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).

  • Patent number: 7235967
    Abstract: An eddy current testing probe has a flexible substrate adapted to face to a surface of a test article, a plurality of coils which are fixed to the flexible substrate and energized one of which is capable of being changed sequentially, a pressing member for pressing the substrate toward the test article, an elastic member arranged between the substrate and the pressing member, and a movement limiting member for limiting a movement of the pressing member toward the test article.
    Type: Grant
    Filed: January 6, 2006
    Date of Patent: June 26, 2007
    Assignee: Hitachi, Ltd.
    Inventors: Akira Nishimizu, Tetsuya Matsui, Masahiro Koike, Yoshio Nonaka, Isao Yoshida
  • Publication number: 20070122750
    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: Application
    Filed: November 17, 2006
    Publication date: May 31, 2007
    Applicant: Sumitomo Chemical Company, Limited
    Inventors: Satoshi Yamaguchi, Yukako Harada, Isao Yoshida
  • Publication number: 20070114606
    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: January 4, 2007
    Publication date: May 24, 2007
    Inventors: Yutaka Hoshino, Shuji Ikeda, Isao Yoshida, Shiro Kamohara, Megumi Kawakami, Tomoyuki Miyake, Masatoshi Morikawa
  • Patent number: 7220532
    Abstract: The present invention provides a chemical amplification type positive resist composition comprising a nitrogen containing compound of the formula (VIa) or (VIb); 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; and an acid generator of the formula (I)
    Type: Grant
    Filed: September 9, 2003
    Date of Patent: May 22, 2007
    Assignee: Sumitomo Chemical Company, Limited
    Inventors: Yoshiyuki Takata, Isao Yoshida, Hirotoshi Nakanishi
  • Publication number: 20070100096
    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 Q2each 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: Application
    Filed: September 7, 2006
    Publication date: May 3, 2007
    Inventors: Yukako Harada, Isao Yoshida, Yoshiyuki Takata
  • Publication number: 20070100158
    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: Application
    Filed: October 26, 2006
    Publication date: May 3, 2007
    Applicant: Sumitomo Chemical Company, Limited
    Inventors: Yukako Harada, Isao Yoshida, Satoshi Yamaguchi
  • Publication number: 20070100159
    Abstract: The present invention provides a salt of the formula (I): wherein mng 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 catbon atoms, alkenyl group having 2 to 6 carbon atoms, alkoxy group having 2 to 6 carbon atoms or perfuoroal group having 1 to 4 carbon atoms; Q1 and Q2 each independently represent luorine atom or pefluoroalkyl 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: Application
    Filed: October 26, 2006
    Publication date: May 3, 2007
    Applicant: Sumitomo Chemical Company, Limited
    Inventors: Isao Yoshida, Yukako Harada, Satoshi Yamaguchi
  • Patent number: 7176523
    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: August 19, 2004
    Date of Patent: February 13, 2007
    Assignee: Renesas Technology Corp.
    Inventors: Yutaka Hoshino, Shuji Ikeda, Isao Yoshida, Shiro Kamohara, Megumi Kawakami, Tomoyuki Miyake, Masatoshi Morikawa
  • Patent number: 7175963
    Abstract: A resin which comprises (1) at least one structural unit selected from the group consisting of a structural unit derived from 3-hydroxy-1-adamantyl (meth)acrylate, a structural unit derived from 3,5-dihydroxy-1-adamantyl (meth)acrylate, a structural unit derived from (meth)acryloyloxy-?-butyrolactone having a lactone ring optionally substituted by alkyl, a structural unit of the formula (Ia) and a structural unit of the formula and (2) a structural unit of the formula (II) 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; and also provides a chemical amplification type positive resist composition comprising a resin defined above and an acid generator.
    Type: Grant
    Filed: September 30, 2004
    Date of Patent: February 13, 2007
    Assignee: Sumitomo Chemical Company, Limited
    Inventors: Yusuke Fuji, Yoshiyuki Takata, Isao Yoshida
  • Publication number: 20070027336
    Abstract: The present invention provides a salt of the formula (L) A salt of the formula (L): wherein Q represents —CO— group or —C(OH)— group; ring X represents monocyclic or polycyclic hydrocarbon group having 3 to 30 carbon atoms in which a hydrogen atom is substituted with a hydroxyl group at Q position when Q is —C(OH)— group or in which two hydrogen atoms are substituted with ?O group at Q position when Q is —CO— group, and at least one hydrogen atom in the monocylic or polycyclic hydrocarbon group may optionally be substituted with alkyl group having 1 to 6 carbon atom, alkoxy group having 1 to 6 carbon atom, perfluoroalkyl group having 1 to 4 carbon atoms, hydroxyalkyl group having 1 to 6 carbon atoms, hydroxyl group or cyano group; R10 and R20 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 (L).
    Type: Application
    Filed: March 28, 2006
    Publication date: February 1, 2007
    Applicant: Sumitomo Chemical Company, Limited
    Inventors: Isao Yoshida, Yukako Harada, Satoshi Yamaguchi, Nobuo Ando
  • Publication number: 20060267484
    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: Application
    Filed: May 11, 2006
    Publication date: November 30, 2006
    Inventors: James Stiles, John Moore, Vincent Pugliese, Hiroki Hamada, Isao Yoshida
  • Publication number: 20060250082
    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: Application
    Filed: April 13, 2006
    Publication date: November 9, 2006
    Inventors: Isao Yoshida, Hiroki Hamada, Joe Acchione, Yongbao Xin, San Yu
  • Patent number: 7112373
    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: April 17, 2003
    Date of Patent: September 26, 2006
    Assignees: Sanyo Electric Co., Ltd., iFire Technology Inc.
    Inventors: James Alexander Robert Stiles, John Wesley Moore, Vincent Joseph Alfred Pugliese, Hiroki Hamada, Isao Yoshida
  • Publication number: 20060170420
    Abstract: An eddy current testing probe has a flexible substrate adapted to face to a surface of a test article, a plurality of coils which are fixed to the flexible substrate and energized one of which is capable of being changed sequentially, a pressing member for pressing the substrate toward the test article, an elastic member arranged between the substrate and the pressing member, and a movement limiting member for limiting a movement of the pressing member toward the test article.
    Type: Application
    Filed: January 6, 2006
    Publication date: August 3, 2006
    Inventors: Akira Nishimizu, Tetsuya Matsui, Masahiro Koike, Yoshio Nonaka, Isao Yoshida
  • Patent number: 7045412
    Abstract: In a semiconductor multi-layer structure in which a first SiGe layer having a first conductivity-type and high impurity concentration, a second SiGe layer having the first conductivity-type and a low impurity concentration and a Si layer having a low impurity concentration are formed one on another in this order on a Si substrate of the first conductivity-type, a channel is formed in a part of the Si layer and a source electrode passes through the second SiGe layer of low impurity concentration to electrically contact the first SiGe layer of high impurity concentration or the substrate.
    Type: Grant
    Filed: July 26, 2004
    Date of Patent: May 16, 2006
    Assignee: Renesas Technology Corp.
    Inventors: Nobuyuki Sugii, Masatoshi Morikawa, Isao Yoshida, Katsuyoshi Washio
  • Patent number: 7001706
    Abstract: A sulfonate of the formula (I): wherein Q1, Q2, Q3, Q4 and Q5 each independently represents a certain substituent, and A+ represents a counter ion, with the proviso that at least one of Q1, Q2, Q3, Q4 and Q5 is a group of the formula (II) wherein R1 and R2 each independently an alkyl having 1 to 12 carbon atoms or the like; and a chemical amplification type positive resist composition comprising the sulfate 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: July 16, 2004
    Date of Patent: February 21, 2006
    Assignee: Sumitomo Chemical Company, Limited
    Inventors: Satoshi Yamaguchi, Makoto Akita, Isao Yoshida
  • Publication number: 20060017381
    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: Application
    Filed: July 19, 2005
    Publication date: January 26, 2006
    Inventors: Yongbao Xin, Isao Yoshida, Joe Acchione, Hiroki Hamada
  • Publication number: 20050266351
    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), (III), (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: Application
    Filed: April 21, 2005
    Publication date: December 1, 2005
    Inventors: Ichiki Takemoto, Isao Yoshida, Takayuki Miyagawa
  • Publication number: 20050173738
    Abstract: Provided is a technology capable of reducing the on-resistance of a power MISFET while suppressing the generation of defects in a strained silicon layer. A strained silicon layer is formed only over an underlying strained silicon layer in the drain region by epitaxial growth. Large portions of a lightly-doped n type impurity diffusion region, offset region and heavily-doped n type impurity diffusion region are formed in these strained silicon layers, having a higher electron mobility than a conventional silicon layer.
    Type: Application
    Filed: February 4, 2005
    Publication date: August 11, 2005
    Inventors: Masao Kondo, Yutaka Hoshino, Kazuhiro Ohnishi, Isao Yoshida, Masatoshi Morikawa
  • Publication number: 20050100819
    Abstract: A resin which comprises (1) at least one structural unit selected from the group consisting of a structural unit derived from 3-hydroxy-1-adamantyl(meth)acrylate, a structural unit derived from 3,5-dihydroxy-1-adamantyl(meth)acrylate, a structural unit derived from (meth)acryloyloxy-?-butyrolactone having a lactone ring optionally substituted by alkyl, a structural unit of the formula (Ia) and a structural unit of the formula (Ib) and (2) a structural unit of the formula (II) 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; and also provides a chemical amplification type positive resist composition comprising a resin defined above and an acid generator.
    Type: Application
    Filed: September 30, 2004
    Publication date: May 12, 2005
    Applicant: Sumitomo Chemical Company, Limited
    Inventors: Yusuke Fuji, Yoshiyuki Takata, Isao Yoshida