Patents by Inventor Hexiang Zhu
Hexiang 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: 10166518Abstract: Disclosed herein is an apparatus and method for growing a diamond. The apparatus for growing a diamond comprises: a reaction cell that is configured to grow the diamond therein; a main heater including a main heating surface that is arranged along a first inner surface of the reaction cell; and a sub-heater including a sub-heating surface that is arranged along a second inner surface of the reaction cell, the second inner surface being non-parallel with the first inner surface.Type: GrantFiled: June 1, 2017Date of Patent: January 1, 2019Assignee: SUNSET PEAK INTERNATIONAL LIMITEDInventors: Hexiang Zhu, Karl Pearson
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Publication number: 20170266634Abstract: Disclosed herein is an apparatus and method for growing a diamond. The apparatus for growing a diamond comprises: a reaction cell that is configured to grow the diamond therein; a main heater including a main heating surface that is arranged along a first inner surface of the reaction cell; and a sub-heater including a sub-heating surface that is arranged along a second inner surface of the reaction cell, the second inner surface being non-parallel with the first inner surface.Type: ApplicationFiled: June 1, 2017Publication date: September 21, 2017Inventors: Hexiang ZHU, Karl Pearson
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Patent number: 9238875Abstract: A multi-layer structure in a reaction cell for a diamond growth is provided. The multi-layer structure includes: a diamond seed; a first metal catalyst layer provided on the diamond seed, the first metal catalyst layer containing a first concentration of carbon; a second metal catalyst layer provided on the first metal layer, the second metal catalyst layer containing a second concentration of carbon that is higher than the first concentration; and a carbon source layer provided on the second metal layer.Type: GrantFiled: February 1, 2011Date of Patent: January 19, 2016Assignee: Sunset Peak International LimitedInventors: Hexiang Zhu, Karl Pearson, Joo Ro Kim
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Patent number: 8888847Abstract: A cover for receiving an implantable medical device includes self-anchoring protrusions that engage tissue of a pocket where the device is implanted to resist movement including rotation and flipping. The implantable medical device is placed into the cover prior to being placed into the pocket so that once in the pocket, the device may reduce rotating, flipping, or otherwise moving. The self-anchoring protrusions may include barbs of various shapes to frictionally engage the tissue of the pocket. The cover may include features such as a strap and elastic construction to assist in holding the implantable medical device within the cover. Apertures may be included to enable the device. The cover may include additional features like suture tabs to allow additional fixation via suturing the cover to the surrounding tissue.Type: GrantFiled: May 19, 2010Date of Patent: November 18, 2014Assignee: Medtronic, Inc.Inventors: Michael Hexiang Zhu Drew, Gary R. Noel
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Publication number: 20130160700Abstract: Disclosed is a method of growing a diamond, including the steps of providing a diamond seed in a reaction chamber; providing a protective layer above the diamond seed; providing a catalyst above the protective layer; providing a carbon source above the catalyst; applying pressure to the reaction chamber; heating the catalyst to a first temperature; holding the first temperature for a first duration; heating the catalyst to a second temperature; and holding the second temperature for a second duration.Type: ApplicationFiled: December 21, 2011Publication date: June 27, 2013Applicant: GEMESIS DIAMOND COMPANYInventors: Joo Ro KIM, Hexiang ZHU, Karl PEARSON
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Publication number: 20120312227Abstract: Disclosed herein is an apparatus and method for growing a diamond. The apparatus for growing a diamond comprises: a reaction cell that is configured to grow the diamond therein; a main heater including a main heating surface that is arranged along a first inner surface of the reaction cell; and a sub-heater including a sub-heating surface that is arranged along a second inner surface of the reaction cell, the second inner surface being non-parallel with the first inner surface.Type: ApplicationFiled: June 10, 2011Publication date: December 13, 2012Applicant: GEMESIS DIAMOND COMPANYInventors: Hexiang ZHU, Karl PEARSON
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Publication number: 20120192785Abstract: A multi-layer structure in a reaction cell for a diamond growth is provided. The multi-layer structure includes: a diamond seed; a first metal catalyst layer provided on the diamond seed, the first metal catalyst layer containing a first concentration of carbon; a second metal catalyst layer provided on the first metal layer, the second metal catalyst layer containing a second concentration of carbon that is higher than the first concentration; and a carbon source layer provided on the second metal layer.Type: ApplicationFiled: February 1, 2011Publication date: August 2, 2012Applicant: GEMESIS DIAMOND COMPANYInventors: Hexiang Zhu, Karl Pearson, Joo Ro Kim
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Publication number: 20120059467Abstract: A cover for receiving an implantable medical device includes self-anchoring protrusions that engage tissue of a pocket where the device is implanted to resist movement including rotation and flipping. The implantable medical device is placed into the cover prior to being placed into the pocket so that once in the pocket, the device may reduce rotating, flipping, or otherwise moving. The self-anchoring protrusions may include barbs of various shapes to frictionally engage the tissue of the pocket. The cover may include features such as a strap and elastic construction to assist in holding the implantable medical device within the cover. Apertures may be included to enable the device. The cover may include additional features like suture tabs to allow additional fixation via suturing the cover to the surrounding tissue.Type: ApplicationFiled: May 19, 2010Publication date: March 8, 2012Inventors: Michael Hexiang Zhu Drew, Gary R. Noel
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Publication number: 20110126759Abstract: An apparatus for growing a synthetic diamond comprises a growth chamber, at least one manifold allowing access to the growth chamber, and a plurality of safety clamps positioned on opposite sides of the growth chamber; wherein the growth chamber and the plurality of safety clamps are comprised of a material having a tensile strength of about 120,000-200,000 psi, a yield strength of about 100,000-160,000 psi, an elongation of about 10-20%, an area reduction of about 40-50%, an impact strength of about 30-40 ft-lbs, and a hardness greater than 320 BHN.Type: ApplicationFiled: January 28, 2011Publication date: June 2, 2011Applicant: THE GEMESIS CORPORATIONInventors: Robert CHODELKA, Hexiang ZHU, Alexander NOVIKOV
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Patent number: 7887631Abstract: An apparatus for growing a synthetic diamond comprises a growth chamber, at least one manifold allowing access to the growth chamber, and a plurality of safety clamps positioned on opposite sides of the growth chamber; wherein the growth chamber and the plurality of safety clamps are comprised of a material having a tensile strength of about 120,000-200,000 psi, a yield strength of about 100,000-160,000 psi, an elongation of about 10-20%, an area reduction of about 40-50%, an impact strength of about 30-40 ft-lbs, and a hardness greater than 320 BHN.Type: GrantFiled: June 24, 2005Date of Patent: February 15, 2011Assignee: The Gemesis CorporationInventors: Robert Chodelka, Hexiang Zhu, Alexander Novikov
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Publication number: 20070014965Abstract: A gasket comprises a material having a creep relaxation of about 5-40%, a sealability of about 0.10-0.50 ml/hr, compressibility of about 5-40% and a tensile strength of about 1000-5000 psi. The gasket is used in a high pressure, high temperature apparatus.Type: ApplicationFiled: June 24, 2005Publication date: January 18, 2007Inventors: Robert Chodelka, Hexiang Zhu, Alexander Novikov, John Clement
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Publication number: 20060288927Abstract: An apparatus for growing a synthetic diamond comprises a growth chamber, at least one manifold allowing access to the growth chamber, and a plurality of safety clamps positioned on opposite sides of the growth chamber; wherein the growth chamber and the plurality of safety clamps are comprised of a material having a tensile strength of about 120,000-200,000 psi, a yield strength of about 100,000-160,000 psi, an elongation of about 10-20%, an area reduction of about 40-50%, an impact strength of about 30-40 ft-lbs, and a hardness greater than 320 BHN.Type: ApplicationFiled: June 24, 2005Publication date: December 28, 2006Inventors: Robert Chodelka, Hexiang Zhu, Alexander Novikov
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Publication number: 20060292302Abstract: Disclosed herein is an apparatus and method for growing a synthetic diamond. The apparatus for growing a synthetic diamond comprises: a reaction area contained with a high pressure, high temperature apparatus; and a means for pulling a vacuum on the reaction area. The method for growing a synthetic diamond includes the steps of using a reaction area contained within a high pressure, high temperature apparatus; and pulling a vacuum on the reaction area.Type: ApplicationFiled: June 24, 2005Publication date: December 28, 2006Inventors: Robert Chodelka, Hexiang Zhu, Reza Abbaschian, Nikolay Patrin, Alexander Novikov
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Patent number: 7044932Abstract: An implantable drug pump and an access template for locating the implanted pump refill septum, also known as a refill port, or cathether access port are disclosed. The access template comprises a denial surface, an access port, and template labeling. The denial surface has a periphery with a location diameter and an alignment feature. The denial surface is configured to prevent penetration through a dermal layer into the implantable drug pump. The access port carried on the denial surface is configured to permit penetration through the dermal layer. The template labeling uses a label color that is substantially the same color as needle labeling color for a needle sheath covering a needle that is intended to access an implantable drug pump. The access template can be configured into a wide variety of apparatus and method embodiments.Type: GrantFiled: October 18, 2002Date of Patent: May 16, 2006Assignee: Medtronic, Inc.Inventors: Craig Frederic Borchard, Michael Hexiang Zhu Drew, Jeffrey Richard Bennett
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Publication number: 20040078000Abstract: An implantable drug pump and an access template for locating the implanted pump refill septum, also known as a refill port, or cathether access port are disclosed. The access template comprises a denial surface, an access port, and template labeling. The denial surface has a periphery with a location diameter and an alignment feature. The denial surface is configured to prevent penetration through a dermal layer into the implantable drug pump. The access port carried on the denial surface is configured to permit penetration through the dermal layer. The template labeling uses a label color that is substantially the same color as needle labeling color for a needle sheath covering a needle that is intended to access an implantable drug pump. The access template can be configured into a wide variety of apparatus and method embodiments.Type: ApplicationFiled: October 18, 2002Publication date: April 22, 2004Applicant: Medtronic, Inc.Inventors: Craig Frederic Borchard, Michael Hexiang Zhu Drew, Jeffrey Richard Bennett
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Patent number: 6431203Abstract: An actuator mounting device for mounting an actuator having an actuator housing to a support structure associated with a fluid flow control unit. The actuator mounting device includes a mounting bracket and a pair of guide members. The mounting bracket includes a pair of spaced side walls, a rail extending from each side wall, and a stop. The pair of spaced side walls define a leading end and a trailing end. Further, each of the side walls has a base portion securable to the support structure. Finally, the stop is positioned at the trailing end of the spaced side walls. The pair of guide members are each configured to be mountable to an opposing side of the actuator housing and each include an engagement surface configured to slidably engage one of said rails. During assembly of the actuator to the support structure, the rails direct the guide members to a secured position at which the actuator housing is connected to the stop.Type: GrantFiled: February 1, 1999Date of Patent: August 13, 2002Assignee: Honeywell International Inc.Inventors: Hexiang Zhu, Robert C. Knutson
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Patent number: 6322282Abstract: An adapter is designed to connect a member such as a shaft to the hub forming the output element of an actuator. The adapter includes a connection feature which attaches to the member, and a shaft which mates with the bore in the actuator hub. The adapter has a resilient arm attached to the end of the shaft and which extends through the bore. The shaft also carries a stop element. The arm carries a retainer feature at its end. With the shaft mated with the bore, when the arm is undeflected the retainer feature engages an adjacent end surface of the hub to lock the adapter into place. The arm can be deflected to disengage the retainer feature from the hub and allow the adapter to be removed. In one embodiment, the end surface of the hub and the retainer surface are beveled or slanted to strongly oppose axial loads and yet to allow the adapter to withdraw from the hub's bore upon deflecting the arm.Type: GrantFiled: October 27, 1999Date of Patent: November 27, 2001Assignee: Honeywell International Inc.Inventors: Daniel C. Kussman, Robert C. Knutson, Matthew G. Margenau, Alan D. Stordahl, Hexiang Zhu