Patents by Inventor Keiji Kitagawa

Keiji Kitagawa 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: 20240072203
    Abstract: A method for fabricating light emitting diode (LED) dice includes the steps of: providing a substrate, and forming a plurality of die sized semiconductor structures on the substrate. The method also includes the steps of providing a receiving plate having an elastomeric polymer layer, placing the substrate and the receiving plate in physical contact with an adhesive force applied by the elastomeric polymer layer, and performing a laser lift-off (LLO) process by directing a uniform laser beam through the substrate to the semiconductor layer at an interface with the substrate to lift off the semiconductor structures onto the elastomeric polymer layer. During the laser lift-off (LLO) process the elastomeric polymer layer functions as a shock absorber to reduce momentum transfer, and as an adhesive surface to hold the semiconductor structures in place on the receiving plate.
    Type: Application
    Filed: November 6, 2023
    Publication date: February 29, 2024
    Applicants: SemiLEDs Corporation, SHIN-ETSU CHEMICAL CO., LTD.
    Inventors: Chen-Fu Chu, Shih-Kai Chan, Yi-Feng Shih, David Trung Doan, Trung Tri Doan, Yoshinori Ogawa, Kohei Otake, Kazunori Kondo, Keiji Ohori, Taichi Kitagawa, Nobuaki Matsumoto, Toshiyuki Ozai, Shuhei Ueda
  • Patent number: 6819342
    Abstract: A graphic data processing apparatus comprising a CPU coupled to an entry device, storage storing graphic data and a plurality of programs and a display, and adapted such that a command mode for drawing a desired graphic form is selected by designating the corresponding desired graphic form in the already displayed graphic forms and a program for drawing the graphic form is automatically selected.
    Type: Grant
    Filed: September 28, 1999
    Date of Patent: November 16, 2004
    Assignees: Design Automation Inc., Omron Corporation
    Inventors: Keiji Kitagawa, Ikuo Tani
  • Patent number: 6768501
    Abstract: A graphic data processing apparatus comprising a CPU coupled to an entry device, storage storing graphic data and a plurality of programs and a display, and adapted such that a command mode for drawing a desired graphic form is selected by designating the corresponding desired graphic form in the already displayed graphic forms and a program for drawing the graphic form is automatically selected.
    Type: Grant
    Filed: May 19, 1997
    Date of Patent: July 27, 2004
    Assignees: Keiji Kitagawa, Design Automation Inc., Omron Corporation
    Inventors: Keiji Kitagawa, Ikuo Tani
  • Publication number: 20020054145
    Abstract: A graphic data processing apparatus comprising a CPU coupled to an entry device, storage storing graphic data and a plurality of programs and a display, and adapted such that a command mode for drawing a desired graphic form is selected by designating the corresponding desired graphic form in the already displayed graphic forms and a program for drawing the graphic form is automatically selected.
    Type: Application
    Filed: May 19, 1997
    Publication date: May 9, 2002
    Inventors: KEIJI KITAGAWA, IKUO TANI
  • Publication number: 20020054147
    Abstract: A graphic data processing apparatus comprising a CPU coupled to an entry device, storage storing graphic data and a plurality of programs and a display, and adapted such that a command mode for drawing a desired graphic form is selected by designating the corresponding desired graphic form in the already displayed graphic forms and a program for drawing the graphic form is automatically selected.
    Type: Application
    Filed: September 28, 1999
    Publication date: May 9, 2002
    Inventors: KEIJI KITAGAWA, IKUO TANI
  • Patent number: 5651120
    Abstract: A graphic data processing apparatus comprising a CPU coupled to an entry device, storage storing graphic data and a plurality of programs and a display, and adapted such that a command mode for drawing a desired graphic form is selected by designating the corresponding desired graphic form in the already displayed graphic forms and a program for drawing the graphic form is automatically selected.
    Type: Grant
    Filed: December 21, 1995
    Date of Patent: July 22, 1997
    Assignees: Keiji Kitagawa, Design Automation Inc., Omron Corporation
    Inventors: Keiji Kitagawa, Ikuo Tani
  • Patent number: 5502800
    Abstract: A graphic data processing apparatus comprising a CPU coupled to an entry device, storage storing graphic data and a plurality of programs and a display, and adapted such that a command mode for drawing a desired graphic form is selected by designating the corresponding desired graphic form in the already displayed graphic forms and a program for drawing the graphic form is automatically selected.
    Type: Grant
    Filed: August 3, 1994
    Date of Patent: March 26, 1996
    Assignees: Keiji Kitagawa, Design Automation Inc., Omron Corporation
    Inventors: Keiji Kitagawa, Ikuo Tani
  • Patent number: 5337402
    Abstract: A graphic data processing apparatus comprising a CPU coupled to an entry device, storage storing graphic data and a plurality of programs and a display, and adapted such that a command mode for drawing a desired graphic form is selected by designating the corresponding desired graphic form in the already displayed graphic forms and a program for drawing the graphic form is automatically selected.
    Type: Grant
    Filed: February 13, 1991
    Date of Patent: August 9, 1994
    Assignees: Keiji Kitagawa, Design Automation Inc., Omron Corporation
    Inventors: Keiji Kitagawa, Ikuo Tani