Patents Examined by Mukund H. Shah
  • N-alkyl and N-acyl derivatives of 3,7-Diazabicyclo-?3.3.1!nonanes and selected salts thereof as multi-class antiarrhythmic agents
    Patent number: 5786481
    Abstract: 3,7-Diazabicyclo?3.3!nonanes and selected derivatives thereof of the general formula: ##STR1## wherein Q=S; Z=CH.sub.2 ; and Y equals an N-acyl or N-alkyl group are disclosed as multiclass antiarrhythmic agents.
    Type: Grant
    Filed: October 19, 1995
    Date of Patent: July 28, 1998
    Assignee: The Board of Regents, Oklahoma State University
    Inventors: Kenneth Darrell Berlin, Gregory Lynn Garrison, Subbiah Sangiah, Cyril Roy Clarke, Chun-Lin Chen, Ralph Lazzara, Benjamin Jacob Scherlag, Eugene Stuart Patterson, George Edward Burrows
  • Photographic light-sensitive materials containing specific magenta dyes to control photographic sensitivity
    Patent number: 4761365
    Abstract: A silver halide photographic light-sensitive material is disclosed, comprising a support base having coated thereon a photographic layer containing a magenta dye represented by formula (I) ##STR1## wherein X represents ##STR2## wherein R.sub.1 represents a hydrogen atom or an alkyl group; Y and Z each represents a substituted or nonsubstituted alkyl group, a substituted or nonsubstituted aryl group, a substituted or nonsubstituted aralkyl group, wherein the substituent of the substituted alkyl group, aryl group or aralkyl group is not a sulfo group or a carboxyl group and the total of carbon atoms in Y and Z is 15 or more; and M represents a hydrogen atom or a cation.
    Type: Grant
    Filed: June 21, 1985
    Date of Patent: August 2, 1988
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Mitsugu Tanaka, Minoru Sakai