Patents by Inventor Kohei Tachikawa

Kohei Tachikawa 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).

  • Colored film
    Patent number: 6294251
    Abstract: A colored film is formed of a transparent film and at least one colored adhesive layer colored with at least one coloring agent and provided on at least one side of the transparent film. The colored adhesive layer comprises a polyester resin as an adhesive, and the coloring agent comprises a pigment and a polyester-base dispersant.
    Type: Grant
    Filed: December 31, 1998
    Date of Patent: September 25, 2001
    Assignee: Lintec Corporation
    Inventors: Toshio Minagawa, Kohei Tachikawa, Leonardo M. Garcia, Chandrakant C. Patel
  • Label with a metallic layer of controlled thickness
    Patent number: 5773112
    Abstract: A label with a metallic layer of controlled thickness comprising a transparent or semi-transparent film, a metallic layer which is formed by metal deposition, has a light transmittance of 3 to 70%, and is formed on one side of the film, and a layer of an adhesive material formed on the metallic layer. Alternatively, a protective layer may be formed on the metallic layer, and the layer of an adhesive material formed on the other side of the film. The label is transparent even though it shows metallic gloss, has remarkably beautiful appearance, and is suitable for artistic design.
    Type: Grant
    Filed: January 2, 1997
    Date of Patent: June 30, 1998
    Assignee: Lintec Corporation
    Inventors: Kohei Tachikawa, Akira Katayama, Toshio Minagawa, Shigenobu Maruoka
  • Colored film
    Patent number: 5683805
    Abstract: Described is a colored film formed of a transparent film and at least one colored adhesive layer arranged on one side of the transparent film. The adhesive layer has been colored by a colorant composed of a pigment and a dispersant. The dispersant comprises a (meth)acrylate ester polymer formed, as essential monomer components, of an aromatic vinyl monomer, a primary to tertiary amino-containing (meth)acrylate ester monomer and a (meth)acrylate ester monomer containing an ammonium group quaternized with an aromatic compound.
    Type: Grant
    Filed: March 15, 1996
    Date of Patent: November 4, 1997
    Assignee: Lintec Corporation
    Inventors: Katsuyuki Oita, Kohei Tachikawa, Leonardo M. Garcia, Chandrakant C. Patel, Toshio Minagawa
  • Pressure sensitive adhesive label sheet
    Patent number: 5380572
    Abstract: A transparent pressure sensitive adhesive label sheet comprises a label film comprising a polyethylene resin of a density of 0.925 to 0.950 g/cm.sup.3 as the main component thereof, having an average of the tensile strength to the MD direction and the tensile strength to the TD direction of 250 kg/cm.sup.2 or more, a 1% secant modulus to the MD direction of 2500 to 5000 kg/cm.sup.2, a haze of 3 to 15% and a gloss of 80% or more and provided with the property suitable for printing by a surface treatment and a release paper laminated with the label film through a layer of a pressure sensitive adhesive material. An opaque pressure sensitive adhesive label sheet is about the same as the above except that it comprises a label film having a total light transmission of 40% or less in place of the haze and the gloss described above.
    Type: Grant
    Filed: March 31, 1993
    Date of Patent: January 10, 1995
    Assignee: Lintec Corporation
    Inventors: Terumitsu Kotani, Atusi Saitoh, Tomoya Yamada, Kohei Tachikawa, Yasuyuki Amano, Takeshi Ikeda