Patents by Inventor Minjuan Zhang
Minjuan Zhang 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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Publication number: 20210325579Abstract: A multilayer thin film that reflects an omnidirectional structural color including a multilayer stack. The multilayer stack includes a reflector layer; a selective absorber layer extending over the reflector layer; an absorbing layer extending over the first layer; and a dielectric layer extending over the second layer. The multilayer thin film reflects a single narrow band of visible light when exposed to broadband electromagnetic radiation, the single narrow band of visible light having a center wavelength greater than 550 nm, and a visible full width at half maximum (FWHM) width of less than 200 nm. A color shift of the reflected single narrow band of visible light is less than 50 nm when the multilayer stack is exposed to broadband electromagnetic radiation and viewed from angles between 0 and 45 degrees relative to a direction normal to an outer surface of the multilayer thin film.Type: ApplicationFiled: July 1, 2021Publication date: October 21, 2021Applicants: Toyota Motor Engineering & Manufacturing North America, Inc., Toyota Jidosha Kabushiki KaishaInventors: Debasish Banerjee, Minjuan Zhang, Masahiko Ishii
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Publication number: 20210253980Abstract: Bioactive coatings that include a base and a protein associated with the base for actively promoting the removal of organic stains are provided. In aspects, bioactive coatings that are stabilized against inactivation by weathering are provided including a base associated with a chemically modified enzyme, and, optionally a first polyoxyethylene present in the base and independent of the enzyme. The coatings are optionally overlayered onto a substrate to form an active coating facilitating the removal of organic stains or organic material from food, insects, or the environment.Type: ApplicationFiled: April 19, 2021Publication date: August 19, 2021Applicants: Toyota Motor Engineering & Manufacturing North America, Inc., Toyota Motor Corporation, Regents of the University of MinnesotaInventors: Andreas Buthe, Ping Wang, Songtao Wu, Hongfei Jia, Masahiko Ishii, Minjuan Zhang
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Patent number: 11086053Abstract: An omnidirectional multilayer thin film is provided. The multilayer thin film includes a multilayer stack having a first layer of a first material and a second layer of a second material, the second layer extending across the first layer. The multilayer stack reflects a narrow band of electromagnetic radiation having a full width at half maximum (FWHM) of less than 300 nanometers (nm) and a color of less than 50 nm when the multilayer stack is exposed to broadband electromagnetic radiation and viewed from angles between 0 and 45 degrees. In some instances, the multilayer stack has a total thickness of less than 2 microns (?m). Preferably, the multilayer thin film has a total thickness of less than 1.5 ?m and more preferably less than 1.0 ?m.Type: GrantFiled: October 2, 2017Date of Patent: August 10, 2021Assignees: Toyota Motor Engineering & Manufacturing North America, Inc.Inventors: Debasish Banerjee, Minjuan Zhang, Masahiko Ishii
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Patent number: 11015149Abstract: Bioactive coatings that include a base and a protein associated with the base for actively promoting the removal of organic stains are provided. In aspects, bioactive coatings that are stabilized against inactivation by weathering are provided including a base associated with a chemically modified enzyme, and, optionally a first polyoxyethylene present in the base and independent of the enzyme. The coatings are optionally overlayered onto a substrate to form an active coating facilitating the removal of organic stains or organic material from food, insects, or the environment.Type: GrantFiled: November 13, 2017Date of Patent: May 25, 2021Assignees: Toyota Motor Corporation, Regents of the University of MinnesotaInventors: Andreas Buthe, Ping Wang, Songtao Wu, Hongfei Jia, Masahiko Ishii, Minjuan Zhang
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Patent number: 10988714Abstract: Bioactive coatings that include a base and a protein associated with the base for actively promoting the removal of organic stains are provided. In aspects, bioactive coatings that are stabilized against inactivation by weathering are provided including a base associated with a chemically modified enzyme, and, optionally a first polyoxyethylene present in the base and independent of the enzyme. The coatings are optionally overlayered onto a substrate to form an active coating facilitating the removal of organic stains or organic material from food, insects, or the environment.Type: GrantFiled: November 13, 2017Date of Patent: April 27, 2021Assignees: Regents of the University of Minnesota, Toyota Motor CorporationInventors: Andreas Buthe, Ping Wang, Songtao Wu, Hongfei Jia, Masahiko Ishii, Minjuan Zhang
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Patent number: 10883069Abstract: Bioactive coatings that include a base and a protein associated with the base for actively promoting the removal of organic stains are provided. In aspects, bioactive coatings that are stabilized against inactivation by weathering are provided including a base associated with a chemically modified enzyme, and, optionally a first polyoxyethylene present in the base and independent of the enzyme. The coatings are optionally overlayered onto a substrate to form an active coating facilitating the removal of organic stains or organic material from food, insects, or the environment.Type: GrantFiled: November 13, 2017Date of Patent: January 5, 2021Assignees: Toyota Motor Corporation, Regents of the University of MinnesotaInventors: Andreas Buthe, Ping Wang, Songtao Wu, Hongfei Jia, Masahiko Ishii, Minjuan Zhang
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Publication number: 20200392432Abstract: A substrate or coating is provided that includes a protease with enzymatic activity toward a component of a biological stain. Also provided is a process for facilitating the removal of a biological stain is provided wherein an inventive substrate or coating including a protease is capable of enzymatically degrading of one or more components of the biological stain to facilitate biological stain removal from the substrate or said coating.Type: ApplicationFiled: July 20, 2020Publication date: December 17, 2020Applicants: Toyota Motor Engineering & Manufacturing North America, Inc., Toyota Motor CorporationInventors: Songtao Wu, Hongfei Jia, Masahiko Ishii, Minjuan Zhang
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Publication number: 20200342098Abstract: Provided are methods and compositions for self-cleaning that include a lysozyme capable of decomposing a microbe, a substrate applied to a solid surface, and a linker moiety bound to an outer surface of said substrate and an active group of said digestive protein, said linker moiety between said lysozyme and said substrate and covalently linking said lysozyme to a surface of said substrate optionally by an amide bond.Type: ApplicationFiled: June 12, 2020Publication date: October 29, 2020Applicants: Toyota Motor Engineering & Manufacturing North America, Inc., Toyota Motor Corporation, The University of AkronInventors: Ping Wang, Minjuan Zhang, Hongfei Jia, Archana H. Trivedi, Masahiko Ishii
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Patent number: 10811160Abstract: A process for manufacturing a thermoelectric material having a plurality of grains and grain boundaries. The process includes determining a material composition to be investigated for the thermoelectric material and then determining a range of values of grain size and/or grain boundary barrier height obtainable for the material composition using current state of the art manufacturing techniques. Thereafter, a range of figure of merit values for the material composition is determined as a function of the range of values of grain size and/or grain boundary barrier height. And finally, a thermoelectric material having the determined material composition and an average grain size and grain boundary barrier height corresponding to the maximum range of figure of merit values is manufactured.Type: GrantFiled: May 27, 2011Date of Patent: October 20, 2020Assignee: TOYOTA MOTOR ENGINEERING & MANUFACTURING NORTH AMERICA, INC.Inventors: Debasish Banerjee, Minjuan Zhang, Takuji Kita
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Publication number: 20200308508Abstract: Bioactive coatings that include a base and a protein associated with the base for actively promoting the removal of organic stains are provided. In aspects, bioactive coatings that are stabilized against inactivation by weathering are provided including a base associated with a chemically modified enzyme, and, optionally a first polyoxyethylene present in the base and independent of the enzyme. The coatings are optionally overlayered onto a substrate to form an active coating facilitating the removal of organic stains or organic material from food, insects, or the environment.Type: ApplicationFiled: June 12, 2020Publication date: October 1, 2020Applicants: Toyota Motor Engineering & Manufacturing North America, Inc., Toyota Motor Corporation, Regents of the University of MinnesotaInventors: Andreas Buthe, Ping Wang, Songtao Wu, Hongfei Jia, Masahiko Ishii, Minjuan Zhang
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Publication number: 20200308443Abstract: Bioactive coatings that are stabilized against inactivation by weathering are provided including a base associated with a chemically modified enzyme capable of enzymatically degrading a component of an organic stain, optionally a lipase or a lysozyme, and optionally a first polyoxyethylene present in the base and independent of the enzyme. The coatings are optionally overlayered onto a substrate to form an active coating facilitating the removal of organic stains or bacterial organic material.Type: ApplicationFiled: June 16, 2020Publication date: October 1, 2020Inventors: Hongfei Jia, Ping Wang, Liting Zhang, Andreas Buthe, Xueyan Zhao, Songtao Wu, Masahiko Ishii, Minjuan Zhang
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Patent number: 10788608Abstract: An omnidirectional multilayer thin film is provided. The multilayer thin film includes a multilayer stack having a first layer of a first material and a second layer of a second material, the second layer extending across the first layer. The multilayer stack reflects a narrow band of electromagnetic radiation having a full width at half maximum (FWHM) of less than 300 nanometers (nm) and a color/hue shift of less than 30 degrees when the multilayer stack is exposed to broadband electromagnetic radiation and viewed from angles between 0 and 45 degrees. In some instances, the multilayer stack has a total thickness of less than 2 microns (?m). Preferably, the multilayer thin film has a total thickness of less than 1.5 ?m and more preferably less than 1.0 ?m.Type: GrantFiled: April 1, 2014Date of Patent: September 29, 2020Assignees: Toyota Jidosha Kabushiki Kaisha, Toyota Motor Engineering & Manufacturing North America, Inc.Inventors: Debasish Banerjee, Minjuan Zhang, Masahiko Ishii
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Patent number: 10781438Abstract: The present invention relates to compositions and processes in the field of self-cleaning system using digestive proteins. One composition includes a substrate, a digestive protein capable of decomposing a stain molecule, and a linker moiety bound to both said digestive protein and said substrate. The processes include binding a substrate to a surface and forming a linker moiety between a digestive protein and said substrate.Type: GrantFiled: October 23, 2017Date of Patent: September 22, 2020Assignees: Toyota Motor Engineering & Manufacturing North America, Inc., Toyota Motor CorporationInventors: Ping Wang, Minjuan Zhang, Hongfei Jia, Archana H. Trivedi, Masahiko Ishii
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Patent number: 10767141Abstract: A substrate or coating is provided that includes a protease with enzymatic activity toward a component of a biological stain. Also provided is a process for facilitating the removal of a biological stain is provided wherein an inventive substrate or coating including a protease is capable of enzymatically degrading of one or more components of the biological stain to facilitate biological stain removal from the substrate or said coating.Type: GrantFiled: June 27, 2016Date of Patent: September 8, 2020Assignees: Toyota Motor Engineering & Manufacturing North America, Inc., Toyota Motor CorporationInventors: Songtao Wu, Hongfei Jia, Masahiko Ishii, Minjuan Zhang
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Patent number: 10690823Abstract: A high-chroma omnidirectional structural color multilayer structure is provided. The structure includes a multilayer stack that has a core layer, a dielectric layer extending across the core layer, and an absorber layer extending across the dielectric layer. An interface is present between the dielectric layer and the absorber layer and a near-zero electric field for a first incident electromagnetic wavelength is present at this interface. In addition, a large electric field at a second incident electromagnetic wavelength is present at the interface. As such, the interface allows for high transmission of the first incident electromagnetic wavelength and high absorption of the second incident electromagnetic wavelength such that a narrow band of reflected light is produced by the multilayer stack.Type: GrantFiled: June 8, 2013Date of Patent: June 23, 2020Assignees: TOYOTA MOTOR CORPORATION, TOYOTA MOTOR ENGINEERING & MANUFACTURING NORTH AMERICA, INC.Inventors: Debasish Banerjee, Minjuan Zhang, Masahiko Ishii
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Patent number: 10672966Abstract: A process for manufacturing a thermoelectric material having a plurality of grains and grain boundaries. The process includes determining a material composition to be investigated for the thermoelectric material and then determining a range of values of grain size and/or grain boundary barrier height obtainable for the material composition using current state of the art manufacturing techniques. Thereafter, a range of figure of merit values for the material composition is determined as a function of the range of values of grain size and/or grain boundary barrier height. And finally, a thermoelectric material having the determined material composition and an average grain size and grain boundary barrier height corresponding to the maximum range of figure of merit values is manufactured.Type: GrantFiled: June 13, 2014Date of Patent: June 2, 2020Assignees: TOYOTA MOTOR ENGINEERING & MANUFACTURING NORTH AMERICA, INC., TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Debasish Banerjee, Michael Paul Rowe, Li Qin Zhou, Minjuan Zhang, Takuji Kita
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Publication number: 20200109311Abstract: Bioactive coatings that are stabilized against inactivation by weathering are provided including a base including an enzyme associated therein, and a first polyoxyethylene present in the base and independent of the enzyme. The coatings are optionally overlayered onto a substrate to form an active coating facilitating the removal of organic stains or organic material from food, insects, or the environment.Type: ApplicationFiled: December 23, 2019Publication date: April 9, 2020Inventors: Hongfei Jia, Ping Wang, Liting Zhang, Andreas Buthe, Xueyan Zhao, Songtao Wu, Masahiko Ishii, Minjuan Zhang
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Publication number: 20200088922Abstract: A high-chroma omnidirectional structural color multilayer structure is provided. The structure includes a multilayer stack that has a core layer, a dielectric layer extending across the core layer, and an absorber layer extending across the dielectric layer. An interface is present between the dielectric layer and the absorber layer and a near-zero electric field for a first incident electromagnetic wavelength is present at this interface. In addition, a large electric field at a second incident electromagnetic wavelength is present at the interface. As such, the interface allows for high transmission of the first incident electromagnetic wavelength and high absorption of the second incident electromagnetic wavelength such that a narrow band of reflected light is produced by the multilayer stack.Type: ApplicationFiled: November 22, 2019Publication date: March 19, 2020Applicants: Toyota Motor Engineering & Manufacturing North America, Inc., Toyota Motor CorporationInventors: Debasish Banerjee, Minjuan Zhang, Masahiko Ishii
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Patent number: 10563094Abstract: Bioactive coatings that are stabilized against inactivation by weathering are provided including a base associated with a chemically modified enzyme, and, optionally a first polyoxyethylene present in the base and independent of the enzyme. The coatings are optionally overlayered onto a substrate to form an active coating facilitating the removal of organic stains or organic material from food, insects, or the environment.Type: GrantFiled: July 29, 2015Date of Patent: February 18, 2020Assignees: Toyota Motor Engineering & Manufacturing North America, Inc., Toyota Motor Corporation, Regents of the University of MinnesotaInventors: Hongfei Jia, Ping Wang, Liting Zhang, Andreas Buthe, Xueyan Zhao, Songtao Wu, Masahiko Ishii, Minjuan Zhang
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Publication number: 20190153422Abstract: Provided are methods and compositions for self-cleaning that include a digestive protein capable of decomposing stain forming molecules, a substrate applied to a solid surface, and a linker moiety bound to an outer surface of said substrate and an active group of said digestive protein, said linker moiety between said protein and said substrate and covalently linking said protein to a surface of said substrate by an amide bond, the linker moiety between a free amine of said protein and said outer surface of said substrate wherein the digestive protein forms a layer on a surface of said substrate such that the digestive protein is surface exposed for reaction with a stain.Type: ApplicationFiled: January 23, 2019Publication date: May 23, 2019Inventors: Ping Wang, Minjuan Zhang, Hongfei Jia, Archana H. Trivedi, Masahiko Ishii