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.:

US 6411467 B1

PDF
Full Text
Expired
Date of Patent:
Jun. 25, 2002

Filed:

Mar. 29, 2001
Applicant:
Inventors:

Tsuneo Uwabo, Hachiouji, JP;

Yoshihiro Okano, Atsugi, JP;

Eiichi Yoneyama, Atsugi, JP;

Yoshinori Tangi, Hachiouji, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11B 2/303 ; G11B 1/702 ;
U.S. Cl.
CPC ...
G11B 2/303 ; G11B 1/702 ;
Abstract

A high-density flexible disk capable of accessing a large-capacity flexible disk is provided with a large-capacity detecting switch. The large-capacity flexible disk has a case accommodating a magnetic disk medium, with the case being provided with a write protection hole and a single large-capacity identifier hole formed in a vicinity of the write protection hole for distinguishing the large-capacity flexible disk from a small-capacity and a medium-capacity flexible disk. The large-capacity detecting switch of the high-density flexible disk is provided at a position corresponding to the large-capacity identifier hole for detecting the large-capacity identifier hole when the large-capacity flexible disk is inserted into the high-density flexible disk drive. In a preferred embodiment, the large-capacity detecting switch is integrally formed in a single unit with a write control switch for detecting open and close states of the write protection hole.


Find Patent Forward Citations

Uwabo, Tsuneo. (2002). Large-capacity flexible disk and high-density type disk drive used therefor (U.S. Patent No. 6411467). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/6411467

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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