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: 20110197679
    Abstract: In an ultrasonic inspection method or ultrasonic inspection system in which an ultrasonic wave is propagated to an test object via a medium such as a liquid or a gas, an incident position of the ultrasonic wave is accurately and reliably identified. In an ultrasonic inspection method based on an immersion technique, an optical irradiator is mounted on an ultrasonic wave transmitting/receiving unit, an optical marker is irradiated from the optical irradiator to the test object, and an irradiated position of the optical marker is imaged using imaging equipment in order to perform inspection.
    Type: Application
    Filed: February 16, 2011
    Publication date: August 18, 2011
    Applicant: HITACHI-GE NUCLEAR ENERGY, LTD.
    Inventors: Naoyuki KONO, Isao YOSHIDA, Masahiro KOIKE, Yoshio NONAKA, Hiroyuki NAKANO, Kenichi OTANI, Chihiro MATSUOKA, Masafumi IMAI
  • Publication number: 20110201823
    Abstract: A salt represented by the formula (I0): wherein Q1 and Q2 each independently represent a fluorine atom or a C1-C6 perfluoroalkyl group, L1 represents a divalent C1-C17 hydrocarbon group in which one or more —CH2— can be replaced by —O— or —CO—, m represents 1 or 2, and Zm+ represents m-valent organic or inorganic cation.
    Type: Application
    Filed: February 11, 2011
    Publication date: August 18, 2011
    Applicant: SUMITOMO CHEMICAL COMPANY, LIMITED
    Inventors: Isao YOSHIDA, Koji ICHIKAWA
  • Patent number: 7989088
    Abstract: A novel sub-structure of a thick film dielectric electroluminescent display and a thick film dielectric electroluminescent display incorporating the same is provided. The sub-structure comprises a barrier layer between a substrate and a thick film dielectric layer. The barrier layer is chemically inert with respect to the substrate and the thick film dielectric layer and the barrier layer inhibits diffusion of at least one chemical species therethrough. This sub-structure results in a higher capacitance for the thick dielectric layer, which provides higher display luminance and a reduced tendency for dielectric breakdown of the thick dielectric layer. The barrier layer permits for lower cost substrates, such as glass, to be used.
    Type: Grant
    Filed: December 15, 2003
    Date of Patent: August 2, 2011
    Assignees: iFire IP Corporation, Sanyo Electric Co., Ltd.
    Inventors: Hiroki Hamada, Isao Yoshida, Daniel J. Seale, Hui Zhang, Yang Maizhi, Ye Yufeng, Li Wu, M. Smy William
  • Patent number: 7982263
    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: Grant
    Filed: October 30, 2009
    Date of Patent: July 19, 2011
    Assignee: Renesas Electronics Corporation
    Inventors: Yutaka Hoshino, Shuji Ikeda, Isao Yoshida, Shiro Kamohara, Megumi Kawakami, Tomoyuki Miyake, Masatoshi Morikawa
  • Publication number: 20110165519
    Abstract: The present invention provides a resin which generates an acid by irradiation and is a salt of an organic cation and an anionic polymer wherein the anionic polymer has no carbon-carbon unsaturated bond. The present invention further provides a chemically amplified resist composition comprising the same.
    Type: Application
    Filed: March 18, 2011
    Publication date: July 7, 2011
    Inventors: Nobuo ANDO, Ichiki TAKEMOTO, Isao YOSHIDA, Yukako HARADA
  • Publication number: 20110148404
    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: February 16, 2011
    Publication date: June 23, 2011
    Inventors: Akira NISHIMIZU, Yoshio Nonaka, Isao Yoshida, Motoyuki Nakamura, Akihiro Taki, Masahiro Koike
  • Publication number: 20110117493
    Abstract: A salt represented by the formula (X): wherein Q1 and Q2 each independently represent a fluorine atom or a C1-C6 perfluoroalkyl group, L1 represents a C1-C17 divalent saturated hydrocarbon group in which one or more —CH2— can be replaced by —O— or —CO—, ring W1 represents a C4-C36 lactone ring, R3 is a C1-C6 alkyl group etc., t represents an integer of 0 to 2, Z+ represents an organic counter ion, and W10 represents a group represented by the formula (X-1): wherein L2 represents a single bond etc., ring W2 represents a C3-C36 saturated hydrocarbon ring in which one —CH2— is replaced by —CO— and in which one or more —CH2— can be replaced by —O— or —CO—, R1 represents a C1-C12 hydrocarbon group, R2 is a C1-C6 alkyl group etc.
    Type: Application
    Filed: November 15, 2010
    Publication date: May 19, 2011
    Applicant: SUMITOMO CHEMICAL COMPANY, LIMITED
    Inventors: Koji ICHIKAWA, Masako SUGIHARA, Isao YOSHIDA
  • Patent number: 7932334
    Abstract: The present invention provides a resin which generates an acid by irradiation and is a salt of an organic cation and an anionic polymer wherein the anionic polymer has no carbon-carbon unsaturated bond. The present invention further provides a chemically amplified resist composition comprising the same.
    Type: Grant
    Filed: December 21, 2006
    Date of Patent: April 26, 2011
    Assignee: Sumitomo Chemical Company, Limited
    Inventors: Nobuo Ando, Ichiki Takemoto, Isao Yoshida, Yukako Harada
  • Publication number: 20110076617
    Abstract: The present invention provides a photoresist composition comprising a resin having an acid-labile group and being insoluble or poorly soluble in an aqueous alkali solution but becoming soluble in an aqueous alkali solution by the action of an acid, an acid generator and a compound represented by the formula (I): wherein Z1 represents a C7-C20 alkylene group, a C3-C20 divalent saturated cyclic group or a divalent group formed by combining at least one C1-C6 alkylene group with at least one C3-C20 divalent saturated cyclic group.
    Type: Application
    Filed: September 22, 2010
    Publication date: March 31, 2011
    Applicant: SUMITOMO CHEMICAL COMPANY, LIMITED
    Inventors: Satoshi Yamaguchi, Soon Shin Kim, Isao Yoshida, Koji Ichikawa
  • Patent number: 7915803
    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: Grant
    Filed: April 25, 2008
    Date of Patent: March 29, 2011
    Assignees: iFire IP Corporation, Sanyo Electric Co., Ltd.
    Inventors: Hiroki Hamada, Isao Yoshida, Vincent Joseph Alfred Pugliese, Manuela Peter, James Alexander Robert Stiles
  • Patent number: 7915819
    Abstract: A novel laminate is provided to improve the operating stability of thioaluminate based phosphors used in ac thick film dielectric electroluminescent displays. The novel structure comprises a rare earth activated alkaline earth thioaluminate phosphor thin film layer and a magnesium oxide or magnesium oxide containing layer provided directly adjacent and in contact with the bottom of the phosphor thin film layer. The invention is particularly applicable to phosphors used in electroluminescent displays that employ thick dielectric layers subject to high processing temperatures to form and activate the phosphor films.
    Type: Grant
    Filed: April 13, 2006
    Date of Patent: March 29, 2011
    Assignees: iFire IP Corporation, Sanyo Electric Co., Ltd.
    Inventors: Isao Yoshida, Hiroki Hamada, Joe Acchione, Yongbao Xin, San Yu
  • Patent number: 7911206
    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: Grant
    Filed: June 29, 2007
    Date of Patent: March 22, 2011
    Assignee: Hitachi, Ltd.
    Inventors: Akira Nishimizu, Yoshio Nonaka, Isao Yoshida, Motoyuki Nakamura, Akihiro Taki, Masahiro Koike
  • Patent number: 7893293
    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: Grant
    Filed: June 20, 2008
    Date of Patent: February 22, 2011
    Assignee: Sumitomo Chemical Company, Limited
    Inventors: Makoto Akita, Isao Yoshida, Kazuhiko Hashimoto
  • Publication number: 20110020749
    Abstract: The object of the present invention is to provide a chemically amplified resist composition excellent in a resolution and a mask error enhancement factor. By employing the salt represented by the formulae (A1) as an acid generator of a resist composition, the above mentioned object is achieved. wherein Z+ represents an organic cation, Q1 and Q2 each independently represent a fluorine atom or a perfluoroalkyl group, Ra2 represents a divalent alicyclic hydrocarbon group pr the like, Ra2 represents an elimination group represented by the formulae (II-1) or (II-2). In the formulae (II-1) or (II-2), Ra3 and Ra4 each independently represent a hydrogen atom or an aliphatic hydrocarbon group, Ra5 represents an aliphatic hydrocarbon group, Ra6 represents a divalent aliphatic hydrocarbon group, and Ra7 represents an aliphatic hydrocarbon group.
    Type: Application
    Filed: July 27, 2010
    Publication date: January 27, 2011
    Applicant: SUMITOMO CHEMICAL COMPANY, LIMITED
    Inventors: Koji Ichikawa, Isao Yoshida, Satoshi Yamaguchi
  • Patent number: 7862980
    Abstract: The present invention provides a salt represented by the formula (I): wherein P1, P2, P3, Q1, Q2 and R are defined in the specification and the present invention further provides a chemically amplified resist composition comprising the salt represented by the above-mentioned formula (I).
    Type: Grant
    Filed: July 30, 2007
    Date of Patent: January 4, 2011
    Assignee: Sumitomo Chemical Company, Limited
    Inventors: Yukako Harada, Isao Yoshida, Yoshiyuki Takata
  • Publication number: 20100304293
    Abstract: A salt represented by the formula (a): wherein Q1 and Q2 each independently represent a fluorine atom etc., X1 represents a single bond etc., X2 represents a single bond etc., Y1 represents a C3-C6 alicyclic hydrocarbon group etc., with the proviso that —X2—Y1 group has one or more fluorine atoms, and Z+ represents an organic counter cation, and a photoresist composition comprising the salt represented by the formula (a) and a resin comprising a structural unit having an acid-labile group and being insoluble or poorly soluble in an aqueous alkali solution but becoming soluble in an aqueous alkali solution by the action of an acid.
    Type: Application
    Filed: May 25, 2010
    Publication date: December 2, 2010
    Applicant: SUMITOMO CHEMICAL COMPANY, LIMITED
    Inventors: Koji ICHIKAWA, Isao Yoshida
  • Patent number: 7812522
    Abstract: A novel laminate is provided to improve the operating stability of thioaluminate based phosphors used in ac thick film dielectric electroluminescent displays. The novel structure comprises a rare earth activated alkaline earth thioaluminate phosphor thin film layer and an aluminum oxide or aluminum oxynitride layer provided directly adjacent and in contact with the bottom of the phosphor thin film layer. The invention is particularly applicable to phosphors used in electroluminescent displays that employ thick dielectric layers subject to high processing temperatures to form and activate the phosphor films.
    Type: Grant
    Filed: July 19, 2005
    Date of Patent: October 12, 2010
    Assignee: iFire IP Corporation
    Inventors: Yongbao Xin, Isao Yoshida, Joe Acchione, Hiroki Hamada
  • Publication number: 20100233628
    Abstract: A compound represented by the formula (I): wherein R1 represents a hydrogen atom etc., R2 and R3 each independently represent a hydrogen atom etc., R4 represents a C1-C8 divalent hydrocarbon group, R5 represents a single bond etc., and R6 represents an unsubstituted or substituted C6-C20 aromatic hydrocarbon group, a polymer comprising a structural unit derived from the compound represented by the formula (I) and a chemically amplified positive resist composition comprising the polymer, at least one acid generator and at least one solvent.
    Type: Application
    Filed: March 8, 2010
    Publication date: September 16, 2010
    Applicant: SUMITOMO CHEMICAL COMPANY, LIMITED
    Inventors: Makoto AKITA, Isao Yoshida, Kazuhiko Hashimoto
  • Patent number: 7786322
    Abstract: The present invention provides a salt of the formula (I): wherein ring X represents monocyclic or polycyclic hydrocarbon group having 3 to 30 carbon atoms, and one or more hydrogen atom in the monocyclic or polycyclic hydrocarbon group is optionally substituted with alkyl group having 1 to 10 carbon atom, alkoxy group having 1 to 10 carbon atom, perfluoroalkyl group having 1 to 4 carbon atoms, hydroxyalkyl group having 1 to 10 carbon atoms or cyano group; Q1 and Q2 each independently represent fluorine atom or perfluoroalkyl group having 1 to 6 carbon atoms; and A+ represents organic counter ion. The present invention also provides a chemically amplified resist composition comprising the salt of the formula (I).
    Type: Grant
    Filed: November 17, 2006
    Date of Patent: August 31, 2010
    Assignee: Sumitomo Chemical Company, Limited
    Inventors: Satoshi Yamaguchi, Yukako Harada, Isao Yoshida
  • Patent number: 7759045
    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: Grant
    Filed: June 24, 2008
    Date of Patent: July 20, 2010
    Assignee: Sumitomo Chemical Company, Limited
    Inventors: Makoto Akita, Isao Yoshida, Yukako Harada