Patents by Inventor Kenta Kawai

Kenta Kawai 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: 20240075387
    Abstract: Provided is a non-transitory computer-readable recording medium having stored therein a game control program controlling a video game in which characters battle against each other in a three-dimensional virtual space, and causing a computer to execute: determining whether a second character has received a predetermined attack from a first character when the first character is battling against the second character, who is an enemy of the first character; and controlling the second character to perform a predetermined move such as a knockback in a direction toward a troop to which the second character belongs, in a case where the second character has received the predetermined attack.
    Type: Application
    Filed: June 29, 2023
    Publication date: March 7, 2024
    Inventors: Yuishin TAKAFUJI, Yusuke NORITA, Kenta SHIRAISHI, Masanori KAWAI
  • Publication number: 20240021814
    Abstract: A method of manufacturing a positive electrode material for a lithium ion secondary battery includes: firing a mixture containing a lithium compound, a nickel-containing complex compound, and a molybdenum compound, to obtain first particles containing a lithium transition metal complex oxide having a composition in which a ratio of a number of moles of nickel to a total number of moles of metals other than lithium is greater than 0.6 and less than 1; and bringing the first particles into contact with a liquid medium in such that a solid content concentration of the first particles is in a range of 20 mass % to 80 mass % to remove a part of molybdenum element contained in the first particles to obtain second particles.
    Type: Application
    Filed: July 3, 2023
    Publication date: January 18, 2024
    Applicant: NICHIA CORPORATION
    Inventors: Hayato ISHIBASHI, Kenichi KOBAYASHI, Kento ISAI, Kenta KAWAI, Koichi SUMIWAKA
  • Publication number: 20220259066
    Abstract: Provided is a positive electrode for an all-solid-state lithium ion secondary battery which can reduce the internal resistance of the all-solid-state lithium ion secondary battery. The positive electrode includes an active material layer containing a positive electrode active material and a solid electrolyte material. The positive electrode active material contains secondary particles comprising an aggregate of a plurality of primary particles containing a lithium transition metal composite oxide. A smoothness of the secondary particles is more than 0.73, and a degree of circularity of the secondary particles is more than 0.83.
    Type: Application
    Filed: July 30, 2020
    Publication date: August 18, 2022
    Applicant: NICHIA CORPORATION
    Inventors: Yoshiteru MIYAMOTO, Taiga SHIRAISHI, Kenta KAWAI, Yasuhiro YOSHIDA, Masahiro MURAYAMA
  • Publication number: 20220255064
    Abstract: The positive electrode active material includes secondary particles formed by aggregation of a plurality of primary particles that contain a lithium transition metal composite oxide having a layered structure and containing lithium and nickel. The secondary particles have a smoothness greater than 0.73, and a circularity greater than 0.83. The secondary particles contain cobalt and have a first region at a depth of 150 nm from a surface of the respective secondary particle and a second region at a depth of 10 nm or less from the surface of the respective secondary particle, and a ratio of a number of moles of cobalt to a total number of moles of metal elements other than lithium in the second region is larger than a ratio of a number of moles of cobalt to a total number of moles of metal elements other than lithium in the first region.
    Type: Application
    Filed: January 31, 2022
    Publication date: August 11, 2022
    Applicant: NICHIA CORPORATION
    Inventors: Kenta KAWAI, Yoshiteru MIYAMOTO, Taiga SHIRAISHI, Yasuhiro YOSHIDA, Masahiro MURAYAMA, Tomoya MATSUI
  • Patent number: 10490810
    Abstract: The present invention provides a positive electrode active material for non-aqueous electrolyte secondary battery comprising: core particles comprising a lithium transition metal composite oxide represented by the general formula: LiaNi1?x?yCoxM1yM2zO2 wherein 1.00?a?1.50, 0.00?x?0.50, 0.00?y?0.50, 0.00?z?0.02, 0.00?x+y?0.70, M1 is at least one element selected from the group consisting of Mn and Al, M2 is at least one element selected from the group consisting of Zr, Ta, Nb and Mo, and a surface layer located on a surface of the core particles, the surface layer comprising lithium, boron, tungsten and oxygen.
    Type: Grant
    Filed: September 11, 2017
    Date of Patent: November 26, 2019
    Assignee: NICHIA CORPORATION
    Inventor: Kenta Kawai
  • Patent number: 10454097
    Abstract: A positive electrode composition for nonaqueous electrolyte secondary battery comprises a lithium transition metal complex oxide represented by a general formula LiaNi1-x-yCoxM1yWzM2wO2, where 1.0?a?1.5, 0?x?0.5, 0?y?0.5, 0.002?z?0.03, 0?w?0.02, 0?x+y?0.7, M1 represents at least one selected from the group consisting of Mn and Al, and M2 represents at least one selected from the group consisting of Zr, Ti, Mg, Ta, Nb and Mo; and a boron compound comprising at least boron element and oxygen element.
    Type: Grant
    Filed: July 19, 2017
    Date of Patent: October 22, 2019
    Assignee: NICHIA CORPORATION
    Inventors: Kousuke Shimokita, Kenta Kawai, Kiyofumi Inouchi
  • Publication number: 20170373309
    Abstract: The present invention provides a positive electrode active material for non-aqueous electrolyte secondary battery comprising: core particles comprising a lithium transition metal composite oxide represented by the general formula: LiaNi1-x+yCoxM1yM2zO2 wherein 1.00?a?1.50, 0.00?x?0.50, 0.00?y?0.50, 0.00?z?0.02, 0.00?x+y?0.70, M1 is at least one element selected from the group consisting of Mn and Al, M2 is at least one element selected from the group consisting of Zr, Ta, Nb and Mo, and a surface layer located on a surface of the core particles, and the surface layer comprising boron, tungsten and oxygen; wherein the surface layer is obtained by heat-treating the core particles; a raw material compound (1) that is at least one compound selected from the group consisting of boron oxide, an oxo acid of boron, and a salt of an oxo acid of boron; and tungsten oxide (VI).
    Type: Application
    Filed: September 11, 2017
    Publication date: December 28, 2017
    Applicant: NICHIA CORPORATION
    Inventor: Kenta KAWAI
  • Publication number: 20170317339
    Abstract: A positive electrode composition for nonaqueous electrolyte secondary battery comprises a lithium transition metal complex oxide represented by a general formula LiaNi1-x-yCoxM1yWzM2wO2, where 1.0?a?1.5, 0?x?0.5, 0?y?0.5, 0.002?z?0.03, 0?w?0.02, 0?x+y?0.7, M1 represents at least one selected from the group consisting of Mn and Al, and M2 represents at least one selected from the group consisting of Zr, Ti, Mg, Ta, Nb and Mo; and a boron compound comprising at least boron element and oxygen element.
    Type: Application
    Filed: July 19, 2017
    Publication date: November 2, 2017
    Applicant: NICHIA CORPORATION
    Inventors: Kousuke SHIMOKITA, Kenta KAWAI, Kiyofumi INOUCHI
  • Patent number: 9793540
    Abstract: The present invention provides a positive electrode active material for non-aqueous electrolyte secondary battery comprising: core particles comprising a lithium transition metal composite oxide represented by the general formula: LiaNi1-x-yCoxM1yM2zO2 ?wherein 1.00?a?1.50, 0.00?x?0.50, 0.00?y?0.50, 0.00?z?0.02, 0.00?x+y?0.70, M1 is at least one element selected from the group consisting of Mn and Al, M2 is at least one element selected from the group consisting of Zr, Ta, Nb and Mo, and a surface layer located on a surface of the core particles, and the surface layer comprising boron, tungsten and oxygen; wherein the surface layer is obtained by heat-treating the core particles; a raw material compound (1) that is at least one compound selected from the group consisting of boron oxide, an oxo acid of boron, and a salt of an oxo acid of boron; and tungsten oxide (VI).
    Type: Grant
    Filed: December 12, 2014
    Date of Patent: October 17, 2017
    Assignee: NICHIA CORPORATION
    Inventor: Kenta Kawai
  • Patent number: 9742002
    Abstract: A positive electrode composition for nonaqueous electrolyte secondary battery comprises a lithium transition metal complex oxide represented by a general formula LiaNi1?x?yCoxM1yWzM2wO2, where 1.0?a?1.5, 0?x?0.5, 0?y?0.5, 0.002?z?0.03, 0?w?0.02, 0?x+y?0.7, M1 represents at least one selected from the group consisting of Mn and Al, and M2 represents at least one selected from the group consisting of Zr, Ti, Mg, Ta, Nb and Mo; and a boron compound comprising at least boron element and oxygen element.
    Type: Grant
    Filed: April 16, 2013
    Date of Patent: August 22, 2017
    Assignee: NICHIA CORPORATION
    Inventors: Kousuke Shimokita, Kenta Kawai, Kiyofumi Inouchi
  • Patent number: 9716272
    Abstract: A positive electrode composition comprises a positive electrode active material composed of a lithium transition metal complex oxide represented by the general formula Li1+xNiyCozM1-y-z-wLwO2 (wherein 0?x?0.50, 0.30?y?1.0, 0<z?0.5, 0?w?0.1, 0.30<y+z+w?1, M represents at least one kind selected from Mn and Al, and L represents at least one kind of an element selected from the group consisting of Zr, Ti, Mg and W), and additive particles composed of acidic oxide particles.
    Type: Grant
    Filed: June 20, 2011
    Date of Patent: July 25, 2017
    Assignee: NICHIA CORPORATION
    Inventors: Kenta Kawai, Kengo Ooishi, Hisato Sadamasu, Chika Kinouchi, Yasuhiro Yoshida
  • Publication number: 20150171424
    Abstract: The present invention provides a positive electrode active material for non-aqueous electrolyte secondary battery comprising: core particles comprising a lithium transition metal composite oxide represented by the general formula: LiaNi1-x-yCoxM1yM2zO2 wherein 1.00?a?1.50, 0.00?x?0.50, 0.00?y?0.50, 0.00?z?0.02, 0.00?x+y?0.70, M1 is at least one element selected from the group consisting of Mn and Al, M2 is at least one element selected from the group consisting of Zr, Ta, Nb and Mo, and a surface layer located on a surface of the core particles, and the surface layer comprising boron, tungsten and oxygen; wherein the surface layer is obtained by heat-treating the core particles; a raw material compound (1) that is at least one compound selected from the group consisting of boron oxide, an oxo acid of boron, and a salt of an oxo acid of boron; and tungsten oxide (VI).
    Type: Application
    Filed: December 12, 2014
    Publication date: June 18, 2015
    Inventor: Kenta KAWAI
  • Publication number: 20140066471
    Abstract: Disclosed is an external preparation composition having good transdermal absorbability. An external preparation composition having excellent transdermal absorbability can be produced by dissolving a medicinal substance or a salt thereof in a fatty acid-based ionic liquid to form a composite ionic composition of the medicinal substance. The external preparation composition can be used as a liquid preparation, an ointment, a cream, a plaster or the like, and enables to provide a preparation having excellent transdermal absorbability.
    Type: Application
    Filed: November 6, 2013
    Publication date: March 6, 2014
    Applicant: MEDRX CO., LTD.
    Inventors: Toshikazu YAMAGUCHI, Kenta KAWAI, Katsuhiro YAMANAKA, Noboru TATSUMI
  • Patent number: 8623387
    Abstract: Disclosed is an external preparation composition having good transdermal absorbability. An external preparation composition having excellent transdermal absorbability can be produced by dissolving a medicinal substance or a salt thereof in a fatty acid-based ionic liquid to form a composite ionic composition of the medicinal substance. The external preparation composition can be used as a liquid preparation, an ointment, a cream, a plaster or the like, and enables to provide a preparation having excellent transdermal absorbability.
    Type: Grant
    Filed: November 20, 2008
    Date of Patent: January 7, 2014
    Assignee: Medrx Co., Ltd.
    Inventors: Toshikazu Yamaguchi, Kenta Kawai, Katsuhiro Yamanaka, Noboru Tatsumi
  • Publication number: 20130277604
    Abstract: A positive electrode composition for nonaqueous electrolyte secondary battery comprises a lithium transition metal complex oxide represented by a general formula LiaNi1-x-yCoxM1yWzM2wO2, where 1.0?a?1.5, 0?x?0.5, 0?y?0.5, 0.002?z?0.03, 0?w?0.02, 0?x+y?0.7, M1 represents at least one selected from the group consisting of Mn and Al, and M2 represents at least one selected from the group consisting of Zr, Ti, Mg, Ta, Nb and Mo; and a boron compound comprising at least boron element and oxygen element.
    Type: Application
    Filed: April 16, 2013
    Publication date: October 24, 2013
    Inventors: Kousuke SHIMOKITA, Kenta KAWAI
  • Publication number: 20120276446
    Abstract: A positive electrode active material for non-aqueous electrolyte secondary battery, comprising particles of a lithium transition metal complex oxide represented by the general formula: LiaNi1?x?y?zCoxMnyM?zM?wO2 wherein 1.00?a?1.25, 0?x?0.5, 0?y?0.5, 0.002?z?0.01, 0?w?0.05, M? is at least one kind of an element selected from W, Mo, Nb and Ta, and M? is at least one kind of an element selected from Zr, Al, Mg, Ti, B and V.
    Type: Application
    Filed: April 26, 2012
    Publication date: November 1, 2012
    Inventor: Kenta KAWAI
  • Publication number: 20110315918
    Abstract: A positive electrode composition that has improved output power characteristics and low costs, and is also easily handled upon production of a positive electrode, and exhibits an improved yield is provided. A positive electrode composition comprising a positive electrode active material composed of a lithium transition metal complex oxide represented by the general formula Li1+xNiyCozM1?y?z?wLwO2 (wherein 0?x?0.50, 0.30?y?1.0, 0<z?0.5, 0?w?0.1, 0.30<y+z+w?1, M represents at least one kind selected from Mn and Al, and L represents at least one kind of an element selected from the group consisting of Zr, Ti, Mg and W), and additive particles composed of acidic oxide particles is used for positive electrode.
    Type: Application
    Filed: June 20, 2011
    Publication date: December 29, 2011
    Inventors: Kenta KAWAI, Kengo OOISHI, Hisato SADAMASU, Chika KINOUCHI, Yasuhiro YOSHIDA
  • Publication number: 20100256174
    Abstract: Disclosed is an external preparation composition having good transdermal absorbability. An external preparation composition having excellent transdermal absorbability can be produced by dissolving a medicinal substance or a salt thereof in a fatty acid-based ionic liquid to form a composite ionic composition of the medicinal substance. The external preparation composition can be used as a liquid preparation, an ointment, a cream, a plaster or the like, and enables to provide a preparation having excellent transdermal absorbability.
    Type: Application
    Filed: November 20, 2008
    Publication date: October 7, 2010
    Inventors: Toshikazu Yamaguchi, Kenta Kawai, Katsuhiro Yamanaka, Noboru Tatsumi