Patents by Inventor Takayoshi Tanabe

Takayoshi Tanabe 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: 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
  • Publication number: 20040106692
    Abstract: A photocurable resin composition suitable for use in three-dimensional photofabrication comprising (A) a cationically polymerizable organic compound, (B) a cationic photoinitiator, and (C) a (co)polymer obtainable by (co)polymerization of monomers comprising at least one (meth)acrylate-group comprising monomer.
    Type: Application
    Filed: October 3, 2003
    Publication date: June 3, 2004
    Applicants: DSM N.V., JSR Corporation, Japan Fine Coatings Co., Ltd.
    Inventors: Tetsuya Yamamura, Takayoshi Tanabe, Takashi Ukachi
  • Publication number: 20040059013
    Abstract: The invention relates to a photocurable resin composition comprising: (A) a di or more functional urethane (meth)acrylate compound; (B) a monofunctional (meth)acrylate; (C) a photoinitiator; and (D) a polyoxyalkylene alkyl ether phosphate represented by the following formula (2): 1
    Type: Application
    Filed: July 12, 2002
    Publication date: March 25, 2004
    Inventors: Takayoshi Tanabe, Jiro Ueda, Tetsuya Yamamura, Takashi Ukachi
  • 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
  • Patent number: 6685869
    Abstract: A photocurable resin composition suitable for use in three-dimensional photofabrication comprising (A) a cationically polymerizable organic compound, (B) a cationic photoinitiator, and (C) a (co)polymer obtainable by (co)polymerization of monomers comprising at least one (meth)acrylate-group comprising monomer. A process for producing a three-dimensional object which comprises the use of a washing agent having a Hansen-solubility between 27-35 (Mpa)½.
    Type: Grant
    Filed: May 30, 2002
    Date of Patent: February 3, 2004
    Assignees: DSM N.V., JSR Corporation, Japan Fine Coatings Co. Ltd.
    Inventors: Tetsuya Yamamura, Takayoshi Tanabe, Takashi Ukachi
  • Publication number: 20040010049
    Abstract: The present invention provides an adhesive composition for optical disks comprising
    Type: Application
    Filed: July 24, 2003
    Publication date: January 15, 2004
    Inventors: Atsuya Takahashi, Masakatsu Ukon, Takayoshi Tanabe, Takashi Ukachi
  • Publication number: 20030059708
    Abstract: A photocurable resin composition suitable for use in three-dimensional photofabrication comprising (A) a cationically polymerizable organic compound, (B) a cationic photoinitiator, and (C) a (co)polymer obtainable by (co)polymerization of monomers comprising at least one (meth)acrylate-group comprising monomer.
    Type: Application
    Filed: May 30, 2002
    Publication date: March 27, 2003
    Inventors: Tetsuya Yamamura, 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
  • Publication number: 20030004222
    Abstract: Subject
    Type: Application
    Filed: April 22, 2002
    Publication date: January 2, 2003
    Inventors: Takayoshi Tanabe, Atsuya Takahashi, Yuichi Takehana, Takashi Ukachi
  • Publication number: 20020132872
    Abstract: Photocurable resin composition for photofabrication of three-dimensional objects comprising
    Type: Application
    Filed: October 18, 2001
    Publication date: September 19, 2002
    Inventors: Tetsuya Yamamura, Yukitoshi Kato, Takayoshi Tanabe, Takashi Ukachi
  • Publication number: 20020037976
    Abstract: To provide a photo curable resin composition comprising (A) a cationically polymerizable organic compound, (B) a cationic photopolymerization initiator, (C) a polyol having two or more hydroxyl groups in the molecule, and (D) an organotin compound.
    Type: Application
    Filed: July 11, 2001
    Publication date: March 28, 2002
    Inventors: Hitomi Nomiyama, Yuichi Takehana, Takashi Ukachi, Takayoshi Tanabe
  • Patent number: 6357888
    Abstract: A surface illuminant device includes a surface illuminant having a light distribution characteristic with no directivity relative to specific directions, and a prism sheet having a plurality of prisms each having a predetermined apical angle. The prism sheet is placed on the light emission side of the surface illuminant. One side of the prism sheet on which a plurality of prisms are placed is opposite to the light emission side of the surface illuminant. Accordingly, light can be emitted in a plurality of specific directions in concentrative manner to enhance luminance in that plurality of directions. Further, the surface illuminant device includes an optical sheet which condenses the incident light. In the luminance distribution (light distribution characteristic) thus obtained, the luminance gently decreases in the vicinity of the directions in which light is emitted in concentrative manner.
    Type: Grant
    Filed: September 22, 1999
    Date of Patent: March 19, 2002
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Manabu Takata, Takayoshi Tanabe
  • Publication number: 20020012754
    Abstract: A method of coating a resin mold is provided. The method can produce a resin mold with excellent releasability and durability, even if the molded resin material comprises a functional group that is reactive with the functional group remaining near the molding surface of the resin mold.
    Type: Application
    Filed: May 21, 2001
    Publication date: January 31, 2002
    Inventors: Tetsuya Yamamura, Yukitoshi Kato, Takashi Ukachi, Takayoshi Tanabe
  • Patent number: 6235446
    Abstract: A radiation sensitive resin composition comprising (A) a copolymer possessing recurring units of the formulas (1), (2), and (3), which turns alkali soluble in the presence of acid and (B) a photosensitive acid generator. Because the composition can resolve line-and-space patterns, isolated patterns, and contact hole patterns with satisfactory appearance and high resolution, it is useful as a chemically amplified positive resist for use in the manufacture of semiconductor devices.
    Type: Grant
    Filed: August 14, 1998
    Date of Patent: May 22, 2001
    Assignee: JSR Corporation
    Inventors: Toshiaki Ikemura, Eiichi Kobayashi, Takayoshi Tanabe, Shin-ichiro Iwanaga
  • Patent number: 6136500
    Abstract: Positive as well as negative radiation sensitive resin compositions that, in addition to being capable of providing excellent resolution and pattern profile, are particularly excellent in avoiding the problems of "nano-edge roughness" or "coating surface roughness". The positive type radiation sensitive resin composition comprises (A) (a) an acid-decomposable group-containing resin, or (b) an alkali-soluble resin and an alkali dissolution controller, and (B) a photoacid generator comprising "a compound that upon exposure to radiation generates a carboxylic acid having a boiling point of 150.degree. C. or higher", and "a compound that upon exposure to radiation generates an acid other than a carboxylic acid". The negative type radiation sensitive resin composition comprises (C) an alkali-soluble resin, (D) a cross-linking agent, and the component (B) as described above.
    Type: Grant
    Filed: August 18, 1998
    Date of Patent: October 24, 2000
    Assignee: JSR Corporation
    Inventors: Eiichi Kobayashi, Makoto Shimizu, Takayoshi Tanabe, Shin-ichiro Iwanaga
  • Patent number: 6120972
    Abstract: A radiation-sensitive resin composition comprising (A) a copolymer which comprises (a) a repeating unit (I) formed by cleavage of a carbon--carbon double bond of a monomer having one polymerizable carbon--carbon double bond and (b) a repeating unit (II) formed by cleavage of a carbon--carbon double bond of a monomer having two or more polymerizable carbon--carbon double bonds and at least one divalent group decomposed by an acid of the following formulas (1) or (2), ##STR1## wherein R.sup.1, R.sup.2, R.sup.3 and R.sup.4 are an alkyl group having 1-5 carbon atoms or an aryl group having 6-14 carbon atoms individually, said monomer having a structure in which each carbon--carbon double bond combines via said divalent group, and (B) a photoacid generator.
    Type: Grant
    Filed: August 18, 1998
    Date of Patent: September 19, 2000
    Assignee: JSR Corporation
    Inventors: Shin-ichiro Iwanaga, Eiichi Kobayashi, Takayoshi Tanabe, Kazuo Kawaguchi
  • Patent number: 6066920
    Abstract: An illumination device includes a cold cathode fluorescent tube having a heat capacity of 0.035 Wsec/.degree. C. or less per unit length (1 cm) of a glass tube of a fluorescent section of the cold cathode fluorescent tube. The illumination device has a superior operation characteristic at a low temperature. The device is driven by a method and is implemented in a display device.
    Type: Grant
    Filed: January 5, 1998
    Date of Patent: May 23, 2000
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Hiroshi Torihara, Takayoshi Tanabe, Kenichi Ukai, Nobuyuki Takahashi
  • Patent number: 5994022
    Abstract: A radiation sensitive resin composition useful as a chemically amplified positive tone resist is provided. The composition comprises (A) a copolymer which becomes soluble in an alkali developing solution by the action of an acid, the copolymer containing a recurring unit (I) having a structure which is decomposed by the action of an acid and increases the solubility in an alkaline developing solution and a recurring unit(II) obtained from a compound having at least two (meth)acryloyl groups in the molecule by the cleavage of the carbon-carbon double bond, and (B) a photoacid generator which produces an acid on being irradiated by a radiation. The composition exhibits high resolution, superb capability of producing superior pattern forms, and excellent resistance to PED, and high process stability, is affected by a standing wave only to a minimum extent, and possessed prominent heat resistance.
    Type: Grant
    Filed: November 6, 1997
    Date of Patent: November 30, 1999
    Assignee: JSR Corporation
    Inventors: Takayoshi Tanabe, Eiichi Kobayashi, Makoto Shimizu, Shin-ichiro Iwanaga
  • Patent number: 5962180
    Abstract: A radiation sensitive composition comprising (A) a copolymer comprising recurring units of a p-hydroxystyrene unit and a styrene unit having an acetal group or a ketal group at the p-position, (B) a copolymer comprising recurring units of a t-butyl (meth)acrylate unit and a p-hydroxystyrene unit, and (C) a radiation sensitive acid-generating agent.
    Type: Grant
    Filed: February 26, 1997
    Date of Patent: October 5, 1999
    Assignee: JSR Corporation
    Inventors: Shinichiro Iwanaga, Akihiko Sakurai, Takayoshi Tanabe, Akira Tsuji
  • Patent number: 5952150
    Abstract: A positive-tone or negative-tone radiation sensitive resin composition which allows easy preparation of a resist, exhibits superior storage stability, high sensitivity, and high resolution capability, and is capable of producing excellent resist patterns. The positive-tone type composition comprises (A) a disulfonylmethane derivative in which the main chain with two sulfonyl groups bonded forms a three to eleven member cyclic carbon structure and (B) (a) a resin protected by an acid decomposable group or (b) an alkali-soluble resin and an alkali-solubility control agent. The negative-tone type composition comprises the component (A), (C) an alkali-soluble resin, and (D) a cross-linking agent.
    Type: Grant
    Filed: July 14, 1997
    Date of Patent: September 14, 1999
    Assignee: JSR Corporation
    Inventors: Yoshihisa Ohta, Yong Wang, Takayoshi Tanabe, Shin-ichiro Iwanaga