Patents Examined by Manich Shah
  • Patent number: 6338545
    Abstract: In an apparatus producing a high-quality and high-resolution image having high water and light resistances with an orifice having a diameter less than &phgr;25 &mgr;m (less than 500 &mgr;m2 in terms of cross-sectional area of the orifice) by use of a fine particle dispersion recording composition, nozzle clogging can be prevented. A recording is accomplished by a liquid jet recording apparatus for ejecting a recording composition including dispersed fine particles from a small orifice toward a receiving medium, wherein a size Dp of the fine particles and a diameter Do of the small orifice are determined by a relationship 0.001≦Dp/Do≦0.01.
    Type: Grant
    Filed: July 8, 1999
    Date of Patent: January 15, 2002
    Assignee: Ricoh Company, Ltd.
    Inventor: Takuro Sekiya