Patents by Inventor Rajesh S. Patel
Rajesh S. Patel 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: 9511199Abstract: A nozzle comprising a thin, flexible substantially planar polymeric film having a plurality of pores with structures allowing for generation of an aerosol at reduced extrusion pressure is disclosed. The pores can comprise at least two sections, or steps, in which the thickness of the membrane is reduced in stepwise fashion, or the pores can be tapered. Nozzles formed comprising pores having such structures permit aerosol generation at lower extrusion pressures, thereby allowing for decreased weight of aerosolization devices, increased efficiency, increased portability and increased battery life. The pore structures also allow for the use of thicker, more easily processed polymeric films in manufacturing while having a thinner, more efficient aerosolization area. The use of decreased extrusion pressures also results in increased uniformity in aerosol generation and improved reliability of other components.Type: GrantFiled: January 16, 2014Date of Patent: December 6, 2016Assignee: Aradigm CorporationInventors: Rajesh S. Patel, Sudarsan Srinivasan
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Patent number: 9147989Abstract: A femtosecond laser based laser processing system having a femtosecond laser, frequency conversion optics, beam manipulation optics, target motion control, processing chamber, diagnostic systems and system control modules. The femtosecond laser based laser processing system allows for the utilization of the unique heat control in micromachining, and the system has greater output beam stability, continuously variable repetition rate and unique temporal beam shaping capabilities.Type: GrantFiled: December 9, 2013Date of Patent: September 29, 2015Assignee: IMRA AMERICA, INC.Inventors: Lawrence Shah, James M. Bovatsek, Alan Y. Arai, Tadashi Yamamoto, Rajesh S. Patel, Donald J. Harter
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Publication number: 20140174439Abstract: A nozzle comprising a thin, flexible substantially planar polymeric film having a plurality of pores with structures allowing for generation of an aerosol at reduced extrusion pressure is disclosed. The pores can comprise at least two sections, or steps, in which the thickness of the membrane is reduced in stepwise fashion, or the pores can be tapered. Nozzles formed comprising pores having such structures permit aerosol generation at lower extrusion pressures, thereby allowing for decreased weight of aerosolization devices, increased efficiency, increased portability and increased battery life. The pore structures also allow for the use of thicker, more easily processed polymeric films in manufacturing while having a thinner, more efficient aerosolization area. The use of decreased extrusion pressures also results in increased uniformity in aerosol generation and improved reliability of other components.Type: ApplicationFiled: January 16, 2014Publication date: June 26, 2014Applicant: ARADIGM CORPORATIONInventors: RAJESH S. PATEL, SUDARSAN SRINIVASAN
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Publication number: 20140092927Abstract: A femtosecond laser based laser processing system having a femtosecond laser, frequency conversion optics, beam manipulation optics, target motion control, processing chamber, diagnostic systems and system control modules. The femtosecond laser based laser processing system allows for the utilization of the unique heat control in micromachining, and the system has greater output beam stability, continuously variable repetition rate and unique temporal beam shaping capabilities.Type: ApplicationFiled: December 9, 2013Publication date: April 3, 2014Applicant: IMRA AMERICA, INC.Inventors: Lawrence Shah, James M. Bovatsek, Alan Y. Arai, Tadashi Yamamoto, Rajesh S. Patel, Donald J. Harter
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Patent number: 8644356Abstract: A femtosecond laser based laser processing system having a femtosecond laser, frequency conversion optics, beam manipulation optics, target motion control, processing chamber, diagnostic systems and system control modules. The femtosecond laser based laser processing system allows for the utilization of the unique heat control in micromachining, and the system has greater output beam stability, continuously variable repetition rate and unique temporal beam shaping capabilities.Type: GrantFiled: September 12, 2012Date of Patent: February 4, 2014Assignee: Imra America, Inc.Inventors: Lawrence Shah, James M. Bovatsek, Alan Y. Arai, Tadashi Yamamoto, Rajesh S. Patel, Donald J. Harter
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Publication number: 20130003065Abstract: A femtosecond laser based laser processing system having a femtosecond laser, frequency conversion optics, beam manipulation optics, target motion control, processing chamber, diagnostic systems and system control modules. The femtosecond laser based laser processing system allows for the utilization of the unique heat control in micromachining, and the system has greater output beam stability, continuously variable repetition rate and unique temporal beam shaping capabilities.Type: ApplicationFiled: September 12, 2012Publication date: January 3, 2013Applicant: IMRA AMERICA, INC.Inventors: Lawrence SHAH, James M. BOVATSEK, Alan Y. ARAI, Tadashi YAMAMOTO, Rajesh S. PATEL, Donald J. HARTER
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Patent number: 8279903Abstract: A femtosecond laser based laser processing system having a femtosecond laser, frequency conversion optics, beam manipulation optics, target motion control, processing chamber, diagnostic systems and system control modules. The femtosecond laser based laser processing system allows for the utilization of the unique heat control in micromachining, and the system has greater output beam stability, continuously variable repetition rate and unique temporal beam shaping capabilities.Type: GrantFiled: February 11, 2011Date of Patent: October 2, 2012Assignee: Imra America, Inc.Inventors: Lawrence Shah, James M. Bovatsek, Alan Y. Arai, Tadashi Yamamoto, Rajesh S. Patel, Donald J. Harter
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Publication number: 20110253132Abstract: A nozzle comprising a thin, flexible substantially planar polymeric film having a plurality of pores with structures allowing for generation of an aerosol at reduced extrusion pressure is disclosed. The pores can comprise at least two sections, or steps, in which the thickness of the membrane is reduced in stepwise fashion, or the pores can be tapered. Nozzles formed comprising pores having such structures permit aerosol generation at lower extrusion pressures, thereby allowing for decreased weight of aerosolization devices, increased efficiency, increased portability and increased battery life. The pore structures also allow for the use of thicker, more easily processed polymeric films in manufacturing while having a thinner, more efficient aerosolization area. The use of decreased extrusion pressures also results in increased uniformity in aerosol generation and improved reliability of other components.Type: ApplicationFiled: April 18, 2011Publication date: October 20, 2011Inventors: RAJESH S. PATEL, Sudarsan Srinivasan
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Publication number: 20110139760Abstract: A femtosecond laser based laser processing system having a femtosecond laser, frequency conversion optics, beam manipulation optics, target motion control, processing chamber, diagnostic systems and system control modules. The femtosecond laser based laser processing system allows for the utilization of the unique heat control in micromachining, and the system has greater output beam stability, continuously variable repetition rate and unique temporal beam shaping capabilities.Type: ApplicationFiled: February 11, 2011Publication date: June 16, 2011Applicant: IMRA AMERICA, INC.Inventors: Lawrence SHAH, James M. BOVATSEK, Alan Y. ARAI, Tadashi YAMAMOTO, Rajesh S. PATEL, Donald J. HARTER
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Patent number: 7912100Abstract: A femtosecond laser based laser processing system having a femtosecond laser, frequency conversion optics, beam manipulation optics, target motion control, processing chamber, diagnostic systems and system control modules. The femtosecond laser based laser processing system allows for the utilization of the unique heat control in micromachining, and the system has greater output beam stability, continuously variable repetition rate and unique temporal beam shaping capabilities.Type: GrantFiled: December 19, 2008Date of Patent: March 22, 2011Assignee: IMRA America, Inc.Inventors: Lawrence Shah, James M. Bovatsek, Alan Y. Arai, Tadashi Yamamoto, Rajesh S. Patel, Donald J. Harter
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Publication number: 20090097514Abstract: A femtosecond laser based laser processing system having a femtosecond laser, frequency conversion optics, beam manipulation optics, target motion control, processing chamber, diagnostic systems and system control modules. The femtosecond laser based laser processing system allows for the utilization of the unique heat control in micromachining, and the system has greater output beam stability, continuously variable repetition rate and unique temporal beam shaping capabilities.Type: ApplicationFiled: December 19, 2008Publication date: April 16, 2009Applicant: IMRA America, Inc.Inventors: Lawrence SHAH, James M. Bovatsek, Alan Y. Arai, Tadashi Yamamoto, Rajesh S. Patel, Donald J. Harter
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Publication number: 20090050140Abstract: A nozzle comprising a thin, flexible substantially planar polymeric film having a plurality of pores with structures allowing for generation of an aerosol at reduced extrusion pressure is disclosed. The pores can comprise at least two sections, or steps, in which the thickness of the membrane is reduced in stepwise fashion, or the pores can be tapered. Nozzles formed comprising pores having such structures permit aerosol generation at lower extrusion pressures, thereby allowing for decreased weight of aerosolization devices, increased efficiency, increased portability and increased battery life. The pore structures also allow for the use of thicker, more easily processed polymeric films in manufacturing while having a thinner, more efficient aerosolization area. The use of decreased extrusion pressures also results in increased uniformity in aerosol generation and improved reliability of other components.Type: ApplicationFiled: October 15, 2007Publication date: February 26, 2009Inventors: Rajesh S. PATEL, Sudarsan Srinivasan
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Patent number: 7491909Abstract: A method for laser machining of material using a burst comprised of laser pulses. The method tailors the pulse width, pulse separation duration, wavelength and polarization of the multiple laser pulses included in a burst to maximize the positive effect of thermal and physical changes achieved by previous pulses that have impinged upon the machined material.Type: GrantFiled: March 31, 2004Date of Patent: February 17, 2009Assignee: IMRA America, Inc.Inventors: Tadashi Yamamoto, Donald J. Harter, Rajesh S. Patel, Alan Y. Arai
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Patent number: 7486705Abstract: A femtosecond laser based laser processing system having a femtosecond laser, frequency conversion optics, beam manipulation optics, target motion control, processing chamber, diagnostic systems and system control modules. The femtosecond laser based laser processing system allows for the utilization of the unique heat control in micromachining, and the system has greater output beam stability, continuously variable repetition rate and unique temporal beam shaping capabilities.Type: GrantFiled: March 31, 2004Date of Patent: February 3, 2009Assignee: IMRA America, Inc.Inventors: Lawrence Shah, James M Bovatsek, Alan Y Arai, Tadashi Yamamoto, Rajesh S. Patel, Donald J. Harter
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Patent number: 7316360Abstract: A nozzle comprising a thin, flexible substantially planar polymeric film having a plurality of pores with structures allowing for generation of an aerosol at reduced extrusion pressure is disclosed. The pores can comprise at least two sections, or steps, in which the thickness of the membrane is reduced in stepwise fashion, or the pores can be tapered. Nozzles formed comprising pores having such structures permit aerosol generation at lower extrusion pressures, thereby allowing for decreased weight of aerosolization devices, increased efficiency, increased portability and increased battery life. The pore structures also allow for the use of thicker, more easily processed polymeric films in manufacturing while having a thinner, more efficient aerosolization area. The use of decreased extrusion pressures also results in increased uniformity in aerosol generation and improved reliability of other components.Type: GrantFiled: March 23, 2004Date of Patent: January 8, 2008Assignee: Aradigm CorporationInventors: Rajesh S. Patel, Sudarsan Srinivasan
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Patent number: 6855909Abstract: A nozzle comprising a thin, flexible substantially planar polymeric film having a plurality of pores with structures allowing for generation of an aerosol at reduced extrusion pressure is disclosed. The pores can comprise at least two sections, or steps, in which the thickness of the membrane is reduced in stepwise fashion, or the pores can be tapered. Nozzles formed comprising pores having such structures permit aerosol generation at lower extrusion pressures, thereby allowing for decreased weight of aerosolization devices, increased efficiency, increased portability and increased battery life. The pore structures also allow for the use of thicker, more easily processed polymeric films in manufacturing while having a thinner, more efficient aerosolization area. The use of decreased extrusion pressures also results in increased uniformity in aerosol generation and improved reliability of other components.Type: GrantFiled: December 10, 2003Date of Patent: February 15, 2005Assignee: Aradigm CorporationInventors: Rajesh S. Patel, Sudarsan Srinivasan
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Publication number: 20040195373Abstract: A nozzle comprising a thin, flexible substantially planar polymeric film having a plurality of pores with structures allowing for generation of an aerosol at reduced extrusion pressure is disclosed. The pores can comprise at least two sections, or steps, in which the thickness of the membrane is reduced in stepwise fashion, or the pores can be tapered. Nozzles formed comprising pores having such structures permit aerosol generation at lower extrusion pressures, thereby allowing for decreased weight of aerosolization devices, increased efficiency, increased portability and increased battery life. The pore structures also allow for the use of thicker, more easily processed polymeric films in manufacturing while having a thinner, more efficient aerosolization area. The use of decreased extrusion pressures also results in increased uniformity in aerosol generation and improved reliability of other components.Type: ApplicationFiled: March 23, 2004Publication date: October 7, 2004Inventors: Rajesh S. Patel, Sundarsan Srinivasan
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Patent number: 6732954Abstract: A nozzle comprising a thin, flexible substantially planar polymeric film having a plurality of pores with structures allowing for generation of an aerosol at reduced extrusion pressure is disclosed. The pores can comprise at least two sections, or steps, in which the thickness of the membrane is reduced in stepwise fashion, or the pores can be tapered. Nozzles formed comprising pores having such structures permit aerosol generation at lower extrusion pressures, thereby allowing for decreased weight of aerosolization devices, increased efficiency, increased portability and increased battery life. The pore structures also allow for the use of thicker, more easily processed polymeric films in manufacturing while having a thinner, more efficient aerosolization area. The use of decreased extrusion pressures also results in increased uniformity in aerosol generation and improved reliability of other components.Type: GrantFiled: March 11, 2002Date of Patent: May 11, 2004Assignee: Aradigm CorporationInventors: Rajesh S. Patel, Sudarsan Srinivasan
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Patent number: 6689986Abstract: A nozzle comprising a thin, flexible substantially planar polymeric film having a plurality of pores with structures allowing for generation of an aerosol at reduced extrusion pressure is disclosed. The pores can comprise at least two sections, or steps, in which the thickness of the membrane is reduced in stepwise fashion, or the pores can be tapered. Nozzles formed comprising pores having such structures permit aerosol generation at lower extrusion pressures, thereby allowing for decreased weight of aerosolization devices, increased efficiency, increased portability and increased battery life. The pore structures also allow for the use of thicker, more easily processed polymeric films in manufacturing while having a thinner, more efficient aerosolization area. The use of decreased extrusion pressures also results in increased uniformity in aerosol generation and improved reliability of other components.Type: GrantFiled: October 26, 2001Date of Patent: February 10, 2004Assignee: Aradigm CorporationInventors: Rajesh S. Patel, Sudarsan Srinivasan
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Publication number: 20030222157Abstract: A nozzle comprising a thin, flexible substantially planar polymeric film having a plurality of pores with structures allowing for generation of an aerosol at reduced extrusion pressure is disclosed. The pores can comprise at least two sections, or steps, in which the thickness of the membrane is reduced in stepwise fashion, or the pores can be tapered. Nozzles formed comprising pores having such structures permit aerosol generation at lower extrusion pressures, thereby allowing for decreased weight of aerosolization devices, increased efficiency, increased portability and increased battery life. The pore structures also allow for the use of thicker, more easily processed polymeric films in manufacturing while having a thinner, more efficient aerosolization area. The use of decreased extrusion pressures also results in increased uniformity in aerosol generation and improved reliability of other components.Type: ApplicationFiled: March 11, 2002Publication date: December 4, 2003Inventors: Rajesh S. Patel, Sudarsan Srinivasan