Patents by Inventor Mao Lee

Mao Lee 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: 20050018934
    Abstract: A linear motion guide device includes a casing having two beams disposed between two end plates and two side panels of a frame, each beam has a longitudinal slot, two stops are secured to the end plates with latches, and each has a projection engaged with the casing, to anchor the casing in the frame, and each has two indentations communicating with the longitudinal passages of the side panels and the longitudinal slots of the beams of the casing, to form two endless roller-circulation paths, and to receive rotary members. Two pressing members include two ends secured to the stops, and engaged with the rotary members, to retain the stops and the frame together.
    Type: Application
    Filed: August 19, 2004
    Publication date: January 27, 2005
    Inventors: Mao Lee, Chin Wang
  • Patent number: 6778875
    Abstract: A system using backside helium in the processing of wafers in the manufacturing of semiconductor products can cause alarms that can interrupt the manufacturing of the wafers and create damaged wafers. A PID controller responds to the flow of helium gas to generate control signals for operating several algorithms. A filter connected to the output of the PID controller removes unwanted and dangerous noise spikes that have in the past caused a condition called backside alarm. Noise spikes on the dc voltages, the helium supply pressure, the pressure set point, the pressure reading and the non-optimization of the PID controller can cause the alarm.
    Type: Grant
    Filed: August 21, 2002
    Date of Patent: August 17, 2004
    Assignee: Taiwan Semiconductor Manufacturing Co., Ltd
    Inventors: Mu-Tsang Lin, Zhih-Lu Juang, Tung-Mao Lee
  • Publication number: 20040039471
    Abstract: A system using backside helium in the processing of wafers in the manufacturing of semiconductor products can cause alarms that can interrupt the manufacturing of the wafers and create damaged wafers. A PID controller responds to the flow of helium gas to generate control signals for operating several algorithms. A filter connected to the output of the PID controller removes unwanted and dangerous noise spikes that have in the past caused a condition called backside alarm. Noise spikes on the dc voltages, the helium supply pressure, the pressure set point, the pressure reading and the non-optimization of the PID controller can cause the alarm.
    Type: Application
    Filed: August 21, 2002
    Publication date: February 26, 2004
    Applicant: Taiwan Semiconductor Manufacturing Co., Ltd.
    Inventors: Mu-Tsang Lin, Zhih-Lu Huang, Tung-Mao Lee
  • Patent number: 6638114
    Abstract: A sectional connector includes a main connector having pins in two rows, one or more first sub-connector having pins in one row, and a second sub-connector having pins in one row, sequentially connected through engagement of dovetail grooves and dovetail tenons correspondingly provided on side surfaces of the main connector and the sub-connectors in contact with one another. The sectional connector may substitute for conventional PC104 and PC104 PLUS industrial computer connectors having pins in 2+2 rows and pins in 2+2+4 rows, respectively, for connecting buses. Number of the first sub-connectors used in forming the sectional connector could be changed, depending on actual need in designing an industrial computer. The sectional connector enables easy and firm connecting and soldering of pins to a PC board row by row.
    Type: Grant
    Filed: August 21, 2001
    Date of Patent: October 28, 2003
    Inventor: Chuen-Mao Lee
  • Publication number: 20030040226
    Abstract: A sectional connector includes a main connector having pins in two rows, one or more first sub-connector having pins in one row, and a second sub-connector having pins in one row, sequentially connected through engagement of dovetail grooves and dovetail tenons correspondingly provided on side surfaces of the main connector and the sub-connectors in contact with one another. The sectional connector may substitute for conventional PC104 and PC104 PLUS industrial computer connectors having pins in 2+2 rows and pins in 2+2+4 rows, respectively, for connecting buses. Number of the first sub-connectors used in forming the sectional connector could be changed, depending on actual need in designing an industrial computer. The sectional connector enables easy and firm connecting and soldering of pins to a PC board row by row.
    Type: Application
    Filed: August 21, 2001
    Publication date: February 27, 2003
    Inventor: Chuen-Mao Lee
  • Patent number: 6453489
    Abstract: A faucet coupling device includes a housing secured to a faucet and having a channel and a port and an aperture and an outlet opening communicating with each other. A nozzle is coupled to the aperture of the housing, and one or more cleaning members may be selectively coupled to the port. A switch device is disposed in the channel of the housing for switching between the outlet opening and the aperture and the port of the housing, and for controlling the water to flow through the outlet opening of the housing or the nozzle or the cleaning members.
    Type: Grant
    Filed: April 23, 2001
    Date of Patent: September 24, 2002
    Inventors: Terng Yaw Lee, Hung Mao Lee
  • Patent number: 6323997
    Abstract: A binocular is constructed to include a bridge, the bridge having two rows of knuckles aligned at two opposite lateral sides thereof, two bodies respectively pivoted to the bridge at two sides, the bodies each having a row of knuckles respectively coupled to the knuckles of the bridge, and two pivot bolts respectively fastened to the knuckles of the bridge and the knuckles of the bodies to couple the bodies to the bridge, for enabling the bodies to be turned relative to the bridge to the desired angle.
    Type: Grant
    Filed: November 6, 2000
    Date of Patent: November 27, 2001
    Inventor: Chun-Mao Lee
  • Patent number: 4963904
    Abstract: A portable camera support assembly having an adjustment block, a support piece, a shoulder rest, a camera mount, a lengthwise-extendible hand grip, a body rest, a mount adjustment knob and a torsional spring assembly. The support assembly fixes to a lower end of a camera using the camera mount. The shoulder rest and body rest are used to support and balance the camera at the shoulder and upper body of the user respectively. The adjustment block, hand grip and mount adjustment knob allow the user to position the camera in a wide range of orientations during use and also allow the support assembly to be folded up when not in use. Additionally, the hand grip and body rest can be removed and a retractable monopole fixed to the adjustment block for support of the camera remote from the user.
    Type: Grant
    Filed: September 19, 1989
    Date of Patent: October 16, 1990
    Inventor: Chun Mao Lee