Patents by Inventor Yasushi Sasajima

Yasushi Sasajima 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).

  • SEMICONDUCTOR INTEGRATED-CIRCUIT DEVICE AND METHOD OF PRODUCING THE SAME
    Publication number: 20140308811
    Abstract: A semiconductor integrated-circuit device using the copper wiring having increased electromigration resistance, low resistivity, and a line width of 70 nm or less, is provided. The present invention is characterized by the annealing treatment wherein a copper wiring having a line width of 70 nm or less is heated with a heating rate of 1K to 10K per second, and then the temperature is constantly maintained for a prescribed time duration.
    Type: Application
    Filed: April 18, 2014
    Publication date: October 16, 2014
    Applicant: IBARAKI UNIVERSITY
    Inventors: Yasushi SASAJIMA, Jin OONUKI, Suguru TASHIRO, Khyou Pin KHOO
  • SEMICONDUCTOR INTEGRATED-CIRCUIT DEVICE AND METHOD OF PRODUCING THE SAME
    Publication number: 20120146220
    Abstract: A semiconductor integrated-circuit device using the copper wiring having increased electromigration resistance, low resistivity, and a line width of 70 nm or less, is provided. The present invention is characterized by the annealing treatment wherein a copper wiring having a line width of 70 nm or less is heated with a heating rate of 1 K to 10 K per second, and then the temperature is constantly maintained for a prescribed time duration.
    Type: Application
    Filed: December 3, 2009
    Publication date: June 14, 2012
    Applicant: IBARAKI UNIVERSITY
    Inventors: Yasushi Sasajima, Jin Oonuki, Suguru Tashiro, Khyou Pin Khoo
  • Exchangeable continuous casting nozzle
    Patent number: 6568571
    Abstract: An exchangeable continuous casting nozzle used for a slide nozzle device connected to an upper nozzle disposed on a bottom portion of a container for molten metal, comprises a nozzle including a flange portion made of a refractory material having a through hole for receiving molten metal flowing out of the upper nozzle, and a tube body of a refractory material having another through hole following the through hole, and a metal protecting body including a metal casing portion surrounding the flange portion, a metal skirt portion surrounding an upper portion of the tube body following the flange portion, and metal reinforcing portions disposed on the slide nozzle device in parallel with a direction to detach/attach the nozzle, for reinforcing junction between the metal casing portion and the metal skirt.
    Type: Grant
    Filed: December 8, 2000
    Date of Patent: May 27, 2003
    Assignee: Tokyo Yogyo Kabushiki Kaisha & Akechi Ceramics Kabushiki Kaisha
    Inventors: Mitsuru Ando, Shigeaki Takahashi, Yasushi Sasajima
  • Exchangeable continuous casting nozzle
    Publication number: 20010035438
    Abstract: An exchangeable continuous casting nozzle used for a slide nozzle device connected to an upper nozzle disposed on a bottom portion of a container for molten metal, comprises a nozzle including a flange portion made of a refractory material having a through hole for receiving molten metal flowing out of the upper nozzle, and a tube body of a refractory material having another through hole following the through hole, and a metal protecting body including a metal casing portion surrounding the flange portion, a metal skirt portion surrounding an upper portion of the tube body following the flange portion, and metal reinforcing portions disposed on the slide nozzle device in parallel with a direction to detach/attach the nozzle, for reinforcing junction between the metal casing portion and the metal skirt.
    Type: Application
    Filed: December 8, 2000
    Publication date: November 1, 2001
    Inventors: Mitsuru Ando, Shigeaki Takahashi, Yasushi Sasajima