Patents by Inventor Shinichiro TABATA

Shinichiro TABATA 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: 20210023535
    Abstract: A porous carbon material composite formed of a porous carbon material and a functional material and equipped with high functionality. The porous carbon material composite is formed of (A) a porous carbon material obtainable from a plant-derived material having a silicon (Si) content of 5 wt % or higher as a raw material; and (B) a functional material adhered on the porous carbon material, and has a specific surface area of 10 m2/g or greater as determined by the nitrogen BET method and a pore volume of 0.1 cm3/g or greater as determined by the BJH method and MP method.
    Type: Application
    Filed: October 8, 2020
    Publication date: January 28, 2021
    Applicant: Sony Corporation
    Inventors: Hironori Iida, Seiichiro Tabata, Shinichiro Yamada, Tsutomu Noguchi, Shun Yamanoi
  • Patent number: 10822680
    Abstract: A steel sheet for heat treatment having a chemical composition including, by mass %: C: 0.05 to 0.50%; Si: 0.50 to 5.0%; Mn; 1.5 to 4.0%; P: 0.05% or less; S: 0.05% or less; N: 0.01% or less; Ti: 0.01 to 0.10%; B: 0.0005 to 0.010%; Cr: 0 to 1.0%; Ni: 0 to 2.0%; Cu: 0 to 1.0%; Mo: 0 to 1.0%; V: 0 to 1.0%; Ca: 0 to 0.01%; Al: 0 to 1.0%; Nb: 0 to 1.0%; REM: 0 to 0.1%; and the balance: Fe and impurities, wherein a maximum height roughness Rz on a surface of the steel sheet is 3.0 to 10.0 ?m, and a number density of carbide being present in the steel sheet and having circle-equivalent diameters of 0.1 ?m or larger is 8.0×103/mm2 or lower.
    Type: Grant
    Filed: April 7, 2016
    Date of Patent: November 3, 2020
    Assignee: NIPPON STEEL CORPORATION
    Inventors: Yoshihiro Suwa, Shinichiro Tabata, Masafumi Azuma, Kazuo Hikida
  • Publication number: 20200317537
    Abstract: A porous carbon material having a value of a specific surface area by a nitrogen BET method of 1×102 m2/g or more, a volume of fine pores by a BJH method of 0.3 cm3/g or more, and a particle size of 75 ?m or more, alternatively, a porous carbon material having a value of a specific surface area by a nitrogen BET method of 1×102 m2/g or more, a total of volumes of fine pores having a diameter of from 1×10?9 m to 5×10?7 m, obtained by a non-localized density functional theory method, of 1.0 cm3/g or more, and a particle size of 75 ?m or more.
    Type: Application
    Filed: June 24, 2020
    Publication date: October 8, 2020
    Inventors: Shun YAMANOI, Hironori IIDA, Machiko MINATOYA, Seiichiro TABATA, Shinichiro YAMADA
  • Publication number: 20200313187
    Abstract: A carbon-polymer complex is provided and includes a porous carbon material and a binder, wherein the porous carbon material includes a material obtained from carbonization of a raw material including rice husk, the raw material having a silicon content of at least 5 wt %, the raw material is heat treated before carbonization, and the raw material is treated by an alkali treatment after carbonization to reduce the silicon content, the porous carbon material having a specific surface area of at least 10 m2/g as measured by the nitrogen BET method, a pore volume of at least 0.1 cm3/g as measured by the BJH method and MP method, and an R value of 1.5 or greater, wherein the porous carbon material includes mesopores having pore sizes from 2 nm to 50 nm and obtained from the alkali treatment of the raw material after carbonization, the porous carbon material further includes macropores and micropores.
    Type: Application
    Filed: June 12, 2020
    Publication date: October 1, 2020
    Inventors: Seiichiro TABATA, Shinichiro YAMADA, Masayoshi KANNO, Tsutomu NOGUCHI, Takeshi HORIE
  • Publication number: 20200303738
    Abstract: A porous carbon material comprising a material obtained from carbonization of a raw material including one or both of seaweed stem and straw, the raw material having a silicon content of at least 5 wt %, the raw material is heat treated before carbonization, and the raw material is treated by an alkali treatment after carbonization to reduce the silicon content, the porous carbon material having a value of specific surface area of at least 10 m2/g as measured by the nitrogen BET method, a pore volume of at least 0.1 cm3/g as measured by the BJH method and MP method, and an R value of 1.5 or greater, wherein the porous carbon material includes mesopores having pore sizes from 2 nm to 50 nm and obtained from the alkali treatment of the raw material after carbonization, the porous carbon material further includes macropores and micropores.
    Type: Application
    Filed: June 5, 2020
    Publication date: September 24, 2020
    Inventors: Seiichiro TABATA, Shinichiro YAMADA, Masayoshi KANNO, Tsutomu NOGUCHI, Takeshi HORIE
  • Patent number: 10756346
    Abstract: A porous carbon material is provided. The porous carbon material having a value of specific surface area of at least 10 m2/g as measured by a nitrogen BET method, a pore volume of at least 0.1 cm3/g as measured by a BJH method and a MP method, and a R value of 1.5 or greater, wherein the R value is expressed as R=B/A, wherein A is an intensity at an intersection between a baseline of a diffraction peak of a (002) plane as obtained based on powdery X-ray diffractometry of the porous carbon material and a perpendicular line downwardly drawn from the diffraction peak of the (002) plane, and wherein B is an intensity of the diffraction peak of the (002) plane.
    Type: Grant
    Filed: January 27, 2017
    Date of Patent: August 25, 2020
    Assignee: Sony Corporation
    Inventors: Seiichiro Tabata, Shinichiro Yamada, Masayoshi Kanno, Tsutomu Noguchi, Takeshi Horie
  • Publication number: 20200229441
    Abstract: Disclosed herein is a fungicide, including: a porous carbon material; and a silver member adhered to the porous carbon material, wherein a value of a specific surface area based on a nitrogen BET, namely Brunauer, Emmett, and Teller method is equal to or larger than 10 m2/g, and a volume of a fine pore based on a BJH, namely Barrett, Joyner, and Halenda method and an MP, namely Micro Pore method is equal to or larger than 0.1 cm3/g.
    Type: Application
    Filed: March 19, 2020
    Publication date: July 23, 2020
    Inventors: HIRONORI IIDA, SHUN YAMANOI, MACHIKO MINATOYA, SEIICHIRO TABATA, SHINICHIRO YAMADA
  • Patent number: 10718033
    Abstract: A heat-treated steel material is provided having strength of 2.000 GPa or more. The heat-treated steel material includes a chemical composition represented by, in mass %: C: 0.05% to 0.30%; Si: 0.50% to 5.00%; Mn: 2.0% to 10.0%; Cr: 0.01% to 1.00%; Ti: 0.010% to 0.100%; B: 0.0020% to 0.0100%; P: 0.050% or less; S: 0.0500% or less; N: 0.0100% or less; Ni: 0% to 2.0%; each of Cu, Mo, and V: 0% to 1.0%; each of Al and Nb: 0% to 1.00%; and the balance: Fe and impurities. “4612×[C]+51×[Si]+102×[Mn]+605>2000” is satisfied. The heat-treated steel material includes a microstructure in which 90 volume % or more is formed of martensite, and a dislocation density in the martensite is equal to or more than 1.2×1016 m?2.
    Type: Grant
    Filed: May 26, 2015
    Date of Patent: July 21, 2020
    Assignee: NIPPON STEEL CORPORATION
    Inventors: Shinichiro Tabata, Kazuo Hikida, Nobusato Kojima
  • Patent number: 10714750
    Abstract: By a process for producing a porous carbon material from a plant-derived material as a raw material, said process including carbonizing the plant-derived material at 800° C. to 1,400° C. and then applying a treatment with an acid or alkali, a porous carbon material having a value of specific surface area of at least 10 m2/g as measured by the nitrogen BET method, a silicon content of at most 1 wt % and a pore volume of at least 0.1 cm3/g is obtainable from a plant-derived material, which has a silicon content of at least 10 wt %, as a raw material. Also provided is a process for producing a porous carbon material equipped with excellent functionality so that the porous carbon material can be used, for example, as an anode material for batteries, an adsorbent, masks, adsorbing sheets, or carriers.
    Type: Grant
    Filed: April 4, 2008
    Date of Patent: July 14, 2020
    Assignee: Sony Corporation
    Inventors: Seiichiro Tabata, Shinichiro Yamada, Masayoshi Kanno, Tsutomu Noguchi, Takeshi Horie
  • Patent number: 10662494
    Abstract: A heat-treated steel material is provided having strength of 1.800 GPa or more. The heat-treated steel material includes a chemical composition represented by, in mass %: C: 0.05% to 0.30%; Mn: 2.0% to 10.0%; Cr: 0.01% to 1.00%; Ti: 0.010% to 0.100%; B: 0.0010% to 0.0100%; Si: 0.08% or less; P: 0.050% or less; S: 0.0500% or less; N: 0.0100% or less; Ni: 0% to 2.0%; each of Cu, Mo, and V: 0% to 1.0%; each of Al and Nb: 0% to 1.00%; and the balance: Fe and impurities. “4612×[C]+102×[Mn]+605?1800” is satisfied where [C] denotes a C content and [Mn] denotes a Mn content. The heat-treated steel material includes a microstructure in which 90 volume % or more is formed of martensite, and a dislocation density in the martensite is equal to or more than 9.0×1015 m?2.
    Type: Grant
    Filed: May 26, 2015
    Date of Patent: May 26, 2020
    Assignee: NIPPON STEEL CORPORATION
    Inventors: Shinichiro Tabata, Kazuo Hikida, Nobusato Kojima
  • Patent number: 10563281
    Abstract: A heat-treated steel sheet member having a composition including, by mass %: C: 0.05 to 0.50%; Si: 0.50 to 5.0%; Mn: 1.5 to 4.0%; P: 0.05% or less; S: 0.05% or less; N: 0.01% or less; Ti: 0.01 to 0.10%; B: 0.0005 to 0.010%; Cr: 0 to 1.0%; Ni: 0 to 2.0%; Cu; 0 to 1.0%; Mo: 0 to 1.0%; V: 0 to 1.0%; Ca: 0 to 0.01%; Al: 0 to 1.0%; Nb: 0 to 1.0%; REM: 0 to 0.1%; and the balance: Fe and impurities. The steel sheet member has a microstructure comprising mainly martensite and retained austenite of which a volume ratio is 0.2 to 1.0%, a number density of retained carbide in the steel sheet member having circle-equivalent diameters of 0.1 mm or larger is 4.0×103/mm2 or lower, a tensile strength is 1.4 GPa or higher, and a yield ratio is 0.65 or higher.
    Type: Grant
    Filed: April 7, 2016
    Date of Patent: February 18, 2020
    Assignee: NIPPON STEEL CORPORATION
    Inventors: Yoshihiro Suwa, Shinichiro Tabata, Masafumi Azuma, Kazuo Hikida
  • Publication number: 20190366686
    Abstract: The present invention provides an alloyed Al plated steel sheet for hot stamping, which is a steel sheet having, on the surface, an Al—Fe alloyed layer that includes an A phase (Fe—Al-based alloy phase including 45% to 85% of Fe and 4% to 13% of Si) and has a thickness of 15 ?m or more, in which a proportion of a length occupied by the A phase in an uppermost surface of a cross section perpendicular to the surface of the steel sheet is 10% or more and 50% or less.
    Type: Application
    Filed: February 2, 2017
    Publication date: December 5, 2019
    Applicant: NIPPON STEEL CORPORATION
    Inventors: Masahiro FUDA, Jun MAKI, Soshi FUJITA, Kazuhisa KUSUMI, Shinichiro TABATA
  • Publication number: 20190338381
    Abstract: A method for manufacturing a quenched molding according to the present disclosure is a method including a first heat treatment process of heating a blanked steel material to a temperature higher than its Ac3 transformation point to perform austenite transformation, and then cooling to induce martensite transformation or bainite transformation, and a second heat treatment process of heating the steel material that has undergone the first heat treatment process to a temperature higher than the Ac3 transformation point to perform austenite transformation, and then cooling to induce martensite transformation. After the steel material has been heated to a temperature higher than the Ac3 transformation point in at least one process from out of the first heat treatment process or the second heat treatment process, molding is completed at a temperature higher than an Ar3 transformation point.
    Type: Application
    Filed: November 22, 2017
    Publication date: November 7, 2019
    Applicant: NIPPON STEEL & SUMITOMO METAL CORPORATION
    Inventors: Yoshiaki NAKAZAWA, Shinichiro TABATA, Kazuo HIKIDA, Toshiya SUZUKI, Atsuo KOGA, Koichi HAMADA
  • Patent number: 10435761
    Abstract: A heat-treated steel material includes: a chemical composition expressed by, in mass %: C: 0.16% to 0.38%; Mn: 0.6% to 1.5%; Cr: 0.4% to 2.0%; Ti: 0.01% to 0.10%; B: 0.001% to 0.010%; Si: 0.20% or less; P: 0.05% or less; S: 0.05% or less; N: 0.01% or less; Ni: 0% to 2.0%; Cu: 0% to 1.0%; Mo: 0% to 1.0%; V: 0% to 1.0%; Al: 0% to 1.0%; Nb: 0% to 1.0%; REM: 0% to 0.1%; and the balance: Fe and impurities; and a structure expressed by: retained austenite: 1.5 volume % or less; and the balance: martensite.
    Type: Grant
    Filed: June 6, 2014
    Date of Patent: October 8, 2019
    Assignee: NIPPON STEEL CORPORATION
    Inventors: Shinichiro Tabata, Kazuo Hikida, Nobusato Kojima, Naomitsu Mizui
  • Patent number: 10290875
    Abstract: An electrode material for a secondary cell includes a porous carbon material having an absolute value of a differential value of a mass using a temperature as a parameter exceeding 0 at 360° C. and being 0.016 or more at 290° C. provided by thermally analyzing a mixture of the porous carbon material and S8 sulfur at a mass ratio of 1:2.
    Type: Grant
    Filed: May 20, 2014
    Date of Patent: May 14, 2019
    Assignee: MURATA MANUFACTURING CO., LTD.
    Inventors: Shun Yamanoi, Seiichiro Tabata, Hironori Iida, Kenji Kishimoto, Yosuke Saito, Shinichiro Yamada, Kazumasa Takeshi, Koichiro Hinokuma
  • Patent number: 10060005
    Abstract: A high-strength hot-formed steel sheet member exhibiting both a consistent hardness and delayed-fracture resistance, and is characterized in that: the high-strength hot-formed steel sheet member has a prescribed chemical composition; the degree of Mn segregation ? (=[maximum Mn concentration (mass %) at the sheet center in the thickness direction]/[average Mn concentration (mass %) at a depth of ¼ of the total thickness of the sheet from the surface]) is less than or equal to 1.6; the steel purity value as defined in JIS G 0555 (2003) is less than or equal to 0.08%; the average grain size for prior ? grains is less than or equal to 10 ?m; and the number density of the residual carbides is less than or equal to 4×103 particles/mm2.
    Type: Grant
    Filed: March 26, 2015
    Date of Patent: August 28, 2018
    Assignee: NIPPON STEEL & SUMITOMO METAL CORPORATION
    Inventors: Kazuo Hikida, Shinichiro Tabata, Nobusato Kojima, Takahiro Moriki
  • Publication number: 20180171429
    Abstract: A heat-treated steel sheet member having a chemical including, by mass %: C: 0.05 to 0.50%; Si: 0.50 to 5.0%; Mn: 1.5 to 4.0%; P: 0.05% or less; S: 0.05% or less; N: 0.01% or less; Ti: 0.01 to 0.10%; B: 0.0005 to 0.010%; Cr: optional amounts of Ni, Cu, Mo, V, Ca, Al, Nb, and REM, with the balance: Fe and impurities. The steel sheet member has a microstructure comprising: mainly martensite; and retained austenite of which a volume ratio is 5.0% or higher, a number density of retained carbide in the steel sheet member having circle-equivalent diameters of 0.1 mm or larger is 4.0×103/mm2 or lower, [(log fg0?log fg(0.02))/0.02<20.0] is satisfied when mechanical properties are measured using a sheet specimen specified in ASTM E8, a tensile strength is 1.4 GPa or higher, and a total elongation is 8.0% or higher.
    Type: Application
    Filed: April 7, 2016
    Publication date: June 21, 2018
    Inventors: Yoshihiro SUWA, Shinichiro TABATA, Masafumi AZUMA, Kazuo HIKIDA
  • Publication number: 20180135155
    Abstract: A steel sheet for heat treatment having a chemical composition including, by mass %: C: 0.05 to 0.50%; Si: 0.50 to 5.0%; Mn; 1.5 to 4.0%; P: 0.05% or less; S: 0.05% or less; N: 0.01% or less; Ti: 0.01 to 0.10%; B: 0.0005 to 0.010%; Cr: 0 to 1.0%; Ni: 0 to 2.0%; Cu: 0 to 1.0%; Mo: 0 to 1.0%; V: 0 to 1.0%; Ca: 0 to 0.01%; Al: 0 to 1.0%; Nb: 0 to 1.0%; REM: 0 to 0.1%; and the balance: Fe and impurities, wherein a maximum height roughness Rz on a surface of the steel sheet is 3.0 to 10.0 ?m, and a number density of carbide being present in the steel sheet and having circle-equivalent diameters of 0.1 ?m or larger is 8.0×103/mm2 or lower.
    Type: Application
    Filed: April 7, 2016
    Publication date: May 17, 2018
    Inventors: Yoshihiro SUWA, Shinichiro TABATA, Masafumi AZUMA, Kazuo HIKIDA
  • Publication number: 20180135145
    Abstract: A heat-treated steel sheet member having a composition including, by mass %: C: 0.05 to 0.50%; Si: 0.50 to 5.0%; Mn: 1.5 to 4.0%; P: 0.05% or less; S: 0.05% or less; N: 0.01% or less; Ti: 0.01 to 0.10%; B: 0.0005 to 0.010%; Cr: 0 to 1.0%; Ni: 0 to 2.0%; Cu; 0 to 1.0%; Mo: 0 to 1.0%; V: 0 to 1.0%; Ca: 0 to 0.01%; Al: 0 to 1.0%; Nb: 0 to 1.0%; REM: 0 to 0.1%; and the balance: Fe and impurities. The steel sheet member has a microstructure comprising mainly martensite and retained austenite of which a volume ratio is 0.2 to 1.0%, a number density of retained carbide in the steel sheet member having circle-equivalent diameters of 0.1 mm or larger is 4.0×103/mm2 or lower, a tensile strength is 1.4 GPa or higher, and a yield ratio is 0.65 or higher.
    Type: Application
    Filed: April 7, 2016
    Publication date: May 17, 2018
    Inventors: Yoshihiro SUWA, Shinichiro TABATA, Masafumi AZUMA, Kazuo HIKIDA
  • Publication number: 20170096724
    Abstract: A high-strength hot-formed steel sheet member exhibiting both a consistent hardness and delayed-fracture resistance, and is characterized in that: the high-strength hot-formed steel sheet member has a prescribed chemical composition; the degree of Mn segregation ? (=[maximum Mn concentration (mass %) at the sheet center in the thickness direction]/[average Mn concentration (mass %) at a depth of ¼ of the total thickness of the sheet from the surface]) is less than or equal to 1.6; the steel purity value as defined in JIS G 0555 (2003) is less than or equal to 0.08%; the average grain size for prior ? grains is less than or equal to 10 ?m; and the number density of the residual carbides is less than or equal to 4×103 particles/mm2.
    Type: Application
    Filed: March 26, 2015
    Publication date: April 6, 2017
    Applicant: NIPPON STEEL & SUMITOMO METAL CORPORATION
    Inventors: Kazuo HIKIDA, Shinichiro TABATA, Nobusato KOJIMA, Takahiro MORIKI