Patents by Inventor William H. Hughes

William H. Hughes 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: 5310591
    Abstract: A transparent image-recording sheet suitable for use in a plain paper copier, comprising a transparent backing having two major surfaces, said sheet having a machine direction, and a transverse direction, at least one of the major surfaces having coated thereon, a transparent water-based toner-receptive coating comprising:a) from about 65 to about 99.9 parts of an imageable polymer;b) from about 0.1 to about 15 parts of at least one polymeric particle having a mean particle size ranging from about 1 .mu.m to about 15 .mu.m, andc) from 0 to about 20 parts of an antistatic agent,the toner-receptive coating being coated onto the transparent backing at a time during manufacture of the backing selected from the group consisting ofa) before any orientation of said film, andb) after uniaxial orientation in the machine direction.
    Type: Grant
    Filed: March 12, 1993
    Date of Patent: May 10, 1994
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Bill H. Dodge, William H. Hughes, Steven J. McMan, Sharon L. Perry, Manisha Sarkar
  • Patent number: 5310595
    Abstract: An image recording sheet and a transparent water-based toner receptive coating therefore comprising an imaging copolymer formed from at least one monomer selected from the group consisting of bicyclic alkyl (meth) acrylates, aliphatic alkyl (meth)acrylates having from about one to about 12 carbon atoms, aromatic (meth)acrylates, and a polar monomer having the formula: ##STR1## wherein R is hydrogen or methyl, R.sub.1 and R2 may be hydrogen, identical or differing alkyl groups having up to about 8 carbon atoms, preferably up to about 2 carbon atoms, or the quaternary cationic salts thereof, at least one novel long chain polymeric particle having good antifriction characteristics and optionally, an antistatic agent selected from the group consisting of cationic agents, anionic agents, fluorinated agents, and nonionic agents.
    Type: Grant
    Filed: September 18, 1992
    Date of Patent: May 10, 1994
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Mahfuza B. Ali, Bill H. Dodge, William H. Hughes, Mohammed Iqbal, Ying-Yuh Lu, Steven J. McMan, Manisha Sarkar, Chi-Ming Tseng