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Greenleaf, US

James F. Greenleaf, Rochester, MN US

Patent application numberDescriptionPublished
20080302187Vibroacoustic System for Vibration Testing - Forces are applied to a device under test and its mechanical response is measured by a laser vibrometer (12-11-2008
20100010346System and Method For Non-Invasively Measuring Tissue Viscoelasticity Using Surface Waves - A system and method for assessing tissue health based on the viscoelastic properties of the tissue. Surface waves are induced in the tissue and their propagation characteristics are then measured. The tissue viscoelastic properties are then determined from the surface wave measurements using a surface model.01-14-2010
20110063950VIBRATION GENERATION AND DETECTION IN SHEAR WAVE DISPERSION ULTRASOUND VIBROMETRY WITH LARGE BACKGROUND MOTIONS - A method for measuring a mechanical property of a subject includes using an ultrasonic transducer to apply ultrasonic vibration pulses to a vibration origin in the subject in an on-off time sequence in order to impart a harmonic motion at a prescribed frequency to the subject, and when the vibration pulses are off, preferably using the same transducer to apply ultrasonic detection pulses to a motion detection point and to receive echo signals therefrom in order to sense the harmonic motion on the subject at the motion detection point The ultrasonic detection pulses are interspersed with the vibration pulses and can be applied in a non-uniform manner From the received ultrasonic echo signals, a harmonic signal is detected and a characteristic such as amplitude or phase of the detected harmonic signal is calculated using a Kalman filter or interpolation.03-17-2011

Patent applications by James F. Greenleaf, Rochester, MN US

Richard J. Greenleaf, Manchester, MA US

Patent application numberDescriptionPublished
20110067538Flexible grip die-alignment arrangement - A die press assembly for producing punched parts from a travelling web of material, the die press comprising: a lower die shoe securing a compound punch holder plate thereon, the compound punch holder biasedly gripping a compound punch tool therein, the lower die shoe also supporting a reciprocably movable stripper holder plate, wherein the compound punch extends slideably through a biasedly gripped stripper holder tool in the stripper holder plate; an upper punch holder movable with respect to the lower die shoe, the upper punch holder having a center punch holder plate which biasedly grips a center punch tool therewithin; and a die holder plate fixedly attached to the center punch holder plate with a biasedly gripped die tool slideably enclosing the center punch, wherein each of the biasedly gripped tools are in co-axial alignment in distortable bores in their respective plates.03-24-2011

Richard J. Greenleaf, Manchester By-The-Sea, MA US

Patent application numberDescriptionPublished
20090044671Punch press shedder pin knockout arrangement - A punch press arrangement for the manufacture of a stamped-out part from a sheet of “part” material, comprising a punch member for shaping a part from the part material, and a first shedder pin arranged in the punch member to plastically deform against the part being created to prevent “pulling” and retention of the stamped out part on the punch member on the punch member's return stroke.02-19-2009

Todd David Greenleaf, Salem, VA US

Patent application numberDescriptionPublished
20080246492Processing tantalum capacitors on assembled PWAs to yield low failure rate - A method of conditioning tantalum capacitors on printed wire assemblies is disclosed. According to the method, each of the capacitors on an assembly is subjected to the same conditioning level during testing. To condition the tantalum capacitors, surge currents are induced in the capacitors in a controlled manner as a means of aging the capacitors so that they can be used without de-rating rating with low failure rates. The level of voltage, timing and current levels are set by circuitry used to perform the testing. The same circuits that are used with the capacitors in a system application are also used for the tantalum capacitor test circuit during the conditioning process.10-09-2008

William J. Greenleaf, Belmont, MA US

Patent application numberDescriptionPublished
20100036110METHODS AND COMPOSITIONS FOR CONTINUOUS SINGLE-MOLECULE NUCLEIC ACID SEQUENCING BY SYNTHESIS WITH FLUOROGENIC NUCLEOTIDES - The invention features compositions, methods, and systems for single-molecule sequencing of nucleic acids based on the continuous measurement of the incorporation of fluorogenic nucleotides in microreactors. In particular, the invention features fluorogenic compounds for use in nucleic acid sequencing. The invention provides numerous advantages over previous systems such as unambiguous determination of sequence, continuous sequencing, long read lengths, low overall cost, and ease of sample preparation.02-11-2010
20100227327METHODS AND COMPOSITIONS FOR CONTINUOUS SINGLE-MOLECULE NUCLEIC ACID SEQUENCING BY SYNTHESIS WITH FLUOROGENIC NUCLEOTIDES - Disclosed herein are methods and compositions for continuous single-molecule nucleic acid sequencing by synthesis with fluorogenic nucleotides.09-09-2010