Patents Represented by Attorney, Agent or Law Firm Jefferson Perkins
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Patent number: 7138285Abstract: A method of performing quantum well intermixing in a semiconductor device structure uses a sacrificial part of a cap layer, that is removed after QWI processing, to restore the cap surface to a condition in which high performance contacts are still possible.Type: GrantFiled: May 21, 2003Date of Patent: November 21, 2006Assignee: Intense LimitedInventors: Stephen Najda, Stewart Duncan McDougall, Xuefeng Liu
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Patent number: 7121872Abstract: In an electrical connector suitable for a multistranded insulated conductor, a frustoconical collar is so dimensioned that it will exhibit physical interference with a housing bore into which the conductor and the collar are inserted. As the collar is advanced into the bore, fingers of the collar more tightly grip the external surface of the conductor. A cap affixes the conductor and collar to the housing to complete the connection.Type: GrantFiled: May 31, 2005Date of Patent: October 17, 2006Assignee: Centerpin Technology Inc.Inventor: Rip Hanks
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Patent number: 7097576Abstract: A bearing assembly is at least partly disposed within the hollow stem or handle of a sports racquet. A plurality of curvilinear channels are disposed at different lateral locations in a direction which is at a substantial angle to the longitudinal axis of the racquet. For each channel there are provided a pair of ferrules through which string segments are strung from, and then back to, the string bed. Preferably the ferrules receive ends of tubes through which the string segments are strung. One embodiment receives most of the main strings of the sports racquet, while another embodiment receives all of them. In one embodiment the bearing assembly also forms the end cap of the racquet handle.Type: GrantFiled: February 8, 2005Date of Patent: August 29, 2006Assignee: EF Composite Technologies, L.P.Inventor: Rafael G. Filippini
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Patent number: 6832444Abstract: A license plate cover has a transparent or translucent frame, an annular insert and an elastomeric gasket. The frame includes a periphery and an inner side for disposal adjacent to a license plate. The inner side includes an elongate annular channel near the periphery of the frame. The annular insert is disposed adjacent the flat bottom of the channel. An elastomeric gasket is disposed on top of the insert in the channel.Type: GrantFiled: December 10, 2002Date of Patent: December 21, 2004Inventor: David F. MacNeil
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Patent number: 6764417Abstract: A sports racquet strung with a bypass string pattern. The sports racquet includes a frame having a first side and an opposed second side. The second side of the frame has a plurality of spaced apart string anchoring points. A string bed including a string having a plurality of string segments each strung between the first side and the second side of the frame using the string anchoring points. The string bed includes first and second string segments that are adjacent each other on the string, substantially parallel to each other in the string bed, but are spaced apart from each other in the string bed by at least two other string segments strung substantially parallel to the first and second string segments.Type: GrantFiled: May 17, 2002Date of Patent: July 20, 2004Assignee: EF Composite Technologies, L.P.Inventor: Rafael G. Filippini
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Patent number: 6735819Abstract: A vehicle floor mat affixation device includes a noncircular shaped body with an axial extending connector. The connector secures the affixation device to the vehicle floor. A reverse face of the affixation device includes a panel of releasable fastening material that is designed to mate with a similar panel of releasable fastening material in the vehicle floor mat. The present invention resists affixation device pull-out as well as shear forces applied to the mat with respect to the carpeting on which the mat is placed, but nonetheless permits easy removal and replacement of the vehicle floor mat and of the affixation devices without tools.Type: GrantFiled: March 29, 2002Date of Patent: May 18, 2004Inventors: David S. Iverson, David F. MacNeil
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Patent number: 6736674Abstract: The subject invention pertains to a method and connector for coupling to a cable having a center conductor surrounded by a layer of material, further surrounded by one or more conductor wires. In a specific embodiment, the subject coupler can be used with a cable for producing light via electroluminensce.Type: GrantFiled: July 17, 2002Date of Patent: May 18, 2004Assignee: Centerpin Technology, Inc.Inventors: Donald R. Korte, Rip Hanks
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Patent number: 6719884Abstract: A method of manufacturing an optical device, wherein the device body portion from which the device is to be made includes at least one Quantum Well, the method including the step of causing an impurity material including copper to intermix with the Quantum Well.Type: GrantFiled: January 15, 2002Date of Patent: April 13, 2004Assignee: Intense Photonics LimitedInventors: John Haig Marsh, Craig James Hamilton, Olek Peter Kowalski, Stuart Duncan McDougall, Xuefeng Liu, Bo-Cang Qui
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Patent number: 6717970Abstract: There is disclosed an improved laser device (10), comprising a semiconductor laser diode. The invention provides laser device (10) comprising: at least two lasing regions (12,14); an interference region (16) into which an output of each lasing region (12,14) is coupled; and an output region (118) extending from the interference region (116) to an output (20) of the device (10).Type: GrantFiled: February 20, 2001Date of Patent: April 6, 2004Assignee: The University Court of the University of GlasgowInventors: John Haig Marsh, Craig James Hamilton
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Patent number: 6717971Abstract: There is disclosed an improved semiconductor laser device (10;10a), eg a single mode index guided laser diode. The device (10;10a) comprises: an optical waveguide (15;15a); at least one electrical contact (20;20a) extending along part of a length of the waveguide (15;15a); and wherein the at least one electrical contact (20;20a) is shorter than the optical waveguide (15;15a). By this arrangement a part or parts of the waveguide (15;15a) are not electrically pumped, in use.Type: GrantFiled: February 20, 2001Date of Patent: April 6, 2004Assignee: The University Court of The University of GlasgowInventors: John Haig Marsh, Craig James Hamilton
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Patent number: 6705884Abstract: The subject invention relates to an electrical connector for coupling to an insulated electrical conductor or a coaxial cable of the type having an inner conductor enclosed in an inner concentric insulation and having a generally concentric conductive sheath therearound and an outer insulation enclosing the conductive sheath. The subject connector can have a housing having an electrically conductive portion and a bore therein. The subject connector can also have an electrically conductive pin mounted in the housing with one end protruding axially into the housing bore. A second end of the conductive pin can extend in an opposite direction within a second housing bore. The electrically conductive center pin can have a hollow portion extending thereinto from the protruding end and can have an annular sharpened edge on the protruding end. One or more slits can extend along the side of the center pin from the protruding end to form a plurality of center pin segments.Type: GrantFiled: August 16, 2000Date of Patent: March 16, 2004Assignee: Centerpin Technology, Inc.Inventor: Dale C. McCarthy
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Patent number: 6671300Abstract: There is disclosed an improved optical device (10;10a), eg comprising a semiconductor optically active or optoelectronic devices such as lasers, modulators, amplifiers, switching structures, or the like, mounted on a heatsink (28;28a) The invention provides an optically active device (10;10a) comprising a device body (12;12a) having an active region (14;14a) and an optically passive region(s) (20;22) provided at one or more ends (24,26;26a) of the active region (14;14a); and a heatsink (28;28a); the device body (12;12a) and heatsink (28;28a) being retained in thermal association with one another such that a first end of the at least one of the optically passive region(s) (20,22;22a) adjacent an end of the active region (14;14a) is provided within an area of the heatsink (28;28a), and a second end of the said at least one optically passive region(s) (20,22;22a) is provided outwith the area of the heatsink (28;28a).Type: GrantFiled: February 20, 2001Date of Patent: December 30, 2003Assignee: The University Court of the University of GlasgowInventors: John Haig Marsh, Craig James Hamilton
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Patent number: 6661418Abstract: A system for generating an animated image of at least the head of a character which is speaking, with the face of the character having visible articulation or expression matching the words being spoken, is described. An input stream of marked up text comprising text to be spoken by the animated character and instructions representing behavioral features are combined in a modified text stream which includes randomization instructions to create random behavioural features. The modified text stream is processed to produce an audio stream representing the text being spoken and a sequence of phonemes corresponding to portions of the audio signal. The phoneme stream is mapped by phoneme to viseme mapping means to produce a stream of morph targets. The morph targets are, in turn, combined with further random movement instructions and these are then processed in an animation module to generate an animated image of at least the character's head.Type: GrantFiled: January 22, 2001Date of Patent: December 9, 2003Assignee: Digital Animations LimitedInventors: Robert McMillan, Matthew Caryl, Christopher Ball
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Patent number: 6657194Abstract: At a face of a silicon semiconductor substrate tilted about one degree from a [100] orientation, a readout integrated circuit (ROIC) is implemented, specially designed and fabricated for direct epitaxial growth. Layers of II-VI semiconductor material, preferably including layers of HgCdTe of different bandgaps, are successively and monolithically grown on the face by molecular beam epitaxy (MBE) within a window masking the face and then patterned and wet-etched to create mesas of two-color detector elements in an array. Preferably a beginning buffer layer of CdTe is grown to minimize crystalline mismatch between the Si and the HgCdTe. Sloped sidewalls of the mesas ensure good step coverage of the conductive interconnects from the detector elements to the ROIC.Type: GrantFiled: April 13, 2001Date of Patent: December 2, 2003Assignee: EPIR Technologies, Inc.Inventors: Renganathan Ashokan, Paul Boieriu, Yuanping Chen, Jean-Pierre Faurie, Sivalingam Sivananthan
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Patent number: 6652173Abstract: A ticket dispensing mechanism (40) includes a drive (42) receiving sheet material (24) from a supply (22). The drive advances the sheet material. A printer (48) prints ticket information on the sheet material as it is advanced by the drive thereby to form a printed ticket. A retaining mechanism (64) receives the printed ticket advanced by the drive and holds the printed ticket in a manner such that the leading end of the next ticket printed contacts and ejects the held ticket prior to itself being held by the retaining mechanism.Type: GrantFiled: July 10, 2001Date of Patent: November 25, 2003Assignee: Spielo Manufacturing IncorporatedInventors: Calvin Duke Martini, Eugene Anthony Helmetsie, Paul Chiasson
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Patent number: 6651400Abstract: The present invention discloses a connector used to join two or more panels having a foam core and having a cavity defined in a edge thereof. The connector includes a connector body having at least two attachment heads which are dimensioned to fit snugly within the corresponding cavities bounded by internal sidewalls defined in the foam core. Barbs provided on each attachment head are configured to pierce the internal sidewalls of the panels and inhibit withdrawal of the attachment head from the cavity defined in the foam core.Type: GrantFiled: October 18, 2001Date of Patent: November 25, 2003Assignee: Rapid Displays, Inc.Inventor: Terry J. Murphy
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Patent number: 6632684Abstract: There is disclosed an improved method of manufacturing of an optical device (40), particularly semiconductor optoelectronic devices such as laser diodes, optical modulators, optical amplifiers, optical switches, and optical detectors. The invention provides a method of manufacturing optical device (40), a device body portion (15) from which the device (40) is to be made including a Quantum Well (QW) structure (30), the method including the step of: processing the device body portion (15) so as to create extended defects at least in a portion (53) of the device portion (5). Each extended defect is a structural defect comprising a plurality of adjacent “point” defects.Type: GrantFiled: February 20, 2001Date of Patent: October 14, 2003Assignee: The University Court of The University of GlasgowInventors: John Haig Marsh, Craig James Hamilton, Stuart Duncan McDougall, Olek Peter Kowalski
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Patent number: D529852Type: GrantFiled: March 10, 2006Date of Patent: October 10, 2006Inventor: Allan R. Thom
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Patent number: D529853Type: GrantFiled: March 10, 2006Date of Patent: October 10, 2006Inventor: Allan R. Thom
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Patent number: D530250Type: GrantFiled: February 28, 2006Date of Patent: October 17, 2006Inventor: Allan R. Thom