Patents by Inventor Takenori Kumagai

Takenori Kumagai 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: 20160146993
    Abstract: An object of the present invention is to provide a dielectric multilayer coating film with high weather-resistant adhesion. The dielectric multilayer coating film includes a dielectric multilayer coating having a stack of high and low refractive index layers; and a hard coat layer, wherein at least one of the high and low refractive index layers contains a compound with photocatalytic activity, and when the dielectric multilayer coating is divided into two halves along its thickness direction, there is a difference of 0.1% to less than 10% between the volume shrinkage of the half distal to the hard coat layer and the volume shrinkage of the hard coat layer.
    Type: Application
    Filed: June 10, 2014
    Publication date: May 26, 2016
    Inventors: Takenori KUMAGAI, Taro KONUMA, Haruka MASUDA
  • Patent number: 9110228
    Abstract: A film mirror which is excellent in anti-staining and scratch resistance and can maintain good specular reflectance for sunlight over long period of time is disclosed, comprising a silver reflection layer provided on at least one side of a resin substrate, wherein the film mirror comprises an outermost layer on a light incident side and a surface of the outermost layer exhibits an electric surface resistivity value of 1.0×10?3 to 1.1×109 ohms per square, a pencil hardness of not less than H and less than 6H, and not more than 30 scratches in a steel wool test under a load of 500 g/cm2, and also disclosed are a production method thereof and a reflection device for solar power generation by use thereof.
    Type: Grant
    Filed: January 27, 2011
    Date of Patent: August 18, 2015
    Assignee: KONICA MINOLTA ADVANCED LAYERS, INC.
    Inventor: Takenori Kumagai
  • Publication number: 20150177433
    Abstract: [Problem] To provide a an infrared shielding film which realizes a balance between the hard coating properties of the cured resin layer and the suppression of peeling or cracking of the film, while having heat shielding characteristics of an infrared shielding film. [Solution] An infrared shielding film including a substrate; an infrared reflecting layer having at least one or more low refractive index layers and at least one or more high refractive index layers laminated therein; and a cured resin layer formed at the outermost surface, laminated together, the cured resin layer containing inorganic nanoparticles, in which the hardness obtainable by the pencil hardness test described in JIS K5600-5-4:1999 is from 2B to 3H; the number of scratches obtainable by a steel wool test (load 500 g/cm2, 10 reciprocations) is 15 or less; and the mandrel diameter at which the hard coated surface begins to crack in the bending test described in JIS K5600-5-1:1999 (cylindrical mandrel method) is 15 mm or less.
    Type: Application
    Filed: July 8, 2013
    Publication date: June 25, 2015
    Inventors: Takenori Kumagai, Taro Konuma, Haruka Masuda
  • Patent number: 9057867
    Abstract: A hard coat layer 8 is provided on an outermost surface layer of a film mirror 10 having a first resin base material 1 and a silver reflection layer 3, and the hard coat layer 8 contains a polyfunctional acrylic monomer and a silicon resin having an active energy ray reactive unsaturated group.
    Type: Grant
    Filed: March 28, 2012
    Date of Patent: June 16, 2015
    Assignee: KONICA MINOLTA, INC.
    Inventor: Takenori Kumagai
  • Publication number: 20150124314
    Abstract: In a case where a functional film that includes an acrylic layer 7, an intermediate layer 8, and a protection layer 9 adjacent to one another on a resin substrate 3, and has the protection layer 9 on its outermost surface is manufactured, the protection layer 9 contains at least a polysiloxane compound, and the intermediate layer 8 contains at least one of the following materials: polyvinyl alcohol resin, polyvinyl acetate, cellulose, and water glass. With this structure, interlayer coupling between the acrylic layer 7 and the intermediate layer 8, and interlayer coupling between the intermediate layer 8 and the protection layer 9 can be strengthened, and detachment of each of the acrylic layer 7, the intermediate layer 8, and the protection layer 9 can be reduced. Accordingly, a functional film that is highly resistant to damage can be obtained.
    Type: Application
    Filed: May 30, 2013
    Publication date: May 7, 2015
    Applicant: Konica Minolta, Inc.
    Inventors: Taro Konuma, Takenori Kumagai
  • Publication number: 20150116820
    Abstract: Provided is a film mirror for solar light reflection, which is so adapted that a protective layer containing a resin is arranged on the solar light incident side relative to a resin-film-like support and a silver reflective layer. The resin has a benzotriazole-type ultraviolet-ray-absorbing group and/or a triazine-type ultraviolet-ray-absorbing group.
    Type: Application
    Filed: December 19, 2012
    Publication date: April 30, 2015
    Inventor: Takenori Kumagai
  • Publication number: 20140133028
    Abstract: Provided is a solar reflective mirror (20) having a silver reflective layer (3) provided on a resin base (1), in which the solar reflective mirror (20) includes a hard coat layer (8) provided on a topmost surface on a light-incident side of the mirror, and an antistatic layer (7) is provided between the silver reflective layer (3) and the hard coat layer (8), preferably so as to be adjacent to the hard coat layer (8).
    Type: Application
    Filed: July 11, 2012
    Publication date: May 15, 2014
    Applicant: KONICA MINOLTA , INC.
    Inventor: Takenori Kumagai
  • Publication number: 20130335840
    Abstract: A hard coat layer 8 is provided on an outermost surface layer of a film mirror 10 having a first resin base material 1 and a silver reflection layer 3, and the hard coat layer 8 contains a polyfunctional acrylic monomer and a silicon resin having an active energy ray reactive unsaturated group.
    Type: Application
    Filed: March 28, 2012
    Publication date: December 19, 2013
    Applicant: KONICA MINOLTA, INC.
    Inventor: Takenori Kumagai
  • Publication number: 20130293951
    Abstract: A film mirror (20) for solar thermal power generation, which has a reflecting layer (3) on a resin base material (1), is allowed to have a configuration in which an antifouling layer (8) is provided on an outermost layer on a light incident side. Inorganic fine particles having different particle diameters, for example, ranging from 0.5 nm to 100 nm, are dispersed in the antifouling layer (8).
    Type: Application
    Filed: January 12, 2012
    Publication date: November 7, 2013
    Applicant: KONICA MINOLTA , INC.
    Inventor: Takenori Kumagai
  • Publication number: 20120287521
    Abstract: A film mirror which is excellent in anti-staining and scratch resistance and can maintain good specular reflectance for sunlight over long period of time is disclosed, comprising a silver reflection layer provided on at least one side of a resin substrate, wherein the film mirror comprises an outermost layer on a light incident side and a surface of the outermost layer exhibits an electric resistance value of 1.0×10?3 to 1.1×109 ?·?, a pencil hardness of not less than H and less than 6H, and not more than 30 flaws in a steel wool test under a load of 500 g/cm2, and also disclosed are a production method thereof and a reflection device for solar power generation by use thereof.
    Type: Application
    Filed: January 27, 2011
    Publication date: November 15, 2012
    Applicant: KONICA MINOLTA ADVANCED LAYERS, INC.
    Inventor: Takenori Kumagai
  • Publication number: 20120257295
    Abstract: A film mirror exhibits durability under extreme environments for a long duration together with an excellent antifouling property, and which can be large-area-produced and mass-produced at low manufacturing cost, and exhibits excellent regular reflectance to sunlight, maintained for a long period of time. The film mirror has a resin substrate and, provided on the resin substrate, a silver reflection layer, a corrosion inhibitor layer, and an outermost layer. The corrosion inhibitor layer adjacent to the silver reflection layer is provided on a light reflection side of the silver reflection layer to prevent silver from corrosion, and the outermost layer includes a photocatalyst.
    Type: Application
    Filed: December 15, 2010
    Publication date: October 11, 2012
    Inventor: Takenori Kumagai
  • Patent number: 5062243
    Abstract: In an openable roof capable of opening and closing a central space having a certain point, a stationary roof section is arranged in spaced relation to the certain point of the central space. The stationary roof section has an inner periphery which defines the central space. A movable roof section is arranged on the stationary roof section and is radially movable relatively thereto toward and away from the certain point of the central space. The movable roof section is divided into a plurality of movable roof units having their respective apexes which are substantially identical in central angle with each other. In a closed position where the central space is closed by the movable roof section, the apexes of the respective movable roof units are abutted against each other and the movable roof units cooperate with each other to close the central space.
    Type: Grant
    Filed: November 24, 1989
    Date of Patent: November 5, 1991
    Assignee: Shimizu Construction Co., Ltd.
    Inventor: Takenori Kumagai
  • Patent number: 4942698
    Abstract: An openable roof includes a plurality of fixed roof members and a plurality of movable roof members. Each fixed roof member is a portion of a sphere, with a subsection removed so as to produce an opening. Each movable roof member is the above-mentioned removed subsection with a further subsection removed. The fixed roof members, constitute the lower portion of the openable roof so that a complete opening results from coincidence of the openings. The movable roof members are mounted on the lower portion of the openable roof in such a manner that each movable roof member moves along a track formed along the rim of the opening of the corresponding fixed roof member.
    Type: Grant
    Filed: November 21, 1989
    Date of Patent: July 24, 1990
    Assignee: Shimizu Construction Co., Ltd.
    Inventor: Takenori Kumagai
  • Patent number: 4697397
    Abstract: Trussed girder, roof framing using the trussed girder and method of constructing the roof framing of a building using the trussed girder. In the trussed girder, an upper chord and a lower chord are jointed through lattice members. The trussed girder includes: a prestressing steel member; and an attaching mechanism for attaching the prestressing steel member to at least one of both the upper and lower chords to longitudinally extend under tension for providing prestress to the trussed girder.
    Type: Grant
    Filed: August 6, 1986
    Date of Patent: October 6, 1987
    Assignees: Shimizu Construction Co. Ltd., Kawasaki Steel Corporation
    Inventors: Shuji Okuda, Hideo Shimomura, Kusuo Honda, Masato Kawaguchi, Yasuo Kuno, Takenori Kumagai, Nobuo Kato