Patents by Inventor Guang Zhu
Guang Zhu 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: 9790928Abstract: A triboelectric power system includes a triboelectric generator, a rechargeable energy storage unit and a power management circuit. The rechargeable energy storage unit is associated to the triboelectric generator. The power management circuit is configured to receive an input current from the triboelectric generator and to deliver an output current corresponding to the input current to the rechargeable battery so that the output current has a current direction and a voltage that will recharge the rechargeable battery.Type: GrantFiled: July 30, 2014Date of Patent: October 17, 2017Assignee: Georgia Tech Research CorporationInventors: Zhong Lin Wang, Sihong Wang, Guang Zhu, Yusheng Zhou, Jun Chen, Peng Bai
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Patent number: 9770705Abstract: Disclosed are catalysts comprised of platinum and gold. The catalysts are generally useful for the selective oxidation of compositions comprised of a primary alcohol group and at least one secondary alcohol group wherein at least the primary alcohol group is converted to a carboxyl group. More particularly, the catalysts are supported catalysts including particles comprising gold and particles comprising platinum, wherein the molar ratio of platinum to gold is in the range of about 100:1 to about 1:4, the platinum is essentially present as Pt(0) and the platinum-containing particles are of a size in the range of about 2 to about 50 nm. Also disclosed are methods for the oxidative chemocatalytic conversion of carbohydrates to carboxylic acids or derivatives thereof. Additionally, methods are disclosed for the selective oxidation of glucose to glucaric acid or derivatives thereof using catalysts comprising platinum and gold. Further, methods are disclosed for the production of such catalysts.Type: GrantFiled: December 13, 2010Date of Patent: September 26, 2017Assignee: Rennovia Inc.Inventors: Vincent J. Murphy, James Shoemaker, Guang Zhu, Raymond Archer, George Frederick Salem, Eric L. Dias
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Publication number: 20170197930Abstract: The present disclosure provides processes for the production of 2-5-furandicarboxylic acid (FDCA) and intermediates thereof by the chemocatalytic conversion of a furanic oxidation substrate. The present disclosure further provides processes for preparing derivatives of FDCA and FDCA-based polymers. In addition, the present disclosure provides crystalline preparations of FDCA, as well as processes for making the same.Type: ApplicationFiled: January 12, 2017Publication date: July 13, 2017Inventors: Valery Sokolovskii, Vincent J. Murphy, Thomas R. Boussie, Gary M. Diamond, Eric L. Dias, Guang Zhu, James M. Longmire, Stanley Herrmann, Staffan Torssell, Mayya Lavrenko
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Publication number: 20170187307Abstract: A triboelectric generator includes a first contact charging member and a second contact charging member. The first contact charging member includes a first contact layer and a conductive electrode layer. The first contact layer includes a material that has a triboelectric series rating indicating a propensity to gain electrons due to a contacting event. The conductive electrode layer is disposed along the back side of the contact layer. The second contact charging member is spaced apart from and disposed oppositely from the first contact charging member. It includes an electrically conductive material layer that has a triboelectric series rating indicating a propensity to lose electrons when contacted by the first contact layer during the contacting event. The electrically conductive material acts as an electrode. A mechanism maintains a space between the first contact charging member and the second contact charging member except when a force is applied thereto.Type: ApplicationFiled: March 13, 2017Publication date: June 29, 2017Inventors: Zhong Lin Wang, Sihong Wang, Long Lin, Guang Zhu, Zong-Hong Lin
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Patent number: 9682368Abstract: Shaped porous carbon products and processes for preparing these products are provided. The shaped porous carbon products can be used, for example, as catalyst supports and adsorbents. Catalyst compositions including these shaped porous carbon products, processes of preparing the catalyst compositions, and various processes of using the shaped porous carbon products and catalyst compositions are also provided.Type: GrantFiled: April 29, 2015Date of Patent: June 20, 2017Assignee: Rennovia Inc.Inventors: Eric L. Dias, Alfred Hagemeyer, Hong X. Jiang, James Longmire, James A. W. Shoemaker, Valery Sokolovskii, Guang Zhu, Vincent J. Murphy, Gary M. Diamond
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Publication number: 20170165641Abstract: Shaped porous carbon products and processes for preparing these products are provided. The shaped porous carbon products can be used, for example, as catalyst supports and adsorbents. Catalyst compositions including these shaped porous carbon products, processes of preparing the catalyst compositions, and various processes of using the shaped porous carbon products and catalyst compositions are also provided.Type: ApplicationFiled: February 24, 2017Publication date: June 15, 2017Applicant: Rennovia Inc.Inventors: Eric L. Dias, Alfred Hagemeyer, Hong X. Jiang, James Longmire, James A.W. Shoemaker, Valery Sokolovskii, Guang Zhu, Vincent J. Murphy, Gary M. Diamond
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Publication number: 20170160817Abstract: A keyboard for converting keystrokes into electrical signals is disclosed. The keyboard includes a plurality of keys. At least one of the keys includes two electrodes and a member that generates triboelectric charges upon skin contact. The member is adjacent to one of the electrodes to affect a flow of electrons between the two electrodes when a distance between the member and the skin varies.Type: ApplicationFiled: December 8, 2015Publication date: June 8, 2017Inventors: Zhong Lin Wang, Guang Zhu, Jun Chen
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Publication number: 20170125287Abstract: A method for forming a semiconductor device includes forming a first insulator layer on a first substrate of a first semiconductor material, implanting hydrogen ions into the first substrate to form a hydrogen-implanted layer, forming a recessed region in the first substrate, forming a second semiconductor material in the recessed region, and forming a second insulator layer over the second semiconductor material and the first substrate. The method also includes providing a second substrate with a third insulator layer disposed thereon, bonding the first substrate with the second substrate, and removing a lower portion of the first substrate at the hydrogen-implanted layer. A portion of the first substrate is removed to expose a surface of the second semiconductor material in the recessed region, thereby providing a layer of the first semiconductor material adjacent to a layer of the second semiconductor material on the second insulator layer.Type: ApplicationFiled: September 28, 2016Publication date: May 4, 2017Inventors: Ji Guang ZHU, Hai Ting LI
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Publication number: 20170120219Abstract: Shaped porous carbon products and processes for preparing these products are provided. The shaped porous carbon products can be used, for example, as catalyst supports and adsorbents. Catalyst compositions including these shaped porous carbon products, processes of preparing the catalyst compositions, and various processes of using the shaped porous carbon products and catalyst compositions are also provided.Type: ApplicationFiled: April 18, 2016Publication date: May 4, 2017Applicant: Rennovia Inc.Inventors: Gary M. Diamond, Guang Zhu, Vincent J. Murphy, Eric Dias
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Publication number: 20170120223Abstract: The present invention provides a porous metal-containing carbon-based material that is stable at high temperatures under aqueous conditions. The porous metal-containing carbon-based materials are particularly useful in catalytic applications. Also provided, are methods for making and using porous shaped metal-carbon products prepared from these materials.Type: ApplicationFiled: April 18, 2016Publication date: May 4, 2017Applicant: Rennovia Inc.Inventors: Valery Sokolovskii, Alfred Hagemeyer, James A.W. Shoemaker, Elif Ispir Gürbüz, Guang Zhu, Eric L. Dias
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Publication number: 20170104084Abstract: The present disclosure provides a method for forming a transistor, including: forming a base structure, containing a first gate structure, an active layer covering the first gate structure, and an insulating structure in the active layer; forming a second gate structure on the active layer; forming a source-drain region, including a source region and a drain region in the active layer each on a different side of the second gate structure; and forming a first interlayer dielectric layer covering the base structure and the second gate structure. The method also includes: forming a first contact hole that exposes the first gate structure by etching the first interlayer dielectric layer and the insulating structure; and forming a second contact hole that exposes the second gate structure and a third contact hole that exposes the drain region by etching the first interlayer dielectric layer.Type: ApplicationFiled: September 29, 2016Publication date: April 13, 2017Inventors: HERB HE HUANG, CLIFFORD IAN DROWLEY, HAI TING LI, JI GUANG ZHU
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Publication number: 20170077838Abstract: A generator includes a first member, a second member and a sliding mechanism. The first member includes a first electrode and a first dielectric layer affixed to the first electrode. The first dielectric layer includes a first material that has a first rating on a triboelectric series. The second member includes a second material that has a second rating on the triboelectric series that is different from the first rating. The second member includes a second electrode. The second member is disposed adjacent to the first dielectric layer so that the first dielectric layer is disposed between the first electrode and the second electrode. The sliding mechanism is configured to cause relative movement between the first member and the second member, thereby generating an electric potential imbalance between the first electrode and the second electrode.Type: ApplicationFiled: October 31, 2016Publication date: March 16, 2017Applicant: Georgia Tech Research CorporationInventors: Zhong Lin Wang, Guang Zhu, Ya Yang, Hulin Zhang, Youfan Hu, Jin Yang, Qingshen Jing, Peng Bai
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Patent number: 9595894Abstract: A triboelectric generator includes a first contact charging member and a second contact charging member. The first contact charging member includes a first contact layer and a conductive electrode layer. The first contact layer includes a material that has a triboelectric series rating indicating a propensity to gain electrons due to a contacting event. The conductive electrode layer is disposed along the back side of the contact layer. The second contact charging member is spaced apart from and disposed oppositely from the first contact charging member. It includes an electrically conductive material layer that has a triboelectric series rating indicating a propensity to lose electrons when contacted by the first contact layer during the contacting event. The electrically conductive material acts as an electrode. A mechanism maintains a space between the first contact charging member and the second contact charging member except when a force is applied thereto.Type: GrantFiled: September 20, 2013Date of Patent: March 14, 2017Assignee: Georgia Tech Research CorporationInventors: Zhong Lin Wang, Sihong Wang, Long Lin, Guang Zhu, Zong-Hong Lin
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Patent number: 9571009Abstract: A generator includes a first member, a second member and a sliding mechanism. The first member includes a first electrode and a first dielectric layer affixed to the first electrode. The first dielectric layer includes a first material that has a first rating on a triboelectric series. The second member includes a second material that has a second rating on the triboelectric series that is different from the first rating. The second member includes a second electrode. The second member is disposed adjacent to the first dielectric layer so that the first dielectric layer is disposed between the first electrode and the second electrode. The sliding mechanism is configured to cause relative movement between the first member and the second member, thereby generating an electric potential imbalance between the first electrode and the second electrode.Type: GrantFiled: June 18, 2014Date of Patent: February 14, 2017Assignee: Georgia Tech Research CorporationInventors: Zhong Lin Wang, Guang Zhu, Ya Yang, Hulin Zhang, Youfan Hu, Jin Yang, Qingshen Jing, Peng Bai
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Publication number: 20170028386Abstract: Disclosed are catalysts comprised of platinum and gold. The catalysts are generally useful for the selective oxidation of compositions comprised of a primary alcohol group and at least one secondary alcohol group wherein at least the primary alcohol group is converted to a carboxyl group. More particularly, the catalysts are supported catalysts including particles comprising gold and particles comprising platinum, wherein the molar ratio of platinum to gold is in the range of about 100:1 to about 1:4, the platinum is essentially present as Pt(0) and the platinum-containing particles are of a size in the range of about 2 to about 50 nm. Also disclosed are methods for the oxidative chemocatalytic conversion of carbohydrates to carboxylic acids or derivatives thereof. Additionally, methods are disclosed for the selective oxidation of glucose to glucaric acid or derivatives thereof using catalysts comprising platinum and gold. Further, methods are disclosed for the production of such catalysts.Type: ApplicationFiled: October 12, 2016Publication date: February 2, 2017Applicant: Rennovia Inc.Inventors: Vincent J. Murphy, James Shoemaker, Guang Zhu, Raymond Archer, George Frederick Salem, Eric L. Dias
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Patent number: 9543860Abstract: A generator includes a first cylindrical member and a second cylindrical member. The first cylindrical member includes a first dielectric layer including a first material that has a first rating on a triboelectric series; and a first conductive strip disposed around an exterior surfaces of the first cylindrical member. The first conductive strip includes a second material that has a second rating on the triboelectric series that is different from the first rating. The second cylindrical member is disposed about the first cylindrical member and includes a second dielectric layer that includes the first material. The second cylindrical member also includes the second material and at least one second conductive strip disposed around an interior surface of the second cylindrical member. A sliding mechanism causes lateral relative motion between the first cylindrical member against the second cylindrical member, generating an electric potential imbalance between the first and second conductive strip.Type: GrantFiled: August 5, 2015Date of Patent: January 10, 2017Assignee: Georgia Tech Research CorporationInventors: Zhong Lin Wang, Guang Zhu, Quingshen Jing
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Patent number: 9502970Abstract: A charge pump circuit includes a capacitor, a current source circuit coupled to the capacitor for providing a charging current and a discharging current to the capacitor. The current source circuit includes a switch transistor with a gate terminal for receiving a control signal, a current source transistor having a source terminal coupled to a drain of the switch transistor, and a feedthrough suppression capacitor coupled between a gate terminal of a gate terminal of the switch transistor and a gate terminal of the current source transistor. The feedthrough suppression capacitor is configured to lower a feedthrough effect.Type: GrantFiled: September 16, 2015Date of Patent: November 22, 2016Assignee: Semiconductor Manufacturing International (Shanghai) CorporationInventors: Guang Zhu, Guang Tao Feng
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Patent number: 9484842Abstract: A generator includes a disc shaped first unit, a disc shaped second unit and an axle. The first unit includes a substrate layer, a double complementary electrode layer and an electrification material layer. The electrode layer includes a first electrode member and a second electrode member. The first electrode member includes evenly spaced apart first electrode legs extending inwardly. The second electrode member is complementary in shape to the first electrode member. The legs of the first electrode member and the second electrode member are interleaved with each other and define a continuous gap therebetween. The electrification material includes a first material that is in a first position on the triboelectric series. The second unit defines elongated openings and corresponding elongated leg portions, and includes a second material that is at a second position on a triboelectric series, different than the first position.Type: GrantFiled: April 22, 2014Date of Patent: November 1, 2016Assignee: Georgia Tech Research CorporationInventors: Zhong Lin Wang, Guang Zhu, Long Lin, Sihong Wang, Jun Chen
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Patent number: 9468908Abstract: Disclosed are catalysts comprised of platinum and rhodium on a support selected from the group of zirconia, stabilized (doped) zirconia, zirconia-metal oxide composites, and mixtures thereof, wherein the outer surfaces of the support are selected from the group of zirconia, stabilized zirconia, and mixtures thereof. More particularly, the supported catalysts comprise platinum and rhodium, wherein the molar ratio of platinum to rhodium is in the range of about 3:1 to about 1:2. The average pore diameter of the catalyst supports is in the range of about 5 nm to about 70 nm and the surface area is in the range of about 15 m2/g to about 200 m2/g. Also disclosed are methods for the hydrodeoxygenation of carboxylic acids, mono- and/or di-lactones thereof having at least one hydroxyl group on the backbone thereof to corresponding acids where the backbone hydroxyl group has been reduced in the presence of the catalyst.Type: GrantFiled: May 14, 2013Date of Patent: October 18, 2016Assignee: Renovia Inc.Inventors: George Fredrick Salem, Guang Zhu, Alfred Gerhard Hagemeyer, Eric L. Dias
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Patent number: 9394875Abstract: A generator for harvesting energy from water in motion includes a sheet of a hydrophobic material, having a first side and an opposite second side, that is triboelectrically more negative than water. A first electrode sheet is disposed on the second side of the sheet of a hydrophobic material. A second electrode sheet is disposed on the second side of the sheet of a hydrophobic material and is spaced apart from the first electrode sheet. Movement of the water across the first side induces an electrical potential imbalance between the first electrode sheet and the second electrode sheet.Type: GrantFiled: August 5, 2015Date of Patent: July 19, 2016Assignee: Georgia Tech Research CorporationInventors: Zhong Lin Wang, Yanjie Su, Guang Zhu, Jun Chen