Patents by Inventor Shoji Toki

Shoji Toki has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 5859092
    Abstract: A recording liquid containing an aqueous medium, a pigment and a polymer, wherein the polymer comprises at least one polymer containing a repeating unit A having at least one of a carboxyl group and an acid anhydride group and an allylether unit B of the formula (I), ##STR1## wherein R.sub.1 and R.sub.2 are a hydrogen atom or a substituted or unsubstituted C.sub.1 -C.sub.5 alkyl group, R.sub.3 is a hydrogen atom, an alkyl group, an alkylcarbonyl group, an alkenyl group, an alkenylcarbonyl group, an aryl group, an arylcarbonyl group, an aralkyl group, an aralkylcarbonyl group, a cycloalkyl group, a cycloalkylcarbonyl group, a heterocyclic group or a carbonyl group having a heterocyclic group, and these groups other than a hydrogen atom may have a substituent, and n is from 1 to 50.
    Type: Grant
    Filed: April 18, 1997
    Date of Patent: January 12, 1999
    Assignee: Mitsubishi Chemical Corporation
    Inventors: Takashi Hirasa, Hiroshi Takimoto, Yukichi Murata, Hiroshi Mikami, Shoji Toki