Patents by Inventor Isao Yoshida

Isao Yoshida 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: 20100133989
    Abstract: An extended area uniform light source providing uniform luminance is taught for displays and other applications where the light emission can be planar or have curvature. The uniform light source is achieved using a combination of a blue light-emitting electroluminescent layer and a highly stable inorganic photoluminescent colour conversion layer to tailor the colour spectrum of the emitted light. The invention thus encompasses the uniform light source, displays incorporating the uniform light sources as well of methods of making such light sources and displays.
    Type: Application
    Filed: December 1, 2008
    Publication date: June 3, 2010
    Applicants: IFIRE IP CORPORATION, SANYO ELECTRIC CO. LTD.
    Inventors: James Alexander Robert Stiles, Hiroki Hamada, Isao Yoshida
  • Publication number: 20100044793
    Abstract: In a high frequency amplifying MOSFET having a drain offset region, the size is reduced and the on-resistance is decreased by providing conductor plugs 13 (P1) for leading out electrodes on a source region 10, a drain region 9 and leach-through layers 3 (4), to which a first layer wirings 11a, 11d(M1) are connected and, further, backing second layer wirings 12a to 12d are connected on the conductor plugs 13 (P1) to the first layer wirings 11s, 11d (M1).
    Type: Application
    Filed: October 30, 2009
    Publication date: February 25, 2010
    Applicant: RENESAS TECHNOLOGY CORP.
    Inventors: Yutaka Hoshino, Shuji Ikeda, Isao Yoshida, Shiro Kamohara, Megumi Kawakami, Tomoyuki Miyake, Masatoshi Morikawa
  • Patent number: 7667050
    Abstract: The present invention provides a salt represented by the formula (I): wherein X represents a C3-C30 divalent group containing at least one divalent alicyclic hydrocarbon group, and at least one —CH2— in the C3-C30 divalent group may be substituted with —O— or —CO—, Y represents a C3-C30 cyclic hydrocarbon group which may be substituted with at least one group selected from a C1-C6 alkoxy group, a C1-C4 perfluoroalkyl group, a C1-C6 hydroxyalkyl group, a hydroxyl group and a cyano group, and at least one —CH2— in the C3-C30 cyclic hydrocarbon group may be substituted with —O— or —CO—, Q1 and Q2 each independently represent a fluorine atom or a C1-C6 perfluoroalkyl group, and A+ represents an organic counter ion.
    Type: Grant
    Filed: August 15, 2007
    Date of Patent: February 23, 2010
    Assignee: Sumitomo Chemical Company, Limited
    Inventors: Junji Shigematsu, Isao Yoshida, Yukako Harada, Masumi Suetsugu
  • Patent number: 7597969
    Abstract: A thin film phosphor for an electroluminescent device, the phosphor being selected from the group consisting of thioaluminates, thiogallates and thioindates having at least one cation selected from elements of Groups IIA and IIB of the Periodic Table of Elements. The phosphor being activated by a rare earth metal and containing oxygen as a partial substitute for a portion of the sulphur in the crystal lattice of the thiogallate, thioindate or thioaluminate. The phosphor is a single phase homogeneous compound and provides improved luminance stability. An electroluminescent device comprising the thin film phosphor is also described and methods of making the phosphor of the invention.
    Type: Grant
    Filed: May 11, 2006
    Date of Patent: October 6, 2009
    Assignee: Ifire IP Corporation
    Inventors: James Alexander Robert Stiles, John Wesley Moore, Vincent Joseph Alfred Pugliese, Hiroki Hamada, Isao Yoshida
  • Patent number: 7579132
    Abstract: The present invention provides a salt represented by the formula (I): wherein X represents an n-valent connecting group, Y1 and Y2 each independently represent a fluorine atom or a C1-C6 perfluoroalkyl group, n represents 2 or 3, and A+ represents an organic counter ion. The present invention further provides a chemically amplified resist composition comprising the salt represented by the above-mentioned formula (I).
    Type: Grant
    Filed: June 4, 2007
    Date of Patent: August 25, 2009
    Assignee: Sumitomo Chemical Company, Limited
    Inventors: Yukako Harada, Isao Yoshida, Satoshi Yamaguchi
  • Patent number: 7556908
    Abstract: The present invention provides a chemically amplified positive resist composition comprising (A) a resin which comprises (i) a structural unit of the formula (I) and (ii) at least one structural unit selected from the group consisting of structural units of the formulas (II), (O/II), (IV) and (V) and (B) an acid generator. The present invention further provides a novel monomers useful for the resist composition, and process for the monomers and the compositions.
    Type: Grant
    Filed: April 21, 2005
    Date of Patent: July 7, 2009
    Assignee: Sumitomo Chemical Company, Limited
    Inventors: Ichiki Takemoto, Isao Yoshida, Takayuki Miyagawa
  • Patent number: 7531686
    Abstract: The present invention provides a salt of the formula (I): wherein ring X represents polycyclic hydrocarbon group having tricycle or more and having 10 to 30 carbon atoms, and one or more hydrogen atom in the ring X is optionally substituted with alkyl group having 1 to 6 carbon atoms, alkoxy group having 1 to 6 carbon atoms, perfluoroalkyl group having 1 to 4 carbon atoms or cyano group; Q1 and Q2 each independently represent fluorine atom or perfluoroalkyl group having 1 to 6 carbon atoms; n shows an integer of 1 to 12; and A+ represents a cation selected from the group consist of a cation of the following formulae (IIa), (IIb) and (IIc): The present invention also provides a chemically amplified resist composition comprising the salt of the formula (I).
    Type: Grant
    Filed: October 26, 2006
    Date of Patent: May 12, 2009
    Assignee: Sumitomo Chemical Company, Limited
    Inventors: Yukako Harada, Isao Yoshida, Satoshi Yamaguchi
  • Patent number: 7527910
    Abstract: The present invention provides a salt of the formula (I): wherein X represents alkylene group or substituted alkylene group; Q1 and Q2 each independently represent fluorine atom or perfluoroalkyl group having 1 to 6 carbon atoms; A+ represents organic counter ion; and n shows 0 or 1. The present invention also provides a chemically amplified resist composition comprising the salt of the formula (I), and a resin which contains a structural unit having an acid-labile group and which itself is insoluble or poorly soluble in an alkali aqueous solution but becomes soluble in an alkali aqueous solution by the action of an acid.
    Type: Grant
    Filed: December 26, 2006
    Date of Patent: May 5, 2009
    Assignee: Sumitomo Chemical Company, Limited
    Inventors: Satoshi Yamaguchi, Isao Yoshida, Yukako Harada
  • Publication number: 20090004601
    Abstract: A chemically amplified positive resist composition comprising (A) a salt represented by the formula (I): A+?O3S—R??(I) wherein R represents a 9,10-anthraquinonyl group which may be substituted with at least one group selected from the group consisting of a C1-C4 alkyl group, a C1-C4 alkoxy group and a hydroxyl group, and the C1-C4 alkyl group and the C1-C4 alkoxy group may be substituted, and A+ represents an organic counter cation, and (B) a resin which contains a structural unit which has an acid-labile group and which itself is insoluble or poorly soluble in an aqueous alkali solution but becomes soluble in an aqueous alkali solution by the action of an acid.
    Type: Application
    Filed: June 24, 2008
    Publication date: January 1, 2009
    Applicant: SUMITOMO CHEMICAL COMPANY, LIMITED
    Inventors: Makoto Akita, Isao Yoshida, Yukako Harada
  • Publication number: 20090004600
    Abstract: A chemically amplified positive resist composition comprising (A) a resin which comprises (i) a polymerization unit represented by the formula (I): wherein R7 represents a hydrogen atom etc., R8 represents a C1-C4 alkyl group, p represents an integer of 1 to 3, and q represents an integer of 0 to 2, (ii) at least one polymerization unit selected from a group consisting of a polymerization unit represented by the formula (II): wherein R1 represents a hydrogen atom etc., R2 represents a C1-C8 alkyl group and ring X represents an alicyclic hydrocarbon group, and a polymerization unit represented by the formula (IV): wherein R3 represents a hydrogen atom etc., R4 and R5 independently represents a hydrogen atom etc., R10 represents a C1-C6 alkyl group etc., and (iii) a polymerization unit represented by the formula (III): wherein R3, R4 and R5 are the same as defined above, E represents a divalent hydrocarbon group, G represents a single bond etc., Z represents a carbonyl group etc.
    Type: Application
    Filed: June 20, 2008
    Publication date: January 1, 2009
    Applicant: SUMITOMO CHEMICAL COMPANY, LIMITED
    Inventors: Makoto Akita, Isao Yoshida, Kazuhiko Hashimoto
  • Publication number: 20080315762
    Abstract: A novel and improved composite thick film dielectric structure is provided to improve the operating stability of phosphors used in thick dielectric ac electroluminescent displays. The novel structure comprises one or more aluminum oxide layers disposed between the composite thick dielectric layer and the bottom of the phosphor layer of these displays.
    Type: Application
    Filed: April 25, 2008
    Publication date: December 25, 2008
    Applicants: IFIRE IP CORPORATION, SANYO ELECTRIC CO., LTD.
    Inventors: Hiroki Hamada, Isao Yoshida, Vincent Joseph Alfred Pugliese, Manuela Peter, James Alexander Robert Stiles
  • Patent number: 7439006
    Abstract: A salt represented by the formula (I): wherein X represents a C1-C12 divalent linear or branched chain hydrocarbon group, Y represents a C1-C30 hydrocarbon group which may be substituted with at least one substituent, and at least one —CH2— in the C1-C30 hydrocarbon group may be substituted with —O— or —CO—, Q1 and Q2 each independently represent a fluorine atom or a C1-C6 perfluoroalkyl group, and A+ represents an organic counter ion. The present invention further provides a chemically amplified resist composition comprising the salt represented by the above-mentioned formula (I).
    Type: Grant
    Filed: August 10, 2007
    Date of Patent: October 21, 2008
    Assignee: Sumitomo Chemical Company, Limited
    Inventors: Isao Yoshida, Yukako Harada, Takayuki Miyagawa
  • Publication number: 20080086014
    Abstract: The present invention provides a salt represented by the formula (I): wherein X represents a C3-C30 divalent group containing at least one divalent alicyclic hydrocarbon group, and at least one —CH2— in the C3-C30 divalent group may be substituted with —O— or —CO—, Y represents a C3-C30 cyclic hydrocarbon group which may be substituted with at least one group selected from a C1-C6 alkoxy group, a C1-C4 perfluoroalkyl group, a C1-C6 hydroxyalkyl group, a hydroxyl group and a cyano group, and at least one —CH2— in the C3-C30 cyclic hydrocarbon group may be substituted with —O— or —CO—, Q1 and Q2 each independently represent a fluorine atom or a C1-C6 perfluoroalkyl group, and A+ represents an organic counter ion.
    Type: Application
    Filed: August 15, 2007
    Publication date: April 10, 2008
    Applicant: SUMITOMO CHEMICAL COMPANY, LIMITED
    Inventors: Junji Shigematsu, Isao Yoshida, Yukako Harada, Masumi Suetsugu
  • Publication number: 20080081293
    Abstract: The present invention provides a salt represented by the formula (I): wherein P1, P2 and P3 each independently represent a C1-C30 alkyl group which may be substituted with at least one selected from a hydroxyl group, a C3-C12 cyclic hydrocarbon group and a C1-C12 alkoxy group, or a C3-C30 cyclic hydrocarbon group which may be substituted with at least one selected from a hydroxyl group and a C1-C12 alkoxy group, provided that all of P1, P2 and P3 are not simultaneously phenyl groups which may be substituted, Q1 and Q2 each independently represent a fluorine atom or a C1-C6 perfluoroalkyl group, and R represents a group represented by the formula: wherein A1 represents —OH or —Y1—OH, n represents an integer of 1 to 9, and Y1 represents a divalent C1-C6 saturated aliphatic hydrocarbon group; a group represented by the formula: wherein ring X1 represents a C3-C30 monocyclic or polycyclic hydrocarbon group in which one —CH2— group is substituted with —CO—, and at least one hydrogen atom in the mon
    Type: Application
    Filed: July 30, 2007
    Publication date: April 3, 2008
    Applicant: Sumitomo Chemical Company, Limited
    Inventors: Yukako Harada, Isao Yoshida, Yoshiyuki Takata
  • Publication number: 20080076063
    Abstract: A salt represented by the formula (I): wherein X represents a C1-C12 divalent linear or branched chain hydrocarbon group, Y represents a C1-C30 hydrocarbon group which may be substituted with at least one substituent, and at least one —CH2— in the C1-C30 hydrocarbon group may be substituted with —O— or —CO—, Q1 and Q2 each independently represent a fluorine atom or a C1-C6 perfluoroalkyl group, and A+ represents an organic counter ion. The present invention further provides a chemically amplified resist composition comprising the salt represented by the above-mentioned formula (I).
    Type: Application
    Filed: August 10, 2007
    Publication date: March 27, 2008
    Applicant: SUMITOMO CHEMICAL COMPANY, LIMITED
    Inventors: Isao Yoshida, Yukako Harada, Takayuki Miyagawa
  • Publication number: 20080044738
    Abstract: The present invention provides a salt represented by the formula (I): wherein X represents an n-valent connecting group, Y1 and Y2 each independently represent a fluorine atom or a C1-C6 perfluoroalkyl group, n represents 2 or 3, and A+ represents an organic counter ion. The present invention further provides a chemically amplified resist composition comprising the salt represented by the above-mentioned formula (I).
    Type: Application
    Filed: June 4, 2007
    Publication date: February 21, 2008
    Applicant: Sumitomo Chemical Company, Limited
    Inventors: Yukako Harada, Isao Yoshida, Satoshi Yamaguchi
  • Publication number: 20080004817
    Abstract: The surface length of a metal subject to be inspected is evaluated by detecting an eddy current without using a combination of a scale and visual or liquid penetrant inspection. An exciting coil and a detecting coil are scanned above the subject in a length direction. An eddy current detector measures an output voltage corresponding to scanning positions based on an output from the detecting coil. Based on an output voltage distribution curve indicating a distribution of output voltages corresponding to the scanning positions, position information is extracted corresponding to values which are within a differential voltage range and lower by 12 dB than a maximum value of the output voltages on the left and right sides of the distribution. A distance between the positions included in the extracted information is calculated to evaluate the length of a slit which is a defect present on the subject surface.
    Type: Application
    Filed: June 29, 2007
    Publication date: January 3, 2008
    Inventors: Akira NISHIMIZU, Yoshio Nonaka, Isao Yoshida, Motoyuki Nakamura, Akihiro Taki, Masahiro Koike
  • Patent number: 7301047
    Abstract: The present invention provides a salt of the formula (I): wherein ring X represents monocyclic or bicyclic hydrocarbon group having 3 to 30 carbon atoms, and one or more hydrogen atom in the ring X is optionally substituted with alkyl group having 1 to 6 carbon atoms, alkenyl group having 2 to 6 carbon atoms, alkoxy group having 2 to 6 carbon atoms or perfluoroalkyl group having 1 to 4 carbon atoms; Q1 and Q2 each independently represent fluorine atom or perfluoroalkyl group having 1 to 6 carbon atoms; A+ represents organic counter ion; and n shows an integer of 1 to 12. The present invention also provides a chemically amplified resist composition comprising the salt of the formula (I).
    Type: Grant
    Filed: October 26, 2006
    Date of Patent: November 27, 2007
    Assignee: Sumitomo Chemical Company, Limited
    Inventors: Isao Yoshida, Yukako Harada, Satoshi Yamaguchi
  • Patent number: 7262321
    Abstract: The present invention provides a salt of the formula (I): wherein X represents divalent or trivalent residue of acyclic hydrocarbon having 1 to 30 carbon atoms or divalent or trivalent residue of hydrocarbon having 3 to 30 carbon atoms which contains monocyclic or bicyclic ring, wherein —CH2— in the hydrocarbon may be substituted with —O— and one or more hydrogen atom in X is optionally substituted with alkoxy group having 1 to 6 carbon atoms, perfluoroalkyl group having 1 to 4 carbon atoms, hydroxyalkyl group having 1 to 6 carbon atoms, hydroxyl group or cyano group; Q1 and Q2 each independently represent fluorine atom or perfluoroalkyl group having 1 to 6 carbon atoms; A+ represents organic counter ion; Y represents hydroxyl group, cyano group or methoxy group; and n shows 1 or 2. The present invention also provides a chemically amplified resist composition comprising the salt of the formula (I).
    Type: Grant
    Filed: September 7, 2006
    Date of Patent: August 28, 2007
    Assignee: Sumitomo Chemical Company, Limited
    Inventors: Yukako Harada, Isao Yoshida, Yoshiyuki Takata
  • Publication number: 20070184382
    Abstract: The present invention provides a salt of the formula (I): wherein X represents alkylene group or substituted alkylene group; Q1 and Q2 each independently represent fluorine atom or perfluoroalkyl group having 1 to 6 carbon atoms; A+ represents organic counter ion; and n shows 0 or 1. The present invention also provides a chemically amplified resist composition comprising the salt of the formula (I), and a resin which contains a structural unit having an acid-labile group and which itself is insoluble or poorly soluble in an alkali aqueous solution but becomes soluble in an alkali aqueous solution by the action of an acid.
    Type: Application
    Filed: December 26, 2006
    Publication date: August 9, 2007
    Applicant: Sumitomo Chemical Company, Limited
    Inventors: Satoshi Yamaguchi, Isao Yoshida, Yukako Harada