Patents by Inventor Youti Kuo

Youti Kuo 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).

  • Patent number: 9381299
    Abstract: The invention relates generally to implantable drug delivery devices. Devices having a single drug chamber configuration, a divided drug chamber configuration and a compact dual-drug configuration are described. The devices have features to prevent clogging of the dispensing catheter and the creation of a local vacuum caused by the dispensing of the drug fluid. Also provided are features of a failsafe refilling process, automatic refill notification, and performance verification process. The divided drug chamber configuration enables frequent or continuous minute doses. A dual-drug chamber configuration uses self-locking refill containers to prevent mismatching between refill containers and drug chambers.
    Type: Grant
    Filed: December 2, 2013
    Date of Patent: July 5, 2016
    Assignee: Kuvio, Inc.
    Inventors: Youti Kuo, Michael R. Violante
  • Publication number: 20140214010
    Abstract: A drug delivery device utilizing compressible fluid chambers for actuation is disclosed. The device includes a compressible dispensing chamber situated in a first compartment and a compressible filler-fluid chamber in flow communication with the first compartment. The compressible dispensing chamber is attached with a reciprocating plunger for dispensing the drug fluid. The drug chamber is refillable with a refill container that uses a compressible pouch containing the refill drug fluid. The refilling process is failsafe enabled by the insertion of the refill container needle only at the correct position to activate an internal contact switch. The compressible-wall configurations enable low dispensing forces without leakage of the drug fluid.
    Type: Application
    Filed: April 18, 2012
    Publication date: July 31, 2014
    Inventors: Youti Kuo, Michael Violante
  • Patent number: 8740490
    Abstract: Dentifrice dispensing electrical toothbrush comprising a driver-pump head with a dispensing platform, a replaceable brush unit and a handle having a battery and a cartridge containing dentifrice material. The replaceable brush unit includes a oscillatory brush element and a brush element having a circular or an elongated spout opening as well as a snap-on mounting bracket for fastening to the driver-pump head. The dispensing platform contains a flow channel and a self-sealing spout to prevent drying of the dentifrice material at the spout. The self-sealing spout opens and closes automatically during a pumping action. The brush element with a spout opening is detachably mounted over the spout fixed on the dispensing platform to allow for brush oscillation around the spout and receive the dentifrice material dispensed from the flow channel. Different drive mechanisms are used to impart rotary, lateral or longitudinal oscillation on a brush element in a brush unit.
    Type: Grant
    Filed: January 7, 2012
    Date of Patent: June 3, 2014
    Inventor: Youti Kuo
  • Publication number: 20140142556
    Abstract: The invention relates generally to implantable drug delivery devices. Devices having a single drug chamber configuration, a divided drug chamber configuration and a compact dual-drug configuration are described. The devices have features to prevent clogging of the dispensing catheter and the creation of a local vacuum caused by the dispensing of the drug fluid. Also provided are features of a failsafe refilling process, automatic refill notification, and performance verification process. The divided drug chamber configuration enables frequent or continuous minute doses. A dual-drug chamber configuration uses self-locking refill containers to prevent mismatching between refill containers and drug chambers.
    Type: Application
    Filed: December 2, 2013
    Publication date: May 22, 2014
    Inventors: Youti Kuo, Michael R. Violante
  • Patent number: 8647007
    Abstract: Pump toothbrush comprising a pump head, a refillable cartridge containing dentifrice material, an integrated dispensing platform and a disposable bristle head. The pump head includes an inlet connector for attaching the cartridge, a pumping chamber attached with an elastic compressible button, and a dispensing platform. The dispensing platform contains a flow channel and a self-sealing slit-spout to prevent drying of the dentifrice material at the spout. The slit spout opens and closes automatically when the compressible button is pressed and released. The bristle head, which is the disposable part of the pump toothbrush, is attached to the dispensing platform for structural support and receiving the dentifrice material from the slit spout. Gum-guard elements are optionally attached to the periphery of the dispensing platform for massaging gums.
    Type: Grant
    Filed: January 7, 2012
    Date of Patent: February 11, 2014
    Inventor: Youti Kuo
  • Patent number: 8603051
    Abstract: The invention relates generally to implantable drug delivery devices. Devices having a single drug chamber configuration, a divided drug chamber configuration and a compact dual-drug configuration are described. The devices have features to prevent clogging of the dispensing catheter and the creation of a local vacuum caused by the dispensing of the drug fluid. Also provided are features of a failsafe refilling process, automatic refill notification, and performance verification process. The divided drug chamber configuration enables frequent or continuous minute doses. A dual-drug chamber configuration uses self-locking refill containers to prevent mismatching between refill containers and drug chambers.
    Type: Grant
    Filed: February 17, 2010
    Date of Patent: December 10, 2013
    Assignee: Kuvio, Inc.
    Inventors: Youti Kuo, Michael R. Violante
  • Publication number: 20130011177
    Abstract: Dentifrice dispensing electrical toothbrush comprising a driver-pump head with a dispensing platform, a replaceable brush unit and a handle having a battery and a cartridge containing dentifrice material. The replaceable brush unit includes a oscillatory brush element and a brush element having a circular or an elongated spout opening as well as a snap-on mounting bracket for fastening to the driver-pump head. The dispensing platform contains a flow channel and a self-sealing spout to prevent drying of the dentifrice material at the spout. The self-sealing spout opens and closes automatically during a pumping action. The brush element with a spout opening is detachably mounted over the spout fixed on the dispensing platform to allow for brush oscillation around the spout and receive the dentifrice material dispensed from the flow channel. Different drive mechanisms are used to impart rotary, lateral or longitudinal oscillation on a brush element in a brush unit.
    Type: Application
    Filed: January 7, 2012
    Publication date: January 10, 2013
    Inventor: Youti Kuo
  • Publication number: 20120183343
    Abstract: Pump toothbrush comprising a pump head, a refillable cartridge containing dentifrice material, an integrated dispensing platform and a disposable bristle head. The pump head includes an inlet connector for attaching the cartridge, a pumping chamber attached with an elastic compressible button, and a dispensing platform. The dispensing platform contains a flow channel and a self-sealing slit-spout to prevent drying of the dentifrice material at the spout. The slit spout opens and closes automatically when the compressible button is pressed and released. The bristle head, which is the disposable part of the pump toothbrush, is attached to the dispensing platform for structural support and receiving the dentifrice material from the slit spout. Gum-guard elements are optionally attached to the periphery of the dispensing platform for massaging gums.
    Type: Application
    Filed: January 7, 2012
    Publication date: July 19, 2012
    Inventor: Youti Kuo
  • Publication number: 20120059349
    Abstract: The invention relates generally to implantable drug delivery devices. Devices having a single drug chamber configuration, a divided drug chamber configuration and a compact dual-drug configuration are described. The devices have features to prevent clogging of the dispensing catheter and the creation of a local vacuum caused by the dispensing of the drug fluid. Also provided are features of a failsafe refilling process, automatic refill notification, and performance verification process. The divided drug chamber configuration enables frequent or continuous minute doses. A dual-drug chamber configuration uses self-locking refill containers to prevent mismatching between refill containers and drug chambers.
    Type: Application
    Filed: February 17, 2010
    Publication date: March 8, 2012
    Applicant: PharmaNova, Inc.
    Inventors: Youti Kuo, Michael R. Violante
  • Patent number: 7819396
    Abstract: A sheet separating mechanism and a method of separating sheets that includes a retard surface carrier that causes a retard surface to apply an alternately higher and lower friction force against the edge of an underlying sheet. The alternation of the higher and lower friction force can be coupled to a vacuum sheet feeder. The retard surface can be translated to present a next portion of the retard surface to the edge of the next underlying sheet with the translation coupled to the vacuum sheet feeder.
    Type: Grant
    Filed: August 25, 2005
    Date of Patent: October 26, 2010
    Assignee: Xerox Corporation
    Inventors: Youti Kuo, Kenneth W. Luff, Ernest L. DiNatale
  • Patent number: 7789583
    Abstract: Pump toothbrush comprising a refillable cartridge containing dentifrice material, a pump head having an elastic compressible button, and a brush head having a spout opening attached with a slit valve. The slit valve prevents backflow and drying of the dentifrice material at the spout opening. The slit valve opens and closes automatically with the pumping action. The dispensing mechanism and cartridge structure are applicable to manual and electrical pump toothbrushes.
    Type: Grant
    Filed: August 19, 2005
    Date of Patent: September 7, 2010
    Inventor: Youti Kuo
  • Patent number: 7634222
    Abstract: This is a mechanical oil dispenser for use in applying an oil to the surface (or two surfaces in a duplex mode) of printed media to improve its sheet-handling characteristics. This dispenser system has an oil-containing housing or tank with oil ports at the bottom of the tank. The ports are abutting a wick, this wick then disperses oil to an applicator roll which in turn applies oil to one or both surfaces of a printed media. The oil ports and oil flow are controlled by the profile of a cam and shaft in operative connection to said ports. Opening and closing of these oil ports are controlled by a cam shaft movement actuated by the rotation and stopping of the applicator roll.
    Type: Grant
    Filed: August 8, 2006
    Date of Patent: December 15, 2009
    Assignee: Xerox Corporation
    Inventor: Youti Kuo
  • Patent number: 7623814
    Abstract: A single-pass bypass printing machine including: (a) a moveable photoreceptor belt for moving through an imaging path; (b) apparatus for supplying and feeding print media along a main media path and a bypass media path; (c) a first stage including at least three imaging subassemblies for forming a first color toner image on the photoreceptor; (d) a first transfer station for transferring the first color toner image onto the print media; (e) apparatus for diverting the print media from the main media path onto the bypass media path; (f) a second stage including at least one marking engine for forming a second color toner image on the photoreceptor; (g) apparatus for moving the print media from the bypass media path back into the main media path; and (h) a second transfer station for transferring the second color toner image onto the print media, forming a desired multi-color toner image on the print media.
    Type: Grant
    Filed: June 25, 2007
    Date of Patent: November 24, 2009
    Assignee: Xerox Corporation
    Inventors: Youti Kuo, Joseph H Rowe
  • Patent number: 7567770
    Abstract: An electrophotographic printing apparatus includes a housing, a photoreceptor module located inside the housing that includes a photoreceptor, a raster output system located inside the housing for projecting an electrostatic image onto the photoreceptor, a charging station, a developer station, a transfer station, a pre-fuser transport, and a fusing station. The module may be removed from an operating position inside the housing. The transfer station is connected to the pre-fuser transport so that they are constrained to move as one unit when the photoreceptor module is in its operating position inside the housing but are disconnected when the photoreceptor module is removed from its operating position inside the housing. The transfer module may be mounted so as to be constrained by a pre-fuser transport.
    Type: Grant
    Filed: August 25, 2006
    Date of Patent: July 28, 2009
    Assignee: Xerox Corporation
    Inventors: David K. Ahl, Douglas A. McKeown, Robert A. Gross, Michael G. Petranto, Youti Kuo, Mark Stevens
  • Publication number: 20080317505
    Abstract: A single-pass bypass printing machine including: (a) a moveable photoreceptor belt for moving through an imaging path; (b) apparatus for supplying and feeding print media along a main media path and a bypass media path; (c) a first stage including at least three imaging subassemblies for forming a first color toner image on the photoreceptor; (d) a first transfer station for transferring the first color toner image onto the print media; (e) apparatus for diverting the print media from the main media path onto the bypass media path; (f) a second stage including at least one marking engine for forming a second color toner image on the photoreceptor; (g) apparatus for moving the print media from the bypass media path back into the main media path; and (h) a second transfer station for transferring the second color toner image onto the print media, forming a desired multi-color toner image on the print media.
    Type: Application
    Filed: June 25, 2007
    Publication date: December 25, 2008
    Applicant: XEROX CORPORATION
    Inventors: Youti Kuo, Joseph H. Rowe
  • Publication number: 20080255472
    Abstract: An ovulation-prediction device with an image processing system containing a transmissive test platen for placing saliva samples and a miniature camera for capturing the image of saliva sample at dried state for analyzing the increase of salt content for predicting ovulation. An image processing method with an algorithm described for removing noise in a saliva sample for calculating the density of dark pixels which represents salt content in the sample. A Density Index is defined. Trend curve of Density Index vs. day is established based on the daily saliva analysis in a woman's menstrual cycle for predicting days from the ovulation. Also illustrated are applications of the image processing system in an electrical toothbrush, a dental massager and a portable compact device using a disposable tape cassette for testing saliva samples.
    Type: Application
    Filed: April 13, 2007
    Publication date: October 16, 2008
    Inventor: Youti Kuo
  • Patent number: 7418222
    Abstract: A photoreceptor module located within a housing. The photoreceptor module includes a photoreceptor belt, a belt support to maintain the belt in a desired configuration, and a transfer assembly. The transfer assembly is operably positioned in close proximity to the belt, and may be moved away from the belt while both are within the housing to ease clearance of paper jams.
    Type: Grant
    Filed: July 28, 2004
    Date of Patent: August 26, 2008
    Assignee: Xerox Corporation
    Inventors: David K. Ahl, Douglas A. McKeown, Robert A. Gross, Michael G. Petranto, Youti Kuo, Mark Stevens
  • Publication number: 20080035002
    Abstract: This is a mechanical oil dispenser for use in applying an oil to the surface (or two surfaces in a duplex mode) of printed media to improve its sheet-handling characteristics. This dispenser system has an oil-containing housing or tank with oil ports at the bottom of the tank. The ports are abutting a wick, this wick then disperses oil to an applicator roll which in turn applies oil to one or both surfaces of a printed media. The oil ports and oil flow are controlled by the profile of a cam and shaft in operative connection to said ports. Opening and closing of these oil ports are controlled by a cam shaft movement actuated by the rotation and stopping of the applicator roll.
    Type: Application
    Filed: August 8, 2006
    Publication date: February 14, 2008
    Inventor: Youti Kuo
  • Patent number: 7314453
    Abstract: A handheld diagnostic device having a test head and a handle is equipped with an open test channel having sensors and liquid reagent dispensing opening for the diagnostic testing of body fluids. The test channel can draw in fluid sample by capillary force and be closed by a channel cover for mixing the fluid sample with liquid reagent for electrochemical reactions for providing measurement signals for diagnostic analysis by a microprocessor included in the handle. A vibration means is added for stimulating the production of the body fluid sample and for assisting mixing of the sample solution. A renewable biosensor having a reusable electrode system and a dispensing means for providing a new dose of liquid reagent is included in the test head for repeated uses of the test channel and the biosensor. A dual-dispensers system having two reagent cartridges and two dispensing lines is included for simultaneous or selective dispensing of reagents for multiple diagnostic testing.
    Type: Grant
    Filed: May 14, 2001
    Date of Patent: January 1, 2008
    Inventor: Youti Kuo
  • Patent number: 7242894
    Abstract: An electrostatographic printing apparatus comprises a charge receptor, and a transfer station for transferring a toner image from the charge receptor to a sheet. The sheet passes through a nip formed between the charge receptor and a moving transfer belt. Upstream of the nip, the belt forms a shallow angle relative to the charge receptor; downstream of the nip, the belt forms a steep angle relative to the charge receptor. This configuration enables self-stripping of the sheet from the transfer belt at the exit of the nip.
    Type: Grant
    Filed: November 15, 2004
    Date of Patent: July 10, 2007
    Assignee: Xerox Corporation
    Inventors: Youti Kuo, Robert A. Gross, David K. Ahl, Douglas A. McKeown, Mark Stevens, Gerald M. Fletcher, Christopher A. DiRubio