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:
Dec. 02, 2025
Filed:
Mar. 06, 2024
Kabushiki Kaisha Toshiba, Tokyo, JP;
Toshiba Electronic Devices & Storage Corporation, Tokyo, JP;
Manabu Uehara, Kawasaki Kanagawa, JP;
Kabushiki Kaisha Toshiba, Kawasaki, JP;
Toshiba Electronic Devices & Storage Corporation, Kawasaki, JP;
Abstract
A disk device according to an embodiment includes head gimbal assemblies, a ramp, and magnetic disks. The ramp has a wall and protrusions arranged in an axial direction with a gap. Each of the protrusions includes a first surface facing the gap, a second surface located opposite to the first surface, a side surface, and a limiter protruding from the side surface. Each of the first surface and the second surface includes a first inclined region, a first flat region, and a first middle region located between the first inclined region and the first flat region. The limiter is located between two first flat regions. A width between two first middle regions is less than or equal to a width between the two first flat regions and is at least partially shorter than the width between the two first flat regions.