Patents by Inventor Apurva D. Chaudhari

Apurva D. Chaudhari 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).

  • Patent number: 8358005
    Abstract: The invention provides semiconductor material (e.g., gallium nitride material) devices (e.g., transistors) and methods associated with the same. The devices may be supported within a package that is formed, in part, of a polymeric material. In other embodiments, the devices may be mounted to a support (e.g., circuit board) and a polymeric material may encapsulate a portion of the device extending from the support.
    Type: Grant
    Filed: June 4, 2008
    Date of Patent: January 22, 2013
    Assignee: International Rectifier Corporation
    Inventors: Isik C. Kizilyalli, Robert J. Therrien, David M. Boulin, Apurva D. Chaudhari
  • Patent number: 7994540
    Abstract: Gallium nitride material transistors and methods associated with the same are provided. The transistors may be used in power applications by amplifying an input signal to produce an output signal having increased power. The transistors may be designed to transmit the majority of the output signal within a specific transmission channel (defined in terms of frequency), while minimizing transmission in adjacent channels. This ability gives the transistors excellent linearity which results in high signal quality and limits errors in transmitted data. The transistors may be designed to achieve low ACPR values (a measure of excellent linearity), while still operating at high drain efficiencies and/or high output powers. Such properties enable the transistors to be used in RF power applications including third generation (3G) power applications based on W-CDMA modulation.
    Type: Grant
    Filed: July 24, 2009
    Date of Patent: August 9, 2011
    Assignee: International Rectifier Corporation
    Inventors: Walter H. Nagy, Ricardo M. Borges, Jeffrey D. Brown, Apurva D. Chaudhari, James W. Cook, Jr., Allen W. Hanson, Jerry W. Johnson, Kevin J. Linthicum, Edwin L. Piner, Pradeep Rajagopal, John C. Roberts, Sameer Singhal, Robert J. Therrien, Andrei Vescan
  • Publication number: 20100019850
    Abstract: Gallium nitride material transistors and methods associated with the same are provided. The transistors may be used in power applications by amplifying an input signal to produce an output signal having increased power. The transistors may be designed to transmit the majority of the output signal within a specific transmission channel (defined in terms of frequency), while minimizing transmission in adjacent channels. This ability gives the transistors excellent linearity which results in high signal quality and limits errors in transmitted data. The transistors may be designed to achieve low ACPR values (a measure of excellent linearity), while still operating at high drain efficiencies and/or high output powers. Such properties enable the transistors to be used in RF power applications including third generation (3G) power applications based on W-CDMA modulation.
    Type: Application
    Filed: July 24, 2009
    Publication date: January 28, 2010
    Applicant: Nitronex Corporation
    Inventors: Walter H. Nagy, Ricardo M. Borges, Jeffrey D. Brown, Apurva D. Chaudhari, James W. Cook, JR., Allen W. Hanson, Jerry W. Johnson, Kevin J. Linthicum, Edwin L. Piner, Pradeep Rajagopal, John C. Roberts, Sameer Singhal, Robert J. Therrien, Andrei Vescan
  • Patent number: 7569871
    Abstract: Gallium nitride material transistors and methods associated with the same are provided. The transistors may be used in power applications by amplifying an input signal to produce an output signal having increased power. The transistors may be designed to transmit the majority of the output signal within a specific transmission channel (defined in terms of frequency), while minimizing transmission in adjacent channels. This ability gives the transistors excellent linearity which results in high signal quality and limits errors in transmitted data. The transistors may be designed to achieve low ACPR values (a measure of excellent linearity), while still operating at high drain efficiencies and/or high output powers. Such properties enable the transistors to be used in RF power applications including third generation (3G) power applications based on W-CDMA modulation.
    Type: Grant
    Filed: March 31, 2008
    Date of Patent: August 4, 2009
    Assignee: Nitronex Corporation
    Inventors: Walter H. Nagy, Jerry Wayne Johnson, Edwin Lanier Piner, Pradeep Rajagopal, John Claassen Roberts, Sameer Singhal, Robert Joseph Therrien, Andrei Vescan, Ricardo M. Borges, Jeffrey D. Brown, Apurva D. Chaudhari, James W. Cook, Allen W. Hanson, Kevin J. Linthicum
  • Publication number: 20090109646
    Abstract: The invention provides semiconductor material (e.g., gallium nitride material) devices (e.g., transistors) and methods associated with the same. The devices may be supported within a package that is formed, in part, of a polymeric material. In other embodiments, the devices may be mounted to a support (e.g., circuit board) and a polymeric material may encapsulate a portion of the device extending from the support.
    Type: Application
    Filed: June 4, 2008
    Publication date: April 30, 2009
    Applicant: Nitronex Corporation
    Inventors: Isik C. Kizilyalli, Robert J. Therrien, David M. Boulin, Apurva D. Chaudhari
  • Publication number: 20080246058
    Abstract: Gallium nitride material transistors and methods associated with the same are provided. The transistors may be used in power applications by amplifying an input signal to produce an output signal having increased power. The transistors may be designed to transmit the majority of the output signal within a specific transmission channel (defined in terms of frequency), while minimizing transmission in adjacent channels. This ability gives the transistors excellent linearity which results in high signal quality and limits errors in transmitted data. The transistors may be designed to achieve low ACPR values (a measure of excellent linearity), while still operating at high drain efficiencies and/or high output powers. Such properties enable the transistors to be used in RF power applications including third generation (3G) power applications based on W-CDMA modulation.
    Type: Application
    Filed: March 31, 2008
    Publication date: October 9, 2008
    Applicant: Nitronex Corporation
    Inventors: Walter H. Nagy, Ricardo M. Borges, Jeffrey D. Brown, Apurva D. Chaudhari, James W. Cook, Allen W. Hanson, Jerry W. Johnson, Kevin J. Linthicum, Edwin L. Piner, Pradeep Rajagopal, John C. Roberts, Sameer Singhal, Robert J. Therrien, Andrei Vescan
  • Patent number: 7352016
    Abstract: Gallium nitride material transistors and methods associated with the same are provided. The transistors may be used in power applications by amplifying an input signal to produce an output signal having increased power. The transistors may be designed to transmit the majority of the output signal within a specific transmission channel (defined in terms of frequency), while minimizing transmission in adjacent channels. This ability gives the transistors excellent linearity which results in high signal quality and limits errors in transmitted data. The transistors may be designed to achieve low ACPR values (a measure of excellent linearity), while still operating at high drain efficiencies and/or high output powers. Such properties enable the transistors to be used in RF power applications including third generation (3G) power applications based on W-CDMA modulation.
    Type: Grant
    Filed: November 13, 2006
    Date of Patent: April 1, 2008
    Assignee: Nitronex Corporation
    Inventors: Walter H. Nagy, Ricardo M. Borges, Jeffrey D. Brown, Apurva D. Chaudhari, James W. Cook, Allen W. Hanson, Jerry Wayne Johnson, Kevin J. Linthicum, Edwin Lanier Piner, Pradeep Rajagopal, John Claassen Roberts, Sameer Singhal, Robert Joseph Therrien, Andrei Vescan
  • Patent number: 7135720
    Abstract: Gallium nitride material transistors and methods associated with the same are provided. The transistors may be used in power applications by amplifying an input signal to produce an output signal having increased power. The transistors may be designed to transmit the majority of the output signal within a specific transmission channel (defined in terms of frequency), while minimizing transmission in adjacent channels. This ability gives the transistors excellent linearity which results in high signal quality and limits errors in transmitted data. The transistors may be designed to achieve low ACPR values (a measure of excellent linearity), while still operating at high drain efficiencies and/or high output powers. Such properties enable the transistors to be used in RF power applications including third generation (3G) power applications based on W-CDMA modulation.
    Type: Grant
    Filed: August 5, 2004
    Date of Patent: November 14, 2006
    Assignee: Nitronex Corporation
    Inventors: Walter H. Nagy, Ricardo M. Borges, Jeffrey D. Brown, Apurva D. Chaudhari, James W. Cook, Jr., Allen W. Hanson, Jerry W. Johnson, Kevin J. Linthicum, Edwin L. Piner, Pradeep Rajagopal, John C. Roberts, Sameer Singhal, Robert J. Therrien, Andrei Vescan