Patents by Inventor David Okada

David Okada 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: 20070278597
    Abstract: Provided herein are exemplary embodiments of monolithic semiconductor structures having at least two lateral constructed semiconductor devices combined on a single semiconductor substrate.
    Type: Application
    Filed: December 10, 2004
    Publication date: December 6, 2007
    Applicant: Great Wall Semiconuctor Corporation
    Inventors: Zheng Shen, David Okada
  • Publication number: 20070278675
    Abstract: Provided herein, in accordance with one aspect of the present invention, are exemplary embodiments of semiconductor chips having low metallization series resistance. In one embodiment, the semiconductor chip comprises a semiconductor substrate and a metallization structure formed on the semiconductor substrate; an under bump metallurgy (“UBM”) structure layer formed over the metallization structure; and a bump formed over said UBM layer; wherein the largest linear dimension of said UBM layer is larger than the diameter of said bump.
    Type: Application
    Filed: December 3, 2004
    Publication date: December 6, 2007
    Applicant: Great Wall Semiconductor Corporation
    Inventor: David Okada
  • Publication number: 20060163658
    Abstract: A cell phone has a plurality of interconnected electronic components for performing the electrical functions of the phone. A DC/DC converter provides an operating voltage which is applied to power supply terminals of the plurality of interconnected electronic components. The DC/DC converter uses a monolithic semiconductor device containing a power metal oxide semiconductor field effect transistor (MOSFET) and Schottky diode. The semiconductor device has the lateral diffused MOSFET formed on a surface of the semiconductor device. The MOSFET is formed with a plurality conduction fingers. The Schottky diode is also formed on the surface of the semiconductor device and integrated between the plurality of conduction fingers of the MOSFET. The drain of the MOSFET is connected to the anode of the diode on the surface of the monolithic semiconductor device.
    Type: Application
    Filed: January 18, 2006
    Publication date: July 27, 2006
    Inventors: Samuel Anderson, David Okada
  • Publication number: 20060163709
    Abstract: A chip-scale package houses a monolithic semiconductor die containing first and second lateral metal oxide semiconductor field effect transistors (MOSFETs) formed on a surface of the semiconductor die. The MOSFETs are formed using a lateral double diffused metal oxide semiconductor structure. The first MOSFET has a first conduction terminal coupled to a first package terminal and a second conduction terminal coupled to a second package terminal. The second MOSFET has a first conduction terminal coupled to a control terminal of the first MOSFET, a second conduction terminal coupled to a third package terminal, and a control terminal coupled to a fourth package terminal. A resistor is coupled between the first package terminal and the control terminal of the first MOSFET. A logic level enable signal controls the first MOSFET to enable the second MOSFET to connect a DC voltage from the first package terminal to the second package terminal.
    Type: Application
    Filed: January 18, 2006
    Publication date: July 27, 2006
    Inventors: Samuel Anderson, David Okada
  • Publication number: 20060118811
    Abstract: A semiconductor device that is comprised to two or more MOSFETs to form a bi-directional power switch.
    Type: Application
    Filed: February 4, 2004
    Publication date: June 8, 2006
    Inventors: Shen Zheng, David Okada
  • Patent number: 6554679
    Abstract: The interactive doll simulates the character of a live person or, in other embodiments a fantasy figure or animal, in essence, simulating a living being that possesses respective human or animal qualities: displaying specific needs, tenderness, intelligence and/or understanding. The doll contains a clock or other timekeeping device and thereby knows of the time of day. It automatically enters a sleep mode at a preset sleep time during which the playtoy remains quiet, and wakens at a preset hour of the day, issuing a verbal statement to let the player know it is time to again play. By issuing a sequence of verbal requests from time to time to the player to take action of various kinds on or with the doll, determines the player's compliance or noncompliance with each such request and issues a verbal message appropriate to such compliance or non-compliance.
    Type: Grant
    Filed: January 29, 1999
    Date of Patent: April 29, 2003
    Assignee: Playmates Toys, Inc.
    Inventors: Judy Shackelford, Ryan Slate, David Okada