Patents by Inventor Haruki Kuramashi

Haruki Kuramashi 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: 6884512
    Abstract: The invention relates to an article superior in making a waterdrop slip down a surface of the article. This article includes a substrate; and a functional film formed on a surface of the substrate. This functional film contains: (a) a silica forming a matrix of the functional film; (b) a silylated-terminal dimethyl silicone represented by the general formula [A], the dimethyl silicone being in an amount of from 0.1 wt % to 10 wt %, based on a total weight of the silica; and (c) a fluoroalkylsilane represented by the general formula [B] B(CF2)rCH2CH2Si(CH3)3-s(O?s??[B].
    Type: Grant
    Filed: July 29, 2003
    Date of Patent: April 26, 2005
    Assignee: Central Glass Company, Limited
    Inventors: Yoshinori Akamatsu, Soichi Kumon, Kaname Hatakenaka, Haruki Kuramashi, Hiroaki Arai, Shigeo Hamaguchi
  • Publication number: 20040076840
    Abstract: The invention relates to an article superior in making a waterdrop slip down a surface of the article. This article includes a substrate; and a functional film formed on a surface of the substrate. This functional film contains: (a) a silica forming a matrix of the functional film; (b) a dimethyl silicone represented by the general formula [A], the dimetyl silicone being in an amount of from 0.1 wt % to 10 wt %, based on a total weight of the silica; and (c) a fluoroalkylsilane represented by the general formula [B].
    Type: Application
    Filed: July 29, 2003
    Publication date: April 22, 2004
    Applicant: Central Glass Company, Limited
    Inventors: Yoshinori Akamatsu, Soichi Kumon, Kaname Hatakenaka, Haruki Kuramashi, Hiroaki Arai, Shigeo Hamaguchi
  • Patent number: 5683804
    Abstract: An ultraviolet and infrared absorbing glass plate includes a transparent glass substrate, a first layer formed on a first major surface of the glass substrate and a second layer formed on the first layer. The first layer is an ultraviolet and infrared absorbing film prepared by hardening a primer coating solution. The primer coating solution contains a synthetic resin, a fluorescent brightening agent, an ultraviolet absorbing agent and an infrared absorbing agent. The second layer is a film of a siloxane polymer. The glass plate has an optional water-repellent layer formed on a second major surface of the glass substrate. Long-wavelength ultraviolet rays until the upper limit of its wavelength can be substantially cut by the first layer on the glass substrate. Furthermore, the first layer is superior in infrared absorption, adhesion to the glass substrate, chemical resistance, abrasion resistance and durability.
    Type: Grant
    Filed: April 27, 1995
    Date of Patent: November 4, 1997
    Assignee: Central Glass Company, Limited
    Inventors: Toshikazu Nagashima, Haruki Kuramashi, Nobuhiko Seto, Koichi Yamamoto
  • Patent number: 5618626
    Abstract: An ultraviolet absorbing multilayer coating formed on one side of a transparent substrate includes a first layer formed on a surface of the transparent substrate and a second layer formed on the first layer. The first layer is an ultraviolet absorbing film of a hardened primer coating of a synthetic resin which is mixed with a fluorescent brightening agent and an ultraviolet absorbing agent. The second layer is a film of a siloxane polymer. An optional infrared reflecting coating is interposed between the transparent substrate and the first layer. The ultraviolet rays until the upper limit of its wavelength can be substantially absorbed by the multilayer coating.
    Type: Grant
    Filed: December 19, 1995
    Date of Patent: April 8, 1997
    Assignee: Central Glass Company, Limited
    Inventors: Toshikazu Nagashima, Haruki Kuramashi, Yasunobu Iida, Sachio Asai
  • Patent number: 5013788
    Abstract: The invention provides a liquid coating composition for forming a transparent and hard coating film on a plastic member such as a polycarbonate or polymethyl methacrylate plate. The liquid composition comprises 100 parts by weight of an organotrialkoxysilane R.sup.1 Si(OR.sup.2).sub.3, where R.sup.1 is a C.sub.1 - or C.sub.2 -alkyl group and R.sup.2 is a C.sub.1 -, C.sub.2 - or C.sub.3 -alkyl group, 5-20 parts by weight of an organotrialkoxysilane R.sup.3 Si(OR.sup.2).sub.3, where R.sup.3 is an organic group containing epoxy group, 50-200 parts by weight of an aqueous colloidal silica sol in which the content of SiO.sub.2 is 10-40 wt %, and 0.5-3 parts by weight of a dicarboxylic acid (CF.sub.2).sub.n (COOH).sub.2, where n is an integer from 1 to 5, preferably hexafluoroglutaric acid. On a surface of a plastic member a coating film of this composition is partially cured at 70.degree.-150.degree. C. to turn into a fairly hard but still pliable film.
    Type: Grant
    Filed: December 14, 1989
    Date of Patent: May 7, 1991
    Assignee: Central Glass Company, Limited
    Inventors: Toshikazu Nagashima, Haruki Kuramashi, Yoshihiro Nishida, Masahiro Hirukawa