Patents by Inventor Takayuki Hosono

Takayuki Hosono 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: 9149837
    Abstract: A substrate having rod-like molecules on a surface thereof including: a substrate in which a pattern including a convex portion with a flat upper surface is formed on at least a portion thereof; and a plurality of rod-like molecules, which are formed into rod-like shape, are aligned in line in a direction crossing a molecular length direction of each of the rod-like molecules an the upper surface of the convex portion, and have liquid crystalline states, wherein the molecular length LR of the rod-like molecule is 2.0 or less times LN, which is a length of the rod-like molecule in the molecular length direction within the convex portion; and a method for producing a substrate having rod-like molecules on a surface thereof.
    Type: Grant
    Filed: March 6, 2013
    Date of Patent: October 6, 2015
    Assignees: National University Corporation Nara Institute of Science and Technology, Tokyo Ohka Kogyo Co., Ltd.
    Inventors: Masanobu Naito, Yusuke Nakamura, Toshiyuki Ogata, Toshikazu Takayama, Takayuki Hosono
  • Publication number: 20130236947
    Abstract: A substrate having rod-like molecules on a surface thereof including: a substrate in which a pattern including a convex portion with a flat upper surface is formed on at least a portion thereof; and a plurality of rod-like molecules, which are formed into rod-like shape, are aligned in line in a direction crossing a molecular length direction of each of the rod-like molecules an the upper surface of the convex portion, and have liquid crystalline states, wherein the molecular length LR of the rod-like molecule is 2.0 or less times LN, which is a length of the rod-like molecule in the molecular length direction within the convex portion; and a method for producing a substrate having rod-like molecules on a surface thereof.
    Type: Application
    Filed: March 6, 2013
    Publication date: September 12, 2013
    Applicants: Tokyo Ohka Kogyo Co., Ltd., National University Corporation Nara Institute of Science and Technology
    Inventors: Masanobu Naito, Yusuke Nakamura, Toshiyuki Ogata, Toshikazu Takayama, Takayuki Hosono
  • Publication number: 20090068586
    Abstract: A silsesquioxane resin, a positive resist composition, a resist laminate, and a method of forming a resist pattern that are capable of suppressing a degas phenomenon are provided, and a silicon-containing resist composition and a method of forming a resist pattern that are ideally suited to immersion lithography are also provided. The silsesquioxane resin includes structural units represented by the general shown below [wherein, R1 and R2 each represent, independently, a straight chain, branched, or cyclic saturated aliphatic hydrocarbon group; R3 represents an acid dissociable, dissolution inhibiting group containing a hydrocarbon group that includes an aliphatic monocyclic or polycyclic group; R4 represents a hydrogen atom, or a straight chain, branched, or cyclic alkyl group; X represents an alkyl group of 1 to 8 carbon atoms in which at least one hydrogen atom has been substituted with a fluorine atom; and m represents an integer from 1 to 3].
    Type: Application
    Filed: October 8, 2008
    Publication date: March 12, 2009
    Applicant: Tokyo Ohka Kogyo Co., Ltd.
    Inventors: Tsuyoshi Nakamura, Koki Tamura, Tomotaka Yamada, Taku Hirayama, Daisuke Kawana, Takayuki Hosono
  • Patent number: 7416832
    Abstract: A positive resist composition capable of forming a resist pattern having excellent shape is provided. This composition is a positive resist composition including a base resin component (A) and an acid generator component (B) generating an acid under exposure, which are dissolved in an organic solvent, wherein the base resin component (A) is a silicone resin, and the organic solvent contains propylene glycol monomethyl ether (x1) and a solvent (S2) having a boiling point higher than that of the propylene glycol monomethyl ether.
    Type: Grant
    Filed: March 28, 2005
    Date of Patent: August 26, 2008
    Assignee: Tokyo Ohka Kogyo Co., Ltd.
    Inventors: Daisuke Kawana, Tomotaka Yamada, Takayuki Hosono, Koki Tamura
  • Patent number: 7318992
    Abstract: A lift-off positive resist composition capable of forming a fine lift-off pattern is provided. This composition comprises a base resin component (A) and an acid generator component (B) generating an acid under exposure, wherein the base resin component (A) is a silicone resin.
    Type: Grant
    Filed: March 28, 2005
    Date of Patent: January 15, 2008
    Assignee: Tokyo Ohka Kogyo Co., Ltd.
    Inventors: Daisuke Kawana, Tomotaka Yamada, Hiroshi Shimbori, Koki Tamura, Tomoyuki Ando, Takayuki Hosono
  • Patent number: 7261994
    Abstract: A positive resist composition having excellent mask linearity is provided. This composition is a positive resist composition comprising a base resin component (A) and an acid generator component (B) generating an acid under exposure, wherein the base resin component (A) is a silicone resin and the acid generator component (B) contains an onium salt-based acid generator (B1) containing a perfluoroalkyl sulfonate ion having 3 or 4 carbon atoms as an anion.
    Type: Grant
    Filed: March 28, 2005
    Date of Patent: August 28, 2007
    Assignee: Tokyo Ohka Kogyo Co., Ltd.
    Inventors: Takayuki Hosono, Koki Tamura, Daisuke Kawana, Tomotaka Yamada
  • Publication number: 20070009828
    Abstract: A positive resist composition, comprising a resin component (A) that exhibits increased alkali solubility under the action of acid, and an acid generator component (B) that generates acid on exposure, wherein the component (A) includes either a silsesquioxane resin (A1) containing structural units (a1) represented by a general formula (I) shown below, structural units (a2) represented by a general formula (II) shown below, and structural units (a3) represented by a general formula (III) shown below, or a silsesquioxane resin (A2) containing structural units (al) represented by the general formula (I) shown below, and structural units (a2?) represented by a general formula (II?) shown below.
    Type: Application
    Filed: June 11, 2004
    Publication date: January 11, 2007
    Applicant: TOKYO OHKA KOGYO, CO., LTD.
    Inventors: Koki Tamura, Daisuke Kawana, Tomotaka Yamada, Takayuki Hosono, Taku Hirayama, Kazufumi Sato, Hiroshi Shimbori, Tomoyuki Ando
  • Publication number: 20060222866
    Abstract: A silsesquioxane resin, a positive resist composition, a resist laminate, and a method of forming a resist pattern that are capable of suppressing a degas phenomenon are provided, and a silicon-containing resist composition and a method of forming a resist pattern that are ideally suited to immersion lithography are also provided. The silsesquioxane resin includes structural units represented by the general shown below [wherein, R1 and R2 each represent, independently, a straight chain, branched, or cyclic saturated aliphatic hydrocarbon group; R3 represents an acid dissociable, dissolution inhibiting group containing a hydrocarbon group that includes an aliphatic monocyclic or polycyclic group; R4 represents a hydrogen atom, or a straight chain, branched, or cyclic alkyl group; X represents an alkyl group of 1 to 8 carbon atoms in which at least one hydrogen atom has been substituted with a fluorine atom; and m represents an integer from 1 to 3].
    Type: Application
    Filed: February 25, 2004
    Publication date: October 5, 2006
    Inventors: Tsuyoshi Nakamura, Koki Tamura, Tomotaka Yamada, Taku Hirayama, Daisuke Kawana, Takayuki Hosono
  • Publication number: 20050227170
    Abstract: A positive resist composition having excellent mask linearity is provided. This composition is a positive resist composition comprising a base resin component (A) and an acid generator component (B) generating an acid under exposure, wherein the base resin component (A) is a silicone resin and the acid generator component (B) contains an onium salt-based acid generator (B1) containing a perfluoroalkyl sulfonate ion having 3 or 4 carbon atoms as an anion.
    Type: Application
    Filed: March 28, 2005
    Publication date: October 13, 2005
    Inventors: Takayuki Hosono, Koki Tamura, Daisuke Kawana, Tomotaka Yamada
  • Publication number: 20050227171
    Abstract: A lift-off positive resist composition capable of forming a fine lift-off pattern is provided. This composition comprises a base resin component (A) and an acid generator component (B) generating an acid under exposure, wherein the base resin component (A) is a silicone resin.
    Type: Application
    Filed: March 28, 2005
    Publication date: October 13, 2005
    Inventors: Daisuke Kawana, Tomotaka Yamada, Hiroshi Shimbori, Koki Tamura, Tomoyuki Ando, Takayuki Hosono
  • Publication number: 20050221225
    Abstract: A positive resist composition capable of forming a resist pattern having excellent shape is provided. This composition is a positive resist composition including a base resin component (A) and an acid generator component (B) generating an acid under exposure, which are dissolved in an organic solvent, wherein the base resin component (A) is a silicone resin, and the organic solvent contains propylene glycol monomethyl ether (x1) and a solvent (S2) having a boiling point higher than that of the propylene glycol monomethyl ether.
    Type: Application
    Filed: March 28, 2005
    Publication date: October 6, 2005
    Inventors: Daisuke Kawana, Tomotaka Yamada, Takayuki Hosono, Koki Tamura