Patents by Inventor Hajime Hasegawa
Hajime Hasegawa 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: 20180315984Abstract: Disclosed is a stacked battery that can flow a larger rounding current in a short-circuit current shunt part than in an electric element when a short circuit occurs in the short-circuit current shunt part and the electric element in nailing, the stacked battery in which an electrical resistance of a current collector tab of the short-circuit current shunt part is smaller than an electrical resistance of a current collector tab of the electric element.Type: ApplicationFiled: April 13, 2018Publication date: November 1, 2018Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Hajime HASEGAWA, Norihiro OSE, Shigenori HAMA, Hideaki NISHIMURA, Yuki MATSUSHITA, Yusuke OKUHATA, Mitsuru TATEISHI, Hideyo EBISUZAKI
-
Publication number: 20180316049Abstract: A main object of the present disclosure is to provide a stacked battery in which an unevenness of short circuit resistance among a plurality of cells is suppressed. The present disclosure achieves the object by providing a stacked battery comprising: a plurality of cells in a thickness direction, wherein the plurality of cells are electrically connected in parallel; each of the plurality of cells includes a cathode current collector, a cathode active material layer, a solid electrolyte layer, an anode active material layer, and an anode current collector, in this order; the stacked battery includes a surface-side cell that is located on a surface side of the stacked battery, and a center-side cell that is located on a center side rather than the surface-side cell; and a contact resistance between the cathode current collector and the anode current collector in the surface-side cell is more than a contact resistance between the cathode current collector and the anode current collector in the center-side cell.Type: ApplicationFiled: April 13, 2018Publication date: November 1, 2018Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Hajime HASEGAWA, Yuki MATSUSHITA, Hideaki NISHIMURA, Yusuke OKUHATA, Norihiro OSE, Mitsuru TATEISHI, Shigetaka NAGAMATSU, Takayuki UCHIYAMA, Shigenori HAMA, Dai KATO, Naohiro MASHIMO, Hideyo EBISUZAKI, Ayano KOBAYASHI, Hisataka FUJIMAKI
-
Publication number: 20180316048Abstract: A main object of the present disclosure is to provide a stacked battery in which an unevenness of short circuit resistance among a plurality of cells is suppressed.Type: ApplicationFiled: April 13, 2018Publication date: November 1, 2018Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Hajime HASEGAWA, Yuki MATSUSHITA, Hideaki NISHIMURA, Yusuke OKUHATA, Norihiro OSE, Mitsuru TATEISHI, Shigetaka NAGAMATSU, Takayuki UCHIYAMA, Shigenori HAMA, Dai KATO, Naohiro MASHIMO, Hideyo EBISUZAKI, Ayano KOBAYASHI, Hisataka FUJIMAKI
-
Publication number: 20180316065Abstract: A main object of the present disclosure is to provide a stacked battery in which sneak current caused by an unevenness of a short circuit resistance among a plurality of cells, is suppressed.Type: ApplicationFiled: April 13, 2018Publication date: November 1, 2018Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Hajime HASEGAWA, Yuki MATSUSHITA, Hideaki NISHIMURA, Yusuke OKUHATA, Norihiro OSE, Mitsuru TATEISHI, Shigetaka NAGAMATSU, Takayuki UCHIYAMA, Shigenori HAMA, Dai KATO, Naohiro MASHIMO, Hideyo EBISUZAKI, Ayano KOBAYASHI, Hisataka FUJIMAKI
-
Publication number: 20180316066Abstract: A main object of the present disclosure is to provide a stacked battery in which the unevenness of short circuit resistance among a plurality of cells is suppressed.Type: ApplicationFiled: April 13, 2018Publication date: November 1, 2018Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Hajime HASEGAWA, Yuki MATSUSHITA, Hideaki NISHIMURA, Yusuke OKUHATA, Norihiro OSE, Mitsuru TATEISHI, Shigetaka NAGAMATSU, Takayuki UCHIYAMA, Shigenori HAMA, Dai KATO, Naohiro MASHIMO, Hideyo EBISUZAKI, Ayano KOBAYASHI, Hisataka FUJIMAKI
-
Publication number: 20180305798Abstract: This steel component includes, by mass %, C: 0.50% to 0.65%, Si: 0.60% to 1.20%, Mn: 0.60% to 1.00%, P: 0.040% to 0.060%, S: 0.060% to 0.100%, Cr: 0.05% to 0.20%, V: 0.25% to 0.40%, Bi: 0.0001% to 0.0050%, N: 0.0020% to 0.0080%, and a remainder including Fe and impurities, in which a steel structure is a ferrite-pearlite, and an area ratio of a ferrite therein is 20% or more.Type: ApplicationFiled: December 21, 2016Publication date: October 25, 2018Applicant: NIPPON STEEL & SUMITOMO METAL CORPORATIONInventors: Shinya TERAMOTO, Akira SHIGA, Hajime HASEGAWA, Hideo MIZUKAMI
-
Publication number: 20180301747Abstract: Disclosed is a method for producing an all-solid-state lithium ion secondary battery being excellent in cycle characteristics.Type: ApplicationFiled: April 11, 2018Publication date: October 18, 2018Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Norihiro OSE, Hajime HASEGAWA, Mitsutoshi OTAKI, Yusuke KINTSU
-
Publication number: 20180301753Abstract: Provided are an anode mixture configured to provide excellent cycle characteristics when used in an all-solid-state lithium ion secondary battery, an anode containing the anode mixture, and an all-solid-state lithium ion secondary battery containing the anode. Disclosed is an anode mixture for an all-solid-state lithium ion secondary battery, wherein the anode mixture contains an anode active material, a solid electrolyte and an electroconductive material; wherein the anode active material contains at least one active material selected from the group consisting of a metal that is able to form an alloy with Li and an oxide of the metal; and wherein a value obtained by dividing, by a BET specific surface area (m2/g) of the solid electrolyte, a volume percentage (%) of the electroconductive material when a volume of the anode mixture is determined as 100 volume %, is 0.09 or more and 1.61 or less.Type: ApplicationFiled: April 9, 2018Publication date: October 18, 2018Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Norihiro OSE, Hajime HASEGAWA, Yusuke KINTSU, Mitsutoshi OTAKI
-
Publication number: 20180301746Abstract: Disclosed is an anode mixture configured to provide an all-solid-state lithium ion secondary battery being excellent in cycle characteristics when it is used in the battery, an anode including the anode mixture, and an all-solid-state lithium ion secondary battery including the anode. The anode mixture may be an anode mixture for an all-solid-state lithium ion secondary battery, wherein the anode mixture contains an anode active material, a solid electrolyte and an electroconductive material; and wherein a value obtained by multiplying, by a bulk density of the solid electrolyte, a volume percentage (%) of the electroconductive material when a volume of the anode mixture is determined as 100 volume %, is 0.53 or more and 3.0 or less.Type: ApplicationFiled: April 11, 2018Publication date: October 18, 2018Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Norihiro OSE, Hajime HASEGAWA, Yusuke KINTSU, Mitsutoshi OTAKI
-
Publication number: 20180301689Abstract: Disclosed is a method for producing an all-solid-state lithium ion secondary battery being excellent in cycle characteristics. The production method may be a method for producing an all-solid-state lithium ion secondary battery, wherein the method comprises: an anode mixture forming step of obtaining an anode mixture by drying a raw material for an anode mixture, which contains an anode active material, a solid electrolyte and an electroconductive material; and wherein, a value obtained by dividing a volume percentage (%) of the electroconductive material when the volume of the anode mixture is determined as 100 volume %, by a voidage V (%) of the inside of the anode mixture calculated by the following formula (1), is 2.3 or more and 16.Type: ApplicationFiled: April 11, 2018Publication date: October 18, 2018Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Norihiro OSE, Hajime HASEGAWA, Mitsutoshi OTAKI, Yusuke KINTSU
-
Publication number: 20180294469Abstract: In an all-solid-state battery including at least one short-circuit current shunt part and at least one electric element which are stacked, when the battery is constrained, cracking etc. of the adhesive in the short-circuit current shunt pail is prevented.Type: ApplicationFiled: March 26, 2018Publication date: October 11, 2018Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Hajime HASEGAWA, Yuki MATSUSHITA, Mitsuru TATEISHI, Hideaki NISHIMURA, Hideyo EBISUZAKI, Yusuke OKUHATA, Norihiro OSE, Shigenori HAMA
-
Publication number: 20180294470Abstract: A short-circuit current shunt part does not cause any short circuit during normal battery use, causes stable short circuits in nail penetration, and suppresses sudden temperature rise after nail penetration. A stacked battery includes at least one short-circuit current shunt part including first and second current collector layers, and an insulating layer between the first and second current collector layers, and electric elements each including a cathode current collector layer, a cathode material layer, an electrolyte layer, an anode material layer, and an anode current collector layer, with all layers being stacked. The first current collector layer is electrically connected with the cathode current collector layer, the second current collector layer is electrically connected with the anode current collector layer, the electric elements are electrically connected to each other in parallel, and the short-circuit current shunt part insulating layer formed of a thermosetting resin sheet.Type: ApplicationFiled: March 27, 2018Publication date: October 11, 2018Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Hajime HASEGAWA, Yuki MATSUSHITA, Mitsuru TATEISHI, Hideyo EBISUZAKI, Hideaki NISHIMURA, Yusuke OKUHATA, Shigenori HAMA, Norihiro OSE
-
Publication number: 20180294468Abstract: Disclosed is an all-solid-state battery that makes it possible for a larger rounding current flow into a short-circuit current shunt part than to each electric element when the short-circuit current shunt part and the electric elements short-circuit in nail penetration testing.Type: ApplicationFiled: March 19, 2018Publication date: October 11, 2018Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Hajime HASEGAWA, Yuki MATSUSHITA, Mitsuru TATEISHI, Hideyo EBISUZAKI, Hideaki NISHIMURA, Yusuke OKUHATA, Shigenori HAMA, Norihiro OSE
-
Publication number: 20180294471Abstract: Disclosed is a stacked battery including at least one short-circuit current shunt part and electric elements, wherein: the shunt part includes first and second current collector layers, and an insulating layer provided between the first and second current collector layers, all of these layers being stacked; each power generation element includes a cathode current collector layer, a cathode material layer, an electrolyte layer, an anode material layer, and an anode current collector layer all of these layers being stacked; the first current collector layer is electrically connected to the cathode current collector layer and the second current collector layer to the anode current collector layer; the electric elements are electrically connected in parallel; and the shunt part next to the electric elements includes a PPTC layer between the first current collector layer and the insulating layer and/or between the second current collector layer and the insulating layer.Type: ApplicationFiled: March 30, 2018Publication date: October 11, 2018Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Hajime HASEGAWA, Yuki MATSUSHITA, Mitsuru TATEISHI, Hideyo EBISUZAKI, Hideaki NISHIMURA, Yusuke OKUHATA, Shigenori HAMA, Norihiro OSE
-
Publication number: 20180291486Abstract: There is provided a hot forging steel including, by mass %, C: more than 0.30% and less than 0.60%, Si: 0.10% to 0.90%, Mn: 0.50% to 2.00%, S: 0.010% to 0.100%, Cr: 0.01% to 1.00%, Al: more than 0.005% and 0.100% or less, N: 0.0030% to 0.0200%, Bi: more than 0.0001% and 0.0050% or less, Ti: 0% or more and less than 0.040%, V: 0% to 0.30%, Ca: 0% to 0.0040%, Pb: 0% to 0.40%, and a remainder including Fe and impurities, in which P and O in the impurities are respectively P: 0.050% or less and O: 0.0050% or less, an expression d+3?<20 is satisfied, and a presence density of MnS having an equivalent circle diameter of smaller than 2.0 ?m is 300 pieces/mm2 or more in a cross section parallel to a rolling direction of a steel.Type: ApplicationFiled: September 30, 2016Publication date: October 11, 2018Applicant: NIPPON STEEL & SUMITOMO METAL CORPORATIONInventors: Akira SHIGA, Suguru YOSHIDA, Manabu KUBOTA, Hajime HASEGAWA, Hideo MIZUKAMI
-
Publication number: 20180294531Abstract: A method of producing an all-solid battery includes pressing a laminate in a state where the laminate is insulated from a press machine. The laminate includes a negative electrode current collector layer, a negative electrode active material layer, a solid electrolyte layer, and a positive electrode active material layer. The negative electrode current collector layer includes copper, at least one of the negative electrode active material layer and the solid electrolyte layer includes a sulfide solid electrolyte, and the press machine is an anisotropic press machine.Type: ApplicationFiled: March 30, 2018Publication date: October 11, 2018Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Kengo HAGA, Tomoya SUZUKI, Norihiro OSE, Akiji HAYASHI, Hiroyuki INOUE, Takayuki UCHIYAMA, Hajime HASEGAWA, Mitsutoshi OTAKI, Shigenori HAMA, Hiroyuki YAMAGUCHI, Dai KATO
-
Publication number: 20180291487Abstract: There is provided a steel for machine structural use including, as a chemical composition, by mass %, C: 0.40% to 0.70%, Si: 0.15% to 3.00%, Mn: 0.30% to 2.00%, Cr: 0.01% or more and less than 0.50%, S: 0.003% to 0.070%, Bi: more than 0.0001% and 0.0050% or less, N: 0.0030% to 0.0075%, Al: 0.003% to 0.100%, and P: 0.050% or less; and as necessary, B, Mo, Ni, Cu, Ca, Mg, Zr, Rem, Ti, Nb, V, Sb, Te, and Pb, a remainder including Fe and impurities, in which Expressions 290×C+50×Si+430?620 and d+3?<20 are satisfied, and a presence density of MnS having an equivalent circle diameter of smaller than 2.0 ?m is 300 pieces/mm2 or more in a cross section parallel to a longitudinal direction.Type: ApplicationFiled: October 14, 2016Publication date: October 11, 2018Applicant: NIPPON STEEL & SUMITOMO METAL CORPORATIONInventors: Kei MIYANISHI, Akira SHIGA, Hajime HASEGAWA, Hideo MIZUKAMI
-
Publication number: 20180291485Abstract: There is a hot-rolled steel according to one aspect of the invention including predetermined chemical compositions including 0.0001 to 0.0050 mass % of Bi, in which 90 area % or more of a metallographic structure is configured with a ferrite and a pearlite, and an average number density of Mn sulfides extending along a rolling direction and having an aspect ratio exceeding 10 and equal to or smaller than 30, which is measured on a cross section parallel to the rolling direction, is 50 to 200 number/mm2.Type: ApplicationFiled: October 19, 2016Publication date: October 11, 2018Applicant: NIPPON STEEL & SUMITOMO METAL CORPORATIONInventors: Suguru YOSHIDA, Shinya TERAMOTO, Akira SHIGA, Manabu KUBOTA, Hajime HASEGAWA, Hideo MIZUKAMI
-
Patent number: 10079383Abstract: An all-solid battery that includes a negative electrode layer, a positive electrode layer, a solid electrolyte layer disposed between the positive electrode layer and the negative electrode layer, a negative electrode current collector connected to the negative electrode layer, and a positive electrode current collector connected to the positive electrode layer, wherein the negative electrode layer contains a sulfide solid electrolyte, the negative electrode current collector contains a metal that reacts with the sulfide solid electrolyte, a sulfur compound layer that contains a sulfur compound generated by a reaction of the sulfide solid electrolyte and the metal is present between the negative electrode layer and the negative electrode current collector, charge capacity when constant current charge was conducted up to 3.6 V at 0.3 C or more and 3.6 C or less in an initial charge after preparation of the all-solid battery is 50 mAh/g or more and 90 mAh/g or less.Type: GrantFiled: January 14, 2014Date of Patent: September 18, 2018Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Kengo Haga, Norihiro Ose, Hajime Hasegawa
-
Publication number: 20180205239Abstract: A power supply module to be installed on a drive unit in a removable manner includes: a lithium ion capacitor unit that contains at least one lithium ion capacitor cell; a power supply line for supplying power to the drive unit; a first switch unit provided on the power supply line; a protective circuit constituted so that it turns off the first switch based on the voltage of the lithium ion capacitor; and a second switch unit that has at least one switching element, provided between the lithium ion capacitor unit and the protective circuit. The second switch unit is constituted so that it turns on based on a control signal input from the drive unit while the power supply module is installed on the drive unit, and turns off while the control signal is not input. The power supply can suppress leak current from a lithium ion capacitor.Type: ApplicationFiled: January 11, 2018Publication date: July 19, 2018Inventors: Toshifumi MATSUTAKA, Mitsuo NAKAJIMA, Hajime HASEGAWA