Patents by Inventor Kazuhiro Higashio

Kazuhiro Higashio 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).

  • Publication number: 20150265742
    Abstract: A pressure-sensitive adhesive tape or sheet for application on skin includes a substrate and a pressure-sensitive adhesive layer laminated on at least one surface of the substrate. The pressure-sensitive adhesive layer contains: 100 parts by weight of an acrylic copolymer prepared by copolymerizing a monomer mixture comprising from 5 to 38% by weight of an alkyl (meth)acrylate monomer, from 61 to 90% by weight of an alkoxy group-containing ethylenic unsaturated monomer and from 1 to 10% by weight of a carboxyl group-containing ethylenic unsaturated monomer; and from 30 to 60 parts by weight of a carboxylic acid ester in a paste form or liquid form at room temperature. The acrylic copolymer has been subjected to a crosslinking treatment.
    Type: Application
    Filed: March 16, 2015
    Publication date: September 24, 2015
    Applicant: NITTO DENKO CORPORATION
    Inventors: Masao NAKAGAWA, Noriyuki KIKUTA, Atsushi HAMADA, Kazuhiro HIGASHIO
  • Patent number: 7749586
    Abstract: An adhering member comprises an adhesive layer 2 of a thickness R formed on one surface of a backing 1, and a liner 3 of a thickness T laminated on the adhesive layer, and has a half-cut formed in the liner for making handleability satisfactory while preventing seepage of contents. The adhering member excellent in handleability and stability is obtained by providing, for example, the half-cut 4 having a rectangular or inverted triangular sectional shape, a groove width of 200 ?m or less, and a groove depth of more than 14T/15 but less than (T+R).
    Type: Grant
    Filed: May 8, 2002
    Date of Patent: July 6, 2010
    Assignee: Nitto Denko Corporation
    Inventors: Hitoshi Akemi, Kazuhiro Higashio
  • Patent number: 7110177
    Abstract: The present invention provides a polarizing film or a polarizer that has an elastic modulus of at most about 3500 N/mm2 and suppresses occurrence of warping, the polarizing film is obtained by adsorbing a dichroic material in a polyvinyl alcohol-based film 20 ?m in thickness and stretching the tilin. The polarizing film has a transmittance of at least 43% and a polarization degree of at least 98%. A transparent protective layer is laminated on at least one surface of the polarizing film to form a polarizing plate.
    Type: Grant
    Filed: January 21, 2003
    Date of Patent: September 19, 2006
    Assignee: Nitto Denko Corporation
    Inventors: Youichirou Sugino, Hisashi Mihara, Kazuhiro Higashio, Seiichi Kusumoto
  • Publication number: 20050199337
    Abstract: A continuous band-shaped film is guided to a predetermined transport path by a guide roller while separating a protective film, and a single polarizer is supplied to a space between the guide roller and a liftable joining roller disposed above the guide roller so as to face the guide roller while separating a separator. In a state where the joining roller is lifted to create the space between the rollers, the polarizer is supplied to the space between the rollers. When the tip end of the polarizer reaches a predetermined position in the created space between the upper and lower rollers, the joining roller is lowered and the polarizer supplied synchronously with transportation of the film is pressed against the film and joined.
    Type: Application
    Filed: March 4, 2005
    Publication date: September 15, 2005
    Inventors: Toshirou Nishikubo, Kazuo Kitada, Hiroshi Aizawa, Kazuhiro Higashio
  • Patent number: 6934081
    Abstract: A polarizing plate used for manufacturing a liquid crystal display with suppressed irregularity in brightness, a method of manufacturing the same, and a liquid crystal display using the same, are provided. The polarizing plate is formed having a laminate of a polarizing film and a transparent protective layer provided on at least one surface of the polarizing film. By heat-treating and subsequently reheat-treating, the laminate has a shrinkage force of at most 8N/10 mm width when the laminate is further left at 60° C. for 1 hour, and furthermore, the laminate has a single hue value b of at most 4.6 NBS.
    Type: Grant
    Filed: September 19, 2002
    Date of Patent: August 23, 2005
    Assignee: Nitto Denko Corporation
    Inventors: Kazuhiro Higashio, Hisashi Mihara, Seiichi Kusumoto, Youichirou Sugino
  • Publication number: 20050158136
    Abstract: A cutting method and a cutting apparatus which allow a cross section of a layered sheet to be cut with high precision in a manner where the condition of this cross section is excellent and ripping does not easily occur along the expansion direction as well as a layered sheet and an optical member which have been cut according to this method, an optical element provided with this optical member and an image display on which this optical member or this optical element has been mounted are provided.
    Type: Application
    Filed: January 13, 2005
    Publication date: July 21, 2005
    Applicant: NITTO DENKO CORPORATION
    Inventors: Kazuhiro Higashio, Hironori Motomura, Minoru Kanatani
  • Publication number: 20030137732
    Abstract: The present invention provides a polarizing film or a polarizer that has an elastic modulus of at most about 3500 N/mm2 and suppresses occurrence of warping, the polarizing film is obtained by adsorbing a dichroic material in a polyvinyl alcohol-based film 20 mm in thickness and stretching the film. The polarizing film has a transmittance of at least 43% and a polarization degree of at least 98%. A transparent protective layer is laminated on at least one surface of the polarizing film to form a polarizing plate.
    Type: Application
    Filed: January 21, 2003
    Publication date: July 24, 2003
    Applicant: NITTO DENKO CORPORATION
    Inventors: Youichirou Sugino, Hisashi Mihara, Kazuhiro Higashio, Seiichi Kusumoto
  • Publication number: 20030072078
    Abstract: A polarizing plate used for manufacturing a liquid crystal display with suppressed irregularity in brightness, a method of manufacturing the same, and a liquid crystal display using the same, are provided. The polarizing plate is formed having a laminate of a polarizing film and a transparent protective layer provided on at least one surface of the polarizing film. By heat-treating and subsequently reheat-treating, the laminate has a shrinkage force of at most 8N/10 mm width when the laminate is further left at 60° C. for 1 hour, and furthermore, the laminate has a single hue value b of at most 4.6 NBS.
    Type: Application
    Filed: September 19, 2002
    Publication date: April 17, 2003
    Inventors: Kazuhiro Higashio, Hisashi Mihara, Seiichi Kusumoto, Youichirou Sugino
  • Publication number: 20030000639
    Abstract: An adhering member comprises an adhesive layer 2 of a thickness R formed on one surface of a backing 1, and a liner 3 of a thickness T laminated on the adhesive layer, and has a half-cut formed in the liner for making handleability satisfactory while preventing seepage of contents. The adhering member excellent in handleability and stability is obtained by providing, for example, the half-cut 4 having a rectangular or inverted triangular sectional shape, a groove width of 200 &mgr;m or less, and a groove depth of more than 14T/15 but less than (T+R).
    Type: Application
    Filed: May 8, 2002
    Publication date: January 2, 2003
    Applicant: NITTO DENKO CORPORATION
    Inventors: Hitoshi Akemi, Kazuhiro Higashio
  • Patent number: 5683710
    Abstract: A percutaneous absorption preparation for use in the administration of isosorbide dinitrate (ISDN) as a coronary vasodilator into the living body by percutaneous absorption, which has excellent adhesion to the skin and does not cause pain and damage to stratum corneum when peeled off, is disclosed. The pressure-sensitive adhesive layer comprises an acrylic copolymer prepared by copolymerization of a monomer mixture comprising a (meth)acrylic acid alkyl ester and a functional monomer as the essential components, a fatty acid ester having a specified number of carbon atoms, a monoglyceride having a specified number of carbon atoms, and ISDN, and the pressure-sensitive adhesive layer is crosslinked. Since its skin adhesive property is improved by the inclusion of the monoglyceride, release of ISDN is improved and the area of the preparation can be decreased.
    Type: Grant
    Filed: September 13, 1995
    Date of Patent: November 4, 1997
    Assignees: Nitto Denko Corporation, Toa Eiyo Ltd.
    Inventors: Hitoshi Akemi, Takateru Muraoka, Kazuhiro Higashio, Saburo Otsuka, Takashi Kinoshita
  • Patent number: 5650165
    Abstract: This invention provides a percutaneous absorption preparation for use in the percutaneous administration of drugs for percutaneous absorption into the living body for the purpose of preventing or treating various diseases, which has excellent adhesion to the skin and does not cause pain and damage to corneum when peeled off. Its pressure-sensitive adhesive layer contains an acrylic copolymer comprising a (meth)acrylic acid alkyl ester and a functional monomer as essential components, a fatty acid ester having a specified number of carbon atoms, a monoglyceride having a specified number of carbon atoms and a drug for percutaneous absorption, and the pressure-sensitive adhesive layer is crosslinked. Since its skin adhesive property is improved by the inclusion of the monoglyceride, release of the drug from the preparation is improved and the area of the preparation can be miniaturized.
    Type: Grant
    Filed: November 7, 1995
    Date of Patent: July 22, 1997
    Assignee: Nitto Denko Corporation
    Inventors: Hitoshi Akemi, Takateru Muraoka, Kazuhiro Higashio, Yutaka Suzuki, Saburo Otsuka
  • Patent number: 5505306
    Abstract: A package structure, in which a drug-containing pressure-sensitive adhesive sheet comprising a support, a drug-containing pressure-sensitive adhesive layer, and a separator in this order is packaged and sealed in a packaging material, is disclosed, wherein unevenness is provided on at least one of the surface of the support on the side in contact with the inside of the packaging material, the surface of the separator on the side in contact with the inside of the packaging material, and the inside surface of the packaging material. The unevenness reduces the contact area between the packaging material and the sheet so that an adhesive, a plasticizer or any liquid component of the adhesive layer is prevented from adhering to the inside of the packaging material. Therefore, the sheet can easily be taken out of unit package on use.
    Type: Grant
    Filed: July 14, 1994
    Date of Patent: April 9, 1996
    Assignee: Nitto Denko Corporation
    Inventors: Hitoshi Akemi, Takashi Kinoshita, Takateru Muraoka, Kazuhiro Higashio, Saburo Otsuka
  • Patent number: 5374429
    Abstract: A medical adhesive sheet comprising a support comprising a laminate of a polyester film having a thickness of from 0.5 to 6 .mu.m and a polyester nonwoven fabric having a basis weight of from 5 to 20 g/m.sup.2, and a pressure-sensitive adhesive layer laminated on the surface of the nonwoven fabric.
    Type: Grant
    Filed: April 16, 1993
    Date of Patent: December 20, 1994
    Assignee: Nitto Denko Corporation
    Inventors: Takashi Kinoshita, Saburo Otsuka, Hitoshi Akemi, Kazuhiro Higashio
  • Patent number: RE44315
    Abstract: The present invention provides a polarizing film or a polarizer that has an elastic modulus of at most about 3500 N/mm2 and suppresses occurrence of warping, the polarizing film is obtained by adsorbing a dichroic material in a polyvinyl alcohol-based film 20 ?m in thickness and stretching the film. The polarizing film has a transmittance of at least 43% and a polarization degree of at least 98%. A transparent protective layer is laminated on at least one surface of the polarizing film to form a polarizing plate.
    Type: Grant
    Filed: July 25, 2012
    Date of Patent: June 25, 2013
    Assignee: Nitto Denko Corporation
    Inventors: Youichirou Sugino, Hisashi Mihara, Kazuhiro Higashio, Seiichi Kusumoto