Patents by Inventor Ronald James Gutteridge

Ronald James Gutteridge 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).

  • Differential capacitor structure
    Patent number: 6215645
    Abstract: A differential capacitor structure (10) formed overlying a substrate (12) having a middle layer (24) disposed between a lower layer (18) and an upper layer (28). The lower layer (18) is a static layer that is formed on the substrate (12), the middle layer (24) has a moveable component and is a dynamic layer attached to the substrate (12) using semi-circular tether supports (42), and the upper layer is a static layer that is anchored to the substrate (12). The semi-circular tether supports (42) are formed from a homogeneous material and provide structural stiffness to support the middle layer (24) in space and also provide stress relief.
    Type: Grant
    Filed: May 1, 1998
    Date of Patent: April 10, 2001
    Assignee: Motorola, Inc.
    Inventors: Guang Xuan Li, Frank A. Shemansky, Jr., Ronald James Gutteridge, Daniel N. Koury, Jr., Zuoying Lisa Zhang
  • Sensing structure comprising a movable mass and a self-test structure
    Patent number: 6070464
    Abstract: A sensing structure (10) formed overlying a substrate (50), for example a semiconductor substrate, has a movable mass (12) substantially split into two halves with a self-test structure disposed between the two halves. The self-test structure has a plurality of single-capacitor actuators for displacing the movable mass. Each actuator is formed by a movable finger (18) connected to the movable mass and a fixed finger (44) mounted by an anchor to the substrate. Each actuator is shielded by a fixed shield finger (42) so that all actuators force the movable mass in a common direction.
    Type: Grant
    Filed: September 5, 1997
    Date of Patent: June 6, 2000
    Assignee: Motorola, Inc.
    Inventors: Daniel Nicolos Koury, Jr., Ronald James Gutteridge
  • Sensor devices having a movable structure
    Patent number: 5914521
    Abstract: A sensor (11) has a movable plate (16) that moves in response to an external acceleration. The movable plate (16) has a finger (17) that is capacitively coupled to fingers (13,14) that are attached to a substrate (12). A travel stop (19) is used to stop the movable plate (16) before the finger (17) on the movable plate (16) collides into the fingers (13,14) on the substrate (12).
    Type: Grant
    Filed: July 30, 1997
    Date of Patent: June 22, 1999
    Assignee: Motorola, Inc.
    Inventors: Ronald James Gutteridge, Daniel Nicolas Koury, Jr., Daniel Joseph Koch, Jonathan Hale Hammond