Patents by Inventor Stefan Christian Bernhardt Mannsfeld
Stefan Christian Bernhardt Mannsfeld 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: 10545058Abstract: Sensors, sensing arrangements and devices, and related methods are provided. In accordance with an example embodiment, an impedance-based sensor includes a flexible dielectric material and generates an output based on pressure applied to the dielectric material and a resulting compression thereof. In certain embodiments, the dielectric material includes a plurality of regions separated by gaps and configured to elastically deform and recover in response to applied pressure.Type: GrantFiled: March 7, 2016Date of Patent: January 28, 2020Assignee: The Board of Trustees of the Leland Stanford Junior UniversityInventors: Zhenan Bao, Stefan Christian Bernhardt Mannsfeld, Jason Locklin, Chee-Keong Tee
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Patent number: 9863057Abstract: A coated substrate is formed with aligned objects such as small molecules, macromolecules and nanoscale particulates, such as inorganic, organic or inorganic/organic hybrid materials. In accordance with one or more embodiments, an apparatus or method involves an applicator having at least one surface patterned with protruded or indented features, and a coated substrate including a solution-based layer of objects having features and morphology attributes arranged as a function of the protruded or indented features.Type: GrantFiled: April 28, 2014Date of Patent: January 9, 2018Assignee: The Board of Trustees of the Leland Stanford Junior UniversityInventors: Zhenan Bao, Ying Diao, Stefan Christian Bernhardt Mannsfeld, Chee-Keong Tee, Hector A. Becerril-Garcia, Yan Zhou
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Patent number: 9677952Abstract: Input devices are provided. In accordance with an example embodiment, an input device includes an interface layer that flexes in response to pressure, a plurality of sense electrodes, a dielectric between the sense electrodes and the interface layer, and interconnecting circuitry. The dielectric compresses or expands in response to movement of the interface layer, and exhibits dielectric characteristics that vary based upon a state of compression of the dielectric. The interconnecting circuitry is to the sense electrodes and provides an output indicative of both the position of each sense electrode and an electric characteristic at each sense electrode that provides an indication of pressure applied to the dielectric adjacent the respective sense electrodes.Type: GrantFiled: August 17, 2015Date of Patent: June 13, 2017Assignee: The Board of Trustees of the Leland Stanford Junior UniversityInventors: Zhenan Bao, Chee-Keong Tee, Stefan Christian Bernhardt Mannsfeld, Justin P. Opatkiewicz
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Patent number: 9520563Abstract: Organic semiconductor material can be patterned from a solution onto a substrate by selectively wetting the substrate with the solution while applying a mechanical disturbance (such as stirring the solution while the substrate is immersed, or wiping the solution on the substrate). The organic semiconductor material can then be precipitated out of the solution, for example to bridge gaps between source and drain electrodes to form transistor devices. In some embodiments, the solution containing the organic semiconductor material can be mixed in an immiscible host liquid. This can allow the use of higher concentration solutions while also using less of the organic semiconductor material.Type: GrantFiled: November 20, 2008Date of Patent: December 13, 2016Assignee: The Board of Trustees of the Leland Stanford Junior UniversityInventors: Stefan Christian Bernhardt Mannsfeld, Armon Sharei, Zhenan Bao
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Publication number: 20160187209Abstract: Sensors, sensing arrangements and devices, and related methods are provided. In accordance with an example embodiment, an impedance-based sensor includes a flexible dielectric material and generates an output based on pressure applied to the dielectric material and a resulting compression thereof. In certain embodiments, the dielectric material includes a plurality of regions separated by gaps and configured to elastically deform and recover in response to applied pressure.Type: ApplicationFiled: March 7, 2016Publication date: June 30, 2016Inventors: Zhenan Bao, Stefan Christian Bernhardt Mannsfeld, Jason Locklin, Chee-Keong Tee
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Patent number: 9281415Abstract: Sensors, sensing arrangements and devices, and related methods are provided. In accordance with an example embodiment, an impedance-based sensor includes a flexible dielectric material and generates an output based on pressure applied to the dielectric material and a resulting compression thereof. In certain embodiments, the dielectric material includes a plurality of regions separated by gaps and configured to elastically deform and recover in response to applied pressure.Type: GrantFiled: September 9, 2011Date of Patent: March 8, 2016Assignee: The Board of Trustees of the Leland Stanford Junior UniversityInventors: Zhenan Bao, Stefan Christian Bernhardt Mannsfeld, Jason Locklin, Benjamin Chee-Keong Tee
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Publication number: 20160041652Abstract: Input devices are provided. In accordance with an example embodiment, an input device includes an interface layer that flexes in response to pressure, a plurality of sense electrodes, a dielectric between the sense electrodes and the interface layer, and interconnecting circuitry. The dielectric compresses or expands in response to movement of the interface layer, and exhibits dielectric characteristics that vary based upon a state of compression of the dielectric. The interconnecting circuitry is to the sense electrodes and provides an output indicative of both the position of each sense electrode and an electric characteristic at each sense electrode that provides an indication of pressure applied to the dielectric adjacent the respective sense electrodes.Type: ApplicationFiled: August 17, 2015Publication date: February 11, 2016Inventors: Zhenan Bao, Chee-Keong Tee, Stefan Christian Bernhardt Mannsfeld, Justin P. Opatkiewicz
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Patent number: 9112058Abstract: Input devices are provided. In accordance with an example embodiment, an input device includes an interface layer that flexes in response to pressure, a plurality of sense electrodes, a dielectric between the sense electrodes and the interface layer, and interconnecting circuitry. The dielectric compresses or expands in response to movement of the interface layer, and exhibits dielectric characteristics that vary based upon a state of compression of the dielectric. The interconnecting circuitry is coupled to the sense electrodes and provides an output indicative of both the position of each sense electrode and an electric characteristic at each sense electrode that provides an indication of pressure applied to the dielectric adjacent the respective sense electrodes.Type: GrantFiled: September 9, 2011Date of Patent: August 18, 2015Assignee: The Board of Trustees of the Leland Stanford Junior UniversityInventors: Zhenan Bao, Benjamin Chee-Keong Tee, Stefan Christian Bernhardt Mannsfeld, Justin P. Opatkiewicz
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Publication number: 20140318440Abstract: A coated substrate is formed with aligned objects such as small molecules, macromolecules and nanoscale particulates, such as inorganic, organic or inorganic/organic hybrid materials. In accordance with one or more embodiments, an apparatus or method involves an applicator having at least one surface patterned with protruded or indented features, and a coated substrate including a solution-based layer of objects having features and morphology attributes arranged as a function of the protruded or indented features.Type: ApplicationFiled: April 28, 2014Publication date: October 30, 2014Inventors: Zhenan Bao, Ying Diao, Stefan Christian Bernhardt Mannsfeld, Chee-Keong Tee, Hector A. Becerril-Garcia, Yan Zhou
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Publication number: 20120062245Abstract: Sensors, sensing arrangements and devices, and related methods are provided. In accordance with an example embodiment, an impedance-based sensor includes a flexible dielectric material and generates an output based on pressure applied to the dielectric material and a resulting compression thereof. In certain embodiments, the dielectric material includes a plurality of regions separated by gaps and configured to elastically deform and recover in response to applied pressure.Type: ApplicationFiled: September 9, 2011Publication date: March 15, 2012Inventors: Zhenan Bao, Stefan Christian Bernhardt Mannsfeld, Jason Locklin, Benjamin Chee-Keong Tee
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Patent number: 8119445Abstract: Organic semiconductor devices exhibit desirable mobility characteristics. In connection with various example embodiments, a monolayer of methyl-terminated molecules exhibits density characteristics that are sufficient to promote two-dimensional growth of organic semiconductor material formed thereupon. In some applications, the methyl-terminated molecules are sufficiently dense to dominate inter-layer interactions between layers of the organic semiconductor material.Type: GrantFiled: May 27, 2008Date of Patent: February 21, 2012Assignee: The Board of Trustees of the Leland Stanford Junior UniversityInventors: Ajay A. Virkar, Stefan Christian Bernhardt Mannsfeld, Zhenan Bao
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Publication number: 20100308309Abstract: Organic semiconductor material can be patterned from a solution onto a substrate by selectively wetting the substrate with the solution while applying a mechanical disturbance (such as stirring the solution while the substrate is immersed, or wiping the solution on the substrate). The organic semiconductor material can then be precipitated out of the solution, for example to bridge gaps between source and drain electrodes to form transistor devices. In some embodiments, the solution containing the organic semiconductor material can be mixed in an immiscible host liquid. This can allow the use of higher concentration solutions while also using less of the organic semiconductor material.Type: ApplicationFiled: November 20, 2008Publication date: December 9, 2010Inventors: Stefan Christian Bernhardt Mannsfeld, Armon Sharei, Zhenan Bao
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Publication number: 20090294760Abstract: Organic semiconductor devices exhibit desirable mobility characteristics. In connection with various example embodiments, a monolayer of methyl-terminated molecules exhibits density characteristics that are sufficient to promote two-dimensional growth of organic semiconductor material formed thereupon. In some applications, the methyl-terminated molecules are sufficiently dense to dominate inter-layer interactions between layers of the organic semiconductor material.Type: ApplicationFiled: May 27, 2008Publication date: December 3, 2009Inventors: Ajay A. Virkar, Stefan Christian Bernhardt Mannsfeld, Zhenan Bao