Patents by Inventor Tetsuya Kitame

Tetsuya Kitame 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: 6633508
    Abstract: Two memory cells in different memory arrays are simultaneously selected in accordance with the designation of a specific write operation mode to associate a logic 1 of a write signal with a state in which an electric charge exists in each capacitor. Further, a logic 0 of the write signal is associated with a state in which no electric charge exists in the capacitor to write the same write signal. Two dynamic memory cells in different memory arrays are simultaneously selected in accordance with the designation of a specific read operation mode to associate a state in which an electric charge exists in a capacitor of each dynamic memory cell with a logic 1 of a read signal and associate a state in which no electric charge exists in the capacitor with a logic 0 of the read signal in response to a write operation. Thus, the logics 1 of the two read signals are preferentially output.
    Type: Grant
    Filed: August 28, 2001
    Date of Patent: October 14, 2003
    Assignees: Hitachi, Ltd., Hitachi ULSI Engineering Corp.
    Inventors: Masaya Muranaka, Shinichi Miyatake, Yukihide Suzuki, Kanehide Kenmizaki, Makoto Morino, Tetsuya Kitame
  • Publication number: 20020031036
    Abstract: Two memory cells in different memory arrays are simultaneously selected in accordance with the designation of a specific write operation mode to associate a logic 1 of a write signal with a state in which an electric charge exists in each capacitor. Further, a logic 0 of the write signal is associated with a state in which no electric charge exists in the capacitor to write the same write signal. Two dynamic memory cells in different memory arrays are simultaneously selected in accordance with the designation of a specific read operation mode to associate a state in which an electric charge exists in a capacitor of each dynamic memory cell with a logic 1 of a read signal and associate a state in which no electric charge exists in the capacitor with a logic 0 of the read signal in response to a write operation. Thus, the logics 1 of the two read signals are preferentially output.
    Type: Application
    Filed: August 28, 2001
    Publication date: March 14, 2002
    Inventors: Masaya Muranaka, Shinichi Miyatake, Yukihide Suzuki, Kanehide Kenmizaki, Makoto Morino, Tetsuya Kitame
  • Patent number: 6282141
    Abstract: Two memory cells in different memory arrays are simultaneously selected in accordance with the designation of a specific write operation mode to associate a logic 1 of a write signal with a state in which an electric charge exists in each capacitor. Further, a logic 0 of the write signal is associated with a state in which no electric charge exists in the capacitor to write the same write signal. Two dynamic memory cells in different memory arrays are simultaneously selected in accordance with the designation of a specific read operation mode to associate a state in which an electric charge exists in a capacitor of each dynamic memory cell with a logic 1 of a read signal and associate a state in which no electric charge exists in the capacitor with a logic 0 of the read signal in response to a write operation. Thus, the logics 1 of the two read signals are preferentially output.
    Type: Grant
    Filed: May 15, 2000
    Date of Patent: August 28, 2001
    Assignees: Hitachi, Ltd., Hitachi ULSI Engineering Corp.
    Inventors: Masaya Muranaka, Shinichi Miyatake, Yukihide Suzuki, Kanehide Kenmizaki, Makoto Morino, Tetsuya Kitame
  • Patent number: 6064605
    Abstract: Two memory cells in different memory arrays are simultaneously selected in accordance with the designation of a specific write operation mode to associate a logic 1 of a write signal with a state in which an electric charge exists in each capacitor. Further, a logic 0 of the write signal is associated with a state in which no electric charge exists in the capacitor to write the same write signal. Two dynamic memory cells in different memory arrays are simultaneously selected in accordance with the designation of a specific read operation mode to associate a state in which an electric charge exists in a capacitor of each dynamic memory cell with a logic 1 of a read signal and associate a state in which no electric charge exists in the capacitor with a logic 0 of the read signal in response to a write operation. Thus, the logics 1 of the two read signals are preferentially output.
    Type: Grant
    Filed: September 14, 1999
    Date of Patent: May 16, 2000
    Assignees: Hitachi, Ltd., Hitachi ULSI Engineering Corp.
    Inventors: Masaya Muranaka, Shinichi Miyatake, Yukihide Suzuki, Kanehide Kenmizaki, Makoto Morino, Tetsuya Kitame
  • Patent number: 5969996
    Abstract: Two memory cells in different memory arrays are simultaneously selected in accordance with the designation of a specific write operation mode to associate a logic 1 of a write signal with a state in which an electric charge exists in each capacitor. Further, a logic 0 of the write signal is associated with a state in which no electric charge exists in the capacitor to write the same write signal. Two dynamic memory cells in different memory arrays are simultaneously selected in accordance with the designation of a specific read operation mode to associate a state in which an electric charge exists in a capacitor of each dynamic memory cell with a logic 1 of a read signal and associate a state in which no electric charge exists in the capacitor with a logic 0 of the read signal in response to a write operation. Thus, the logics 1 of the two read signals are preferentially output.
    Type: Grant
    Filed: August 31, 1998
    Date of Patent: October 19, 1999
    Assignee: Hiachi, Ltd.
    Inventors: Masaya Muranaka, Shinichi Miyatake, Yukihide Suzuki, Kanehide Kenmizaki, Makoto Morino, Tetsuya Kitame
  • Patent number: 5818784
    Abstract: Two memory cells in different memory arrays are simultaneously selected in accordance with the designation of a specific write operation mode to associate a logic 1 of a write signal with a state in which an electric charge exists in each capacitor. Further, a logic 0 of the write signal is associated with a state in which no electric charge exists in the capacitor to write the same write signal. Two dynamic memory cells in different memory arrays are simultaneously selected in accordance with the designation of a specific read operation mode to associate a state in which an electric charge exists in a capacitor of each dynamic memory cell with a logic 1 of a read signal and associate a state in which no electric charge exists in the capacitor with a logic 0 of the read signal in response to a write operation. Thus, the logics 1 of the two read signals are preferentially output.
    Type: Grant
    Filed: April 26, 1996
    Date of Patent: October 6, 1998
    Assignees: Hitachi, Ltd., Hitachi ULSI Engineering Corp.
    Inventors: Masaya Muranaka, Shinichi Miyatake, Yukihide Suzuki, Kanehide Kenmizaki, Makoto Morino, Tetsuya Kitame
  • Patent number: 5598373
    Abstract: A defect remedy LSI mounted on a memory module, comprising: an input interface portion for capturing address and control signals, the input interface portion being the same as that of a dynamic RAM; an input/output interface portion corresponding to a data bus of a memory device comprised of a plurality of dynamic random access memories; a memory circuit to which a chip address and an X defective address of any of the plurality of random access memories are electrically written, the memory circuit being substantially made nonvolatile; a redundancy remedy RAM portion composed of a static RAM wherein a word line is selected by a compare match signal between an X address signal and the defective address of the memory circuit, the X address signal and the defective address being captured via the input interface portion, and a column is selected by a Y address signal captured via the input interface portion; a selecting portion for connecting a data input/output bus of the redundancy remedy RAM portion to an input
    Type: Grant
    Filed: June 7, 1995
    Date of Patent: January 28, 1997
    Assignees: Hitachi, Ltd., Hitachi ULSI Engineering Corp.
    Inventors: Shoji Wada, Kanehide Kenmizaki, Masaya Muranaka, Masahiro Ogata, Hidetomo Aoyagi, Tetsuya Kitame, Masahiro Katayama, Shoji Kubono, Yukihide Suzuki, Makoto Morino, Sinichi Miyatake, Seiichi Shundo, Yoshihisa Koyama, Nobuhiko Ohno