Patents by Inventor Daniel Hohm
Daniel Hohm 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: 11446086Abstract: Methods, systems and apparatus are disclosed for delivery of pulsed treatment radiation by employing a pump radiation source generating picosecond pulses at a first wavelength, and a frequency-shifting resonator having a losing medium and resonant cavity configured to receive the picosecond pulses from the pump source at the first wavelength and to emit radiation at a second wavelength in response thereto, wherein the resonant cavity of the frequency-shifting resonator has a round trip time shorter than the duration of the picosecond pulses generated by the pump radiation source. Methods, systems and apparatus are also disclosed for providing beam uniformity and a sub-harmonic resonator.Type: GrantFiled: September 4, 2020Date of Patent: September 20, 2022Assignee: CYNOSURE, LLCInventors: Mirko Georgiev Mirkov, Daniel Hohm, Christian Hoffman, Rafael Armando Sierra
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Publication number: 20210038305Abstract: Methods, systems and apparatus are disclosed for delivery of pulsed treatment radiation by employing a pump radiation source generating picosecond pulses at a first wavelength, and a frequency-shifting resonator having a losing medium and resonant cavity configured to receive the picosecond pulses from the pump source at the first wavelength and to emit radiation at a second wavelength in response thereto, wherein the resonant cavity of the frequency-shifting resonator has a round trip time shorter than the duration of the picosecond pulses generated by the pump radiation source. Methods, systems and apparatus are also disclosed for providing beam uniformity and a sub-harmonic resonator.Type: ApplicationFiled: September 4, 2020Publication date: February 11, 2021Applicant: CYNOSURE, LLCInventors: Mirko Georgiev Mirkov, Daniel Hohm, Christian Hoffman, Rafael Armando Sierra
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Patent number: 10285757Abstract: Methods, systems and apparatus are disclosed for delivery of pulsed treatment radiation by employing a pump radiation source generating picosecond pulses at a first wavelength, and a frequency-shifting resonator having a lasing medium and resonant cavity configured to receive the picosecond pulses from the pump source at the first wavelength and to emit radiation at a second wavelength in response thereto, wherein the resonant cavity of the frequency-shifting resonator has a round trip time shorter than the duration of the picosecond pulses generated by the pump radiation source. Methods, systems and apparatus are also disclosed for providing beam uniformity and a sub-harmonic resonator.Type: GrantFiled: March 17, 2014Date of Patent: May 14, 2019Assignee: CYNOSURE, LLCInventors: John Robertson, Daniel Hohm, Christian Hoffman
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Publication number: 20180026417Abstract: Apparatuses and methods are disclosed for applying laser energy having desired pulse characteristics, including a sufficiently short duration and/or a sufficiently high energy for the photomechanical treatment of skin pigmentations and pigmented lesions, both naturally-occurring (e.g., birthmarks), as well as artificial (e.g., tattoos). The laser energy may be generated with an apparatus having a resonator with the capability of switching between a modelocked pulse operating mode and an amplification operating mode. The operating modes are carried out through the application of a time-dependent bias voltage, having waveforms as described herein, to an electro-optical device positioned along the optical axis of the resonator.Type: ApplicationFiled: September 29, 2017Publication date: January 25, 2018Inventors: Rafael A. Sierra, Mirko Georgiev Mirkov, Daniel Hohm, John Robertson, Christian Hoffman, R. Shaun Welches
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Publication number: 20150180193Abstract: Apparatuses and methods are disclosed for applying laser energy having desired pulse characteristics, including a sufficiently short duration and/or a sufficiently high energy for the photomechanical treatment of skin pigmentations and pigmented lesions, both naturally-occurring (e.g., birthmarks), as well as artificial (e.g., tattoos). The laser energy may be generated with an apparatus having a resonator with the capability of switching between a modelocked pulse operating mode and an amplification operating mode. The operating modes are carried out through the application of a time-dependent bias voltage, having waveforms as described herein, to an electro-optical device positioned along the optical axis of the resonator.Type: ApplicationFiled: March 15, 2013Publication date: June 25, 2015Inventors: Rafael A. Sierra, Richard Shaun Welches, Mirko Georgiev Mirkov, Daniel Hohm
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Publication number: 20150005759Abstract: In part, the disclosure relates to an electromagnetic current displacement apparatus that includes one or more magnetic field sources and an alternating current source. The apparatus includes current delivery electrodes that may be part of a cuff, a hand held device, or individual electrode pads suitable for temporary fixation to skin. In one embodiment, an alternating current is transcutaneously delivered using skin contacting electrodes sized and arranged to avoid hotspots and provide a uniform delivery of the current. In turn, current attractors and repulsors can be arranged on the skin or in a suitable device to push or pull sections of the current that is disposed below such elements. Magnetic fields can be applied and focused to the regions through which the current passes, effectively pushing the current deeper into a target region below the surface of the skin.Type: ApplicationFiled: March 14, 2014Publication date: January 1, 2015Applicant: CYNOSURE, INC.Inventors: Richard Shaun Welches, Daniel Hohm
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Publication number: 20140321484Abstract: Methods, systems and apparatus are disclosed for delivery of pulsed treatment radiation by employing a pump radiation source generating picosecond pulses at a first wavelength, and a frequency-shifting resonator having a lasing medium and resonant cavity configured to receive the picosecond pulses from the pump source at the first wavelength and to emit radiation at a second wavelength in response thereto, wherein the resonant cavity of the frequency-shifting resonator has a round trip time shorter than the duration of the picosecond pulses generated by the pump radiation source. Methods, systems and apparatus are also disclosed for providing beam uniformity and a sub-harmonic resonator.Type: ApplicationFiled: March 17, 2014Publication date: October 30, 2014Applicant: CYNOSURE, INC.Inventors: Rafael Armando Sierra, John Robertson, Daniel Hohm, Christian Hoffman, Mirko Georgiev Mirkov
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Patent number: 7929579Abstract: Apparatuses and methods are disclosed for applying laser energy having desired pulse characteristics, including a sufficiently short duration and/or a sufficiently high energy for the photomechanical treatment of skin pigmentations and pigmented lesions, both naturally-occurring (e.g., birthmarks), as well as artificial (e.g., tattoos). The laser energy may be generated with an apparatus having a resonator with the capability of switching between a modelocked pulse operating mode and an amplification operating mode. The operating modes are carried out through the application of a time-dependent bias voltage, having waveforms as described herein, to an electro-optical device positioned along the optical axis of the resonator.Type: GrantFiled: January 4, 2010Date of Patent: April 19, 2011Assignee: Cynosure, Inc.Inventors: Daniel Hohm, Mirko Mirkov, Richard Shaun Welches, Rafael Armando Sierra
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Publication number: 20100296531Abstract: Apparatuses and methods are disclosed for applying laser energy having desired pulse characteristics, including a sufficiently short duration and/or a sufficiently high energy for the photomechanical treatment of skin pigmentations and pigmented lesions, both naturally-occurring (e.g., birthmarks), as well as artificial (e.g., tattoos). The laser energy may be generated with an apparatus having a resonator with the capability of switching between a modelocked pulse operating mode and an amplification operating mode. The operating modes are carried out through the application of a time-dependent bias voltage, having waveforms as described herein, to an electro-optical device positioned along the optical axis of the resonator.Type: ApplicationFiled: January 4, 2010Publication date: November 25, 2010Applicant: Cynosure, Inc.Inventors: Daniel Hohm, Mirko Mirkov, Richard Shaun Welches, Rafael Armando Sierra
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Publication number: 20090076489Abstract: A laser surgical method is disclosed including: providing a laser surgical device including a handpiece including: an optical delivery component that transmits laser energy from a source to a treatment volume; and an accelerometer configured to provide information indicative of the position of the handpiece. The method includes using the handpiece to transmit laser energy from the source to a plurality of positions within the treatment volume; using the accelerometer, providing information indicative of the position of the handpiece; determining information indicative of an amount of energy delivered at each of the plurality of positions within the treatment volume based on the information indicative of the position of the handpiece, and displaying a graphical representation indicative of the amount of energy delivered at each of the plurality of positions within the treatment volume.Type: ApplicationFiled: June 9, 2008Publication date: March 19, 2009Inventors: Richard Shaun Welches, James Henry Boll, Mirko Mirkov, Rafael Armando Sierra, Daniel Hohm
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Publication number: 20090076488Abstract: A laser surgical method is disclosed including: providing a laser surgical device including a handpiece including: an optical delivery component that transmits laser energy from a source to a treatment volume; and an accelerometer configured to provide information indicative of the position of the handpiece. The method includes using the handpiece to transmit laser energy from the source to a plurality of positions within the treatment volume; using the accelerometer, providing information indicative of the position of the handpiece; determining information indicative of an amount of energy delivered at each of the plurality of positions within the treatment volume based on the information indicative of the position of the handpiece, and displaying a graphical representation indicative of the amount of energy delivered at each of the plurality of positions within the treatment volume.Type: ApplicationFiled: June 9, 2008Publication date: March 19, 2009Inventors: Richard Shaun WELCHES, James Henry Boll, Mirko Mirkov, Rafael Armando Sierra, Daniel Hohm
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Publication number: 20050140142Abstract: The invention in one embodiment is an improved variable speed engine/generator set with an integrated power conditioning system and control method including load shedding to generate high quality AC power with improved fuel efficiency and reduced emissions. The variable speed generator control scheme allows for load adaptive speed control of engine and generator field. The transformerless power inverter topology and control method provides the necessary output frequency, voltage and/or current waveform regulation, harmonic distortion rejection, and provides for single phase, or unbalanced loading.Type: ApplicationFiled: February 25, 2005Publication date: June 30, 2005Applicant: YOUTILITY, INC.Inventors: Richard Welches, Daniel Hohm, Jian Wen