Patents by Inventor Kin Kwan

Kin Kwan 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).

  • Publication number: 20240148237
    Abstract: A medical scope device such as an endoscope is produced using a cast aluminum process including a molten casting aluminum alloy including a maximum of 0.2-0.3% Si and at least 5% Zn. The process includes providing an investment casting mold, casting the aluminum alloy in the mold to create a component and removing the mold from the component, post-machining the component to meet a desired specification, and after post-machining the component, performing surface finishing, such as centrifugal barrel finishing (CBF) sufficient to remove impurities on casting surfaces by 2-3 mils, then coating the component with a micro-crystalline aluminum anodic coating of at least 0.5 mil thickness. A medical scope and product-by-process is also provided employing such techniques.
    Type: Application
    Filed: December 18, 2023
    Publication date: May 9, 2024
    Applicant: KARL STORZ Imaging, Inc.
    Inventors: Kin Kwan, Nicolaus Hudson, Keith Hieber, Long Nguyen, Michael Rhodes
  • Patent number: 11877725
    Abstract: A medical scope device such as an endoscope is produced using a cast aluminum process including a molten casting aluminum alloy including a maximum of 0.2-0.3% Si and at least 5% Zn. The process includes providing an investment casting mold, casting the aluminum alloy in the mold to create a component and removing the mold from the component, post-machining the component to meet a desired specification, and after post-machining the component, performing surface finishing, such as centrifugal barrel finishing (CBF) sufficient to remove impurities on casting surfaces by 2-3 mils, then coating the component with a micro-crystalline aluminum anodic coating of at least 0.5 mil thickness. A medical scope and product-by-process is also provided employing such techniques.
    Type: Grant
    Filed: July 6, 2021
    Date of Patent: January 23, 2024
    Inventors: Kin Kwan, Nicolaus Hudson, Keith Hieber, Long Nguyen, Michael Rhodes
  • Publication number: 20230008104
    Abstract: A medical scope device such as an endoscope is produced using a cast aluminum process including a molten casting aluminum alloy including a maximum of 0.2 - 0.3% Si and at least 5% Zn. The process includes providing an investment casting mold, casting the aluminum alloy in the mold to create a component and removing the mold from the component, post-machining the component to meet a desired specification, and after post-machining the component, performing surface finishing, such as centrifugal barrel finishing (CBF) sufficient to remove impurities on casting surfaces by 2 - 3 mils, then coating the component with a micro-crystalline aluminum anodic coating of at least 0.5 mil thickness. A medical scope and product-by-process is also provided employing such techniques.
    Type: Application
    Filed: July 6, 2021
    Publication date: January 12, 2023
    Applicant: KARL STORZ Imaging, Inc.
    Inventors: Kin Kwan, Nicolaus Hudson, Keith Hieber, Long Nguyen, Michael Rhodes
  • Publication number: 20070246146
    Abstract: A method of packaging an ink tank for shipment, the method comprising: (a) sealing a first substratum to an ink tank to inhibit fluid communication between an interior of the ink tank and an external environment by way of an ink outlet port of the ink tank, the resultant seal between the first substratum and the ink tank includes at least one of an apex at least partially defined by two substantially linear segments being angled from one another between about 20 degrees to about 160 degrees and fractions separating portions of the substrate from one another; and (b) sealing a second substratum to the ink tank to inhibit fluid communication between the interior of the ink tank and the external environment by way of an ink vent of the ink tank, where the first substratum and the second substratum are removable from the ink tank.
    Type: Application
    Filed: April 19, 2006
    Publication date: October 25, 2007
    Inventors: James Anderson, Richard Corley, Kin Kwan, Bhaskar Ramakrishnan, William Rose
  • Publication number: 20070153074
    Abstract: Printing systems such as those comprising a printing device operable for depositing one or more inks upon a substrate and a drying device, such as one operable for emitting radiation having a pre-selected electromagnetic wavelength, for the purpose of drying the one or more inks in a predetermined time period subsequent to the deposition of the one or more inks upon the substrate, wherein the printing device and the drying device are operated at about the same moving speed. Methods of printing, such as those comprising depositing one or more inks onto a substrate using a printing device and drying the one or more deposited inks using a drying device, such as one operable for emitting pre-selected wavelengths of energy that are focused onto the one or more deposited inks in a predetermined time period subsequent to ink deposition, wherein the depositing and the drying are synchronized.
    Type: Application
    Filed: December 30, 2005
    Publication date: July 5, 2007
    Inventors: Frank Anderson, Richard Corley, Kin Kwan, Paul Sacoto, Jeanne Saldanha Singh
  • Publication number: 20060227173
    Abstract: Ink delivery systems achieve balanced ink flow by positioning two or more ink chambers around ink ejection mechanisms in a printhead. A plurality of pie-shaped ink chambers may be arranged in a circle above an ink ejection mechanism, which provides short ink paths from each ink chamber, and ink paths having approximately the same length. This fosters even ink flow rates and equal pressure drop/loss of ink supplies, thereby improving ink feeds to a printhead and providing improved jetting efficiency and printhead performance.
    Type: Application
    Filed: April 7, 2005
    Publication date: October 12, 2006
    Inventors: Jeffery Buchanan, Kin Kwan, Ganesh Phatak, Audrey Rodgers
  • Publication number: 20060154403
    Abstract: A process for fabricating an integrated circuit package. Metal is plated up on a substrate to provide a plurality of contacts pads and a plurality of fiducial markings on a periphery of the contacts. A transparent mask is selectively deposited on the substrate, over the fiducial markings. A semiconductor die is mounted on the substrate such that the contact pads circumscribe the semiconductor die and the semiconductor die is wire bonded to ones of the contact pads. The wire bonds are encapsulated and the semiconductor die and contact pads are covered in a molding material. The substrate is selectively etched to thereby etch away the substrate underneath the contact pads and the semiconductor die. The integrated circuit package is singulated from other integrated circuit packages by sawing using the fiducial markings.
    Type: Application
    Filed: January 12, 2005
    Publication date: July 13, 2006
    Inventors: Neil McLellan, Serafin Pedron, Leo Higgins, Kwok Tsang, Kin Kwan
  • Publication number: 20060114297
    Abstract: A micro-fluid ejection device structure, a multi-fluid cartridge containing the ejection device structure, and methods for making the ejection device structure and cartridge. The micro-fluid ejection device structure includes a fluid supply body containing at least three fluid supply slots therein. An ejection head substrate having fluid feed slots therein is attached to the fluid supply body. Each of the fluid supply slots in the body is in flow communication with at least one of the fluid feed slots in the substrate. A plurality of adhesive bond lines adhesively attach the ejection head substrate and the fluid supply body to one another. Each of the adhesive bond lines have a width of less than about 600 microns and are located between adjacent ones of the fluid supply slots in the body.
    Type: Application
    Filed: December 1, 2004
    Publication date: June 1, 2006
    Inventors: Craig Bertelsen, Kin Kwan, Sean Weaver
  • Publication number: 20060012643
    Abstract: A method of assembling a print head that includes the steps of: (a) providing a print head base including a nozzle and at least one ink channel; (b) mounting in fluid communication with the at least one ink channel of the print head base an ink regulator that includes: (i) a pressurized chamber including an ink inlet in fluid communication with an ink source, an ink outlet in fluid communication with the at least one ink channel of the print head base, and an exterior flexible wall having an inner surface facing an interior of the pressurized chamber, (ii) a valve biased to restrict fluid communication between the ink source and the pressurized chamber, where the exterior flexible wall actuates the valve to overcome the bias in response to a predetermined pressure differential across the exterior flexible wall to provide fluid communication between the ink source and the pressurized chamber, where the fluid communication between the pressurized chamber and the ink source decreases the pressure differential ac
    Type: Application
    Filed: September 21, 2005
    Publication date: January 19, 2006
    Inventors: James Anderson, James Drummond, Tim Frasure, John Fowler, David Greer, James Kerr, Steven Komplin, Kin Kwan, Matthew Russell, Ann Trebolo, Jon Whitney
  • Publication number: 20060001713
    Abstract: A method for manufacturing an inkjet print cartridge and an inkjet cartridge produced thereby are disclosed. An inkjet print cartridge in accordance with one aspect includes a component of the inkjet print cartridge and an applied adhesive on at least a portion of the component, wherein the applied adhesive is formed from an adhesive having a rheology viscosity ratio ?i/?min of from 1.0 to less than 2.1. The method in accordance with one aspect includes applying an adhesive onto at least a portion of a component of an inkjet print cartridge at an application temperature, T?, and heating the adhesive from an initial temperature, Ti, to a cure temperature for the adhesive, Tc. The adhesive has a rheology cure profile characterized by at least one of the following parameters: a) a rheology viscosity ratio ?i/?min of from 1.0 to less than 2.
    Type: Application
    Filed: June 29, 2005
    Publication date: January 5, 2006
    Inventors: Kin Kwan, James Mrvos, Jeanne Saldanha Singh, Mary Smoot
  • Publication number: 20060001704
    Abstract: A multi-fluid body and an ejection head substrate connected in fluid flow communication with the multi-fluid body for ejecting multiple fluids therefrom. The multi-fluid body includes at least two segregated fluid chambers. Independent fluid supply paths lead from each of the fluid chambers providing fluid to multiple fluid flow paths in the ejection head substrate. The ejection head substrate is attached adjacent an ejection head area of the body. The fluid flow paths in the ejection head substrate have a flow path density of greater than about one flow paths per millimeter.
    Type: Application
    Filed: June 30, 2004
    Publication date: January 5, 2006
    Inventors: Frank Anderson, Jeffery Buchanan, Curtis Droege, David Greer, Kin Kwan, Gregory Long, Ganesh Phatak, Paul Spivey, Carl Sullivan, Kent Ubellacker, Melissa Waldeck
  • Publication number: 20050099472
    Abstract: A printing cartridge including a body, the body having a base and a tower defining a passageway. The tower is made from a first polymer material, and has a proximal end and a distal end. The proximal end is attached to the base. The distal end includes a surface. A frame, made of a second polymer material different from the first polymer material, is attached to the surface of the tower. A filter is attached to the frame and positioned to extend over the passageway.
    Type: Application
    Filed: November 7, 2003
    Publication date: May 12, 2005
    Inventors: James Kerr, Kin Kwan, Ganesh Phatak, Jeanne Singh, Paul Spivey, Jon Whitney
  • Publication number: 20050012793
    Abstract: An apparatus for a laser transmission welding process for attaching a synthetic filter material to a filter tower frame in an ink jet printer cartridge. The apparatus includes a laser beam source and a filter clamping fixture containing a base, slide rods attached on first ends thereof to the base, an optics support plate attached to second ends of the slide rods, a movable platform for holding an ink cartridge slidably disposed on the slide rods between the base and the optics support plate, a platform moving device for translating the platform to and from a laser welding position, a laser beam transparent plate suspended by support legs from the optics support plate to a position between the movable platform and the optics support plate. The apparatus greatly improves synthetic filter attachment to a filter tower frame in an ink cartridge.
    Type: Application
    Filed: July 15, 2003
    Publication date: January 20, 2005
    Inventors: Kin Kwan, David Shadwick, Jeanne M. Singh, Paul Spivey, Jon Whitney, Julie Gordon Whitney