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. 27, 2020
Filed:
Feb. 26, 2018
Seiko Instruments Inc., Chiba-shi, Chiba, JP;
Takuma Otomo, Chiba, JP;
Yasunori Akasaka, Chiba, JP;
Ryo Sugawara, Chiba, JP;
Tomoo Kobayashi, Chiba, JP;
SEIKO INSTRUMENTS INC., Chiba, JP;
Abstract
An object of the present invention is to provide a metal elastic element which is suitable for sensing or the like of a fluid pressure change and exhibits favorable resilience even in the case of receiving a sudden pressure change, and also provide a diaphragm using the same. A metal elastic element of the present invention is composed of a two-phase stainless steel having a γ-phase and an α-phase, wherein the area ratio of the γ-phase is 40% or less, and the two-phase structure is a marble-like metal structure. In the invention, it is preferred that the element has a fiber texture in which <111>γ and <110>α are preferentially oriented parallel to the thickness direction.