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:
Jul. 20, 1999
Filed:
Jun. 02, 1997
Hiroshi Adachi, Numazu, JP;
Kouichi Ohshima, Mishima, JP;
Masanori Rimoto, Mishima, JP;
Fumiaki Arai, Mishima, JP;
Hiroshi Tateishi, Fujinomiya, JP;
Tetsuo Tanaka, Mishima, JP;
Ricoh Company, Ltd., Tokyo, JP;
Tohoku Ricoh Co., Ltd., Miyagi-ken, JP;
Abstract
A stencil base sheet includes a thermoplastic resin film, with a surface of the stencil base sheet on the side of the thermoplastic resin film having a surface smoothness of at least 6000 seconds. From this stencil base sheet, a printing master is prepared by use of a heat-emitting resistor with the application of electric signals thereto with pulse modulation corresponding to image recording density, thereby forming perforations of a different size corresponding to recording image density in the stencil base sheet by thermal fusing. Furthermore, a monochrome or multi-color stencil printing is performed by using the printing master.