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Now showing items 479-498 of 619

    • Quadrature processed LIDAR system 

      Virginia Tech Intellectual Properties, Inc.; Holton, Carvel E. (United States Patent and Trademark Office, 2003-08-19)
      A method of generating in-quadrature signals is disclosed. The method comprises phase shifting a Doppler frequency-shifted signal; phase shifting a local oscillator signal; mixing the phase shifted Doppler frequency-shifted ...
    • Quasi-parallel voltage regulator 

      Virginia Tech Intellectual Properties, Inc.; Lee, Fred C.; Xu, Ming Gang; Liu, Ya; Sun, Ju-Lu (United States Patent and Trademark Office, 2011-01-18)
      Improved regulation and transient response are provided by a power supply architecture providing both unregulated and regulated voltage converters in parallel but deriving input power from separate power supplies connected ...
    • Quasi-resonant DC-DC converters with reduced body diode loss 

      Virginia Tech Intellectual Properties, Inc.; Lee, Fred C.; Xu, Ming Gang (United States Patent and Trademark Office, 2006-01-24)
      Buck converters having a resonant inductor Lr, resonant capacitor Cr, and synchronous switch Q3 that together provide reduced switching loss and soft switching. In operation, the resonant inductor Lr is charged during a ...
    • Radial-axial electromagnetic flux electric motor, coaxial electromagnetic flux electric motor, and rotor for same 

      Virginia Tech Intellectual Properties, Inc.; Ramu, Krishnan (United States Patent and Trademark Office, 2006-04-25)
      A rotor for an electrical motor may include a plurality of salient radial field rotor poles and a plurality of salient axial field rotor poles. The radial field rotor poles and the axial field rotor poles are respectively ...
    • Rare earth manganate films made by metalorganic decomposition or metalorganic chemical vapor deposition for nonvolatile memory devices 

      Virginia Polytechnic Institute and State University; Desu, Seshu B.; Peng, Chia-Tien Shian; Si, Jie (United States Patent and Trademark Office, 1997-04-29)
      A ferroelectric memory device having a perovskite thin film of a rare earth manganate and processes for manufacturing the same. The perovskite thin film layer has properties consistent with high quality nonvolatile memory ...
    • Raspberry plant named `Josephine` 

      University of Wisconsin at River Falls; Virginia Tech Intellectual Properties, Inc.; University of Maryland; Stiles, Herbert D.; Swartz, Harry Jan; Fiola, Joseph A.; Smith, Brian R. (United States Patent and Trademark Office, 2001-10-30)
      The present invention is a new and distinct fall bearing red raspberry cultivar named `Josephine`, which is capable of producing fruit on primocanes, the fruit being larger, with tougher skin and more cohesive than that ...
    • Raspberry plant named ‘Emily’ 

      University of Maryland; Virginia Tech Intellectual Properties, Inc.; Stiles, Herbert D.; Swartz, Harry Jan; Fiola, Joseph A.; Smith, Brian R. (United States Patent and Trademark Office, 2002-01-15)
      The present invention is a new and distinct spring bearing red raspberry cultivar named ‘Emily’, which is capable of producing highly cohesive and firm fruit in the spring midseason, the fruit being larger and more durable ...
    • Raspberry plant named ‘Jaclyn’ 

      University of Wisconsin; Virginia Tech Intellectual Properties, Inc.; University of Maryland; Stiles, Herbert D.; Swartz, Harry Jan; Fiola, Joseph A.; Smith, Brian R. (United States Patent and Trademark Office, 2005-03-08)
      The present invention is a new and distinct primocane fruiting red raspberry cultivar named ‘Jaclyn’, which is capable of producing fruit much earlier than that of the standard cultivars. The cultivar is characterized by ...
    • Reaction products of esters of polyphosphoric acids and heavy metal oxides and method of making same 

      Virginia Polytechnic Institute; Hurt, Robert Harry (United States Patent and Trademark Office, 1951-03-13)
    • Reactive ion etching of lead zirconate titanate and ruthenium oxide thin films 

      Cedraeus Incorporated; Virginia Tech Intellectual Properties, Inc.; Sharp Kabushiki Kaisha; Desu, Seshu B.; Pan, Wei; Vijay, Dilip P. (United States Patent and Trademark Office, 1996-03-05)
      A method of reactive ion etching both a lead zirconate titanate ferroelectric dielectric and a RuO.sub.2 electrode, and a semiconductor device produced in accordance with such process. The dielectric and electrode are ...
    • Reactive ion etching of lead zirconate titanate and ruthenium oxide thin films using CHClFCF.sub.3 or CHCl.sub.2 CF.sub.3 as an etch gas 

      Cedraeus Incorporated; Virginia Polytechnic Institute and State University; Sharp Kabushiki Kaisha; Desu, Seshu B.; Pan, Wei (United States Patent and Trademark Office, 1995-01-17)
      A method of reactive ion etching both a lead zirconate titanate ferroelectric dielectric and a RuO.sub.2 electrode, and a semiconductor device produced in accordance with such process. The dielectric and electrode are ...
    • Rearranged taxol compounds and method of using in testing of in vivo activity 

      Virginia Tech Intellectual Properties, Inc.; Kingston, David G. I.; Samaranayake, Gamini S. (United States Patent and Trademark Office, 1993-03-16)
      In a preferred embodiment, taxol is treated with mesyl chloride to prepare a taxol derivative with a contracted A-ring, which has comparable activity to taxol in a tubulin depolymerization assay, and which shows cytotoxicity ...
    • Rearranged taxol compounds and method of using in testing of in vivo activity 

      Virginia Tech Intellectual Properties, Inc.; Kingston, David G. I.; Samaranayake, Gamini S. (United States Patent and Trademark Office, 1994-03-22)
      In a preferred embodiment, taxol is treated with mesyl chloride to prepare a taxol derivative with a contracted A-ring, which has comparable activity to taxol in a tubulin depolymerization assay, and which shows cytotoxicity ...
    • Recombinant vaccine for diseases caused by encapsulated organisms 

      Virginia Tech Intellectual Properties, Inc.; Inzana, Thomas J.; Ward, Christine (United States Patent and Trademark Office, 2001-12-04)
      Vaccines for diseases caused by normally encapsulated organisms are produced by genetically modifying those organisms by deleting the genes encoding for capsule synthesis or a portion thereof sufficient to produce ...
    • Recombinant vaccine for diseases caused by encapsulated organisms 

      Virginia Tech Intellectual Properties, Inc.; Inzana, Thomas J.; Ward, Christine (United States Patent and Trademark Office, 2000-07-11)
      Vaccines for diseases caused by normally encapsulated organisms are produced by genetically modifying those organisms by deleting the genes encoding for capsule synthesis or a portion thereof sufficient to produce ...
    • Reduced operator emission exposure antennas for safer hand-held radios and cellular telephones 

      Center for Innovative Technology; Virginia Polytechnic Institute and State University; Virginia Tech Intellectual Properties, Inc.; Stutzman, Warren L.; Nealy, J. Randall (United States Patent and Trademark Office, 1996-07-30)
      An antenna for a personal communication device designed for reducing RF emissions to a user's head and body comprises a single half-wave dipole antenna element mounted on the top of a telescoping rod such that the antenna ...
    • Reducing common mode noise of power factor correction converters using general balance concept 

      Virginia Tech Intellectual Properties, Inc.; Lee, Fred C.; Wang, Shuo; Kong, Pengju (United States Patent and Trademark Office, 2010-09-28)
      Common mode (CM) noise is substantially canceled in a switching power supply circuit such as a boost converter by providing a split inductor and analyzing the switching power supply circuit as a bridge circuit formed of ...
    • Reissert compound of bisbenzimidazole 

      Virginia Tech Intellectual Properties, Inc.; Gibson, Harry W.; Jois, Yajnanarayana H. (United States Patent and Trademark Office, 1990-12-11)
      A Reissert compound of bisbenzimidazole can be formed by first reacting benzimidazole with an aliphatic diacid chloride to form bisbenzimidazole and then reacting the bisbenzimidazole with an aliphatic acid chloride and ...
    • Resistive volatile/non-volatile floating electrode logic/memory cell 

      Virginia Tech Intellectual Properties, Inc.; Liu, Tong; Orlowski, Marius K.; Verma, Mohini; Kang, Yuhong (United States Patent and Trademark Office, 2017-10-17)
      A resistive floating electrode device (RFED) provides a logic cell or non-volatile storage or dynamic or static random access memory on an extremely compact matrix with individual cells scalable to the minimum available ...
    • Resonant converters with secondary-side resonance 

      Virginia Tech Intellectual Properties, Inc.; Lee, Fred C.; Liu, Kwang-Hwa (United States Patent and Trademark Office, 1988-11-15)
      A family of quasi-resonant converters is disclosed as comprising a voltage source, a transformer having primary and secondary windings, and a switch for periodically coupling the voltage source to the primary winding, ...