Patents by Inventor Katsuhiko Naka

Katsuhiko Naka 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).

  • Method of fabricating multilayer ceramic substrate
    Patent number: 7618843
    Abstract: A method of fabricating a multilayer ceramic substrate includes stacking one or a plurality of unfired ceramic greensheets on one or both sides of a previously fired ceramic substrate, thereby forming a stack, each unfired ceramic greensheet having a firing temperature substantially equal to or lower than a firing temperature of the previously fired ceramic substrate, stacking a restricting greensheet on the unfired ceramic greensheet composing an outermost layer of the stack, the restricting greensheet having a higher firing temperature than each unfired ceramic greensheet, firing the stack at the firing temperature of the unfired ceramic green sheets with or without pressure applied via the restricting greensheet while the stack is under restriction by the restricting greensheet, thereby integrating the stack, and eliminating remainders of the restricting greensheet after the firing step.
    Type: Grant
    Filed: February 3, 2005
    Date of Patent: November 17, 2009
    Assignee: Murata Manufacturing Co., Ltd
    Inventors: Satoshi Nakano, Yoshio Mizuno, Junzo Fukuta, Katsuhiko Naka
  • Method of fabricating multilayer ceramic substrate
    Publication number: 20050199331
    Abstract: A method of fabricating a multilayer ceramic substrate includes stacking one or a plurality of unfired ceramic greensheets on one or both sides of a previously fired ceramic substrate, thereby forming a stack, each unfired ceramic greensheet having a firing temperature substantially equal to or lower than a firing temperature of the previously fired ceramic substrate, stacking a restricting greensheet on the unfired ceramic greensheet composing an outermost layer of the stack, the restricting greensheet having a higher firing temperature than each unfired ceramic greensheet, firing the stack at the firing temperature of the unfired ceramic green sheets with or without pressure applied via the restricting greensheet while the stack is under restriction by the restricting greensheet, thereby integrating the stack, and eliminating remainders of the restricting greensheet after the firing step.
    Type: Application
    Filed: February 3, 2005
    Publication date: September 15, 2005
    Inventors: Satoshi Nakano, Yoshio Mizuno, Junzo Fukuta, Katsuhiko Naka
  • Method of fabricating multilayer ceramic substrate
    Patent number: 6852569
    Abstract: A method of fabricating a multilayer ceramic substrate includes stacking one or a plurality of unfired ceramic greensheets on one or both sides of a previously fired ceramic substrate, thereby forming a stack, each unfired ceramic greensheet having a firing temperature substantially equal to or lower than a firing temperature of the previously fired ceramic substrate, stacking a restricting greensheet on the unfired ceramic greensheet composing an outermost layer of the stack, the restricting greensheet having a higher firing temperature than each unfired ceramic greensheet, firing the stack at the firing temperature of the unfired ceramic green sheets with or without pressure applied via the restricting greensheet while the stack is under restriction by the restricting greensheet, thereby integrating the stack, and eliminating remainders of the restricting greensheet after the firing step.
    Type: Grant
    Filed: October 28, 2002
    Date of Patent: February 8, 2005
    Assignee: Murata Manufacturing Co., Ltd.
    Inventors: Satoshi Nakano, Yoshio Mizuno, Junzo Fukuta, Katsuhiko Naka
  • Method of fabricating multilayer ceramic substrate
    Publication number: 20030100146
    Abstract: A method of fabricating a multilayer ceramic substrate includes stacking one or a plurality of unfired ceramic greensheets on one or both sides of a previously fired ceramic substrate, thereby forming a stack, each unfired ceramic greensheet having a firing temperature substantially equal to or lower than a firing temperature of the previously fired ceramic substrate, stacking a restricting greensheet on the unfired ceramic greensheet composing an outermost layer of the stack, the restricting greensheet having a higher firing temperature than each unfired ceramic greensheet, firing the stack at the firing temperature of the unfired ceramic green sheets with or without pressure applied via the restricting greensheet while the stack is under restriction by the restricting greensheet, thereby integrating the stack, and eliminating remainders of the restricting greensheet after the firing step.
    Type: Application
    Filed: October 28, 2002
    Publication date: May 29, 2003
    Applicant: SUMITOMO METAL (SMI) ELECTRONICS DEVICES INC.
    Inventors: Satoshi Nakano, Yoshio Mizuno, Junzo Fukuta, Katsuhiko Naka