Patents by Inventor Naotaka Kubota

Naotaka Kubota 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: 9618786
    Abstract: In an electro-optical device 100, a color filter substrate 20 is provided with colored pixels, which are: a red pixel 2(R) with a colored layer 28(R) formed inside a concave portion 25(R) formed in a first surface 20s of a light-transmissive substrate 20d, a green pixel 2(G) with a colored layer 28(G) formed inside a concave portion 25(G) formed in said surface, and a blue pixel 2(B) with a colored layer 28(B) formed inside a concave portion 25(B) formed in said surface. In addition, in the substrate 20d, a non-colored pixel 2(W), at which no colored layer is provided, is provided outside the concave portion 25(R), 25(G), 25(B) at a position where the thickness of the substrate 20d is greater than that at the colored pixels.
    Type: Grant
    Filed: July 17, 2014
    Date of Patent: April 11, 2017
    Assignee: Seiko Epson Corporation
    Inventors: Reiko Wachi, Hidetoshi Ushiyama, Naotaka Kubota
  • Publication number: 20170005144
    Abstract: An organic EL device includes an organic light-emitting layer provided above a first substrate; a protective layer provided above the organic light-emitting layer; a color filter provided on the protective layer; and a second substrate adhered to the color filter via an adhesive, in which a colored layer includes a first colored layer, a second colored layer, and a third colored layer, the color filter includes a first region in which the first colored layer, the second colored layer, and the third colored layer are respectively arranged as single colors and a second region in which the first colored layer, the second colored layer, and the third colored layer are arranged in a layered manner, and a height difference-relieving layer is provided between the color filter and the adhesive.
    Type: Application
    Filed: April 29, 2016
    Publication date: January 5, 2017
    Applicant: SEIKO EPSON CORPORATION
    Inventors: Suguru AKAGAWA, Narumi ISHIBASHI, Naotaka KUBOTA
  • Publication number: 20160170260
    Abstract: In an electro-optical device 100, a color filter substrate 20 is provided with colored pixels, which are: a red pixel 2(R) with a colored layer 28(R) formed inside a concave portion 25(R) formed in a first surface 20s of a light-transmissive substrate 20d, a green pixel 2(G) with a colored layer 28(G) formed inside a concave portion 25(G) formed in said surface, and a blue pixel 2(B) with a colored layer 28(B) formed inside a concave portion 25(B) formed in said surface. In addition, in the substrate 20d, a non-colored pixel 2(W), at which no colored layer is provided, is provided outside the concave portion 25(R), 25(G), 25(B) at a position where the thickness of the substrate 20d is greater than that at the colored pixels.
    Type: Application
    Filed: July 17, 2014
    Publication date: June 16, 2016
    Inventors: Reiko Wachi, Hidetoshi Ushiyama, Naotaka Kubota
  • Publication number: 20150293173
    Abstract: Deterioration in operation performance due to a fault diagnosis is prevented. A semiconductor device 90 according to the present invention includes a plurality of CPU cores 91 to 94 each including a scan chain, and a diagnostic test circuit 95 that performs a scan test for the plurality of CPU cores 91 to 94 by using the scan chain of the CPU core. The diagnostic test circuit 95 performs a scan test for each of the plurality of CPU cores 91 to 94 in a predetermined order on a periodic basis so that execution time periods of the scan tests do not overlap each other.
    Type: Application
    Filed: April 1, 2015
    Publication date: October 15, 2015
    Inventors: Yukitoshi TSUBOI, Hideo NAGANO, Hiroshi NAGAOKA, Yusuke MATSUNAGA, Yutaka IGAKU, Naotaka KUBOTA
  • Publication number: 20150102376
    Abstract: A light-emitting device includes a light-emitting element disposed in a display region and including a first electrode, a second electrode, and a light-emitting functional layer. The light-emitting device includes a wiring formed in a periphery of the display region and that is electrically connected to the second electrode, and a filter layer having a first color filter that overlaps the light-emitting element and a first layer that overlaps the peripheral wiring. The first color filter and the first layer are formed from a first colored layer that transmits light having a first wavelength.
    Type: Application
    Filed: October 8, 2014
    Publication date: April 16, 2015
    Inventors: Takashi TOYA, Takeshi KOSHIHARA, Naotaka KUBOTA, Ryoichi NOZAWA
  • Patent number: 8293449
    Abstract: There is provided a positive type resist composition comprising (A) a resin component with only units derived from an acrylate ester in the principal chain, for which the solubility in alkali increases under the action of acid, (B) an acid generator component which generates acid on exposure, and (C) an organic solvent component, wherein the resin component (A) is a copolymer comprising (a1) a structural unit derived from an acrylate ester comprising, as an acid dissociable dissolution inhibiting group on a side chain, a polycyclic dissolution inhibiting group which is eliminated more easily than a 2-methyl-2-adamantyl group, (a2) a structural unit derived from an acrylate ester comprising a lactone containing polycyclic group on a side chain, and (a3) a structural unit derived from an acrylate ester comprising a hydroxyl group containing polycyclic group on a side chain; as well as a resist pattern formation method using such a composition.
    Type: Grant
    Filed: November 29, 2002
    Date of Patent: October 23, 2012
    Assignee: Tokyo Ohka Kogyo Co., Ltd.
    Inventors: Takeshi Iwai, Naotaka Kubota, Satoshi Fujimura, Hideo Hada
  • Patent number: 7723007
    Abstract: The present invention provides a polymer compound which can constitute a photoresist composition which is capable of having an excellent resolution, forming a fine pattern with a good rectangularity, obtaining favorable resist characteristics even when acid strength of a acid generated from an acid generator is weak, and having favorable sensitivity; a photoresist composition including the polymer compound; and a resist pattern formation method using the photoresist composition.
    Type: Grant
    Filed: January 28, 2005
    Date of Patent: May 25, 2010
    Assignee: Tokyo Ohka Kogyo Co., Ltd.
    Inventors: Toshiyuki Ogata, Syogo Matsumaru, Yohei Kinoshita, Hideo Hada, Daiju Shiono, Hiroaki Shimizu, Naotaka Kubota
  • Patent number: 7501221
    Abstract: There is provided a positive type resin composition comprising (A) a resin component comprising within the principal chain a structural unit derived from a (meth)acrylate ester and incorporating an acid dissociable, dissolution inhibiting group containing a polycyclic group on an ester side chain section, for which the solubility in alkali increases under the action of acid, (B) an acid generator component which generates acid on exposure, and (C) an organic solvent, wherein the component (A) comprises both a structural unit derived from a methacrylate ester and a structural unit derived from an acrylate ester. According to such a resist composition, a resist pattern can be formed which displays little surface roughness and line edge roughness on etching, and also offers excellent resolution and a wide depth of focus range.
    Type: Grant
    Filed: February 2, 2006
    Date of Patent: March 10, 2009
    Assignee: Tokyo Ohka Kogyo Co., Ltd.
    Inventors: Takeshi Iwai, Naotaka Kubota, Satoshi Fujimura, Miwa Miyairi, Hideo Hada
  • Patent number: 7435530
    Abstract: A positive type resin composition comprising (A) a resin component comprising within the principal chain a structural unit derived from a (meth)acrylate ester and incorporating an acid dissociable, dissolution inhibiting group containing a polycyclic group on an ester side chain section, for which the solubility in alkali increases under the action of acid, (B) an acid generator component which generates acid on exposure, and (C) an organic solvent, wherein the component (A) comprises both a structural unit derived from a methacrylate ester and a structural unit derived from an acrylate ester. According to such a resist composition, a resist pattern can be formed which displays little surface roughness and line edge roughness on etching, and also offers excellent resolution and a wide depth of focus range.
    Type: Grant
    Filed: January 9, 2007
    Date of Patent: October 14, 2008
    Assignee: Tokyo Ohka Kogyo Co., Ltd.
    Inventors: Takeshi Iwai, Naotaka Kubota, Satoshi Fujimura, Miwa Miyairi, Hideo Hada
  • Publication number: 20080166655
    Abstract: The present invention provides a polymer compound which can constitute a photoresist composition which is capable of having an excellent resolution, forming a fine pattern with a good rectangularity, obtaining favorable resist characteristics even when acid strength of a acid generated from an acid generator is weak, and having favorable sensitivity; a photoresist composition including the polymer compound; and a resist pattern formation method using the photoresist composition.
    Type: Application
    Filed: January 28, 2005
    Publication date: July 10, 2008
    Inventors: Toshiyuki Ogata, Syogo Matsumaru, Yohei Kinoshita, Hideo Hada, Daiju Shiono, Hiroaki Shimizu, Naotaka Kubota
  • Patent number: 7390612
    Abstract: There is provided a positive type resin composition comprising (A) a resin component comprising within the principal chain a structural unit derived from a (meth)acrylate ester and incorporating an acid dissociable, dissolution inhibiting group containing a polycyclic group on an ester side chain section, for which the solubility in alkali increases under the action of acid, (B) an acid generator component which generates acid on exposure, and (C) an organic solvent, wherein the component (A) comprises both a structural unit derived from a methacrylate ester and a structural unit derived from an acrylate ester. According to such a resist composition, a resist pattern can be formed which displays little surface roughness and line edge roughness on etching, and also offers excellent resolution and a wide depth of focus range.
    Type: Grant
    Filed: February 2, 2006
    Date of Patent: June 24, 2008
    Assignee: Tokyo Ohka Kogyo Co., Ltd.
    Inventors: Takeshi Iwai, Naotaka Kubota, Satoshi Fujimura, Miwa Miyairi, Hideo Hada
  • Patent number: 7326515
    Abstract: There is provided a positive type resin composition comprising (A) a resin component comprising within the principal chain a structural unit derived from a (meth)acrylate ester and incorporating an acid dissociable, dissolution inhibiting group containing a polycyclic group on an ester side chain section, for which the solubility in alkali increases under the action of acid, (B) an acid generator component which generates acid on exposure, and (C) an organic solvent, wherein the component (A) comprises both a structural unit derived from a methacrylate ester and a structural unit derived from an acrylate ester. According to such a resist composition, a resist pattern can be formed which displays little surface roughness and line edge roughness on etching, and also offers excellent resolution and a wide depth of focus range.
    Type: Grant
    Filed: December 7, 2004
    Date of Patent: February 5, 2008
    Assignee: Tokyo Ohka Kogyo Co., Ltd.
    Inventors: Takeshi Iwai, Naotaka Kubota, Satoshi Fujimura, Miwa Miyairi, Hideo Hada
  • Patent number: 7323287
    Abstract: There is provided a positive type resin composition comprising (A) a resin component comprising within the principal chain a structural unit derived from a (meth)acrylate ester and incorporating an acid dissociable, dissolution inhibiting group containing a polycyclic group on an ester side chain section, for which the solubility in alkali increases under the action of acid, (B) an acid generator component which generates acid on exposure, and (C) an organic solvent, wherein the component (A) comprises both a structural unit derived from a methacrylate ester and a structural unit derived from an acrylate ester. According to such a resist composition, a resist pattern can be formed which displays little surface roughness and line edge roughness on etching, and also offers excellent resolution and a wide depth of focus range.
    Type: Grant
    Filed: February 2, 2006
    Date of Patent: January 29, 2008
    Assignee: Tokyo Ohka Kogyo Co., Ltd
    Inventors: Takeshi Iwai, Naotaka Kubota, Satoshi Fujimura, Miwa Miyairi, Hideo Hada
  • Patent number: 7316885
    Abstract: There are provided a method of forming a resist pattern that enables the resist pattern to be formed with good control of the pattern size, as well as a positive resist composition used in the method, and a layered product formed using the positive resist composition. In the above method a positive resist composition comprising a resin component (A), which contains a structural unit (a1) derived from a (meth)acrylate ester represented by a general formula (I) shown below, and displays increased alkali solubility under action of acid, and an acid generator component (B) that generates acid on exposure is applied to a substrate, a prebake is conducted, the resist composition is selectively exposed, post exposure baking (PEB) is conducted, alkali developing is then used to form a resist pattern, and the pattern size of the thus produced resist pattern is then narrowed by heat treatment.
    Type: Grant
    Filed: December 1, 2003
    Date of Patent: January 8, 2008
    Assignee: Tokyo Ohka Kogyo Co., Ltd
    Inventors: Hideo Hada, Miwa Miyairi, Naotaka Kubota, Takeshi Iwai
  • Patent number: 7316888
    Abstract: There is provided a positive type resin composition comprising (A) a resin component comprising within the principal chain a structural unit derived from a (meth)acrylate ester and incorporating an acid dissociable, dissolution inhibiting group containing a polycyclic group on an ester side chain section, for which the solubility in alkali increases under the action of acid, (B) an acid generator component which generates acid on exposure, and (C) an organic solvent, wherein the component (A) comprises both a structural unit derived from a methacrylate ester and a structural unit derived from an acrylate ester. According to such a resist composition, a resist pattern can be formed which displays little surface roughness and line edge roughness on etching, and also offers excellent resolution and a wide depth of focus range.
    Type: Grant
    Filed: February 2, 2006
    Date of Patent: January 8, 2008
    Assignee: Tokyo Ohka Kogyo Co., Ltd
    Inventors: Takeshi Iwai, Naotaka Kubota, Satoshi Fujimura, Miwa Miyairi, Hideo Hada
  • Patent number: 7316889
    Abstract: There is provided a positive type resin composition comprising (A) a resin component comprising within the principal chain a structural unit derived from a (meth)acrylate ester and incorporating an acid dissociable, dissolution inhibiting group containing a polycyclic group on an ester side chain section, for which the solubility in alkali increases under the action of acid, (B) an acid generator component which generates acid on exposure, and (C) an organic solvent, wherein the component (A) comprises both a structural unit derived from a methacrylate ester and a structural unit derived from an acrylate ester. According to such a resist composition, a resist pattern can be formed which displays little surface roughness and line edge roughness on etching, and also offers excellent resolution and a wide depth of focus range.
    Type: Grant
    Filed: February 2, 2006
    Date of Patent: January 8, 2008
    Assignee: Tokyo Ohka Kogyo Co., Ltd.
    Inventors: Takeshi Iwai, Naotaka Kubota, Satoshi Fujimura, Miwa Miyairi, Hideo Hada
  • Publication number: 20070190455
    Abstract: A positive type resin composition comprising (A) a resin component comprising within the principal chain a structural unit derived from a (meth)acrylate ester and incorporating an acid dissociable, dissolution inhibiting group containing a polycyclic group on an ester side chain section, for which the solubility in alkali increases under the action of acid, (B) an acid generator component which generates acid on exposure, and (C) an organic solvent, wherein the component (A) comprises both a structural unit derived from a methacrylate ester and a structural unit derived from an acrylate ester. According to such a resist composition, a resist pattern can be formed which displays little surface roughness and line edge roughness on etching, and also offers excellent resolution and a wide depth of focus range.
    Type: Application
    Filed: January 9, 2007
    Publication date: August 16, 2007
    Applicant: Tokyo Ohka Kogyo Co., Ltd.
    Inventors: Takeshi Iwai, Naotaka Kubota, Satoshi Fujimura, Miwa Miyairi, Hideo Hada
  • Patent number: 7129020
    Abstract: Disclosed is a liquid coating composition for forming a top antireflective film that contains a polymer, the polymer containing, as a structural unit, a (meth)acrylate unit that has at least one polycyclic hydrocarbon group on its side chain and becomes more soluble to alkali by the action of an acid, the liquid coating composition comprising: (a) a water-soluble, film-forming component; (b) at least one fluorine-based compound selected from a perfluoroalkylcarboxylic acid having 4 or more carbon atoms and a perfluoroalkylsulfonic acid having 5 or more carbon atoms; and (c) a fluoroalkylsulfonic acid having 1–4 carbon atoms and/or an acidic compound consisting of a hydrocarbon having 1–4 carbon atoms in which one or more hydrogen atoms are substituted with a fluoloalkylsulfonyl group(s), with the proviso that one or more carbon atoms therein may be substituted with a nitrogen atom(s).
    Type: Grant
    Filed: May 23, 2003
    Date of Patent: October 31, 2006
    Assignee: Tokyo Ohka Kogyo Co., Ltd.
    Inventors: Kazumasa Wakiya, Naotaka Kubota, Shigeru Yokoi, Takayuki Haraguchi
  • Publication number: 20060154181
    Abstract: There are provided a method of forming a resist pattern that enables the resist pattern to be formed with good control of the pattern size, as well as a positive resist composition used in the method, and a layered product formed using the positive resist composition. In the above method a positive resist composition comprising a resin component (A), which contains a structural unit (a1) derived from a (meth)acrylate ester represented by a general formula (I) shown below, and displays increased alkali solubility under action of acid, and an acid generator component (B) that generates acid on exposure is applied to a substrate, a prebake is conducted, the resist composition is selectively exposed, post exposure baking (PEB) is conducted, alkali developing is then used to form a resist pattern, and the pattern size of the thus produced resist pattern is then narrowed by heat treatment.
    Type: Application
    Filed: December 1, 2003
    Publication date: July 13, 2006
    Inventors: Hideo Hada, Miwa Miyairi, Naotaka Kubota, Takeshi Iwai
  • Patent number: 7074543
    Abstract: There is provided a positive type resin composition comprising (A) a resin component comprising within the principal chain a structural unit derived from a (meth)acrylate ester and incorporating an acid dissociable, dissolution inhibiting group containing a polycyclic group on an ester side chain section, for which the solubility in alkali increases under the action of acid, (B) an acid generator component which generates acid on exposure, and (C) an organic solvent, wherein the component (A) comprises both a structural unit derived from a methacrylate ester and a structural unit derived from an acrylate ester. According to such a resist composition, a resist pattern can be formed which displays little surface roughness and line edge roughness on etching, and also offers excellent resolution and a wide depth of focus range.
    Type: Grant
    Filed: November 29, 2002
    Date of Patent: July 11, 2006
    Assignee: Tokyo Ohka Kogyo Co., Ltd.
    Inventors: Takeshi Iwai, Naotaka Kubota, Satoshi Fujimura, Miwa Miyairi, Hideo Hada