Patents by Inventor Yoko Hase
Yoko Hase 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).
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Patent number: 10930962Abstract: The nitrogen battery of the present disclosure includes a positive electrode that uses nitrogen as a positive electrode active material, a negative electrode, and an ion conducting medium that contains a silane compound and conducts alkali metal ions.Type: GrantFiled: January 28, 2019Date of Patent: February 23, 2021Assignee: KABUSHIKI KAISHA TOYOTA CHUO KENKYUSHOInventors: Nobuhiro Ogihara, Yoko Hase
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Publication number: 20190260014Abstract: The nitrogen battery of the present disclosure includes a positive electrode that uses nitrogen as a positive electrode active material, a negative electrode, and an ion conducting medium that contains a silane compound and conducts alkali metal ions.Type: ApplicationFiled: January 28, 2019Publication date: August 22, 2019Applicant: KABUSHIKI KAISHA TOYOTA CHUO KENKYUSHOInventors: Nobuhiro OGIHARA, Yoko HASE
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Publication number: 20160261013Abstract: A nonaqueous electrolyte air battery 20 according to the present invention includes a negative electrode 21 having a negative electrode active material, a first positive electrode 22 including oxygen as a positive electrode active material, a nonaqueous electrolyte 26 which is in contact with the first positive electrode 22 and includes a compound having a structure containing a radical skeleton whose spin density measured by electron spin resonance spectroscopy is 1019 spins/g or more, and a second positive electrode 27 which is in contact with the nonaqueous electrolyte 26 and oxidizes the above compound. This first positive electrode 22 is to be connected when the nonaqueous electrolyte air battery 20 is discharged, and the second positive electrode 27 is to be connected when the nonaqueous electrolyte air battery 20 is charged.Type: ApplicationFiled: February 1, 2016Publication date: September 8, 2016Applicant: KABUSHIKI KAISHA TOYOTA CHUO KENKYUSHOInventors: Yoko HASE, Toru SHIGA
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Patent number: 9209489Abstract: An electrochemical cell 10 includes a case 12 serving as an insulating tube, an inner container 13 disposed on the inside wall of the case 12, a separator 14 separating the inside of the case 12 into a positive electrode chamber 20 and a negative electrode chamber 30, a mixed molten liquid 22 which is stored in the positive electrode chamber 20 and which contains a positive electrode active material and a supporting electrolyte, and a negative electrode active material 32 stored in the negative electrode chamber 30. The mixed molten liquid is a liquid obtained by mixing a radical compound having a nitroxyl radical site and serving as an active material and a metal salt having a fluoroalkylsulfonyl site and serving as a supporting electrolyte.Type: GrantFiled: November 13, 2013Date of Patent: December 8, 2015Assignee: KABUSHIKI KAISHA TOYOTA CHUO KENKYUSHOInventors: Kensuke Takechi, Yoko Hase, Emi Ito
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Publication number: 20140147720Abstract: An electrochemical cell 10 includes a case 12 serving as an insulating tube, an inner container 13 disposed on the inside wall of the case 12, a separator 14 separating the inside of the case 12 into a positive electrode chamber 20 and a negative electrode chamber 30, a mixed molten liquid 22 which is stored in the positive electrode chamber 20 and which contains a positive electrode active material and a supporting electrolyte, and a negative electrode active material 32 stored in the negative electrode chamber 30. The mixed molten liquid is a liquid obtained by mixing a radical compound having a nitroxyl radical site and serving as an active material and a metal salt having a fluoroalkylsulfonyl site and serving as a supporting electrolyte.Type: ApplicationFiled: November 13, 2013Publication date: May 29, 2014Applicant: KABUSHIKI KAISHA TOYOTA CHUO KENKYUSHOInventors: Kensuke TAKECHI, Yoko HASE, Emi ITO
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Patent number: 8465877Abstract: A F-type electrochemical cell, which is a lithium air battery, includes a positive electrode facing a negative electrode composed of metallic lithium with a separator provided therebetween in a casing. Air is capable of flow to the positive electrode. A nonaqueous electrolytic solution is charged into a space between the positive electrode and the negative electrode. At least one of the positive electrode and the nonaqueous electrolytic solution of the lithium air battery contains a compound having a stable radical skeleton. The compound also serves as a redox catalyst for oxygen.Type: GrantFiled: March 20, 2009Date of Patent: June 18, 2013Assignee: Kabushiki Kaisha Toyota Chuo KenkyushoInventors: Yoko Hase, Tohru Shiga, Mitsuru Nakano, Kensuke Takechi, Norihiko Setoyama
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Patent number: 8415074Abstract: A nonaqueous electrolyte battery includes a negative electrode composed of a metallic lithium foil and a positive electrode, the negative electrode and the positive electrode being arranged so as to face each other with an ion-conducting medium therebetween. The positive electrode is formed by a method in which a conductive agent and a binder are mixed, and then the mixture is press-formed onto a current collector. The ion-conducting medium contains, in addition to a lithium salt such as lithium hexafluorophosphate, a halogen such as iodine, and a halogen compound (e.g., lithium iodide). Furthermore, the positive electrode may contain a lithium halide.Type: GrantFiled: September 4, 2008Date of Patent: April 9, 2013Assignee: Kabushiki Kaisha Toyota Chuo KenkyushoInventors: Mitsuru Nakano, Tohru Shiga, Yoko Hase
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Publication number: 20090239113Abstract: A F-type electrochemical cell, which is a lithium air battery, includes a positive electrode facing a negative electrode composed of metallic lithium with a separator provided therebetween in a casing. Air is capable of flow to the positive electrode. A nonaqueous electrolytic solution is charged into a space between the positive electrode and the negative electrode. At least one of the positive electrode and the nonaqueous electrolytic solution of the lithium air battery contains a compound having a stable radical skeleton. The compound also serves as a redox catalyst for oxygen.Type: ApplicationFiled: March 20, 2009Publication date: September 24, 2009Applicant: KABUSHIKI KAISHA TOYOTA CHUO KENKYUSHOInventors: Yoko Hase, Tohru Shiga, Mitsuru Nakano, Kensuke Takechi, Norihiko Setoyama
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Publication number: 20090061315Abstract: A nonaqueous electrolyte battery includes a negative electrode composed of a metallic lithium foil and a positive electrode, the negative electrode and the positive electrode being arranged so as to face each other with an ion-conducting medium therebetween. The positive electrode is formed by a method in which a conductive agent and a binder are mixed, and then the mixture is press-formed onto a current collector. The ion-conducting medium contains, in addition to a lithium salt such as lithium hexafluorophosphate, a halogen such as iodine, and a halogen compound (e.g., lithium iodide). Furthermore, the positive electrode may contain a lithium halide.Type: ApplicationFiled: September 4, 2008Publication date: March 5, 2009Applicant: KABUSHIKI KAISHA TOYOTA CHUO KENKYUSHOInventors: Mitsuru Nakano, Tohru Shiga, Yoko Hase
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Patent number: 6949674Abstract: A novel aromatic carboxylic acid useful as a material for macromolecular compounds and, in particular, for polycondensed macromolecular compounds exhibiting excellent heat resistance, an acid halide derivative thereof and a process for producing these compounds are disclosed. The aromatic carboxylic acid and the acid halide derivative thereof have structures represented general formulae (1) and (2), respectively, and can be efficiently produced from a dialkyl ester derivative of isophthalic acid and an acetylene derivative in accordance with the disclosed process comprising specific steps. In the above formulae, A represents: —C?C—R1??(a) or (R1 represents hydrogen atom, an alkyl group or an aromatic group, R2 represents an alkyl group or an aromatic group) and X represents a halogen atom.Type: GrantFiled: November 26, 2001Date of Patent: September 27, 2005Assignee: Sumitomo Bakelite Company, Ltd.Inventors: Masako Okanuma, Yuichi Ishida, Yoko Hase, Nobuhiro Higashida, Takashi Enoki
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Publication number: 20040068139Abstract: A novel aromatic carboxylic acid useful as a material for macromolecular compounds and, in particular, for polycondensed macromolecular compounds exhibiting excellent heat resistance, an acid halide derivative thereof and a process for producing these compounds are disclosed. The aromatic carboxylic acid and the acid halide derivative thereof have structures represented general formulae (1) and (2), respectively, and can be efficiently produced from a dialkyl ester derivative of isophthalic acid and an acetylene derivative in accordance with the disclosed process comprising specific steps.Type: ApplicationFiled: October 6, 2003Publication date: April 8, 2004Inventors: Masako Okanuma, Yuichi Ishida, Yoko Hase, Nobuhiro Higashida, Takashi Enoki
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Patent number: 6380271Abstract: The present invention provides a material for electrical insulating organic film, superior in electrical properties, thermal properties and low water absorption; an electrical insulating organic film made from the material; and a process for production of the film. That is, the present invention provides an electrical insulating organic film having fine pores, consisting of a layer of a polybenzoxazole resin represented by the following general formula (1): wherein n is an integer of 2 to 1,000; X is a tetravalent organic group; and Y is a bivalent organic group; a material for electrical insulating organic film obtained by mixing a polybenzoxazole precursor or a polybenzoxazole resin, with an oligomer; and a material for electrical insulating organic film, obtained by reacting at least one carboxylic acid terminal of a polybenzoxazole precursor with an amino group- or hydroxyl group-containing oligomer.Type: GrantFiled: June 27, 2000Date of Patent: April 30, 2002Assignee: Sumitomo Bakelite Company LimitedInventors: Takashi Enoki, Takashi Yamaji, Mitsumoto Murayama, Yoko Hase, Toshimasa Eguchi