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. 21, 2006
Filed:
Oct. 04, 2004
Yoshichika Kato, Tachikawa, JP;
Keiichi Mori, Tokyo, JP;
Satoshi Yoshida, Tama, JP;
Kenji Kondou, Chofu, JP;
Yoshihiko Hamada, Akiruno, JP;
Osamu Imaki, Hachioji, JP;
Yoshichika Kato, Tachikawa, JP;
Keiichi Mori, Tokyo, JP;
Satoshi Yoshida, Tama, JP;
Kenji Kondou, Chofu, JP;
Yoshihiko Hamada, Akiruno, JP;
Osamu Imaki, Hachioji, JP;
Japan Aviation Electronics Industry Limited, Tokyo, JP;
Abstract
A movable part formed on a substrate and adapted to be displaced in a direction parallel to the sheet surface of the substrate, a fixing part formed and fixedly mounted on the substrate, and springy hinges extending parallel to the sheet surface of the substrate and having their opposite ends connected to the movable part and the fixing part for supporting the movable part in a displaceable manner are provided. As viewed in cross section in a plane perpendicular to the lengthwise direction of the hinges, the hinge has a width which is diminishing as the top surface of the substrate is approached, thus having a trapezoidal or triangular cross section. A width as measured on the top surface of the hinge which is required to provide an equivalent spring constant can be chosen to be greater than the width of a hinge having a rectangular cross section (constant width), and this facilitates the implementation of the photolithography during the manufacture.