Patents by Inventor Hideaki Takase

Hideaki Takase 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: 20050256219
    Abstract: The invention relates to a photocurable resin composition comprising: (A) (A1) a (meth)acrylate having a structure shown by the formula (1) or (2), or (A2) an epoxy compound having a structure shown by the formula (1) or (2); (B) a (meth)acrylate having three or more functional groups other than (A1); (C) a radical photoinitiator; (D) a compound having three or more cyclic ether linkages in the molecule other than (A2) and (E) a cationic photoinitiator; the invention also relates to optical parts made from the resins of the invention and use of the resin in other applications.
    Type: Application
    Filed: March 6, 2003
    Publication date: November 17, 2005
    Inventors: Hideaki Takase, Atsuya Takahashi, Takayoshi Tanabe, Shingo Itai, Satoshi Futami
  • Publication number: 20050070623
    Abstract: To provide a radiation-sensitive curable liquid resin composition having excellent applicability and capable of producing a film excelling in hardness, scratch resistance, adhesion, transparency, and appearance of the surface of the film. A curable liquid resin composition comprising: (A) particles prepared by bonding at least one oxide of an element selected from the group consisting of silicon, aluminum, zirconium, titanium, zinc, germanium, indium, tin, antimony, and cerium to a specific organic compound which comprises a polymerizable unsaturated group and a group shown by —X—C(?Y)—NH— (wherein X is NH, O, or S, and Y is O or S), and preferably a silanol group, (B) a compound having two or more polymerizable unsaturated groups in the molecule, (C) a specific alkylene glycol organic solvent, and preferably (D) a polymerization initiator.
    Type: Application
    Filed: September 26, 2002
    Publication date: March 31, 2005
    Inventors: Hideaki Takase, Yoshikazu Yamaguchi, Takayoshi Tanabe
  • Publication number: 20040157972
    Abstract: The invention relates to a curable resin composition, cured products thereof, and laminated materials.
    Type: Application
    Filed: April 2, 2004
    Publication date: August 12, 2004
    Inventors: Yoshikazu Yamaguchi, Takayoshi Tanabe, Hiroki Nakajima, Hideaki Takase
  • Patent number: 6710097
    Abstract: A photocurable resin composition comprising: (A) a urethane (meth)acrylate produced by reacting at least a polyether polyol with a number average molecular weight of 500 or more having an alkyleneoxy structure in the molecule, an organic polyisocyanate compound, and a (meth)acrylate containing a hydroxyl group; (B) a monofunctional (meth)acrylate shown by the following formula (1), wherein R1 represents a hydrogen atom or a methyl group, R2 represents —(CH2CH2O)p—, —(CH(CH3)CH2O)q—, or —CH2CH(OH)CH2O—, Y1, Y2, and Y3 individually represent a hydrogen atom, bromine atom, alkyl group having 1-10 carbon atoms, phenyl group, or —C(CH3)2C6H5—, and p and q represent integers from 0 to 10; and (C) a photoinitiator; its use and optical parts prepared from the photocurable resin composition.
    Type: Grant
    Filed: December 3, 2001
    Date of Patent: March 23, 2004
    Assignees: DSM N.V., JSR Corporation, Japan Fine Coatings Co., Ltd.
    Inventors: Hideaki Takase, Jirou Ueda, Takayoshi Tanabe, Takashi Ukachi
  • Publication number: 20030021943
    Abstract: A photocurable resin composition comprising:
    Type: Application
    Filed: December 3, 2001
    Publication date: January 30, 2003
    Inventors: Hideaki Takase, Jirou Ueda, Takayoshi Tanabe, Takashi Ukachi
  • Patent number: 6440519
    Abstract: A photocurable resin composition which comprises (A) a urethane (meth)acrylate oligomer obtained by the reaction of (a) at least one polyol compound preferably selected from the group consisting of polyester polyols and polycarbonate polyols, (b) a polyisocyanate compound, and (c) a hydroxyl group-containing (meth)acrylate compound; (B) a (meth)acrylolylphosphate; (C) a multifunctional (meth)acrylate compound; and (D) a photopolymerization initiator and, optionally, (E) an organosilyl-containing mercapto compound. The composition exhibits a fast cure speed, and the cured products obtained from the composition exhibit superior adhesion under high temperature-high humidity conditions and metal corrosion properties.
    Type: Grant
    Filed: September 25, 1998
    Date of Patent: August 27, 2002
    Assignees: DSM N.V., JSR Corporation, Japan Fine Coatings Co., Ltd.
    Inventors: Hideaki Takase, Ryoji Furuta, Toshihiko Takahashi, Takashi Ukachi, Yuichi Takehana
  • Publication number: 20020045126
    Abstract: A photo-curable resin composition suitable as a material for photo-fabricating. The composition can produce cured products with excellent mechanical strength and high heat resistance. Further disclosed is a process for fabricating a resin-based mold which provides superior molding dimensional precision and superb repetition durability. The composition comprises (A) a compound having a cyclohexene oxide structure, (B) a cationic photo-initiator, (C) an ethylenically unsaturated polymer, (D) a radical photo-initiator, and (E) spherical silica particles, and the heat distortion temperature of the cured resin produced from the photo-curable resin composition is 100° C. or higher. The process comprises preparing a resin-based mold comprising a plurality of integrally laminated layers of cured resin by repeating the step of forming a cured resin layer by selectively irradiating a photo-curable material with light, wherein the photo-curable material is the above-mentioned photo-curable resin composition.
    Type: Application
    Filed: July 16, 2001
    Publication date: April 18, 2002
    Inventors: Tsuyoshi Watanabe, Yuichi Haruta, Hideaki Takase, Takashi Ukachi
  • Publication number: 20010046644
    Abstract: The invention relates to a process for manufacturing information recording media by adhering two disks, at least one of which possesses an information recording layer, wherein a radically polymerizable photocurable resin composition is put between the two disks and the resin composition is cured to adhere the disks by irradiating light from the external periphery edge and/or internal periphery edge of said disks, wherein the resin composition has a light absorbance of 12 or less at a wavelength of 360-45 nm.
    Type: Application
    Filed: April 23, 2001
    Publication date: November 29, 2001
    Inventors: Takashi Ukachi, Hideaki Takase, Takao Yashiro
  • Publication number: 20010020049
    Abstract: A curable resin composition comprising a urethane (meth)acrylate having a molecular terminal represented by the following formula (3), 1
    Type: Application
    Filed: January 5, 2001
    Publication date: September 6, 2001
    Inventors: Hideaki Takase, Zen Komiya, Takashi Ukachi
  • Patent number: 6013714
    Abstract: Process for the manufacture of a mold for making products from fibrous materials by performing a combination of steps of(1) applying a thin layer of resin on a supporting stage(2) selectively irradiating the thin layer of resin as to cure a selected part of said resin(3) applying a further thin layer of resin, and repeating steps (2) and (3) as to obtain a three dimensional shape of a plurality of cured layers, optionally combined with either one of the steps of washing and post-curing the three dimensional shape, as to obtain the mold, wherein the resin ocmpositiona is formulated from constituents comprises at least one photoreaction monomer at least one photoinitiator at least one filler.
    Type: Grant
    Filed: September 19, 1997
    Date of Patent: January 11, 2000
    Assignees: DSM N.V., JSR Corporation, Japan Fine Coatinss Co., Ltd.
    Inventors: Yuichi Haruta, Hideaki Takase, Tsuyoshi Watanabe, Takashi Ukachi
  • Patent number: 5913004
    Abstract: Provided is an optical glass fiber coating composition which when coated on an optical glass fiber and suitably cured provides a coating having the combination of properties (i) through (iv):(i) a stable tensile modulus that is low at room temperature and over a broad range of temperatures below room temperature,(ii) an adhesion to the optical glass fiber sufficient to prevent structural defects and microbending in the optical glass fiber,(iii) the capability of being removed by stripping from the optical glass fiber substantially no residue left on the optical glass fiber, and(iv) which satisfies each of the following inequalities (I) and (II),X.ltoreq.0.2 kg/mm.sup.2 (I)X/Y.gtoreq.1/10 (II)wherein X is the tensile modulus (kg/mm.sup.2) measured at 23.degree. C. and Y is the tensile modulus (kg/mm.sup.2) measured at -40.degree. C.
    Type: Grant
    Filed: April 14, 1997
    Date of Patent: June 15, 1999
    Assignees: DSM N.V., JSR Corporation
    Inventors: Hideaki Takase, Mitsuhito Suwa, Zen Komiya, Takashi Ukachi