitoh, Miyagi, JP;
Inventor:
Tetsurou Saitoh, Miyagi, JP;
Assignee:
Ricoh Company, Ltd., Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
G02B 26/08 (2006.01);
U.S. Cl.
CPC ...
Abstract
A scanner element includes a frame part formed by a substrate, a movable plate formed inside the frame part and a torsion bar swingably supporting the movable plate on the frame part. One of the movable plate and the torsion bar has an adjusting part formed by a process of forming the movable plate and the torsion bar so that a ratio of an actual value of a moment of inertia I+ΔI of the movable plate to an actual value of a spring constant K+ΔK of the torsion bar is substantially equal to a ratio of a design value of the moment of inertia I of the movable plate to a design value of the spring constant K of the torsion bar.