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William J Ossmann

from Acton, MA
Age ~66

William Ossmann Phones & Addresses

  • 28 Lothrop Rd, Acton, MA 01720 (978) 635-0544
  • Amston, CT
  • Woburn, MA
  • 28 Lothrop Rd, Acton, MA 01720

Work

Position: Executive, Administrative, and Managerial Occupations

Education

Degree: Bachelor's degree or higher

Industries

Medical Devices

Resumes

Resumes

William Ossmann Photo 1

Engineer At Philips Healthcare

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Location:
Greater Boston Area
Industry:
Medical Devices

Business Records

Name / Title
Company / Classification
Phones & Addresses
William J. Ossmann
Treasurer
ACTON GROUP OF CITIZENS, INC
30 Mohawk Dr, Acton, MA 01720
28 Lothrop Rd, Acton, MA 01720

Publications

Us Patents

Aperture Control And Apodization In A Micro-Machined Ultrasonic Transducer

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US Patent:
6381197, Apr 30, 2002
Filed:
Mar 8, 2000
Appl. No.:
09/521393
Inventors:
Bernard J Savord - Andover MA, 01810
William J Ossmann - Acton MA, 01720
Jie Chen - North Andover MA, 01845
Michael P Anthony - Andover MA, 01810
Turuvekere R Gururaja - Parkvale Drive Discovery Bay, HK
Stephen M Grenon - Hillsborough NC, 27278
International Classification:
H04R 1700
US Classification:
367178
Abstract:
A micro-machined ultrasonic transducer (MUT) having aperture, elevation and apodization controlled by apparatus located on the same substrate as the transducer, or by bias voltage control applied to MUT elements, allows for an efficient and compact ultrasonic probe. The control apparatus may take the form of field effect transistors (FETs), micro-machined relays, or doped regions on the substrate, or any other apparatus that may be located on the same substrate as that of the transducer, or by bias voltage sources connected to the MUT elements.

Variable Multi-Dimensional Apodization Control For Ultrasonic Transducers

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US Patent:
6527723, Mar 4, 2003
Filed:
Jun 26, 2001
Appl. No.:
09/892008
Inventors:
William J. Ossmann - Acton MA
McKee D. Poland - Andover MA
Assignee:
Koninklijke Philips Electronics N.V. - Eindhoven
International Classification:
A61B 800
US Classification:
600459, 600447, 600437, 73602, 128916, 367138, 367157
Abstract:
Variable multi-dimensional apodization control for an ultrasonic transducer array is disclosed. The variable multi-dimensional apodization control is applicable to both piezoelectric based transducers and to MUT based transducers and allows control of the apodization profile of an ultrasonic transducer array having elements arranged in more than one dimension.

Acoustic Imaging Systems Adaptable For Use With Low Drive Voltages

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US Patent:
6685647, Feb 3, 2004
Filed:
Jun 28, 2001
Appl. No.:
09/894709
Inventors:
Bernard J. Savord - Andover MA
William J. Ossmann - Acton MA
Assignee:
Koninklijke Philips Electronics N.V. - Eindhoven
International Classification:
A61B 814
US Classification:
600459
Abstract:
Acoustic imaging systems are provided. A representative acoustic imaging system includes a transducer that incorporates a backing and an acoustic element extending from the backing. The acoustic element includes a piezoelectric element and a de-matching layer. The de-matching layer is arranged between the backing and the piezoelectric element and exhibits an acoustic impedance greater than that of the piezoelectric element. The piezoelectric element exhibits a thickness that is less than one-half of a wavelength to be generated by the piezoelectric element. Methods also are provided.

Artifact Elimination In Time-Gated Anatomical Imaging

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US Patent:
7103400, Sep 5, 2006
Filed:
Nov 8, 2002
Appl. No.:
10/291060
Inventors:
William J. Ossmann - Acton MA, US
McKee Dunn Poland - Andover MA, US
Xiang-Ning Li - Mill Creek WA, US
Olivier Gerard - Viroflay, FR
Assignee:
Koninklijke Philips Electronics, N.V. - Eindhoven
International Classification:
A61B 5/05
US Classification:
600428, 600407, 600413, 600437
Abstract:
A method for anatomical imaging includes acquiring image data representative of three-dimensional volume segments of an image volume of interest in a subject. The image data are acquired in synchronism with corresponding physiological cycles of the subject. Each volume segment contains image data distributed in three dimensions. Acquiring image data includes selecting a sequence of scan lines for each respective volume segment configured to minimize an occurrence of motion artifacts throughout the image volume. The image data representative of the volume segments is combined to produce a representation of a three-dimensional anatomical image of the image volume.

Ultrasound Transducer

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US Patent:
7135809, Nov 14, 2006
Filed:
Jul 31, 2001
Appl. No.:
09/919232
Inventors:
William J. Ossmann - Acton MA, US
Assignee:
Koninklijke Philips Electronics, N.V. - Eindhoven
International Classification:
H01L 41/08
US Classification:
310335, 310334, 12866203
Abstract:
Acoustic imaging systems are provided. A preferred system includes a protective cover configured to mate with a transducer body. The transducer includes a two-dimensional transducer element matrix array formed by a plurality of individually controllable transducer elements. The protective cover is superposed above the two-dimensional matrix array and is transparent to incident acoustic energy. Preferably, the protective cover is shaped to reduce patient discomfort and repetitive motion injuries to sonographers. Alternative embodiments comprise a shaped two-dimensional transducer element matrix array. Methods for improved ultrasound imaging are also provided.

Ultrasound Transducer

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US Patent:
7307374, Dec 11, 2007
Filed:
Jan 24, 2006
Appl. No.:
11/338024
Inventors:
William J. Ossmann - Acton MA, US
Assignee:
Koninklijke Philips Electronics N.V. - Eindhoven
International Classification:
H01L 41/08
US Classification:
310335, 310334, 12866203
Abstract:
Acoustic imaging systems are provided. A preferred system includes a protective cover configured to mate with a transducer body. The transducer includes a two-dimensional transducer element matrix array formed by a plurality of individually controllable transducer elements. The protective cover is superposed above the two-dimensional matrix array and is transparent to incident acoustic energy. Preferably, the protective cover is shaped to reduce patient discomfort and repetitive motion injuries to sonographers. Alternative embodiments comprise a shaped two-dimensional transducer element matrix array. Methods for improved ultrasound imaging are also provided.

Method For Designing Ultrasonic Transducers With Acoustically Active Integrated Electronics

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US Patent:
7439656, Oct 21, 2008
Filed:
Jun 7, 2004
Appl. No.:
10/559214
Inventors:
William Ossmann - Acton MA, US
Assignee:
Koninklijke Philips Electronics N.V. - Eindhoven
International Classification:
H01L 41/08
US Classification:
310334, 310327
Abstract:
Ultrasonic transducer including a multi-layer transformer arranged between a backing block and piezoelectric layer on each of which at least one matching layer is arranged. The transformer includes a substrate having an electronic circuit, one or more acoustically active layers and an interconnect layer interposed between the piezoelectric layer and the substrate. The properties of the substrate, each acoustically active layer and the interconnect layer are selected and then the acoustic impedance of the transformer at a side of the piezoelectric layer adjacent the transformer is determined. The properties are then varied, e. g. , using a computer simulation, until values for these properties are obtained which provide a desired acoustic performance characteristic at the side of the piezoelectric layer adjacent the transformer. The electronic circuit is thus considered in the determination of the acoustic impedance of the transformer.

Wide Bandwidth Matrix Transducer With Polyethylene Third Matching Layer

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US Patent:
8030824, Oct 4, 2011
Filed:
Jul 19, 2006
Appl. No.:
12/063294
Inventors:
Heather Knowles - Devens MA, US
William Ossmann - Acton MA, US
Martha Wilson - Andover MA, US
Assignee:
Koninklijke Philips Electronics N.V. - Eindhoven
International Classification:
H01L 41/083
US Classification:
310334, 310335
Abstract:
A third matching layer () affording wide bandwidth for an ultrasound matrix probe is made of polyethylene, and may extend downwardly to surround the array (S) and attach to the housing to seal the array (S).
William J Ossmann from Acton, MA, age ~66 Get Report