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:
Nov. 01, 1977
Filed:
Sep. 01, 1976
Applicant:
Inventors:
Kiyotaka Iiyama, Yokohama, JA;
Takeshi Matsui, Yokohama, JA;
Shigeru Kusakata, Kawasaki, JA;
Michihisa Takahashi, Tachikawa, JA;
Assignee:
Ricoh Company, Ltd., Tokyo, JA;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03D / ;
U.S. Cl.
CPC ...
354300 ; 354299 ;
Abstract
A developing chamber and inlet and outlet chambers leading to and from the developing chamber respectively are uniformly heated in such a manner that ammonia gas used as a developing agent and water vapor are prevented from being condensed and contaminating copy sheets.