Patents by Inventor Adarsh Sandhu
Adarsh Sandhu 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: 10002483Abstract: A method of visualizing a latent image includes: preparing a latent image composed of a plurality of paramagnetic seeds immobilized on a base in the form of an image, and a dispersion liquid of paramagnetic colloidal particles; immersing the latent image in the dispersion liquid of paramagnetic colloidal particles; and applying a magnetic field to the latent image and the dispersion liquid of paramagnetic colloidal particles.Type: GrantFiled: February 8, 2012Date of Patent: June 19, 2018Assignee: EMPIRE TECHNOLOGY DEVELOPMENT LLCInventor: Adarsh Sandhu
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Patent number: 9607725Abstract: Provided are a graphene structure and a method for producing the same in which graphene can be patterned with high precision, and thereby microfabrication of electronic device elements and electronic devices using graphene is possible and the manufacturing cost can be notably reduced. A resist film is precisely patterned on a substrate, hydrophilized films are formed in openings of the resist film, and then GO is selectively fixed on the portions of the hydrophilized films by a chemical bond utilizing the hydrophilicity of the GO, and the GO is reduced to obtain a graphene structure in which graphene is selectively fixed to only the portions of the hydrophilized films. Thus, the graphene structure is constituted by disposing graphene on a substrate and forming a bond, by hydrophilization treatment, between the hydrophilized portion of the substrate and the graphene and/or between the unhydrophobized portion of the substrate and the graphene.Type: GrantFiled: December 21, 2009Date of Patent: March 28, 2017Assignee: EMPIRE TECHNOLOGY DEVELOPMENT LLCInventor: Adarsh Sandhu
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Publication number: 20140315046Abstract: Provided are a microbial power generation device, an electrode for the microbial power generation device, preparing methods of the same, an electric power producing method using microbes and a selective culture method of the microbes used for the electric power producing method capable of improving electric power production capacity and of suppressing power generation cost. In a microbial power generation device (1), microbes (reducing microbes) that reduce graphene oxide are enriched among microbes inhabiting wastewater, slurry, activated sludge and the like. Therefore, the graphene oxide is reduced by the reducing microbes, so the graphene is produced. Electrons produced by the microbes can be transmitted to a negative electrode (14) via the produced graphene. As a result, the electric power production capacity can be improved and the power generation can be performed at a low cost.Type: ApplicationFiled: September 18, 2012Publication date: October 23, 2014Applicant: National University Corporation TOYOHASHI UNIVERSITY OF TECHNOLOGYInventors: Naoko Yoshida, Akira Hiraishi, Adarsh Sandhu, Seiji Iwasa, Hiroshi Okada, Ryugo Tero, Yuji Nagao
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Patent number: 8631510Abstract: An object of the present invention is to provide a magnetic sensor simply configured so as to magnetically measure not only conductive materials but also nonconductive materials over a wide temperature range and which offers high performance and high reliability, as well as a scanning microscope that uses the magnetic sensor. A scanning microscope according to the present invention includes a magnetic sensor with a magnetic sensing element provided at a free end of a cantilever-like flexible member and a strain gauge installed on the flexible member, driving means for driving the flexible member or a measurement sample, and control means for controlling driving provided by the driving means based on an output signal from the strain gauge.Type: GrantFiled: December 8, 2011Date of Patent: January 14, 2014Assignee: Empire Technology Development LLCInventor: Adarsh Sandhu
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Patent number: 8623663Abstract: A new reaction apparatus including a capillary having an inner surface to which a probe molecule that specifically binds to an analyte is immobilized, allowing a short throughput time for completing the binding reaction, and achieving a highly efficient reaction using a small amount of a sample and a process of the reaction are provided. The reaction apparatus includes a capillary having an inner surface to which a probe molecule that specifically binds to an analyte is immobilized; a columnar magnetic body that is disposed in a fluid containing the analyte in the state that the fluid is placed in the capillary; end-fixing means for fixing one end of the columnar magnetic body in the capillary by a DC magnetic field; and end-moving means for moving the other end of the columnar magnetic body by an AC magnetic field so as to transfer the fluid.Type: GrantFiled: July 31, 2008Date of Patent: January 7, 2014Assignee: Empire Technology Development LLCInventor: Adarsh Sandhu
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Patent number: 8449180Abstract: This invention is to provide a temperature sensor which can measure a precise temperature of a minute region, which can measure a temperature in a wide range from a low temperature to a high temperature, and which has a simple structure. The temperature sensor comprises a two-dimensional electron gas. A resistance of the two-dimensional electron gas is used to measure a temperature. The two-dimensional electron gas may have a heterostructure selected from the group consisting of an AlGaN/GaN system, an AlGaAs/GaAs system, an InAs/GaAs system, an InAs/GaSb/AlSb system, a SiGe/Si system, a SiC/Si system, a CdTe/HgTe/CdTe system, an InGaAs/InAlAs/InP system, and nanocrystalline silicon.Type: GrantFiled: January 19, 2007Date of Patent: May 28, 2013Inventors: Adarsh Sandhu, Takuya Yamamura, Makoto Taoda, Zaki Primadani
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Patent number: 8377708Abstract: A new reaction apparatus including a capillary having an inner surface to which a probe molecule that specifically binds to an analyte is immobilized and achieving a highly efficient reaction using a small amount of a sample and a process of the reaction are provided. The reaction apparatus includes a capillary having an inner surface to which a probe molecule that specifically binds to an analyte is immobilized; a passage allowing a fluid discharged from one end of the capillary to flow to the other end of the capillary; a columnar magnetic body that is disposed in a fluid containing the analyte in the capillary and/or the passage in the state that the fluid fed in the capillary can circulate via the passage; end-fixing means for fixing one end of the columnar magnetic body in the capillary and/or the passage by a DC magnetic field; and end-moving means for moving the other end of the columnar magnetic body by an AC magnetic field such that the fluid circulates via the passage.Type: GrantFiled: July 31, 2008Date of Patent: February 19, 2013Assignee: Empire Technology Development LLCInventor: Adarsh Sandhu
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Publication number: 20120251392Abstract: Provided is a biosensor using magnetic microparticles whereby a biomaterial can be detected at a high sensitivity. The biosensor using magnetic microparticles is provided with a light source (10), a magnetic field generator (20), a light receiver (30) and a detector (40). The light source (10) irradiates a dispersion (1) containing the magnetic microparticles, to which the biomaterial to be detected can bind, with light of a definite wavelength. The magnetic field generator (20) applies to the dispersion a magnetic field capable of changing at least in two directions. The light receiver (30) receives transmitting light from the dispersion (1). The detector (40) detects the presence or absence of the target biomaterial based on the magnitude of a change in the quantity of the transmitting light, which changes in response to a change in the direction of the magnetic field applied by the magnetic field generator (20), received by the light receiver (30).Type: ApplicationFiled: October 18, 2010Publication date: October 4, 2012Applicant: TOKYO INSTITUTE OF TECHNOLOGYInventor: Adarsh Sandhu
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Publication number: 20120141746Abstract: A method of visualizing a latent image includes: preparing a latent image composed of a plurality of paramagnetic seeds immobilized on a base in the form of an image, and a dispersion liquid of paramagnetic colloidal particles; immersing the latent image in the dispersion liquid of paramagnetic colloidal particles; and applying a magnetic field to the latent image and the dispersion liquid of paramagnetic colloidal particles.Type: ApplicationFiled: February 8, 2012Publication date: June 7, 2012Inventor: Adarsh Sandhu
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Publication number: 20120079636Abstract: An object of the present invention is to provide a magnetic sensor simply configured so as to magnetically measure not only conductive materials but also nonconductive materials over a wide temperature range and which offers high performance and high reliability, as well as a scanning microscope that uses the magnetic sensor. A scanning microscope according to the present invention includes a magnetic sensor with a magnetic sensing element provided at a free end of a cantilever-like flexible member and a strain gauge installed on the flexible member, driving means for driving the flexible member or a measurement sample, and control means for controlling driving provided by the driving means based on an output signal from the strain gauge.Type: ApplicationFiled: December 8, 2011Publication date: March 29, 2012Inventor: Adarsh Sandhu
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Patent number: 8137770Abstract: A method of visualizing a latent image includes: preparing a latent image composed of a plurality of paramagnetic seeds immobilized on a base in the form of an image, and a dispersion liquid of paramagnetic colloidal particles; immersing the latent image in the dispersion liquid of paramagnetic colloidal particles; and applying a magnetic field to the latent image and the dispersion liquid of paramagnetic colloidal particles.Type: GrantFiled: November 6, 2009Date of Patent: March 20, 2012Assignee: Empire Technology Development LLCInventor: Adarsh Sandhu
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Patent number: 8104093Abstract: A magnetic sensor simply is configured so as to magnetically measure not only conductive materials but also nonconductive materials over a wide temperature range and which offers high performance and high reliability, as well as a scanning microscope that uses the magnetic sensor. A scanning microscope according to the present invention includes a magnetic sensor with a magnetic sensing element provided at a free end of a cantilever-like flexible member and a strain gauge installed on the flexible member, driving means for driving the flexible member or a measurement sample, and control means for controlling driving provided by the driving means based on an output signal from the strain gauge.Type: GrantFiled: March 28, 2008Date of Patent: January 24, 2012Assignee: Empire Technology Development LLCInventor: Adarsh Sandhu
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Publication number: 20110304326Abstract: A magnetic field sensor which has a simple configuration and is capable of detecting a magnetic field with high sensitivity, including a vessel containing a dispersion in which magnetic particles are dispersed, a light source which irradiates the vessel with light, and light intensity measurement means arranged on an opposite side of the vessel from the light source for measuring the intensity of transmitted light having passed through the vessel, as needed.Type: ApplicationFiled: June 15, 2011Publication date: December 15, 2011Inventor: Adarsh Sandhu
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Publication number: 20110143101Abstract: Provided are a graphene structure and a method for producing the same in which graphene can be patterned with high precision, and thereby microfabrication of electronic device elements and electronic devices using graphene is possible and the manufacturing cost can be notably reduced. A resist film is precisely patterned on a substrate, hydrophilized films are formed in openings of the resist film, and then GO is selectively fixed on the portions of the hydrophilized films by a chemical bond utilizing the hydrophilicity of the GO, and the GO is reduced to obtain a graphene structure in which graphene is selectively fixed to only the portions of the hydrophilized films. Thus, the graphene structure is constituted by disposing graphene on a substrate and forming a bond, by hydrophilization treatment, between the hydrophilized portion of the substrate and the graphene and/or between the unhydrophobized portion of the substrate and the graphene.Type: ApplicationFiled: December 21, 2009Publication date: June 16, 2011Inventor: Adarsh Sandhu
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Publication number: 20110076777Abstract: A new reaction apparatus including a capillary having an inner surface to which a probe molecule that specifically binds to an analyte is immobilized and achieving a highly efficient reaction using a small amount of a sample and a process of the reaction are provided. The reaction apparatus includes a capillary having an inner surface to which a probe molecule that specifically binds to an analyte is immobilized; a passage allowing a fluid discharged from one end of the capillary to flow to the other end of the capillary; a columnar magnetic body that is disposed in a fluid containing the analyte in the capillary and/or the passage in the state that the fluid fed in the capillary can circulate via the passage; end-fixing means for fixing one end of the columnar magnetic body in the capillary and/or the passage by a DC magnetic field; and end-moving means for moving the other end of the columnar magnetic body by an AC magnetic field such that the fluid circulates via the passage.Type: ApplicationFiled: July 31, 2008Publication date: March 31, 2011Inventor: Adarsh Sandhu
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Publication number: 20100308816Abstract: Provided is a highly sensitive sensor system that can improve the S/N ratio by use of an electronic circuit without complicating the sensor body or degrading temporal resolution. A broad spectrum sensor element outputs an electric signal corresponding to a detected physical quantity, the sensor driven by multiplying a carrier signal by m-sequence code. The spread spectrum signal, after phase adjustment, is used to demodulate the sensor output signal, which corresponds to the broad spread spectrum of the physical quantity. The electrical noise generated in the sensor is a broad spread spectrum and is suppressed by low-pass filtering so as to improve the S/N ratio.Type: ApplicationFiled: October 29, 2008Publication date: December 9, 2010Applicant: Tokyo Institute of TechnologyInventors: Tomoaki Ueda, Masanori Abe, Takashi Nakagawa, Masaru Tada, Tetsuya Mizumoto, Hiroshi Handa, Adarsh Sandhu, Kiyomichi Araki
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Publication number: 20100304054Abstract: A method of visualizing a latent image includes: preparing a latent image composed of a plurality of paramagnetic seeds immobilized on a base in the form of an image, and a dispersion liquid of paramagnetic colloidal particles; immersing the latent image in the dispersion liquid of paramagnetic colloidal particles; and applying a magnetic field to the latent image and the dispersion liquid of paramagnetic colloidal particles.Type: ApplicationFiled: November 6, 2009Publication date: December 2, 2010Inventor: Adarsh SANDHU
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Publication number: 20100264913Abstract: A magnetic field sensor which has a simple configuration and is capable of detecting a magnetic field with high sensitivity, including a vessel containing a dispersion in which magnetic particles are dispersed, a light source which irradiates the vessel with light, and light intensity measurement means arranged on an opposite side of the vessel from the light source for measuring the intensity of transmitted light having passed through the vessel, as needed.Type: ApplicationFiled: August 20, 2008Publication date: October 21, 2010Inventor: Adarsh Sandhu
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Publication number: 20100226409Abstract: This invention is to provide a temperature sensor which can measure a precise temperature of a minute region, which can measure a temperature in a wide range from a low temperature to a high temperature, and which has a simple structure. The temperature sensor comprises a two-dimensional electron gas. A resistance of the two-dimensional electron gas is used to measure a temperature. The two-dimensional electron gas may have a heterostructure selected from the group consisting of an AlGaN/GaN system, an AlGaAs/GaAs system, an InAs/GaAs system, an InAs/GaSb/AlSb system, a SiGe/Si system, a SiC/Si system, a CdTe/HgTe/CdTe system, an InGaAs/InAlAs/InP system, and nanocrystalline silicon.Type: ApplicationFiled: January 19, 2007Publication date: September 9, 2010Inventors: Adarsh Sandhu, Takuya Yamamura, Makoto Taoda, Zaki Primadani
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Publication number: 20100184238Abstract: A new reaction apparatus including a capillary having an inner surface to which a probe molecule that specifically binds to an analyte is immobilized, allowing a short throughput time for completing the binding reaction, and achieving a highly efficient reaction using a small amount of a sample and a process of the reaction are provided. The reaction apparatus includes a capillary having an inner surface to which a probe molecule that specifically binds to an analyte is immobilized; a columnar magnetic body that is disposed in a fluid containing the analyte in the state that the fluid is placed in the capillary; end-fixing means for fixing one end of the columnar magnetic body in the capillary by a DC magnetic field; and end-moving means for moving the other end of the columnar magnetic body by an AC magnetic field so as to transfer the fluid.Type: ApplicationFiled: July 31, 2008Publication date: July 22, 2010Inventor: Adarsh Sandhu