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:
Jan. 13, 1987
Filed:
Mar. 29, 1985
Hisao Watarai, Yagiyamaminami, Sendai-shi, Miyagi, JP;
Masahiro Tanaka, Kagitori, Sendai-shi, Miyagi, JP;
Shuji Masuda, Ejiri Aza Miyanomoto, Kitajimamachi, Itano-gun, Tokushima, JP;
Kenji Suzuki, Shogen, Izumi-shi, Miyagi, JP;
Tsuyoshi Masumoto, Kamisugi, Sendai-shi, Miyagi, JP;
Research Development Corporation of Japan, Tokyo, JP;
Other;
Abstract
A recording medium is disclosed, which comprises as the main component an amorphous lead oxide or a lead oxide at the metastable state, having the formula of PbL.sub.x M.sub.y O.sub.z wherein L and M each indicate elements other than Pb and O. The recording mediums are drastically changed in their electrical properties and optical properties by application of heat, due to the characteristics inherent in the main component, and such changes make the recording medium highly useful for recording by laser light or heat.