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:
Apr. 19, 2022
Filed:
Nov. 23, 2020
Applicant:
Nhk Spring Co., Ltd., Yokohama, JP;
Inventor:
Masaru Inoue, Aiko-gun, JP;
Assignee:
NHK SPRING CO., LTD., Kanagawa, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11B 5/48 (2006.01);
U.S. Cl.
CPC ...
G11B 5/4833 (2013.01); G11B 5/4826 (2013.01);
Abstract
A plate material has a first portion, a second portion, and a fracture portion connecting the first portion and the second portion, and is separated into the first portion and the second portion by tearing the fracture portion. The first portion and the second portion are arranged in a first direction. The fracture portion has thin portions arranged in a second direction crossing the first direction. Widths in the second direction of the thin portions are different from each other.