Patents by Inventor Koichiro Ninomiya

Koichiro Ninomiya 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: 6934214
    Abstract: Memory array areas, each including a plurality of bit lines provided along a first direction, a plurality of word lines provided along a second direction orthogonal to the first direction, and a plurality of memory cells provided in association with portions where the plurality of bit lines and the plurality of word-lines intersect, respectively, are provided in plural form in the first direction and are disposed alternately relative to sense amplifier areas. First common input/output lines connected through bit lines and first selection circuits associated with such sense amplifier areas are provided. Second common input/output lines connected through the plurality of first common input/output lines and second selection circuits corresponding to a plurality of memory arrays disposed along the first direction are provided. Each of the second common input/output lines is extended to form a signal transfer channel for transferring a signal read from each memory cell and a signal written therein.
    Type: Grant
    Filed: June 25, 2004
    Date of Patent: August 23, 2005
    Assignees: Hitachi, Ltd., Hitachi ULSI Systems Co., Ltd.
    Inventors: Hiroki Fujisawa, Shuichi Kubouchi, Koichiro Ninomiya
  • Publication number: 20040228176
    Abstract: Memory array areas, each including a plurality of bit lines provided along a first direction, a plurality of word lines provided along a second direction orthogonal to the first direction, and a plurality of memory cells provided in association with portions where the plurality of bit lines and the plurality of word-lines intersect, respectively, are provided in plural form in the first direction and are disposed alternately relative to sense amplifier areas. First common input/output lines connected through bit lines and first selection circuits associated with such sense amplifier areas are provided. Second common input/output lines connected through the plurality of first common input/output lines and second selection circuits corresponding to a plurality of memory arrays disposed along the first direction are provided. Each of the second common input/output lines is extended to form a signal transfer channel for transferring a signal read from each memory cell and a signal written therein.
    Type: Application
    Filed: June 25, 2004
    Publication date: November 18, 2004
    Inventors: Hiroki Fujisawa, Shuichi Kubouchi, Koichiro Ninomiya
  • Patent number: 6765844
    Abstract: Memory array areas, each including a plurality of bit lines provided along a first direction, a plurality of word lines provided along a second direction orthogonal to the first direction, and a plurality of memory cells provided in association with portions where the plurality of bit lines and the plurality of word-lines intersect, respectively, are provided in plural form in the first direction and are disposed alternately relative to sense amplifier areas. First common input/output lines connected through bit lines and first selection circuits associated with such sense amplifier areas are provided. Second common input/output lines connected through the plurality of first common input/output lines and second selection circuits corresponding to a plurality of memory arrays disposed along the first direction are provided. Each of the second common input/output lines is extended to form a signal transfer channel for transferring a signal read from each memory cell and a signal written therein.
    Type: Grant
    Filed: September 10, 2003
    Date of Patent: July 20, 2004
    Assignees: Hitachi, Ltd., Hitachi ULSI Systems Co., Ltd.
    Inventors: Hiroki Fujisawa, Shuichi Kubouchi, Koichiro Ninomiya
  • Publication number: 20040047229
    Abstract: Memory array areas, each including a plurality of bit lines provided along a first direction, a plurality of word lines provided along a second direction orthogonal to the first direction, and a plurality of memory cells provided in association with portions where the plurality of bit lines and the plurality of word-lines intersect, respectively, are provided in plural form in the first direction and are disposed alternately relative to sense amplifier areas. First common input/output lines connected through bit lines and first selection circuits associated with such sense amplifier areas are provided. Second common input/output lines connected through the plurality of first common input/output lines and second selection circuits corresponding to a plurality of memory arrays disposed along the first direction are provided. Each of the second common input/output lines is extended to form a signal transfer channel for transferring a signal read from each memory cell and a signal written therein.
    Type: Application
    Filed: September 10, 2003
    Publication date: March 11, 2004
    Inventors: Hiroki Fujisawa, Shuichi Kubouchi, Koichiro Ninomiya
  • Patent number: 6665203
    Abstract: Memory array areas, each including a plurality of bit lines provided along a first direction, a plurality of word lines provided along a second direction orthogonal to the first direction, and a plurality of memory cells provided in association with portions where the plurality of bit lines and the plurality of word-lines intersect, respectively, are provided in plural form in the first direction and are disposed alternately relative to sense amplifier areas. First common input/output lines connected through bit lines and first selection circuits associated with such sense amplifier areas are provided. Second common input/output lines connected through the plurality of first common input/output lines and second selection circuits corresponding to a plurality of memory arrays disposed along the first direction are provided. Each of the second common input/output lines is extended to form a signal transfer channel for transferring a signal read from each memory cell and a signal written therein.
    Type: Grant
    Filed: May 30, 2001
    Date of Patent: December 16, 2003
    Assignees: Hitachi, Ltd., Hitachi ULSI Systems Co., Ltd.
    Inventors: Hiroki Fujisawa, Shuichi Kubouchi, Koichiro Ninomiya
  • Publication number: 20020001215
    Abstract: Memory array areas each including a plurality of bit lines provided along a first direction, a plurality of word lines provided along a second direction orthogonal to the first direction, and a plurality of memory cells provided in association with portions where the plurality of bit lines and the plurality of word lines intersect respectively, are provided in plural form in the first direction and disposed alternately relative to sense amplifier areas. First common input/output lines connected through bit lines and first selection circuits associated with such sense amplifier areas are provided. Second common input/output lines connected through the plurality of first common input/output lines and second selection circuits corresponding to a plurality of memory arrays disposed along the first direction are provided. Each of the second common input/output lines is extended to form a signal transfer channel for transferring a signal read from each memory cell and a signal written therein.
    Type: Application
    Filed: May 30, 2001
    Publication date: January 3, 2002
    Inventors: Hiroki Fujisawa, Shuichi Kubouchi, Koichiro Ninomiya