Patents by Inventor Naomitu Tanaka

Naomitu Tanaka 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).

  • Pressure-sensitive cleaning sheet, image-forming material having cleaning part, and method of cleaning image-forming apparatus
    Patent number: 6555192
    Abstract: A pressure-sensitive cleaning sheet is disclosed which comprises a substrate, a pressure-sensitive adhesive layer formed on one or both sides of the substrate, and a porous screen disposed on the pressure-sensitive adhesive layer. The cleaning sheet is substantially non-tacky when the cleaning sheet surface is kept in a non-pressed state, and exhibits tackiness when the cleaning sheet surface is kept in a pressed state. Also disclosed are a method of using the cleaning sheet, an image-forming material having a cleaning part, and a method of cleaning an image-forming apparatus. These are useful for the cleaning of, e.g., the magnetic reading parts and magnetic-card transport parts of apparatuses accepting various magnetic cards and the thermal heads and/or transport rollers of various recording apparatuses.
    Type: Grant
    Filed: August 1, 1997
    Date of Patent: April 29, 2003
    Assignee: Nitto Denko Corporation
    Inventors: Naomitu Tanaka, Tatsuo Koyama, Masanori Sano
  • Pressure-sensitive cleaning sheet, image-forming material having cleaning part, and method of cleaning image-forming apparatus
    Patent number: 6457200
    Abstract: A pressure-sensitive cleaning sheet is disclosed which comprises a substrate, a pressure-sensitive adhesive layer formed on one or both sides of the substrate, and a porous screen disposed on the pressure-sensitive adhesive layer. The cleaning sheet is substantially non-tacky when the cleaning sheet surface is kept in a non-pressed state, and exhibits tackiness when the cleaning sheet surface is kept in a pressed state. Also disclosed are a method of using the cleaning sheet, an image-forming material having a cleaning part, and a method of cleaning an image-forming apparatus. These are useful for the cleaning of, e.g., the magnetic reading parts and magnetic-card transport parts of apparatuses accepting various magnetic cards and the thermal heads and/or transport rollers of various recording apparatuses.
    Type: Grant
    Filed: June 13, 2000
    Date of Patent: October 1, 2002
    Assignee: Nitto Denko Corpration
    Inventors: Naomitu Tanaka, Tatsuo Koyama, Masanori Sano
  • Double-sided pressure-sensitive adhesive tape, laminated structure comprising the same, and method of use of same
    Patent number: 5372865
    Abstract: In the double-side pressure-sensitive tapes (A and B) of the first embodiment of the present invention, a first pressure-sensitive adhesive layer (2) comprising a blend of 100 parts by weight of an acrylic or rubber-based pressure-sensitive adhesive composition with from 0.01 to 30 parts by weight of a silicone polymer is formed on one side of a substrate and an acrylic or rubber-based pressure-sensitive adhesive layer is formed as a second pressure-sensitive adhesive layer (3) on the other side. By this, a double-side pressure-sensitive tape in which the pressure-sensitive adhesives, even when being bonded to each other, can thereafter be easily separated is obtained.
    Type: Grant
    Filed: September 9, 1992
    Date of Patent: December 13, 1994
    Assignee: Nitto Denko Corporation
    Inventors: Masaaki Arakawa, Naomitu Tanaka, Teiji Sakashita
  • Fixing tape
    Patent number: 5266372
    Abstract: A fixing tape is disclosed, which comprises a plastics film having a two- or three-layer construction comprising a plastics film layer and a polymer blend layer formed on at least one side of the plastics film layer, one side of the polymer blend layer facing away from the plastics film layer being a satin surface.
    Type: Grant
    Filed: May 7, 1992
    Date of Patent: November 30, 1993
    Assignee: Nitto Denko Corporation
    Inventors: Masaaki Arakawa, Teiji Sakashita, Kazumasa Sibata, Katsumi Hori, Makoto Takahashi, Naomitu Tanaka
  • Fixing tape
    Patent number: 5134012
    Abstract: A plastics film having a two- or three-layer construction comprising a plastics film layer and a polymer blend layer formed on at least one side of the plastics film layer, one side of the polymer blend layer facing away from the plastics film layer being a satin surface.
    Type: Grant
    Filed: October 20, 1989
    Date of Patent: July 28, 1992
    Assignee: Nitto Denko Corporation
    Inventors: Masaaki Arakawa, Teiji Sakashita, Kazumasa Sibata, Katsumi Hori, Makoto Takahashi, Naomitu Tanaka