Patents by Inventor Liang-Yuan Yang

Liang-Yuan Yang 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: 10825619
    Abstract: A resilient body and a keyboard structure are disclosed. The resilient body has a top portion, a bottom portion, a conducting post and an annular wall. The top portion has a first side wall and a first bottom surface. Before the resilient body is pressed, an angle is formed between the first side wall and the first bottom surface, wherein the angle is greater than 90°. The bottom portion has a second bottom surface. The conducting post is disposed under the first bottom surface. When the resilient body is pressed, the fire point of the resilient body is reached before the resilient body reaches the bottom point.
    Type: Grant
    Filed: September 17, 2019
    Date of Patent: November 3, 2020
    Assignee: CHICONY ELECTRONICS CO., LTD.
    Inventors: Fei-Wu Wu, Tsung-Min Chen, Liang-Yuan Yang
  • Publication number: 20200294738
    Abstract: A resilient body and a keyboard structure are disclosed. The resilient body has a top portion, a bottom portion, a conducting post and an annular wall. The top portion has a first side wall and a first bottom surface. Before the resilient body is pressed, an angle is formed between the first side wall and the first bottom surface, wherein the angle is greater than 90°. The bottom portion has a second bottom surface. The conducting post is disposed under the first bottom surface. When the resilient body is pressed, the fire point of the resilient body is reached before the resilient body reaches the bottom point.
    Type: Application
    Filed: September 17, 2019
    Publication date: September 17, 2020
    Inventors: FEI-WU WU, TSUNG-MIN CHEN, LIANG-YUAN YANG
  • Patent number: 8450626
    Abstract: A press key includes: a circuit module; a keycap disposed above the circuit module; and an elastic member disposed between the circuit module and the keycap, and including a bowl portion and a leg portion. The bowl portion has a width larger than that of the leg portion and includes a top open end facing the keycap, a bottom wall opposite to the top open end, a first contact extending upwardly from the bottom wall to contact the keycap when the keycap is pressed, and a second contact extending downwardly from the bottom wall to contact the circuit module when the keycap is pressed. The leg portion extends downwardly from the bottom wall and surrounds the second contact.
    Type: Grant
    Filed: June 1, 2011
    Date of Patent: May 28, 2013
    Assignee: Changshu Sunrex Technology Co., Ltd.
    Inventor: Liang-Yuan Yang
  • Publication number: 20120305376
    Abstract: A press key includes: a circuit module; a keycap disposed above the circuit module; and an elastic member disposed between the circuit module and the keycap, and including a bowl portion and a leg portion. The bowl portion has a width larger than that of the leg portion and includes a top open end facing the keycap, a bottom wall opposite to the top open end, a first contact extending upwardly from the bottom wall to contact the keycap when the keycap is pressed, and a second contact extending downwardly from the bottom wall to contact the circuit module when the keycap is pressed. The leg portion extends downwardly from the bottom wall and surrounds the second contact.
    Type: Application
    Filed: June 1, 2011
    Publication date: December 6, 2012
    Inventor: LIANG-YUAN YANG
  • Patent number: 8168905
    Abstract: A lighting keyboard includes a keyboard unit, and a combined circuit and lighting unit. The keyboard unit has a keyboard base, press keys mounted on the keyboard base, and an elastic layer disposed between the press keys and the keyboard base, and having elastic members disposed beneath the press keys. The combined circuit and lighting unit includes a membrane circuit substrate underlying the keyboard base, a first light-blocking layer disposed on top of the membrane circuit substrate, a first reflecting layer underlying the membrane circuit substrate, a backlighting module, and a second light-blocking layer. The backlighting module underlies the first reflecting layer, and cooperates with the first light-blocking layer, the membrane circuit substrate, and the first reflecting layer to define a light passage. The second light-blocking layer underlies the backlighting module. Light generated from the backlighting module is transmitted toward the press keys through the light passage.
    Type: Grant
    Filed: October 19, 2009
    Date of Patent: May 1, 2012
    Assignee: Changshu Sunrex Technology Co., Ltd.
    Inventor: Liang-Yuan Yang
  • Publication number: 20110284355
    Abstract: A keyboard includes: a membrane circuit substrate; a press key set including a one-piece membrane and a plurality of rigid reinforcing plates, the membrane having a plurality of resilient keycap portions and a connecting portion extending among and interconnecting the keycap portions, the connecting portion being fixed to the membrane circuit substrate, the keycap portions protruding upwardly from the connecting portion, each of the keycap portions having a press wall, and a surrounding wall extending downwardly from the press wall to the connecting portion, each of the reinforcing plates being disposed over the press wall of a corresponding one of the keycap portions; and a plurality of elastic members each of which is disposed between the press wall and the membrane circuit substrate.
    Type: Application
    Filed: May 19, 2010
    Publication date: November 24, 2011
    Inventor: Liang-Yuan Yang
  • Publication number: 20110266044
    Abstract: A thin film circuit board device includes a multi-layered circuit unit that includes an upper circuit layer, a lower circuit layer and an insulation layer. The upper circuit layer has at least one first contact part. The lower circuit layer is disposed below the upper circuit layer and has at least one second contact part. The insulation layer is disposed between the upper and lower circuit layers and has at least one through hole corresponding to the first and second contact parts. The pressurizing unit is attached to the multi-layered circuit unit so as to press the first and second contact parts against each other within the through hole to establish an electrical connection.
    Type: Application
    Filed: April 30, 2010
    Publication date: November 3, 2011
    Inventor: Liang-Yuan Yang
  • Publication number: 20110089005
    Abstract: A lighting keyboard includes a keyboard unit, and a combined circuit and lighting unit. The keyboard unit has a keyboard base, press keys mounted on the keyboard base, and an elastic layer disposed between the press keys and the keyboard base, and having elastic members disposed beneath the press keys. The combined circuit and lighting unit includes a membrane circuit substrate underlying the keyboard base, a first light-blocking layer disposed on top of the membrane circuit substrate, a first reflecting layer underlying the membrane circuit substrate, a backlighting module, and a second light-blocking layer. The backlighting module underlies the first reflecting layer, and cooperates with the first light-blocking layer, the membrane circuit substrate, and the first reflecting layer to define a light passage. The second light-blocking layer underlies the backlighting module. Light generated from the backlighting module is transmitted toward the press keys through the light passage.
    Type: Application
    Filed: October 19, 2009
    Publication date: April 21, 2011
    Inventor: Liang-Yuan Yang