Patents by Inventor John Zhang
John 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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Patent number: 8244271Abstract: A shuttle message that is passed between GPS enabled devices that is processed at either a bit level or word level with data that the GPS enable device has already gathered and augmenting the positioning data stored at GPS enabled devices by retrieving data contained in the shuttle message. The shuttle message is then passed with any updated information from a GPS enabled device to one or more other devices such as a mobile station.Type: GrantFiled: October 20, 2004Date of Patent: August 14, 2012Assignee: CSR Technology Inc.Inventors: Ashutosh Pande, Steve Chang, Lionel Garin, Qiyue John Zhang
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Patent number: 8226539Abstract: The present disclosure provides a brachytherapy apparatus, system and method that delivers partial breast irradiation treatment for post-lumpectomy patients via introduction of a catheter-like device through a trocar. The apparatus may be introduced post-surgically with local anesthesia under image guidance into the previous excision site and into a cavity by a surgeon. The brachytherapy apparatus includes one or more thin-walled tubes, each of said thin-walled tubes being configured to contain one or more radioactive sources, at least one radiation source configured to deliver a prescribed dose of radiation, a whisk adjuster configured to permit adjustment of each of the one or more thin-walled tubes so that the tubes substantially conform to a size of the body cavity; and an expansion element configured to expand outwardly said one or more thin-walled tubes within the cavity so that the thin-walled tubes substantially conform to a shape and/or size of the body cavity.Type: GrantFiled: September 4, 2009Date of Patent: July 24, 2012Assignee: Portola Medical, Inc.Inventors: L. Michael Cutrer, Richard A. Terwilliger, Fredrick W. Winch, John Zhang, Wayne Higgins, Terence Ellard, David Bossi
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Publication number: 20120095389Abstract: The invention relates to a catheter system. The system comprises a catheter body having a chamber containing a low acoustic impedance medium. The catheter body includes an elongated body with an external surface and an ultrasound transducer having an external side between a first end and a second end. The ultrasound transducer is positioned over the external surface of the elongated body such that the first end is adjacent to the chamber.Type: ApplicationFiled: December 21, 2011Publication date: April 19, 2012Applicant: EKOS CORPORATIONInventors: Frederick J. Bennett, John Zhang, Gary Lichttenegger, James E. Rodriguey, Katsuro Tachibana
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Publication number: 20120089082Abstract: An apparatus for delivering ultrasound energy and a drug solution to a treatment site in a vessel is disclosed. The apparatus includes an elongate, hollow sheath having a distal opening and an energy delivery section at least partially constructed from a material that transmits ultrasound energy. The apparatus also includes a drug delivery lumen positioned along at least a portion of the sheath, the drug delivery lumen having at least one drug delivery port within the energy delivery section. The apparatus further includes an elongate body having an ultrasound element, the elongate body configured to be movably positioned within the sheath, such that ultrasonic energy can be transmitted from the ultrasound element through the energy delivery section.Type: ApplicationFiled: December 20, 2011Publication date: April 12, 2012Applicant: EKOS CORPORATIONInventors: JOHN ZHANG, GARY LICHTTENEGGER, JAMES E. RODRIGUEY, KATSURO TACHIBANA
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Patent number: 8137256Abstract: The present disclosure provides a brachytherapy apparatus that delivers a low dose, partial breast irradiation treatment for post-lumpectomy patients via introduction of a catheter-like device through a cannula. The apparatus may be introduced post-surgically with local anesthesia under image guidance into the previous excision site and into a cavity by a surgeon. The brachytherapy apparatus includes a seed containment device configured to contain a plurality of low-dose radioactive seeds therein. The seed containment device may be one or more thin-walled tubes. The apparatus is further configured to expand so that at least a portion of the seed containment device is positioned against the remaining tissue and the plurality of radioactive seeds are disposed at the perimeter of the seed containment device. Also described are various clamps for the apparatus, and sleeves for adjusting the size of the device to fit a cavity when the apparatus is in use.Type: GrantFiled: December 16, 2005Date of Patent: March 20, 2012Assignee: Portola Medical, Inc.Inventors: L. Michael Cutrer, Richard A. Terwilliger, Fredrick Winch, John Zhang, Wayne Higgins, Terence Ellard, David Bossi
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Publication number: 20110098623Abstract: Methods and devices for selectively removing from a subject a target cell, pathogen, or virus expressing a binding partner on its surface are presented. In one embodiment, the device contains an excorporeal circuit, which includes, at least, a magnetic filter comprising a magnet and a removable, magnetizable substrate capable of capturing magnetic nanomaterials; and a pump in fluid communication with the magnetic filter, wherein the pump moves fluid through the excorporeal circuit. The magnet is capable of generating a magnetic field sufficient to capture magnetic nanomaterials in the magnetic field. In a preferred embodiment, the target cells are cancer cells and/or cells infected with pathogenic agents. The devices may be designed for extracorporeal or in vivo uses. Functionalized superparamagnetic nanoparticles are either mixed ex vivo with a biological fluid from the patient or injected into the patient.Type: ApplicationFiled: June 17, 2009Publication date: April 28, 2011Inventors: Zhongju John Zhang, Kenneth Edward Scarberry, Erin Beth Dickerson, John Francis McDonald
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Patent number: 7914509Abstract: The invention relates to a catheter system. The system comprises a catheter body having a chamber containing a low acoustic impedance medium. The catheter body includes an elongated body with an external surface and an ultrasound transducer having an external side between a first end and a second end. The ultrasound transducer is positioned over the external surface of the elongated body such that the first end is adjacent to the chamber.Type: GrantFiled: February 15, 2007Date of Patent: March 29, 2011Assignee: Ekos CorporationInventors: Frederick J. Bennett, John Zhang, Gary Lichttenegger, James E. Rodriguey, Katsuro Tachibana
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Patent number: 7883237Abstract: A lamp heat extractor device for lowering the cold spot temperature of a fluorescent lamp includes a base portion adapted to be attached to a heat conductive portion of the fluorescent lighting fixture proximate the fixture's lamp socket or sockets, and an extended sleeve end portion thermally connected to the base portion by a conductive connector portion. The conductive connector portion positions the extended sleeve portion so that it contacts the cold spot end of the fluorescent lamp or lamps held by the lamp sockets of the fixture to allow heat transfer to the fixture housing to which the heat extractor device is attached. Suitably, the outer surface of the extended sleeve end portion of the heat extractor device can have a plurality of radially extending fins for increasing surface area for heat radiation from the extended sleeve portion, thereby increasing the overall heat extracting efficiency of the device.Type: GrantFiled: September 28, 2006Date of Patent: February 8, 2011Assignee: ABL IP Holding, LLCInventors: John Zhang, Peter Y. Y. Ngai, Qirong Cao
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Patent number: 7862497Abstract: A brachytherapy device may include a plurality of rods, each configured to move between a straightened position and a bowed position, the plurality of rods configured to collectively form a shaft while each rod is in the straightened position and to collectively form at least one cage while at least some of the rods are in the bowed position, at least some of the rods having lumens that are configured to receive and hold radioactive material. A brachytherapy device may further include a rotatable mechanism configured to cause at least some of the plurality of rods to move between the straightened position and the bowed position upon rotation of the rotatable mechanism.Type: GrantFiled: November 5, 2007Date of Patent: January 4, 2011Assignee: Portola Medical, Inc.Inventors: L. Michael Cutrer, Fredrick Wintch, Richard A. Terwilliger, John Zhang, David Bossi
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Publication number: 20090326314Abstract: The present disclosure provides a brachytherapy apparatus, system and method that delivers partial breast irradiation treatment for post-lumpectomy patients via introduction of a catheter-like device through a trocar. The apparatus may be introduced post-surgically with local anesthesia under image guidance into the previous excision site and into a cavity by a surgeon. The brachytherapy apparatus includes one or more thin-walled tubes, each of said thin-walled tubes being configured to contain one or more radioactive sources, at least one radiation source configured to deliver a prescribed dose of radiation, a whisk adjuster configured to permit adjustment of each of the one or more thin-walled tubes so that the tubes substantially conform to a size of the body cavity; and an expansion element configured to expand outwardly said one or more thin-walled tubes within the cavity so that the thin-walled tubes substantially conform to a shape and/or size of the body cavity.Type: ApplicationFiled: September 4, 2009Publication date: December 31, 2009Inventors: L. Michael Cutrer, Richard A. Terwilliger, Fredrick W. Winch, John Zhang, Wayne Higgins, Terence Ellard, David Bossi
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Patent number: 7573184Abstract: A heat retaining sleeve for raising the cold spot temperature of a fluorescent lamp is comprised of a base end, a distal end, and a sleeve body sized and shaped to fit over the end of a fluorescent lamp or lamps where the lamp's cold spot exists. The sleeve creates a heat retaining air gap between the inner surface of the sleeve body and the lamp end or ends with the cold spot, and has sufficient length to so that, when fitted over the lamp end or ends, the cold spot temperature is elevated to a temperature that increase the lumen output of the fitted fluorescent lamp or lamps.Type: GrantFiled: June 30, 2005Date of Patent: August 11, 2009Assignee: Acuity Brands, Inc.Inventors: Peter Y. Y. Ngai, John Zhang, Hue Ly
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Publication number: 20090123267Abstract: The disclosure provides a gas turbine engine having a plurality of nozzle vanes extending between an inner shroud wall and an outer shroud wall of the engine. Each of the vanes includes a leading edge and at least one cooling protrusion extending upstream from a center of the leading edge. A cooling system is provided that is operable to inject cooling air upstream from the vanes. The disclosure also provides a method of cooling a gas turbine engine. The method includes the steps of supplying cooling air to an engine nozzle upstream of a gas directing vane, and adjusting the flow of the cooling air with a cooling protrusion extending forward from a leading edge center of the vane.Type: ApplicationFiled: October 24, 2007Publication date: May 14, 2009Inventors: Luzeng John Zhang, Hee Koo Moon
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Patent number: 7413556Abstract: A system for delivering ultrasound energy to a treatment section in a vessel is disclosed. The system includes a sheath with a utility lumen and an energy delivery section at least partially constructed from a material which transmits ultrasound energy. The system also includes a drug delivery member having a plurality of drug delivery ports which are positioned adjacent the energy delivery section. The system further includes an elongated body including at least one ultrasound element and configured to be movably positioned within the utility lumen to transmit the ultrasound energy from the ultrasound element through the energy delivery section.Type: GrantFiled: February 18, 2003Date of Patent: August 19, 2008Assignee: Ekos CorporationInventors: John Zhang, Gary Lichttenegger, James E. Rodriguey, Katsuro Tachibana
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Publication number: 20080146862Abstract: A brachytherapy device may include a plurality of rods, each configured to move between a straightened position and a bowed position, the plurality of rods configured to collectively form a shaft while each rod is in the straightened position and to collectively form at least one cage while at least some of the rods are in the bowed position, at least some of the rods having lumens that are configured to receive and hold radioactive material. A brachytherapy device may further include a rotatable mechanism configured to cause at least some of the plurality of rods to move between the straightened position and the bowed position upon rotation of the rotatable mechanism.Type: ApplicationFiled: November 5, 2007Publication date: June 19, 2008Inventors: L. Michael CUTRER, Frederick WINTCH, Richard A. TERWILLIGER, John ZHANG, David BOSSI
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Patent number: 7340360Abstract: A method for efficiently and accurately measuring a maximum Vcc calculation or failure rate and lifetime projection for microprocessors and other semiconductor products analytically scales low voltages applied to thinner oxides to thicker oxides. The expanded voltage window that is closer to the use voltage is obtained thereby to provide accurate voltage acceleration factors and max Vce extraction.Type: GrantFiled: February 8, 2006Date of Patent: March 4, 2008Assignee: Advanced Micro Devices, Inc.Inventors: John Zhang, Kurt Taylor, Eugene Zhao, Amit Marathe, Rolf Geilenkeuser, Joerg-Oliver Weidner
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Publication number: 20070293555Abstract: The invention provides substituted pyrazolidinone compounds, and methods of treatment and pharmaceutical compositions that utilize or comprise one or more such compounds. Compounds of the invention are useful for a variety of therapies, including treating or preventing various cancers, inflammation, septic shock, preterm labor, infertility, pain, and ischemia, and other diseases and disorders associated with MEK-1 and/or ERK-2 activation.Type: ApplicationFiled: July 24, 2007Publication date: December 20, 2007Applicant: APPLIED RESEARCH SYSTEMS ARS HOLDING N.V.Inventors: Stephen ARKINSTALL, Antonio Arulanandam, Xuliang Jiang, Sharad Magar, Roustem Nabioullin, John Zhang, Peter Blume-Jensen
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Publication number: 20070270627Abstract: The present disclosure provides a brachytherapy apparatus, system and method that delivers partial breast irradiation treatment for post-lumpectomy patients via introduction of a catheter-like device through a trocar. The apparatus may be introduced post-surgically with local anesthesia under image guidance into the previous excision site and into a cavity by a surgeon. The brachytherapy apparatus includes one or more thin-walled tubes, each of said thin-walled tubes being configured to contain one or more radioactive sources, at least one radiation source configured to deliver a prescribed dose of radiation, a whisk adjuster configured to permit adjustment of each of the one or more thin-walled tubes so that the tubes substantially conform to a size of the body cavity; and an expansion element configured to expand outwardly said one or more thin-walled tubes within the cavity so that the thin-walled tubes substantially conform to a shape and/or size of the body cavity.Type: ApplicationFiled: April 21, 2006Publication date: November 22, 2007Inventors: L. Cutrer, Richard Terwilliger, Fredrick Wintch, John Zhang, Wayne Higgins, Terence Ellard, David Bossi
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Publication number: 20070142694Abstract: The present disclosure provides a brachytherapy apparatus that delivers a low dose, partial breast irradiation treatment for post-lumpectomy patients via introduction of a catheter-like device through a cannula. The apparatus may be introduced post-surgically with local anesthesia under image guidance into the previous excision site and into a cavity by a surgeon. The brachytherapy apparatus includes a seed containment device configured to contain a plurality of low-dose radioactive seeds therein. The seed containment device may be one or more thin-walled tubes. The apparatus is further configured to expand so that at least a portion of the seed containment device is positioned against the remaining tissue and the plurality of radioactive seeds are disposed at the perimeter of the seed containment device. Also described are various clamps for the apparatus, and sleeves for adjusting the size of the device to fit a cavity when the apparatus is in use.Type: ApplicationFiled: December 16, 2005Publication date: June 21, 2007Inventors: L. Michael Cutrer, Richard A. Terwilliger, Fredrick Winch, John Zhang, Wayne Higgins, Terence Ellard, David Bossi
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Publication number: 20070109575Abstract: A printer driver enables a user to determine whether the features that are required to print a specified job are available to a selected network printer. The printer driver queries the selected printer to acquire the current status and other relevant information for each feature that is required to print the job, then provides the results of the query at a user interface. Accordingly, if any of the required features are unavailable to the selected printer, the user can print the job using another printer or take some other appropriate action.Type: ApplicationFiled: November 14, 2005Publication date: May 17, 2007Inventors: David Salgado, Bradley Smith, Vibhaker Moudgil, John Zhang, Likang Guo
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Publication number: 20070109777Abstract: A lamp heat extractor device for lowering the cold spot temperature of a fluorescent lamp includes a base portion adapted to be attached to a heat conductive portion of the fluorescent lighting fixture proximate the fixture's lamp socket or sockets, and an extended sleeve end portion thermally connected to the base portion by a conductive connector portion. The conductive connector portion positions the extended sleeve portion so that it contacts the cold spot end of the fluorescent lamp or lamps held by the lamp sockets of the fixture to allow heat transfer to the fixture housing to which the heat extractor device is attached. Suitably, the outer surface of the extended sleeve end portion of the heat extractor device can have a plurality of radially extending fins for increasing surface area for heat radiation from the extended sleeve portion, thereby increasing the overall heat extracting efficiency of the device.Type: ApplicationFiled: September 28, 2006Publication date: May 17, 2007Applicant: Acuity Brands, Inc.Inventors: John Zhang, Peter Y.Y. Ngai, Qirong Cao