Patents by Inventor Hironobu Amagai

Hironobu Amagai 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: 5712026
    Abstract: An image-receiving sheet for melt thermal transfer recording is disclosed, including: a support (I) comprising (i) a substrate layer (A) made of a stretched film having microvoids formed therein, said stretched film of substrate layer (A) is obtained by stretching a propylene resin film comprising a propylene resin in an amount of from 65 to 95% by weight and inorganic fine powder having a specific surface area of from 10,000 to 40,000 cm.sup.2 /g and an average grain diameter of from 0.5 to 2.3 .mu.m in an amount of from 5 to 35% by weight, (ii) a surface layer (B) made of a stretched propylene film comprising a propylene resin in an amount of from 35 to 65% by weight and inorganic fine powder having a specific surface area of from 25,000 to 300,000 cm.sup.2 /g and an average grain diameter of from 0.07 to 0.9 .mu.
    Type: Grant
    Filed: August 8, 1996
    Date of Patent: January 27, 1998
    Assignee: Oji-Yuka Synthetic Paper Co., Ltd.
    Inventors: Hironobu Amagai, Takatoshi Nishizawa, Motoshi Henbo
  • Patent number: 5397637
    Abstract: A thermoplastic resin film having a coated layer thereon, the coating layer comprising a quaternary ammonium salt copolymer comprising (a) a structural unit represented by formula (I): ##STR1## wherein A represents --O-- or --NH--; R.sup.1 represents a hydrogen atom or a methyl group; R.sup.2 represents an alkylene group having from 2 to 4 carbon atoms or --CH.sub.2 CH(OH)--CH.sub.2 --; R.sup.3, R.sup.4, R.sup.5, and R.sup.6, which may be the same or different, each represents an alkyl group having from 1 to 3 carbon atoms; R.sup.7 represents an alkyl group having from 1 to 10 carbon atoms or an aralkyl group having from 7 to 10 carbon atoms; n represents an integer of from 1 to 3; and X represents a chlorine atom, a bromine atom or an iodine atom, (b) a structural unit represented by formula (II): ##STR2## wherein R.sup.8 represents a hydrogen atom or a methyl group; and R.sup.
    Type: Grant
    Filed: June 16, 1993
    Date of Patent: March 14, 1995
    Assignee: Oji Yuka Goseishi Co., Ltd.
    Inventors: Koichi Asami, Hironobu Amagai, Yukio Saitoh, Isao Itoh