Patents by Inventor Yuki Usui

Yuki Usui 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: 20140045119
    Abstract: A material forms a pattern by applying a photosensitive composition to a base material and drying to form a photosensitive coating and performing exposure and development, and a method for forming the pattern. A photosensitive composition includes water-soluble organic particles, and a solvent, wherein the solvent is a poor solvent for the water-soluble organic particles. Preferably, the water-soluble organic particles of the photosensitive composition includes a polymer which contains a unit structure (A) for forming organic particles, a unit structure (B) for forming interparticle crosslinkage, and a unit structure (C) for imparting dispersibility, and the photosensitive composition further includes a photoacid generator.
    Type: Application
    Filed: April 11, 2012
    Publication date: February 13, 2014
    Applicant: NISSAN CHEMICAL INDUSTRIES, LTD.
    Inventors: Takahiro Kishioka, Makiko Umezaki, Shigeo Kimura, Hirokazu Nishimaki, Tomoya Ohashi, Yuki Usui
  • Publication number: 20130216956
    Abstract: There is provided a composition for forming a monolayer or a multilayer on the substrate. A composition for forming a monolayer or a multilayer containing a silane compound of Formula (1A) or Formula (1B): [where R1s are independently a methyl group or an ethyl group; Xs are independently a C1-10 linking group; and Zs are independently a C1-10 alkyl group or a phenyl group optionally having a substituent, where X optionally contains at least one oxygen atom or sulfur atom in the main chain thereof, and when Z is an alkyl group, at least one hydrogen atom of the alkyl group is optionally substituted with a fluorine atom] and an organic solvent.
    Type: Application
    Filed: October 7, 2011
    Publication date: August 22, 2013
    Applicant: NISSAN CHEMICAL INDUSTRIES, LTD.
    Inventors: Takahiro Kishioka, Daisuke Sakuma, Shigeo Kimura, Hirokazu Nishimaki, Tomoya Ohashi, Yuki Usui
  • Publication number: 20120288795
    Abstract: A composition for forming a photosensitive resist underlayer film and a method for forming a resist pattern. The composition for forming a photosensitive resist underlayer film includes a polymer having a structural unit of Formula (1), a compound having at least two vinyl ether groups, a photo-acid generator; and a solvent: where R1 is a hydrogen atom or a methyl group, R2 is a C1-4 alkyl group, and i is an integer of 0 to 4.
    Type: Application
    Filed: November 16, 2010
    Publication date: November 15, 2012
    Applicant: NISSAN CHEMICAL INDUSTRIES, LTD.
    Inventors: Makiko Umezaki, Takahiro Kishioka, Yusuke Horiguchi, Hirokazu Nishimaki, Tomoya Ohashi, Yuki Usui
  • Publication number: 20110311915
    Abstract: A resist underlayer film forming composition used in a lithography process includes: a polymer (A) containing a unit structure having a hydroxy group, a unit structure having a carboxy group, or combination thereof; a crosslinkable compound (B) having at least two vinyl ether groups; a photoacid generator (C); a C4-20 fluoroalkylcarboxylic acid or a salt of the fluoroalkylcarboxylic acid (D); and a solvent (E).
    Type: Application
    Filed: June 17, 2010
    Publication date: December 22, 2011
    Applicant: NISSAN CHEMICAL INDUSTRIES, LTD.
    Inventors: Shigeo Kimura, Hirokazu Nishimaki, Tomoya Ohashi, Yuki Usui, Takahiro Kishioka