Patents by Inventor Yuji Zenitani
Yuji Zenitani 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: 8597488Abstract: The method for reducing carbon dioxide of the present disclosure includes a step (a) and a step (b) as follows. A step (a) of preparing an electrochemical cell. The electrochemical cell comprises a working electrode, a counter electrode and a vessel. The vessel stores an electrolytic solution. The working electrode contains at least one nitride selected from the group consisting of titanium nitride, zirconium nitride, hafnium nitride, tantalum nitride, molybdenum nitride and iron nitride. The electrolytic solution contains carbon dioxide. The working electrode and the counter electrode are in contact with the electrolytic solution. A step (b) of applying a negative voltage and a positive voltage to the working electrode and the counter electrode, respectively, to reduce the carbon dioxide.Type: GrantFiled: May 31, 2012Date of Patent: December 3, 2013Assignee: Panasonic CorporationInventors: Masahiro Deguchi, Yuji Zenitani, Reiko Taniguchi, Satoshi Yotsuhashi
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Patent number: 8518595Abstract: A proton-conducting structure that exhibits favorable proton conductivity in the temperature range of not lower than 100° C., and a method for manufacturing the same are provided. After a pyrophosphate salt containing Sn, Zr, Ti or Si is mixed with phosphoric acid, the mixture is maintained at a temperature of not less than 80° C. and not more than 150° C., and thereafter maintained at a temperature of not less than 200° C. and not more than 400° C. to manufacture a proton-conducting structure. The proton-conducting structure of the present invention has a core made of tin pyrophosphate, and a coating layer formed on the surface of the core, the coating layer containing Sn and O, and having a coordination number of O with respect to Sn of grater than 6.Type: GrantFiled: September 14, 2012Date of Patent: August 27, 2013Assignee: Panasonic CorporationInventors: Yuji Zenitani, Takashi Otsuka, Tomoko Suzuki, Tomoyuki Komori
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Publication number: 20130071766Abstract: A proton-conducting structure that exhibits favorable proton conductivity in the temperature range of not lower than 100° C., and a method for manufacturing the same are provided. After a pyrophosphate salt containing Sn, Zr, Ti or Si is mixed with phosphoric acid, the mixture is maintained at a temperature of not less than 80° C. and not more than 150° C., and thereafter maintained at a temperature of not less than 200° C. and not more than 400° C. to manufacture a proton-conducting structure. The proton-conducting structure of the present invention has a core made of tin pyrophosphate, and a coating layer formed on the surface of the core, the coating layer containing Sn and O, and having a coordination number of O with respect to Sn of grater than 6.Type: ApplicationFiled: September 14, 2012Publication date: March 21, 2013Inventors: Yuji Zenitani, Takashi Otsuka, Tomoko Suzuki, Tomoyuki Komori
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Publication number: 20120318680Abstract: A device for reducing carbon dioxide includes a vessel for holding an electrolyte solution including carbon dioxide, a working electrode and a counter electrode. The working electrode contains boron particles.Type: ApplicationFiled: December 19, 2011Publication date: December 20, 2012Applicant: Panasonic CorporationInventors: Yuji ZENITANI, Reiko TANIGUCHI, Satoshi YOTSUHASHI, Masahiro DEGUCHI
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Publication number: 20120292199Abstract: The method for reducing carbon dioxide of the present disclosure includes a step (a) and a step (b) as follows. A step (a) of preparing an electrochemical cell. The electrochemical cell comprises a working electrode, a counter electrode and a vessel. The vessel stores an electrolytic solution. The working electrode contains at least one carbide selected from the group consisting of zirconium carbide, hafnium carbide, niobium carbide, chromium carbide and tungsten carbide. The electrolytic solution contains carbon dioxide. The working electrode and the counter electrode are in contact with the electrolytic solution. A step (b) of applying a negative voltage and a positive voltage to the working electrode and the counter electrode, respectively, to reduce the carbon dioxide.Type: ApplicationFiled: May 31, 2012Publication date: November 22, 2012Applicant: Panasonic CorporationInventors: Masahiro DEGUCHI, Yuji ZENITANI, Reiko TANIGUCHI, Satoshi YOTSUHASHI
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Patent number: 8298718Abstract: A proton-conducting structure that exhibits favorable proton conductivity in the temperature range of not lower than 100° C., and a method for manufacturing the same are provided. After a pyrophosphate salt containing Sn, Zr, Ti or Si is mixed with phosphoric acid, the mixture is maintained at a temperature of not less than 80° C. and not more than 150° C., and thereafter maintained at a temperature of not less than 200° C. and not more than 400° C. to manufacture a proton-conducting structure. The proton-conducting structure of the present invention has a core made of tin pyrophosphate, and a coating layer formed on the surface of the core, the coating layer containing Sn and O, and having a coordination number of O with respect to Sn of grater than 6.Type: GrantFiled: August 25, 2011Date of Patent: October 30, 2012Assignee: Panasonic CorporationInventors: Yuji Zenitani, Takashi Otsuka, Tomoko Suzuki, Tomoyuki Komori
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Publication number: 20120234691Abstract: The method for reducing carbon dioxide of the present disclosure includes a step (a) and a step (b) as follows. A step (a) of preparing an electrochemical cell. The electrochemical cell comprises a working electrode, a counter electrode and a vessel. The vessel stores an electrolytic solution. The working electrode contains at least one nitride selected from the group consisting of titanium nitride, zirconium nitride, hafnium nitride, tantalum nitride, molybdenum nitride and iron nitride. The electrolytic solution contains carbon dioxide. The working electrode and the counter electrode are in contact with the electrolytic solution. A step (b) of applying a negative voltage and a positive voltage to the working electrode and the counter electrode, respectively, to reduce the carbon dioxide.Type: ApplicationFiled: May 31, 2012Publication date: September 20, 2012Applicant: Panasonic CorporationInventors: Masahiro Deguchi, Yuji Zenitani, Reiko Taniguchi, Satoshi Yotsuhashi
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Publication number: 20120031770Abstract: The method for reducing carbon dioxide of the present invention includes a step (a) and a step (b) as follows. A step (a) of preparing an electrochemical cell. The electrochemical cell comprises a working electrode (21), a counter electrode (23) and a vessel (28). The vessel (28) stores an electrolytic solution (27). The working electrode (21) contains boron carbide. The electrolytic solution (27) contains carbon dioxide. The working electrode (21) and the counter electrode (23) are in contact with the electrolytic solution (27). A step (b) of applying a negative voltage and a positive voltage to the working electrode and the counter electrode, respectively, to reduce the carbon dioxide.Type: ApplicationFiled: October 19, 2011Publication date: February 9, 2012Applicant: Panasonic CorporationInventors: Yuji ZENITANI, Masahiro Deguchi, Satoshi Yotsuhashi, Reiko Taniguchi
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Publication number: 20120024716Abstract: A device for reducing carbon dioxide includes a vessel for holding an electrolyte solution including carbon dioxide, a working electrode and a counter electrode. The working electrode contains metal hexaboride particles.Type: ApplicationFiled: October 7, 2011Publication date: February 2, 2012Applicant: PANASONIC CORPORATIONInventors: Yuji ZENITANI, Reiko TANIGUCHI, Satoshi YOTSUHASHI, Masahiro DEGUCHI
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Publication number: 20120018311Abstract: The carbon dioxide reduction method of the present invention is a method including steps of: bringing an electrode (working electrode) containing a carbide of at least one element selected from Group V elements (vanadium, niobium, and tantalum) into contact with an electrolytic solution; and introducing carbon dioxide into the electrolytic solution to reduce the introduced carbon dioxide by the electrode. The material contained in the electrode, that is, the material containing a carbide of at least one element selected from Group V elements (vanadium, niobium, and tantalum) is the carbon dioxide reduction catalyst of the present invention.Type: ApplicationFiled: July 26, 2011Publication date: January 26, 2012Applicant: PANASONIC CORPORATIONInventors: Satoshi YOTSUHASHI, Reiko Taniguchi, Yuji Zenitani
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Publication number: 20110305963Abstract: A proton-conducting structure that exhibits favorable proton conductivity in the temperature range of not lower than 100° C., and a method for manufacturing the same are provided. After a pyrophosphate salt containing Sn, Zr, Ti or Si is mixed with phosphoric acid, the mixture is maintained at a temperature of not less than 80° C. and not more than 150° C., and thereafter maintained at a temperature of not less than 200° C. and not more than 400° C. to manufacture a proton-conducting structure. The proton-conducting structure of the present invention has a core made of tin pyrophosphate, and a coating layer formed on the surface of the core, the coating layer containing Sn and O, and having a coordination number of O with respect to Sn of grater than 6.Type: ApplicationFiled: August 25, 2011Publication date: December 15, 2011Inventors: Yuji ZENITANI, Takashi Otsuka, Tomoko Suzuki, Tomoyuki Komori
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Patent number: 8029941Abstract: A proton-conducting structure that exhibits favorable proton conductivity in the temperature range of not lower than 100° C., and a method for manufacturing the same are provided. After a pyrophosphate salt containing Sn, Zr, Ti or Si is mixed with phosphoric acid, the mixture is maintained at a temperature of not less than 80° C. and not more than 150° C., and thereafter maintained at a temperature of not less than 200° C. and not more than 400° C. to manufacture a proton-conducting structure. The proton-conducting structure of the present invention has a core made of tin pyrophosphate, and a coating layer formed on the surface of the core, the coating layer containing Sn and O, and having a coordination number of O with respect to Sn of greater than 6.Type: GrantFiled: August 30, 2010Date of Patent: October 4, 2011Assignee: Panasonic CorporationInventors: Yuji Zenitani, Takashi Otsuka, Tomoko Suzuki, Tomoyuki Komori
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Patent number: 7964319Abstract: An object of the present invention is to provide a fuel cell that operates in a temperature range of not lower than 100° C., and a method for manufacturing such a fuel cell. The fuel cell of the present invention has a proton conductive gel, an anode electrode, and a cathode electrode, the proton conductor being sandwiched between the anode electrode and the cathode electrode, in which the proton conductive gel is composed of SnO2, NH3, H2O, and H3PO4, and provided that the molar ratio represented by NH3/SnO2 is X, and the molar ratio represented by P/Sn is Y, X is not less than 0.2 and not greater than 5, and Y is not less than 1.6 and not greater than 3.Type: GrantFiled: June 4, 2010Date of Patent: June 21, 2011Assignee: Panasonic CorporationInventors: Takashi Ohtsuka, Tomoyuki Komori, Atsushi Omote, Yuji Zenitani
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Publication number: 20110053044Abstract: A proton-conducting structure that exhibits favorable proton conductivity in the temperature range of not lower than 100° C., and a method for manufacturing the same are provided. After a pyrophosphate salt containing Sn, Zr, Ti or Si is mixed with phosphoric acid, the mixture is maintained at a temperature of not less than 80° C. and not more than 150° C., and thereafter maintained at a temperature of not less than 200° C. and not more than 400° C. to manufacture a proton-conducting structure. The proton-conducting structure of the present invention has a core made of tin pyrophosphate, and a coating layer formed on the surface of the core, the coating layer containing Sn and O, and having a coordination number of O with respect to Sn of grater than 6.Type: ApplicationFiled: August 30, 2010Publication date: March 3, 2011Applicant: PANASONIC CORPORATIONInventors: Yuji Zenitani, Takashi Otsuka, Tomoko Suzuki, Tomoyuki Komori
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Publication number: 20100310960Abstract: An object of the present invention is to provide a fuel cell that operates in a temperature range of not lower than 100° C., and a method for manufacturing such a fuel cell. The fuel cell of the present invention has a proton conductive gel, an anode electrode, and a cathode electrode, the proton conductor being sandwiched between the anode electrode and the cathode electrode, in which the proton conductive gel is composed of SnO2, NH3, H2O, and H3PO4, and provided that the molar ratio represented by NH3/SnO2 is X, and the molar ratio represented by P/Sn is Y, X is not less than 0.2 and not greater than 5, and Y is not less than 1.6 and not greater than 3.Type: ApplicationFiled: June 4, 2010Publication date: December 9, 2010Applicant: PANASONIC CORPORATIONInventors: Takashi OHTSUKA, Tomoyuki KOMORI, Atsushi OMOTE, Yuji ZENITANI
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Publication number: 20090048114Abstract: There are provided an intermetallic-compound superconductor that is high in superconducting transition temperature, and an alloy superconductor that is high in superconducting transition temperature and excels in malleability and ductility, as well as a method of making such a superconductor with good reproducibility and at a low cost of manufacture. This entirely new intermetallic compound superconductor is made of magnesium (Mg) and beryllium (Be) and has a chemical composition expressed by formula: Mg1Be2, has a hexagonal AlB2 type crystallographic structure and has a superconducting transition temperature (Tc) of 35 K. An alloy containing this intermetallic compound excels in malleability and ductility and constitutes the alloy superconductor having a superconducting transition temperature (Tc) of 35 K and being low in specific resistance for normal conduction at a temperature ranging from the superconducting transition temperature to a room temperature.Type: ApplicationFiled: September 25, 2008Publication date: February 19, 2009Applicant: JAPAN SCIENCE AND TECHNOLOGY AGENCYInventors: Jun AKIMITSU, Yuji ZENITANI, Takahiro MURANAKA, Kazunobu KADOMURA
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Patent number: 7462373Abstract: The present invention provides a method for producing a manganese oxide nanoparticle dispersed material having steps of dissolving manganese nitrate in a polyamide acid solution (Step 1); forming a coating on the surface of the substrate using the polyamide acid solution containing manganese nitrate dissolved therein (Step 2); and carbonizing the polyamide acid and depositing manganese oxide nanoparticles by subjecting the coating to a heat treatment at a temperature not less than 600° C. but not more than 1200° C. (Step 3).Type: GrantFiled: September 14, 2007Date of Patent: December 9, 2008Assignee: Panasonic CorporationInventors: Akira Taomoto, Mitsuru Hashimoto, Yuka Yamada, Nobuyasu Suzuki, Yuji Zenitani
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Patent number: 7449628Abstract: The present invention provides an electric power generation method using a thermoelectric power generation element, a thermoelectric power generation element, and a thermoelectric power generation device, each of which has high thermoelectric power generation performance and can be used for more applications. The thermoelectric power generation element includes a first electrode and a second electrode that are disposed to oppose each other, and a laminate that is interposed between the first and second electrodes and that is electrically connected to both the first and second electrodes, where the laminate has a structure in which SrB6 layers and metal layers containing Cu, Ag, Au, or Al are laminated alternately, a thickness ratio between the metal layer and the SrB6 layer is in a range of metal layer: SrB6 layer=20:1 to 2.Type: GrantFiled: March 26, 2008Date of Patent: November 11, 2008Assignee: Panasonic CorporationInventors: Yuji Zenitani, Tsutomu Kanno, Hideaki Adachi, Yuka Yamada
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Patent number: 7445681Abstract: There are provided an intermetallic-compound superconductor that is high in superconducting transition temperature, and an alloy superconductor that is high in superconducting transition temperature and excels in malleability and ductility, as well as a method of making such a superconductor with good reproducibility and at a low cost of manufacture. This entirely new intermetallic compound superconductor is made of magnesium (Mg) and beryllium (Be) and has a chemical composition expressed by formula: Mg1Be2, has a hexagonal AlB2 type crystallographic structure and has a superconducting transition temperature (Tc) of 35 K. An alloy containing this intermetallic compound excels in malleability and ductility and constitutes the alloy superconductor having a superconducting transition temperature (Tc) of 35 K and being low in specific resistance for normal conduction at a temperature ranging from the superconducting transition temperature to a room temperature.Type: GrantFiled: March 8, 2002Date of Patent: November 4, 2008Assignee: Japan Science and Technology AgencyInventors: Jun Akimitsu, Yuji Zenitani, Takahiro Muranaka, Kazunobu Kadomura
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Publication number: 20080230107Abstract: The present invention provides an electric power generation method using a thermoelectric power generation element, a thermoelectric power generation element, and a thermoelectric power generation device, each of which has high thermoelectric power generation performance and can be used for more applications. The thermoelectric power generation element includes a first electrode and a second electrode that are disposed to oppose each other, and a laminate that is interposed between the first and second electrodes and that is electrically connected to both the first and second electrodes, where the laminate has a structure in which SrB6 layers and metal layers containing Cu, Ag, Au, or Al are laminated alternately, a thickness ratio between the metal layer and the SrB6 layer is in a range of metal layer: SrB6 layer=20:1 to 2.Type: ApplicationFiled: March 26, 2008Publication date: September 25, 2008Applicant: MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.Inventors: Yuji Zenitani, Tsutomu Kanno, Hideaki Adachi, Yuka Yamada