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:
Sep. 21, 1993
Filed:
Dec. 04, 1992
Satoshi Shikichi, Tokyo, JP;
Fumiaki Kawaguchi, Tokyo, JP;
Kenichi Suzuki, Yokohama, JP;
Masayuki Usui, Yokohama, JP;
Hiroshi Matsuoka, Kawasaki, JP;
Kazuhiko Matsuoka, Yokohama, JP;
Hideki Hosoya, Yokohama, JP;
Akio Aoki, Tokyo, JP;
Masahiko Enari, Yokohama, JP;
Kazuo Minoura, Yokohama, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
The information recording method of the present invention comprises steps of recording information on a recording medium by a recording head during forward movement, reading the information recorded during the forward movement in the opposite sequence to the recording sequence during backward movement, and checking if the information has been correctly written or not based on the information read during the backward movement.