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. 28, 2026
Filed:
Nov. 06, 2023
Resonac Corporation, Tokyo, JP;
RESONAC HARD DISK CORPORATION, Chiba, JP;
Abstract
Falling of a substrate and deformation or breakage of the substrate are inhibited. A substrate holder includes a hole portion in which a disk-shaped substrate is placed upright, and at least four supporting members attached elastically-deformably on a periphery of the hole portion. Two of the four supporting members support disk-shaped substrate at first- and second-side circumferential end portions of disk-shaped substrate positioned at vertical-direction upper positions of disk-shaped substrate. Remaining two of the four supporting members support disk-shaped substrate at third- and fourth-side circumferential end portions of disk-shaped substrate positioned at vertical-direction lower positions of disk-shaped substrate. Central angle in disk-shaped substrate between either first- or second-side circumferential end portion and uppermost end portion of disk-shaped substrate is from 15° through 40°. Central angle in disk-shaped substrate between either third- or fourth-side circumferential end portion and lowermost end portion of disk-shaped substrate is from 10° through 15°.