Patents by Inventor Toshitsugu Sueki

Toshitsugu Sueki 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: 10657917
    Abstract: A shift register is implemented that can increase the reliability of long-term operation regarding the driving of gate bus lines over a conventional configuration. The shift register is allowed to operate by clock signals of eight or more phases with an on-duty of less than ½. A stabilization node control portion brings a stabilization node (NB) to an on level for a period less than 50 percent of a normal operation period, based on two or more clock signals among the clock signals of eight or more phases, the stabilization node (NB) being connected to a gate terminal of a thin film transistor that contributes to the drawing of a potential of an output control node (NA) to a VSS potential.
    Type: Grant
    Filed: October 12, 2016
    Date of Patent: May 19, 2020
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Toshitsugu Sueki, Yasuaki Iwase, Takuya Watanabe
  • Patent number: 10276119
    Abstract: An output control node stabilization portion includes a thin film transistor having a gate terminal to which is provided a fourth clock that changes to an on level at timing at which a scanning signal outputted from a previous stage is to change from an off level to an on level, a drain terminal connected to an output control node, and a source terminal to which the scanning signal outputted from the previous stage is provided; and a thin film transistor having a gate terminal to which is provided a third clock that changes to an on level at timing at which a scanning signal outputted from a subsequent stage is to change from an off level to an on level, a drain terminal connected to the output control node, and a source terminal to which the scanning signal outputted from the subsequent stage is provided.
    Type: Grant
    Filed: June 26, 2015
    Date of Patent: April 30, 2019
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Toshitsugu Sueki, Yasuaki Iwase, Takuya Watanabe, Akira Tagawa, Kengo Hara
  • Publication number: 20180308444
    Abstract: A shift register is implemented that can increase the reliability of long-term operation regarding the driving of gate bus lines over a conventional configuration. The shift register is allowed to operate by clock signals of eight or more phases with an on-duty of less than ½. A stabilization node control portion brings a stabilization node (NB) to an on level for a period less than 50 percent of a normal operation period, based on two or more clock signals among the clock signals of eight or more phases, the stabilization node (NB) being connected to a gate terminal of a thin film transistor that contributes to the drawing of a potential of an output control node (NA) to a VSS potential.
    Type: Application
    Filed: October 12, 2016
    Publication date: October 25, 2018
    Inventors: TOSHITSUGU SUEKI, YASUAKI IWASE, TAKUYA WATANABE
  • Publication number: 20170140729
    Abstract: An output control node stabilization portion includes a thin film transistor having a gate terminal to which is provided a fourth clock that changes to an on level at timing at which a scanning signal outputted from a previous stage is to change from an off level to an on level, a drain terminal connected to an output control node, and a source terminal to which the scanning signal outputted from the previous stage is provided; and a thin film transistor having a gate terminal to which is provided a third clock that changes to an on level at timing at which a scanning signal outputted from a subsequent stage is to change from an off level to an on level, a drain terminal connected to the output control node, and a source terminal to which the scanning signal outputted from the subsequent stage is provided.
    Type: Application
    Filed: June 26, 2015
    Publication date: May 18, 2017
    Applicant: Sharp Kabushiki Kaisha
    Inventors: Toshitsugu SUEKI, Yasuaki IWASE, Takuya WATANABE, Akira TAGAWA, Kengo HARA
  • Patent number: 9419280
    Abstract: A cathode active material of the present invention is a cathode active material having a composition represented by General Formula (1) below, LiFe1?xMxP1?ySiyO4??(1), where: an average valence of Fe is +2 or more; M is an element having a valence of +2 or more and is at least one type of element selected from the group consisting of Zr, Sn, Y, and Al; the valence of M is different from the average valence of Fe; 0<x?0.5; and y=x×({valence of M}?2)+(1?x)×({average valence of Fe}?2). This provides a cathode active material that not only excels in terms of safety and cost but also can provide a long-life battery.
    Type: Grant
    Filed: December 18, 2014
    Date of Patent: August 16, 2016
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Koji Ohira, Motoaki Nishijima, Toshitsugu Sueki, Shogo Esaki, Isao Tanaka, Yukinori Koyama, Katsuhisa Tanaka, Koji Fujita, Shunsuke Murai
  • Patent number: 9373844
    Abstract: A positive electrode active substance including a lithium-containing metal oxide represented by the following general formula (1): LiFe1-xMxP1-ySiyO4??(1) wherein M represents an element selected from Sn, Zr, Y, and Al; 0<x<1; and 0<y<1, wherein the lithium-containing metal oxide has a lattice constant and a half value width of a diffraction peak of a (011) plane.
    Type: Grant
    Filed: November 14, 2013
    Date of Patent: June 21, 2016
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Koji Ohira, Motoaki Nishijima, Toshitsugu Sueki, Shougo Esaki, Isao Tanaka, Yukinori Koyama, Katsuhisa Tanaka, Koji Fujita, Shunsuke Murai
  • Patent number: 9350022
    Abstract: A cathode active material of the present invention is a cathode active material having a composition represented by General Formula (1) below, LiFe1-xMxP1-ySiyO4??(1), where: an average valence of Fe is +2 or more; M is an element having a valence of +2 or more and is at least one type of element selected from the group consisting of Zr, Sn, Y, and Al; the valence of M is different from the average valence of Fe; 0<x?0.5; and y=x×({valence of M}?2)+(1?x)×({average valence of Fe}?2). This provides a cathode active material that not only excels in terms of safety and cost but also can provide a long-life battery.
    Type: Grant
    Filed: December 18, 2014
    Date of Patent: May 24, 2016
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Koji Ohira, Motoaki Nishijima, Toshitsugu Sueki, Shogo Esaki, Isao Tanaka, Yukinori Koyama, Katsuhisa Tanaka, Koji Fujita, Shunsuke Murai
  • Patent number: 9337489
    Abstract: A cathode active material of the present invention is a cathode active material having a composition represented by General Formula (1) below, LiFe1?xMxP1?ySiyO4??(1), where: an average valence of Fe is +2 or more; M is an element having a valence of +2 or more and is at least one type of element selected from the group consisting of Zr, Sn, Y, and Al; the valence of M is different from the average valence of Fe; 0<x?0.5; and y=x×({valence of M}?2)+(1?x)×({average valence of Fe}?2). This provides a cathode active material that not only excels in terms of safety and cost but also can provide a long-life battery.
    Type: Grant
    Filed: February 23, 2015
    Date of Patent: May 10, 2016
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Koji Ohira, Motoaki Nishijima, Toshitsugu Sueki, Shogo Esaki, Isao Tanaka, Yukinori Koyama, Katsuhisa Tanaka, Koji Fujita, Shunsuke Murai
  • Patent number: 9293234
    Abstract: Provided is a positive electrode active material giving nonaqueous-electrolyte secondary batteries superior in cycle characteristics. The positive electrode active material according to the present invention includes a lithium-containing composite metal oxide having the composition represented by the following General Formula (1): LizFe1-xMxP1-ySiyO4??(1) (wherein M is at least one metal element selected from Zr, Sn, Y, and Al, 0.05<x<1, and 0.05<y<1), characterized in that: the positive electrode active material is in the single crystalline phase of the lithium-containing composite oxide represented by General Formula (1) when 1>z>0.9 to 0.75 or 0.25 to 0.1>z>0; the positive electrode active material has two crystalline phases of the lithium-containing composite oxides represented by the following General Formulae (2) and (3) when 0.9 to 0.75>z>0.25 to 0.1: LiaFe1-xMxP1-ySiyO4??(2) (wherein 0.75 to 0.9?a?1.00, 0.05<x<1, and 0.
    Type: Grant
    Filed: June 16, 2011
    Date of Patent: March 22, 2016
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Motoaki Nishijima, Koji Ohira, Toshitsugu Sueki, Shougo Esaki, Isao Tanaka, Yukinori Koyama, Katsuhisa Tanaka, Koji Fujita, Shunsuke Murai
  • Patent number: 9090470
    Abstract: A method of producing a positive electrode active substance comprising steps of: dissolving a lithium source, an M source, a phosphorus source and an X source in amounts needed to form a lithium-containing composite oxide having an olivine structure and represented by the following general formula (1): LixMyP1?zXzO4??(1) wherein, in the formula, M is at least one kind of element selected from the group of Fe, Ni, Mn, Zr, Sn, Ti, Nb, V, Al and Y; X is at least one kind selected from the group of Si and Al; 0<x?2; 0.8?y?1.2; and 0?z?1, in a solvent being capable to dissolve these sources, thereby forming a solution; gelating the obtained solution by adding a cyclic ether compound and sintering the resulting gel to obtain the positive electrode active substance made of the lithium-containing composite oxide having an olivine structure that is covered with carbon deriving from the cyclic ether compound.
    Type: Grant
    Filed: March 9, 2012
    Date of Patent: July 28, 2015
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Toshitsugu Sueki, Motoaki Nishijima
  • Publication number: 20150171429
    Abstract: A cathode active material of the present invention is a cathode active material having a composition represented by General Formula (1) below, LiFe1-xMxP1-ySiyO4 ??(1), where: an average valence of Fe is +2 or more; M is an element having a valence of +2 or more and is at least one type of element selected from the group consisting of Zr, Sn, Y, and Al; the valence of M is different from the average valence of Fe; 0<x?0.5; and y=x×({valence of M}?2)+(1?x)×({average valence of Fe}?2). This provides a cathode active material that not only excels in terms of safety and cost but also can provide a long-life battery.
    Type: Application
    Filed: February 23, 2015
    Publication date: June 18, 2015
    Inventors: Koji OHIRA, Motoaki NISHIJIMA, Toshitsugu SUEKI, Shogo ESAKI, Isao TANAKA, Yukinori KOYAMA, Katsuhisa TANAKA, Koji FUJITA, Shunsuke MURAI
  • Publication number: 20150162611
    Abstract: An object is to provide a cathode active material for a non-aqueous electrolyte secondary battery exhibiting a capacity even at a high rate. The object is achieved by providing a cathode active material for a non-aqueous electrolyte secondary battery including phosphate containing lithium and manganese, in which a manganese site is substituted with at least one element selected from Zr, Sn, Y, and Al, and a phosphorous site is substituted with at least one element selected from Si and Al, and a metal oxide.
    Type: Application
    Filed: July 31, 2013
    Publication date: June 11, 2015
    Inventors: Yuichi Kamimura, Motoaki Nishijima, Tomohisa Yoshie, Koji Ohira, Toshitsugu Sueki
  • Patent number: 9017876
    Abstract: A method of producing a positive electrode active material, comprising the steps of: preparing a solution by dissolving, in a solvent, respective predetermined amounts of a lithium source, a M source, a phosphorus source and a X source necessary for forming a positive electrode active material represented by the following general formula (1) having an olivine structure; gelating the obtained solution by addition of a cyclic ether; and calcinating the generated gel to obtain a carbon-coated lithium-containing composite oxide, wherein the positive electrode active material is represented by the general formula (1): LixMyP1-zXzO4??(1) wherein M is at least one element selected from the group consisting of Fe, Ni, Mn, Zr, Sn, Al and Y, X is at least one selected from the group consisting of Si and Al, and 0<x?2, 0.8?y?1.2, 0?z?1.
    Type: Grant
    Filed: October 18, 2011
    Date of Patent: April 28, 2015
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Toshitsugu Sueki, Motoaki Nishijima, Koji Ohira, Shogo Esaki, Isao Tanaka, Yukinori Koyama, Katsuhisa Tanaka, Koji Fujita, Shunsuke Murai
  • Publication number: 20150104710
    Abstract: A cathode active material of the present invention is a cathode active material having a composition represented by General Formula (1) below, LiFe1?xMxP1-ySiyO4??(1), where: an average valence of Fe is +2 or more; M is an element having a valence of +2 or more and is at least one type of element selected from the group consisting of Zr, Sn, Y, and Al; the valence of M is different from the average valence of Fe; 0<x?0.5; and y=x×({valence of M}?2)+(1?x)×({average valence of Fe}?2). This provides a cathode active material that not only excels in terms of safety and cost but also can provide a long-life battery.
    Type: Application
    Filed: December 18, 2014
    Publication date: April 16, 2015
    Inventors: Koji OHIRA, Motoaki NISHIJIMA, Toshitsugu SUEKI, Shogo ESAKI, Isao TANAKA, Yukinori KOYAMA, Katsuhisa TANAKA, Koji FUJITA, Shunsuke MURAI
  • Publication number: 20150104709
    Abstract: A cathode active material of the present invention is a cathode active material having a composition represented by General Formula (1) below, LiFe1-xMxP1-ySiyO4??(1), where: an average valence of Fe is +2 or more; M is an element having a valence of +2 or more and is at least one type of element selected from the group consisting of Zr, Sn, Y, and Al; the valence of M is different from the average valence of Fe; 0<x?0.5; and y=x×({valence of M}?2)+(1?x)×({average valence of Fe}?2). This provides a cathode active material that not only excels in terms of safety and cost but also can provide a long-life battery.
    Type: Application
    Filed: December 18, 2014
    Publication date: April 16, 2015
    Inventors: Koji OHIRA, Motoaki NISHIJIMA, Toshitsugu SUEKI, Shogo ESAKI, Isao TANAKA, Yukinori KOYAMA, Katsuhisa TANAKA, Koji FUJITA, Shunsuke MURAI
  • Patent number: 8999576
    Abstract: A cathode active material of the present invention is a cathode active material having a composition represented by General Formula (1) below, LiFe1-xMxP1-ySiyO4??(1), where: an average valence of Fe is +2 or more; M is an element having a valence of +2 or more and is at least one type of element selected from the group consisting of Zr, Sn, Y, and Al; the valence of M is different from the average valence of Fe; 0<x?0.5; and y=x×({valence of M}?2)+(1?x)×({average valence of Fe}?2). This provides a cathode active material that not only excels in terms of safety and cost but also can provide a long-life battery.
    Type: Grant
    Filed: May 20, 2010
    Date of Patent: April 7, 2015
    Assignee: Sharp Kabushiki kaisha
    Inventors: Koji Ohira, Motoaki Nishijima, Toshitsugu Sueki, Shogo Esaki, Isao Tanaka, Yukinori Koyama, Katsuhisa Tanaka, Koji Fujita, Shunsuke Murai
  • Patent number: 8968936
    Abstract: The present invention provides a method for producing a lithium-containing composite oxide represented by general formula (1) below, the method at least including a step of preparing a solution by dissolving a lithium source, an element M source, a phosphorus source, and an element X source that serve as source materials in a solvent, the phosphorus source being added after at least the element M source is dissolved; a step of gelating the resulting solution; and a step of calcining the resulting gel: LixMyP1-zXzO4??(1) (where M represents at least one element selected from the group consisting of Fe, Ni, Mn, Zr, Sn, Al, and Y; X represents at least one element selected from the group consisting of Si and Al; and 0<x?2, 0.8?y?1.2, 0?z?1). According to the present invention, a positive electrode active material for lithium secondary batteries that offers high safety and high cost efficiency and are capable of extending battery life can be provided.
    Type: Grant
    Filed: June 1, 2011
    Date of Patent: March 3, 2015
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Motoaki Nishijima, Koji Ohira, Toshitsugu Sueki, Shougo Esaki, Isao Tanaka, Yukinori Koyama, Katsuhisa Tanaka, Koji Fujita, Shunsuke Murai
  • Publication number: 20140178765
    Abstract: A positive electrode active substance including a lithium-containing metal oxide represented by the following general formula (1): LiFe1-xMxP1-ySiyO4??(1) wherein M represents an element selected from Sn, Zr, Y, and Al; 0<x<1; and 0<y<1, wherein the lithium-containing metal oxide has a lattice constant and a half value width of a diffraction peak of a (011) plane.
    Type: Application
    Filed: November 14, 2013
    Publication date: June 26, 2014
    Applicant: Sharp Kabushiki Kaisha
    Inventors: KOJI OHIRA, Motoaki Nishijima, Toshitsugu Sueki, Shougo Esaki, Isao Tanaka, Yukinori Koyama, Katsuhisa Tanaka, Koji Fujita, Shunsuke Murai
  • Patent number: 8609280
    Abstract: A positive electrode active substance comprising a lithium-containing metal oxide represented by the following general formula (1): LiFe1-xMxP1-ySiyO4??(1) wherein M represents an element selected from group III to group XIV; 0<x<1; and 0<y<1, having a volume of a unit lattice of 291.4 to 300.0 ?3 or 285.0 to 291.0 ?3, and having a half value width of a diffraction peak of a (011) surface of 0.30° or more.
    Type: Grant
    Filed: July 1, 2011
    Date of Patent: December 17, 2013
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Koji Ohira, Motoaki Nishijima, Toshitsugu Sueki, Shougo Esaki, Isao Tanaka, Yukinori Koyama, Katsuhisa Tanaka, Koji Fujita, Shunsuke Murai
  • Publication number: 20130115514
    Abstract: Provided is a positive electrode active material giving nonaqueous-electrolyte secondary batteries superior in cycle characteristics. The positive electrode active material according to the present invention includes a lithium-containing composite metal oxide having the composition represented by the following General Formula (1): LizFe1-xMxP1-ySiyO4 ??(1) (wherein M is at least one metal element selected from Zr, Sn, Y, and Al, 0.05<x<1, and 0.05<y<1), characterized in that: the positive electrode active material is in the single crystalline phase of the lithium-containing composite oxide represented by General Formula (1) when 1>z>0.9 to 0.75 or 0.25 to 0.1>z>0; the positive electrode active material has two crystalline phases of the lithium-containing composite oxides represented by the following General Formulae (2) and (3) when 0.9 to 0.75>z>0.25 to 0.1: LiaFe1-xMxP1-ySiyO4 ??(2) (wherein 0.75 to 0.9?a?1.00, 0.05<x<1, and 0.
    Type: Application
    Filed: June 16, 2011
    Publication date: May 9, 2013
    Applicant: SHARP KABUSHIKI KAISHA
    Inventors: Motoaki Nishijima, Koji Ohira, Toshitsugu Sueki, Shougo Esaki, Isao Tanaka, Yukinori Koyama, Katsuhisa Tanaka, Koji Fujita, Shunsuke Murai