Patents by Inventor Junya Murai
Junya Murai 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: 20210299702Abstract: A present disclosure relates to a metallic film manufacturing method including a first step of forming a layer which has functional groups ion-exchangeable with metal ions on a surface of a resin substrate made of an insulating material, a second step of treating the resin substrate having the layer with a metal ion solution such that metal ions are introduced into the layer by ion exchange, and a third step of treating the resin substrate with a reducing agent such that metal particles are precipitated on a surface of the layer. The present disclosure relates to a metallic film manufacturing method a metallic film in which there are voids between metal particles precipitated on a surface of the metallic film, and the average particle diameter of the metal particles is 5 nm to 200 nm.Type: ApplicationFiled: March 17, 2021Publication date: September 30, 2021Applicants: TOYOTA JIDOSHA KABUSHIKI KAISHA, KONAN GAKUENInventors: Daiki Kuboyama, Akira Kato, Junya Murai, Kensuke Akamatsu
-
Publication number: 20210170481Abstract: The present disclosure provides a decorative coating film, which ensures and/or maintains millimeter wave transmission properties even though the decorative coating film is continuously used. The present disclosure relates to a decorative coating film formed on the surface of a resin substrate positioned in the pathway of a radar device, wherein the decorative coating film at least comprises: fine silver particles or fine silver alloy particles, nickel oxide, and a binding resin having light transmission properties, which binds the fine silver particles or the fine silver alloy particles dispersed in the decorative coating film with one another, wherein the shape of the nickel oxide is a wire shape.Type: ApplicationFiled: February 19, 2021Publication date: June 10, 2021Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Toshimasa HARA, Junya MURAI
-
Patent number: 10954398Abstract: The present disclosure provides a decorative coating film, which ensures and/or maintains millimeter wave transmission properties even though the decorative coating film is continuously used. The present disclosure relates to a decorative coating film formed on the surface of a resin substrate positioned in the pathway of a radar device, wherein the decorative coating film at least comprises: fine silver particles or fine silver alloy particles, nickel oxide, and a binding resin having light transmission properties, which binds the fine silver particles or the fine silver alloy particles dispersed in the decorative coating film with one another, wherein the shape of the nickel oxide is a wire shape.Type: GrantFiled: December 19, 2018Date of Patent: March 23, 2021Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Toshimasa Hara, Junya Murai
-
Publication number: 20190194479Abstract: The present disclosure provides a decorative coating film, which ensures and/or maintains millimeter wave transmission properties even though the decorative coating film is continuously used. The present disclosure relates to a decorative coating film formed on the surface of a resin substrate positioned in the pathway of a radar device, wherein the decorative coating film at least comprises: fine silver particles or fine silver alloy particles, nickel oxide, and a binding resin having light transmission properties, which binds the fine silver particles or the fine silver alloy particles dispersed in the decorative coating film with one another, wherein the shape of the nickel oxide is a wire shape.Type: ApplicationFiled: December 19, 2018Publication date: June 27, 2019Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Toshimasa HARA, Junya Murai
-
Publication number: 20180236559Abstract: A method of producing metal nanoparticles includes: dissolving an organic metal compound in a non-polar solvent, and mixing a polar solvent with the non-polar solvent to prepare a mixed liquid such that the polar solvent accounts for 5 volume % to 67 volume % of all solvents contained in the mixed liquid; and decomposing the organic metal compound by irradiating the prepared mixed liquid with a microwave, to produce metal nanoparticles. The organic metal compound includes: a non-polar group that is transparent to the microwave and that makes the organic metal compound soluble in the non-polar solvent; and a polar group that is disposed on a site of the organic metal compound, where a metal atom is present, and that absorbs the microwave.Type: ApplicationFiled: February 16, 2018Publication date: August 23, 2018Applicants: TOYOTA JIDOSHA KABUSHIKI KAISHA, KONAN GAKUENInventors: Junya MURAI, Kensuke AKAMATSU
-
Publication number: 20180236536Abstract: A method of producing plate-shaped silver nanoparticles includes: preparing a mixed liquid by adding, to a solution containing silver ions, a reducing agent having a standard electrode potential within a range from 0.03 V to 0.8 V and polyvinylpyrrolidone having a weight-average molecular weight of 10000 to 40000; and precipitating silver from the silver ions by irradiating the mixed liquid with a microwave.Type: ApplicationFiled: February 20, 2018Publication date: August 23, 2018Applicants: TOYOTA JIDOSHA KABUSHIKI KAISHA, KONAN GAKUENInventors: Junya MURAI, Hiroshi YANAGIMOTO, Kensuke AKAMATSU
-
Publication number: 20180223108Abstract: Provided is decorative film capable of keeping the brightness and that hardly changes in color during the continuous use. Decorative film is disposed on the surface of a resin base located in a path of a beam of a radar device. The decorative film includes: composite particles, each including a silver particle made of silver and compound including nickel and oxygen, the compound adhering to the silver particle so as to partially surround the surface of the silver particle; and light-transmissive binder resin to bind the composite particles dispersed in the decorative film. Content of the nickel is in a range of 0.5 to 30.0 mass % relative to the silver.Type: ApplicationFiled: January 29, 2018Publication date: August 9, 2018Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Toshimasa HARA, Junya MURAI
-
Patent number: 9755128Abstract: A process for manufacturing a nanocomposite thermoelectric material having a plurality of nanoparticle inclusions. The process includes determining a material composition to be investigated for the nanocomposite thermoelectric material, the material composition including a conductive bulk material and a nanoparticle material. In addition, a range of surface roughness values for the insulating nanoparticle material that can be obtained using current state of the art manufacturing techniques is determined. Thereafter, a plurality of Seebeck coefficients, electrical resistivity values, thermal conductivity values and figure of merit values as a function of the range of nanoparticle material surface roughness values is calculated. Based on these calculated values, a nanocomposite thermoelectric material composition or ranges of compositions is/are selected and manufactured.Type: GrantFiled: June 27, 2014Date of Patent: September 5, 2017Assignees: Toyota Motor Engineering & Manufacturing North America, Inc., Toyota Jidosha Kabushiki KaishaInventors: Debasish Banerjee, Minjuan Zhang, Takuji Kita, Junya Murai
-
Patent number: 9728700Abstract: Provided is a compound which is mixed with a thermoelectric conversion material matrix as a phonon scattering material. The compound is represented by the following formula: (In the above formula, G1 represents a functional group capable of binding to the thermoelectric conversion material matrix; G2 independently represents G1 or CH3; 0?m?5; 0?m??5; 6?n?1000; and 1/1000<(the number of G1/n)?1).Type: GrantFiled: March 25, 2015Date of Patent: August 8, 2017Assignees: TOYOTA JIDOSHA KABUSHIKI KAISHA, ADMATECHS COMPANY LIMITEDInventors: Junya Murai, Tomonari Kogure, Youichiro Kawai, Tomoharu Kataoka, Yoshinori Okawauchi
-
Publication number: 20160190422Abstract: A BiTe-based or CoSb3-based thermoelectric conversion material includes a base phase material in which an oxide layer is formed on a surface of the base phase, in which the thermoelectric conversion material is manufactured by a method including (a) a weak oxidizing process selected from (a1) mixing base phase material powders under a low-oxygen atmosphere and thereafter exposing the base phase material powders to the low-oxygen atmosphere, and (a2) impregnating base phase material powders with alcohol, and (b) an alloying process of performing a heat treatment on a powder obtained in the process (a1) or a solution obtained in (a2), and the processes (a) and (b) are continuously performed.Type: ApplicationFiled: December 22, 2015Publication date: June 30, 2016Applicants: TOYOTA JIDOSHA KABUSHIKI KAISHA, Admatechs Company LimitedInventors: Junya MURAI, Tomonari KOGURE, Youichiro KAWAI, Yoshinori Okawauchi
-
Publication number: 20160107239Abstract: This invention provides a method for manufacturing a nanocomposite thermoelectric conversion material in which phonon-scattering particles having a specific shape are dispersed, reducing thermal conductivity and increasing thermoelectric conversion performance.Type: ApplicationFiled: June 16, 2014Publication date: April 21, 2016Applicants: Admatechs Company Limited, TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Junya MURAI, Tomonari KOGURE, Yoichiro KAWAI, Yoshinori OKAWAUCHI
-
Publication number: 20150280096Abstract: Provided is a compound which is mixed with a thermoelectric conversion material matrix as a phonon scattering material.Type: ApplicationFiled: March 25, 2015Publication date: October 1, 2015Inventors: Junya MURAI, Tomonari KOGURE, Youichiro KAWAI, Tomoharu KATAOKA, Yoshinori OKAWAUCHI
-
Publication number: 20150069284Abstract: A nanocomposite thermoelectric conversion material includes: crystal grains of a matrix phase material; and a grain boundary phase that is formed in an interface between the crystal grains and includes an insulating material. In the interface between the crystal grains of the matrix phase material, an element that forms the matrix phase material and an element that forms the insulating material are bonded by a chemical bond.Type: ApplicationFiled: September 9, 2014Publication date: March 12, 2015Inventors: Junya Murai, Tomonari Kogure, Youichiro Kawai, Yoshinori Okawauchi
-
Publication number: 20140349435Abstract: A thermoelectric semiconductor includes a matrix element that forms a matrix, and a dopant element having an atomic radius that is at least 1.09 times as large as the atomic radius of the matrix element.Type: ApplicationFiled: January 25, 2013Publication date: November 27, 2014Applicants: ADMATECHS COMPANY LIMITED, TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Junya Murai, Yoshinori Okawauchi
-
Publication number: 20140306143Abstract: A process for manufacturing a nanocomposite thermoelectric material having a plurality of nanoparticle inclusions. The process includes determining a material composition to be investigated for the nanocomposite thermoelectric material, the material composition including a conductive bulk material and a nanoparticle material. In addition, a range of surface roughness values for the insulating nanoparticle material that can be obtained using current state of the art manufacturing techniques is determined. Thereafter, a plurality of Seebeck coefficients, electrical resistivity values, thermal conductivity values and figure of merit values as a function of the range of nanoparticle material surface roughness values is calculated. Based on these calculated values, a nanocomposite thermoelectric material composition or ranges of compositions is/are selected and manufactured.Type: ApplicationFiled: June 27, 2014Publication date: October 16, 2014Inventors: Debasish Banerjee, Minjuan Zhang, Takuji Kita, Junya Murai
-
Patent number: 8828277Abstract: A method of producing a nanocomposite thermoelectric conversion material includes preparing a solution that contains salts of a plurality of first elements constituting a thermoelectric conversion material, and a salt of a second element that has a redox potential lower than redox potentials of the first elements; precipitating the first elements, thereby producing a matrix-precursor that is a precursor of a matrix made of the thermoelectric conversion material, by adding a reducing agent to the solution; precipitating the second element in the matrix-precursor, thereby producing slurry containing the first elements and the second element, by further adding the reducing agent to the solution; and alloying the plurality of the first elements, thereby producing the matrix (70) made of the thermoelectric conversion material, and producing nano-sized phonon-scattering particles (80) including the second element, which are dispersed in the matrix (70), by filtering and washing the slurry, and then, heat-treating tType: GrantFiled: June 18, 2010Date of Patent: September 9, 2014Assignee: Toyota Jidosha Kabushiki KaishaInventors: Junya Murai, Takuji Kita
-
Patent number: 8765003Abstract: The invention provides a nanocomposite thermoelectric conversion material (1) in which the matrix has a polycrystalline structure, and crystal grains (10) and a crystal grain boundary phase (12) of a different composition are present therein, and in which the same type of phonon-scattering particles (14) are dispersed within the crystal grains (10) and the crystal grain boundary phase (12).Type: GrantFiled: January 18, 2011Date of Patent: July 1, 2014Assignee: Toyota Jidosha Kabushiki KaishaInventors: Junya Murai, Takuji Kita
-
Publication number: 20140174493Abstract: A nanocomposite thermoelectric conversion material includes a matrix and semiconductor nanowires dispersed as a dispersant in the matrix. The semiconductor nanowires are arranged unidirectionally in a long axis direction of the semiconductor nanowires.Type: ApplicationFiled: August 9, 2012Publication date: June 26, 2014Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Junya Murai, Takuji Kita
-
Patent number: 8721912Abstract: A nanocomposite thermoelectric conversion material (100) includes a crystalline matrix (102) made of a thermoelectric conversion material; and phonon-scattering particles (108) dispersed in the crystalline matrix (102). Each phonon-scattering particle (108) includes at least one amorphous nanoparticle (106) coated with a crystalline film (104) having a nano-order thickness, and the crystalline structure of the crystalline film (104) is different from the crystalline structure of the thermoelectric conversion material.Type: GrantFiled: October 20, 2010Date of Patent: May 13, 2014Assignee: Toyota Jidosha Kabushiki KaishaInventors: Junya Murai, Takuji Kita
-
Patent number: 8628691Abstract: A nanocomposite thermoelectric conversion material includes a matrix of the thermoelectric conversion material; and a dispersed material that is dispersed in the matrix of the thermoelectric conversion material, and that is in a form of nanoparticles. Roughness of an interface between the matrix of the thermoelectric conversion material and the nanoparticles of the dispersed material is equal to or larger than 0.1 nm.Type: GrantFiled: October 9, 2009Date of Patent: January 14, 2014Assignee: Toyota Jidosha Kabushiki KaishaInventors: Junya Murai, Takuji Kita