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. 26, 1988
Filed:
May. 09, 1986
Yoshiyuki Nakamori, Yuki, JP;
Seiichi Matsushima, Niihari, JP;
Yasunori Kanazawa, Hachioji, JP;
Mitsuyoshi Koyama, Yuki, JP;
Shinichi Abe, Odawara, JP;
Nobuyuki Fujimoto, Odawara, JP;
Hitachi Maxwell, Ltd., Osaka, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
A disc cartridge comprising a cartridge case, a magnetic recording disc rotatably mounted in the cartridge case, and head insertion openings formed extending to the side portions of the cartridge case, the openings being opened even at one edge of the cartridge case for facilitating insertion of the head mounted in a recording and play back device, the cartridge case being reinforced by at least one reinforcement member having a smaller diameter or a smaller thickness than the thickness of the cartridge case.