Patents Represented by Attorney, Agent or Law Firm Jagtiani & Associates
  • Patent number: 6365237
    Abstract: In one embodiment, the present invention provides a microlens having very small focal length. The present invention also provides a non-planar microstructure having a covering layer which is slowly oxidizing or substantially free of oxygen. The present invention also provides methods for forming such microlenses and microstructures. In addition, the present invention provides a VCSEL which includes one or more non-planar microstructures of the present invention.
    Type: Grant
    Filed: July 24, 2000
    Date of Patent: April 2, 2002
    Assignee: University of New Mexico
    Inventors: Gregory M. Peake, Stephen D. Hersee, Andrew M. Sarangan
  • Patent number: 6360040
    Abstract: An improved highly doped waveguide is provided which comprises a waveguide employing an Er dopant and Pr sensitizer ions. The present invention also provides a method of efficient coupling from an optical source into a waveguide using a rotated optical element.
    Type: Grant
    Filed: May 23, 2000
    Date of Patent: March 19, 2002
    Assignee: University of New Mexico
    Inventors: Balaji Srinivasan, Ravinder K. Jain, Jason David Tafoya
  • Patent number: 6349600
    Abstract: The present invention provides a device and method for determining the stable speeds for a rotating milling tool by non-cuttingly exciting the milling tool, by vibrating the milling tool, and measuring how the milling tool is excited. The present invention also provides a device and method for determining the stable speeds for a lathe tool by non-cuttingly exciting the lathe tool, by vibrating the tool using an excitation device mounted on a rotating lathe test bar, and measuring how the lathe tool is excited.
    Type: Grant
    Filed: December 16, 1999
    Date of Patent: February 26, 2002
    Assignee: The Government of the United States of America, as represented by the Secretary of Commerce
    Inventors: Matthew A. Davies, Brian Dutterer, Jon R. Pratt
  • Patent number: 6341889
    Abstract: With a liquid ejection apparatus where a liquid-transporting body is attached to an agitator shaft, the liquid-transporting body is revolved about the agitator shaft, with the rotational speed being changed in accordance with a change in liquid depth. Hence ejection liquid ejected from an upper opening of the liquid-transporting body over a large ejection distance and in sufficient volume, is distributed onto the inner surface of the tank and/or into the space above the liquid surface, thereby washing the inner surface of the tank, maintaining the heat transfer area, dispersing a foam layer on the liquid surface, and promoting evaporation of liquid in the tank.
    Type: Grant
    Filed: February 18, 2000
    Date of Patent: January 29, 2002
    Assignee: Kansai Chemical Eng. Col. Ltd.
    Inventors: Hideo Noda, Takaya Inoue, Hiroshi Yamaji
  • Patent number: 6334704
    Abstract: A liquid ejection apparatus has gutter bodies secured to an agitator shaft at predetermined inclination angles or gutter bodies or tubular bodies attached to these agitator shaft so that the size of the inclination angles are adjustable. The gutter bodies or tubular bodies of the liquid ejection apparatus are revolved around the agitator shaft so that liquid is ejected from the respective upper openings of the gutter bodies or tubular bodies. This liquid is distributed onto the inner surface of a tank, and/or into a space above a liquid surface, thereby washing the inner surface of the tank, maintaining the heat transfer area, and promoting evaporation of the liquid in the tank.
    Type: Grant
    Filed: December 22, 2000
    Date of Patent: January 1, 2002
    Assignee: Kansai Chemical Eng. Col. Ltd.
    Inventors: Hideo Noda, Takaya Inoue
  • Patent number: 6315952
    Abstract: An apparatus for drawing and supplying multiple samples for rapid processing in flow cytometry. The apparatus comprises a reciprocating valve and at least one syringe. The invention is also a method for rapidly processing multiple samples in flow cytometry using the apparatus.
    Type: Grant
    Filed: June 10, 1999
    Date of Patent: November 13, 2001
    Assignee: The University of New Mexico
    Inventors: Larry A. Sklar, Bruce Edwards, Frederick W. Kuckuck, III
  • Patent number: 6302590
    Abstract: The optical connector comprises: a housing portion including: a first bay for engaging a first plug having a waveguide, the first bay being at least partially open at a proximal end and having a wall at a distal end of the first bay; a chamber adjoining the first bay at the wall and having an optical pathway therein; at least two external passive alignment pins integrally formed with the first bay for engaging recesses in the first plug when the first plug is engaged with the first bay; the external passive alignment pins for passively aligning the waveguide to the optical pathway; and an opening in the wall for allowing transmission of an optical signal along the optical pathway between the first plug and the chamber.
    Type: Grant
    Filed: September 3, 1999
    Date of Patent: October 16, 2001
    Assignee: Picolight Incorporated
    Inventor: Andrew Moore
  • Patent number: 6304481
    Abstract: A data storage device including a substrate, a data storage layer on the substrate, and a spin-polarized electron source. The data storage layer comprises a fixed number of atomic layers of a magnetic material which provide the data storage layer with a magnetic anisotropy perpendicular to a surface of the data storage layer. A data magnetic field is created in the data storage layer. The data magnetic field is polarized either in a first direction corresponding to a first data value or in a second direction corresponding to a second data value.
    Type: Grant
    Filed: July 7, 2000
    Date of Patent: October 16, 2001
    Assignee: TeraStore, Inc.
    Inventor: Thomas D. Hurt
  • Patent number: 6298334
    Abstract: A method implemented in a computer system for dynamically analyzing the status of a numeric system wherein the numeric system which includes one or more numeric objects such as inflow objects, outflow objects, account objects, variable objects, and pipe objects. The present invention also provides numeric objects having a growth property. In addition the present invention provides single icons which represent either a row or column of a spredsheet.
    Type: Grant
    Filed: October 15, 1998
    Date of Patent: October 2, 2001
    Assignee: NetDecide Corporation
    Inventors: Evan G. Burfield, Chia Chen Chang, Mark Drissel, Matthew Eichler, Richard Garrett, Robert Groat, Neill Kipp, Perry Russell Rapp
  • Patent number: 6269109
    Abstract: A conductive element with a lateral oxidation barrier is provided for the control of lateral oxidation processes in semiconductor devices such as lasers, vertical cavity surface emitting lasers and light emitting diodes. The oxidation barrier is formed through modification of one or more layers which initially were receptive to oxidation. The quality of material directly below the oxidation barrier may be preserved. Related applications include the formation of vertical cavity surface emitting lasers on non-GaAs substrates and on GaAs substrates.
    Type: Grant
    Filed: December 9, 1999
    Date of Patent: July 31, 2001
    Assignee: Picolight Incorporated
    Inventor: Jack L. Jewell
  • Patent number: 6245046
    Abstract: The present invention provides a syringe device comprising: a first syringe comprising: a first syringe barrel including a first opening at a distal end thereof through which fluid may be forced or aspirated; and a first syringe plunger sliding within the first syringe barrel for forcing fluid through the first syringe barrel opening, the first syringe plunger including a stopper at a distal end thereof which sealingly and slidably engages the first syringe barrel; a reciprocating member which moves along a track parallel to the axial direction of the first syringe; and a reciprocating device connecting the first syringe plunger to the reciprocating member so that when one member of the group consisting of the first syringe plunger and the reciprocating member moves distally, the other member of the group is forced to move proximally.
    Type: Grant
    Filed: May 3, 1999
    Date of Patent: June 12, 2001
    Assignee: University of New Mexico
    Inventor: Wilmer L. Sibbitt
  • Patent number: 6243508
    Abstract: A novel electro-opto-mechanical assembly is provided. The electro-opto-mechanical assembly comprising: a first wafer, the wafer having a top and bottom surface; at least one optical element disposed on one surface of the first wafer; at least one discrete opto-electronic transducer element disposed on the bottom surface of the first wafer and in optical communication with the optical element; and an optical waveguide; wherein the first wafer and the optical element form an optical relay which relays light between the discrete opto-electronic transducer and the optical waveguide and thereby forms an efficient optical coupling between the discrete opto-electronic transducer and the optical waveguide.
    Type: Grant
    Filed: June 1, 1999
    Date of Patent: June 5, 2001
    Assignee: Picolight Incorporated
    Inventors: Jack L. Jewell, Stanley Swirhun, Mikhail Kaluzhny, Andrew Moore
  • Patent number: 6241381
    Abstract: A liquid ejection apparatus has gutter bodies secured to an agitator shaft at predetermined inclination angles or gutter bodies or tubular bodies attached to the agitator shaft so that the size of the inclination angles are adjustable. The gutter bodies or tubular bodies of the liquid ejection apparatus are revolved around the agitator shaft so that liquid is ejected from the respective upper openings of the gutter bodies or tubular bodies. This liquid is distributed onto the inner surface of a tank, and/or into a space above a liquid surface, thereby washing the inner surface of the tank, maintaining the heat transfer area, and promoting evaporation of the liquid in the tank.
    Type: Grant
    Filed: April 21, 2000
    Date of Patent: June 5, 2001
    Assignee: Kansai Chemical Eng. Col. Ltd.
    Inventors: Hideo Noda, Takaya Inoue
  • Patent number: 6234437
    Abstract: Flexible reclining, thrusting and vertical supports for structures such as guard rail barriers. The design of the flexible supports allow them to absorb the kinetic energy of vehicles and other objects which collide with the guard rail barrier.
    Type: Grant
    Filed: June 9, 1999
    Date of Patent: May 22, 2001
    Inventor: Ricardo F. Cabo
  • Patent number: 6224017
    Abstract: A brake for a flap adjusting mechanism and a method for condition monitoring are proposed. The brake has one or more temperature sensors (30). In the method for condition monitoring, the temperature signal is compared with a desired temperature (T1, T2) in the signal processing unit in a time period during or after a rotation of the driveshaft (2) in the housing (4) while expending the braking moment. An error signal is produced in case of deviations of the temperature signal from the desired temperature.
    Type: Grant
    Filed: April 28, 2000
    Date of Patent: May 1, 2001
    Assignee: Liebherr-Aerospace Lindenberg GmbH
    Inventors: Manfred Fischer, Bernard Hunold, Karl Zimmermann
  • Patent number: 6221565
    Abstract: The present invention relates generally to electro-optically active waveguide segments, and more particularly to the use of a selective voltage input to control the phase, frequency and/or amplitude of a propagating wave in the waveguide. Particular device structures and methods of manufacturing are described herein.
    Type: Grant
    Filed: February 8, 1999
    Date of Patent: April 24, 2001
    Assignee: University of New Mexico
    Inventors: Ravinder Jain, Balaji Srinivasan
  • Patent number: 6209922
    Abstract: A security print contains a background pattern formed for example of dots or lines. An object, for example the text “BEWARE OF FORGERY”, is worked into this regular background pattern for copy protection. The text is worked in by the individual lines of the background pattern being split at the places where the text is located into two partial lines which are each only about half as wide as the original line. With the naked eye this split of the background pattern components is not, or barely, recognizable. When such an original security print is copied on a conventional copying machine the original, relatively wide lines of the background pattern appear on the copy but the partial lines formed by the split thereof are not, or very poorly, copied so that the text “BEWARE OF FORGERY” appears clearly in the copy.
    Type: Grant
    Filed: February 19, 1999
    Date of Patent: April 3, 2001
    Assignee: Baasel Scheel LaserGraphics GmbH
    Inventor: Thomas Klein
  • Patent number: 6206764
    Abstract: The present invention provides a method for machining hard materials using the machining fluids containing long chain alcohol in which the machining fluid is applied to a machining tool and then lubricates the machining of the workpiece by the machining tool and protects the machining tool during machining. The method is particularly useful when used with machining tools having a Mohs hardness of at least 9 and is most particularly useful when used with diamond machining tools.
    Type: Grant
    Filed: April 16, 1998
    Date of Patent: March 27, 2001
    Assignee: The United States of America as represented by the Secretary of Commerce
    Inventors: Stephen Hsu, Tsi-Neng Ying, Jia-Ming Gu, Yu-Shu Wang, Richard S. Gates
  • Patent number: 6203680
    Abstract: The present invention provides electrophoresis apparatus and electrophoresis methods employing gellan gum based gels employing divalent metal cation and diamine cross-linking agents. The gels are reversible under conditions that do not damage the biomolecules separated using the gels. The present invention also provides novel gellan gum-based gels which are cross-linked which employ a diamine cross-linking agent.
    Type: Grant
    Filed: February 5, 1999
    Date of Patent: March 20, 2001
    Assignee: The United States of America as represented by the Secretary of Commerce
    Inventor: Kenneth D. Cole
  • Patent number: 6183449
    Abstract: The present invention provides a safety cap for sharps which includes a handle which extends away from the sheath holding and covering the sharp.
    Type: Grant
    Filed: March 4, 1999
    Date of Patent: February 6, 2001
    Inventor: Wilmer L. Sibbitt