Patents by Inventor Makoto Namikawa

Makoto Namikawa 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: 7846258
    Abstract: A cleaning sheet comprises a cleaning layer provided on one side of a base material, from which cleaning layer F?, Cl?, Br?, NO2?, NO3?, PO43?, SO42?, Na+, NH4+ and K+ are extractable with pure water each in an amount of not greater than 20 ppm, when extracted under boiling at 120° C. for 1 hour, and a pressure-sensitive adhesive layer provided on the other side of the base material, a carrying material with cleaning capacity comprising the aforementioned cleaning sheet laminated on a carrying material with a pressure-sensitive adhesive layer. The present disclosure also relates to a method for cleaning a substrate processing equipment which comprises conveying the aforementioned carrying material with cleaning capacity into the substrate processing equipment.
    Type: Grant
    Filed: November 10, 2003
    Date of Patent: December 7, 2010
    Assignee: Nitto Denko Corporation
    Inventors: Yoshio Terada, Makoto Namikawa, Eiji Toyoda
  • Patent number: 7793668
    Abstract: A cleaning sheet for cleaning foreign matters away from the interior of the substrate processing equipment is provided. The cleaning sheet includes a cleaning layer having substantially no tackiness and having a tensile modulus of not lower than 0.98 N/mm2 as determined according to JIS K7127. Alternatively, the cleaning sheet includes a cleaning layer having a Vickers hardness of not lower than 10 MPa.
    Type: Grant
    Filed: December 20, 2004
    Date of Patent: September 14, 2010
    Assignee: Nitto Denko Corporation
    Inventors: Makoto Namikawa, Yoshio Terada, Jirou Nukaga, Eiji Toyoda, Hirofumi Fujii, Daisuke Uenda, Asami Funatsu, Nobuaki Maruoka, Hitoshi Ishizaka, Yasuhiro Amano
  • Publication number: 20100175716
    Abstract: Provided is a cleaning member, which is capable of removing minute foreign matter, preferably foreign matter of a submicron level simply, exactly, and sufficiently, without contaminating a cleaning site. Further provided is a delivery member with a cleaning function having the cleaning member and a method of cleaning a substrate processing apparatus using the delivery member with a cleaning function. The cleaning member of the present invention includes a cleaning layer having a plurality of protrusions of a columnar structure on the surface, in which an aspect ratio of the protrusions of a columnar structure is 5 or more.
    Type: Application
    Filed: June 28, 2007
    Publication date: July 15, 2010
    Applicant: NITTO DENKO CORPORATION
    Inventors: Yuki Sugo, Yoshio Terada, Daisuke Uenda, Makoto Namikawa, Yoshinori Yoshida, Youhei Maeno
  • Patent number: 7718255
    Abstract: The invention provides cleaning sheets for use in cleaning, e.g., various substrate-processing apparatus, systems for conveying exposure masks (reticles) in microfabrication, etc., and a method of cleaning these with the cleaning sheets. A cleaning sheet which comprises a sheet material comprising a thermoset resin layer having porosity and, formed on one side of the sheet material, a pressure-sensitive adhesive layer comprising a thermoplastic resin.
    Type: Grant
    Filed: August 19, 2003
    Date of Patent: May 18, 2010
    Assignee: Nitto Denko Corporation
    Inventors: Makoto Namikawa, Yoshio Terada
  • Patent number: 7713356
    Abstract: A cleaning sheet for cleaning foreign matters away from the interior of the substrate processing equipment is provided. The cleaning sheet includes a cleaning layer having substantially no tackiness and having a tensile modulus of not lower than 0.98 N/mm2 as determined according to JIS K7127. Alternatively, the cleaning sheet includes a cleaning layer having a Vickers hardness of not lower than 10.
    Type: Grant
    Filed: May 8, 2001
    Date of Patent: May 11, 2010
    Assignee: Nitto Denko Corporation
    Inventors: Makoto Namikawa, Yoshio Terada, Jirou Nukaga, Eiji Toyoda
  • Patent number: 7615288
    Abstract: A cleaning sheet which comprises a cleaning layer having a tensile stress at 10% strain of from 0.3 to 3,000 N/mm2 or a carrying member with a cleaning function wherein at least one side of the carrying member has a cleaning layer having a tensile stress at 10% strain of from 0.3 to 3,000 N/mm2, particularly, a cleaning sheet or a carrying member with a cleaning function of the aforementioned constructions, wherein the aforementioned cleaning layer comprises a resin layer having been hardened by an active energy source or a polymer resin having heat resistance.
    Type: Grant
    Filed: June 24, 2004
    Date of Patent: November 10, 2009
    Assignee: Nitto Denko Corporation
    Inventors: Yoshio Terada, Eiji Toyoda, Makoto Namikawa
  • Publication number: 20090253891
    Abstract: The present invention provides a cleaning substrate of a substrate processing equipment, which comprises a cleaning layer comprising a heat resistant resin with a storage modulus (1 Hz) at 20° C. up to 150° C. being 5×107 Pa to 1×109 Pa on at least one face of the substrate; and a polyimide resin suitable as the heat resistant resin for the cleaning layer and usable under circumstances possibly involving the generation of serious disadvantages due to silicone contamination, such as for HDD application and some semiconductor applications.
    Type: Application
    Filed: June 15, 2009
    Publication date: October 8, 2009
    Applicant: NITTO DENKO CORPORATION
    Inventors: Yoshio TERADA, Hirofumi FUJII, Makoto NAMIKAWA, Daisuke UENDA, Yasuhiro AMANO
  • Patent number: 7575812
    Abstract: The present invention provides a cleaning substrate of a substrate processing equipment, which comprises a cleaning layer comprising a heat resistant resin with a storage modulus (1 Hz) at 20° C. up to 150° C. being 5×107 Pa to 1×109 Pa on at least one face of the substrate; and a polyimide resin suitable as the heat resistant resin for the cleaning layer and usable under circumstances possibly involving the generation of serious disadvantages due to silicone contamination, such as for HDD application and some semiconductor applications.
    Type: Grant
    Filed: October 19, 2005
    Date of Patent: August 18, 2009
    Assignee: Nitto Denko Corporation
    Inventors: Yoshio Terada, Hirofumi Fujii, Makoto Namikawa, Daisuke Uenda, Yasuhiro Amano
  • Patent number: 7575790
    Abstract: A cleaning sheet comprising: a cleaning layer; and a protective film treated with a releasing agent comprising a silicone, the protective film being provided as a separator on at least one side of the cleaning layer, wherein an amount of silicone attached to the cleaning layer when the separator is peeled off from the cleaning layer is 0.005 g/m2 or less as calculated in terms of polydimethylsiloxane.
    Type: Grant
    Filed: October 31, 2002
    Date of Patent: August 18, 2009
    Assignee: Nitto Denko Corporation
    Inventors: Yoshio Terada, Makoto Namikawa
  • Publication number: 20080173329
    Abstract: A cleaning sheet which comprises a porous layer as a cleaning layer; or a cleaning sheet which comprises a sheet material having a porous layer and, formed on one side of the sheet material, an adhesive layer.
    Type: Application
    Filed: March 10, 2008
    Publication date: July 24, 2008
    Inventors: Makoto NAMIKAWA, Yoshio Terada, Jirou Nukaga
  • Publication number: 20070104939
    Abstract: A cleaning sheet which comprises a porous layer as a cleaning layer; or a cleaning sheet which comprises a sheet material having a porous layer and, formed on one side of the sheet material, an adhesive layer.
    Type: Application
    Filed: December 22, 2006
    Publication date: May 10, 2007
    Inventors: Makoto Namikawa, Yoshio Terada, Jirou Nukaga
  • Publication number: 20060151004
    Abstract: An aim of the invention is to provide a cleaning member which causes no contamination of a substrate processing equipment by ionic impurities in the removal of foreign matters attached to the interior of the equipment through cleaning by the conveyance thereof into the equipment, a cleaning member which causes little contamination of a substrate processing equipment by metal impurities attributed to a protective film in the removal of foreign matters attached to the interior of the equipment through cleaning by the conveyance thereof into the equipment and a cleaning member which causes no contamination of a substrate processing equipment by metal impurities in the removal of foreign matters attached to the interior of the equipment through cleaning by the conveyance thereof into the equipment.
    Type: Application
    Filed: November 10, 2003
    Publication date: July 13, 2006
    Inventors: Yoshio Terada, Makoto Namikawa, Eiji Toyoda
  • Publication number: 20060141258
    Abstract: The present invention provides a cleaning substrate of a substrate processing equipment, which comprises a cleaning layer comprising a heat resistant resin with a storage modulus (1 Hz) at 20° C. up to 150° C. being 5×107 Pa to 1×109 Pa on at least one face of the substrate; and a polyimide resin suitable as the heat resistant resin for the cleaning layer and usable under circumstances possibly involving the generation of serious disadvantages due to silicone contamination, such as for HDD application and some semiconductor applications.
    Type: Application
    Filed: October 19, 2005
    Publication date: June 29, 2006
    Inventors: Yoshio Terada, Hirofumi Fujii, Makoto Namikawa, Daisuke Uenda, Yasuhiro Amano
  • Publication number: 20060105164
    Abstract: A cleaning sheet for cleaning foreign matters away from the interior of the substrate processing equipment is provided. The cleaning sheet includes a cleaning layer having substantially no tackiness and having a tensile modulus of not lower than 0.98 N/mm2 as determined according to JIS K7127. Alternatively, the cleaning sheet includes a cleaning layer having a Vickers hardness of not lower than 10 MPa.
    Type: Application
    Filed: September 20, 2005
    Publication date: May 18, 2006
    Inventors: Makoto Namikawa, Yoshio Terada, Jirou Nukaga, Eiji Toyoda, Hirofumi Fujii, Daisuke Uenda, Asami Funatsu, Nobuaki Maruoka, Hitoshi Ishizaka, Yasuhiro Amano
  • Publication number: 20050244632
    Abstract: A cleaning sheet for cleaning foreign matters away from the interior of the substrate processing equipment is provided. The cleaning sheet includes a cleaning layer having substantially no tackiness and having a tensile modulus of not lower than 0.98 N/mm2 as determined according to JIS K7127. Alternatively, the cleaning sheet includes a cleaning layer having a Vickers hardness of not lower than 10 MPa.
    Type: Application
    Filed: December 20, 2004
    Publication date: November 3, 2005
    Inventors: Makoto Namikawa, Yoshio Terada, Jirou Nukaga, Eiji Toyoda, Hirofumi Fujii, Daisuke Uenda, Asami Funatsu, Nobuaki Maruoka, Hitoshi Ishizaka, Yasuhiro Amano
  • Publication number: 20050118414
    Abstract: A cleaning sheet which comprises a porous layer as a cleaning layer; or a cleaning sheet which comprises a sheet material having a porous layer and, formed on one side of the sheet material, an adhesive layer.
    Type: Application
    Filed: December 1, 2004
    Publication date: June 2, 2005
    Inventors: Makoto Namikawa, Yoshio Terada, Jirou Nukaga
  • Publication number: 20050048241
    Abstract: A cleaning sheet comprising: a cleaning layer; and a protective film treated with a releasing agent comprising a silicone, the protective film being provided as a separator on at least one side of the cleaning layer, wherein an amount of silicone attached to the cleaning layer when the separator is peeled off from the cleaning layer is 0.005 g/m2 or less as calculated in terms of polydimethylsiloxane.
    Type: Application
    Filed: October 31, 2002
    Publication date: March 3, 2005
    Inventors: Yoshio Terada, Makoto Namikawa
  • Publication number: 20050042958
    Abstract: The invention provides cleaning sheets for use in cleaning, e.g., various substrate-processing apparatus, systems for conveying exposure masks (reticles) in microfabrication, etc., and a method of cleaning these with the cleaning sheets. A cleaning sheet which comprises a sheet material comprising a thermoset resin layer having porosity and, formed on one side of the sheet material, a pressure-sensitive adhesive layer comprising a thermoplastic resin.
    Type: Application
    Filed: August 19, 2003
    Publication date: February 24, 2005
    Inventors: Makoto Namikawa, Yoshio Terada
  • Publication number: 20040265594
    Abstract: A cleaning sheet which comprises a cleaning layer having a tensile stress at 10% strain of from 0.3 to 3,000 N/mm2 or a carrying member with a cleaning function wherein at least one side of the carrying member has a cleaning layer having a tensile stress at 10% strain of from 0.3 to 3,000 N/mm2, particularly, a cleaning sheet or a carrying member with a cleaning function of the aforementioned constructions, wherein the aforementioned cleaning layer comprises a resin layer having been hardened by an active energy source or a polymer resin having heat resistance.
    Type: Application
    Filed: June 24, 2004
    Publication date: December 30, 2004
    Applicant: NITTO DENKO CORPORATION
    Inventors: Yoshio Terada, Eiji Toyoda, Makoto Namikawa
  • Patent number: 6821620
    Abstract: A cleaning sheet has a cleaning layer having a surface resistivity not less than 1×1013 &OHgr;/□. In a method of manufacturing a conveying member with a cleaning function, for sticking the cleaning sheet, in which the cleaning layer formed of an adhesive that is polymerized/cured by an active energy is provided onto one surface of a base material and an ordinary adhesive layer is provided onto the other surface thereof, onto the conveying member via an ordinary adhesive layer to have a shape larger than the shape of the conveying member and then cutting the cleaning sheet along a shape of the conveying member, wherein a polymerizing/curing reaction of the cleaning layer is carried out after the cleaning sheet is cut out into the shape of the conveying member.
    Type: Grant
    Filed: December 13, 2002
    Date of Patent: November 23, 2004
    Assignee: Nitto Denko Corporation
    Inventors: Makoto Namikawa, Yoshio Terada, Eiji Toyoda