Patents by Inventor Toshiyuki Hirabe

Toshiyuki Hirabe 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).

  • Thermoplastic printing resin film containing calcium carbonate having a particular oil absorption
    Patent number: 6194506
    Abstract: A printing resin film excellent in ink dryability and transferability, and comprising a resin composition comprising (A) from 25 to 65% by weight of a calcium carbonate powder having an oil absorption of from 70 to 200 ml/100 g as determined by JIS-K5101-1991 and (B) from 35 to 75% by weight of a thermoplastic resin.
    Type: Grant
    Filed: October 13, 1998
    Date of Patent: February 27, 2001
    Assignee: Oji-Yuka Synthetic Paper Co., Ltd.
    Inventors: Hisao Ochiai, Nobuhiro Shibuya, Toshiyuki Hirabe
  • Coating composition for recording material and process for producing recording material
    Patent number: 6001165
    Abstract: A coating composition for a recording material and a process for producing the recording material are provided, wherein the coating composition includes an aluminum alkoxide, a binder and a hydrophilic solvent.
    Type: Grant
    Filed: June 24, 1998
    Date of Patent: December 14, 1999
    Assignee: Oji-Yuka Synthetic Paper Co., Ltd.
    Inventors: Nobuhiro Shibuya, Toshiyuki Hirabe, Koichi Asami, Masahiro Satoh, Hajime Kanbara
  • Forgery-preventive fretwork paper
    Patent number: 5871833
    Abstract: A forgery-preventive fretwork paper comprising a support layer and an engraving coating layer, the support layer being a stretched laminate which comprises a biaxially stretched propylene resin film layer as a base layer and, laminated thereto on each of front and back sides thereof, a uniaxially stretched propylene resin film layer containing fine inorganic powder, wherein said support layer has (1) an opacity (JIS P-8138) of from 50 to 100% and (2) a density (JIS P-8188) of from 0.70 to 1.4 g/cm.sup.3, and the paper bearing an engraving extending into the engraving coating layer or to one of the uniaxially stretched films of the support layer.
    Type: Grant
    Filed: January 13, 1997
    Date of Patent: February 16, 1999
    Assignee: Oji-Yuka Synthetic Paper Co., Ltd.
    Inventors: Motoshi Henbo, Toshiyuki Hirabe