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:
Oct. 25, 1988
Filed:
Oct. 30, 1987
Sadatoshi Murakami, Fukuyama, JP;
Satoru Yamasaki, Fukuyama, JP;
Kenji Nomura, Amagasaki, JP;
Masayuki Tanaka, Fukuyama, JP;
Kenichiro Oka, Kamakura, JP;
Masaru Ohnishi, Kamakura, JP;
Sayoko Hirata, Fukuyama, JP;
Mitsubishi Denki Kabushiki Kaisha, Tokyo, JP;
Abstract
A platen for use in a thermal printer of a type designed to effect printing with the use of at least one thermal print head for printing a recording medium positioned between the platen and the thermal print head, which platen comprises a generally elongated elastic body having an exterior surface adapted to be brought into contact with the heating elements of the thermal print head assembly with at least the recording medium intervening therebetween. At least the exterior surface of the elastic body is mixed with a mass of porous fine particles having a hardness greater than that of the elastic body and also having a thermal conductivity lower than that of the elastic body. The thermal conductivity and the porosity of the porous fine particles may be within the range of 0.04 to 0.09 Kcal/m.sup.2.hr..degree.C. and within the range of 60 to 95%, respectively.