Patents by Inventor Ryo Sudo

Ryo Sudo 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: 8391044
    Abstract: According to one embodiment, a semiconductor memory device includes a first active area in a semiconductor substrate, memory cells on the semiconductor substrate, first bit lines, first line, a second line, a third line, and a fourth line. The first line extends in a direction that intersects with the first bit lines and transmits a control potential applied to unselected ones of second bit lines connected to the memory cells. The second line is electrically connected to the first line and extends along the first bit lines. The third line is electrically connected to the second line and extends in a direction that intersects with the first bit lines. The fourth line electrically connects both the third line and portions in the active area corresponding to nodes to which the control potential is applied.
    Type: Grant
    Filed: March 21, 2011
    Date of Patent: March 5, 2013
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Kouyou Funayama, Ryo Sudo
  • Publication number: 20110249482
    Abstract: According to one embodiment, a semiconductor memory device includes a first active area in a semiconductor substrate, memory cells on the semiconductor substrate, first bit lines, first line, a second line, a third line, and a fourth line. The first line extends in a direction that intersects with the first bit lines and transmits a control potential applied to unselected ones of second bit lines connected to the memory cells. The second line is electrically connected to the first line and extends along the first bit lines. The third line is electrically connected to the second line and extends in a direction that intersects with the first bit lines. The fourth line electrically connects both the third line and portions in the active area corresponding to nodes to which the control potential is applied.
    Type: Application
    Filed: March 21, 2011
    Publication date: October 13, 2011
    Inventors: Kouyou FUNAYAMA, Ryo Sudo
  • Patent number: 7996821
    Abstract: A data processor having a debugging aid function capable of monitoring a plurality of kinds of internal buses from the outside and identifying each of the buses monitored is provided. A central processing unit (CPU), a debugging aid module, and other circuit modules are mounted on a semiconductor chip. The debugging aid module selects an information transmitting path in accordance with a trace condition from a plurality of information transmitting paths used for the operation of a central processing unit (CPU) or the like, holds trace information obtained according to the trace condition from the selected information transmitting path together with attribute information of the trace information in a buffer circuit, and outputs the information serially to the outside of the semiconductor chip. A plurality of kinds of internal buses can be monitored on the outside, and each of the buses monitored can be identified.
    Type: Grant
    Filed: August 16, 2005
    Date of Patent: August 9, 2011
    Assignees: Renesas Electronics Corporation, Hitachi ULSI Systems Co., Ltd.
    Inventors: Ryo Sudo, Shigezumi Matsui, Yasunori Matsumoto
  • Publication number: 20070299537
    Abstract: Cultured cells flat-cultured on a permeable sheet is stacked on other flat-cultured cells together with the permeable sheet to construct a three-dimensional tissue. The three-dimensional tissue is transplanted into a living body. Alternatively, the three-dimensional tissue is stacked up in an artificial organ device to construct a stacked-up, three-dimensional bioartificial organ module. Colony form of the cultured cell can be controlled by using a microporous sheet as the permeable sheet and controlling positions of pores in the microporous sheet to design the form of the artificial organ.
    Type: Application
    Filed: November 12, 2004
    Publication date: December 27, 2007
    Inventors: Ryo Sudo, Kazuo Tanishita, Mariko Ikeda, Toshihiro Mitaka
  • Patent number: 7003763
    Abstract: A data processor having a debugging aid function capable of monitoring a plurality of kinds of internal buses from the outside and identifying each of the buses monitored is provided. A central processing unit (CPU), a debugging aid module, and other circuit modules are mounted on a semiconductor chip. The debugging aid module selects an information transmitting path in accordance with a trace condition from a plurality of information transmitting paths used for the operation of a central processing unit (CPU) or the like, holds trace information obtained according to the trace condition from the selected information transmitting path together with attribute information of the trace information in a buffer circuit, and outputs the information serially to the outside of the semiconductor chip. A plurality of kinds of internal buses can be monitored on the outside, and each of the buses monitored can be identified.
    Type: Grant
    Filed: November 2, 2001
    Date of Patent: February 21, 2006
    Assignees: Renesas Technology Corp., Hitachi ULSI Systems Co., Ltd.
    Inventors: Ryo Sudo, Shigezumi Matsui, Yasunori Matsumoto
  • Publication number: 20050289515
    Abstract: A data processor having a debugging aid function capable of monitoring a plurality of kinds of internal buses from the outside and identifying each of the buses monitored is provided. A central processing unit (CPU), a debugging aid module, and other circuit modules are mounted on a semiconductor chip. The debugging aid module selects an information transmitting path in accordance with a trace condition from a plurality of information transmitting paths used for the operation of a central processing unit (CPU) or the like, holds trace information obtained according to the trace condition from the selected information transmitting path together with attribute information of the trace information in a buffer circuit, and outputs the information serially to the outside of the semiconductor chip. A plurality of kinds of internal buses can be monitored on the outside, and each of the buses monitored can be identified.
    Type: Application
    Filed: August 16, 2005
    Publication date: December 29, 2005
    Inventors: Ryo Sudo, Shigezumi Matsui, Yasunori Matsumoto
  • Publication number: 20020059511
    Abstract: A data processor having a debugging aid function capable of monitoring a plurality of kinds of internal buses from the outside and identifying each of the buses monitored is provided. A central processing unit (CPU), a debugging aid module, and other circuit modules are mounted on a semiconductor chip. The debugging aid module selects an information transmitting path in accordance with a trace condition from a plurality of information transmitting paths used for the operation of a central processing unit (CPU) or the like, holds trace information obtained according to the trace condition from the selected information transmitting path together with attribute information of the trace information in a buffer circuit, and outputs the information serially to the outside of the semiconductor chip. A plurality of kinds of internal buses can be monitored on the outside, and each of the buses monitored can be identified.
    Type: Application
    Filed: November 2, 2001
    Publication date: May 16, 2002
    Inventors: Ryo Sudo, Shigezumi Matsui, Yasunori Matsumoto
  • Patent number: 6034567
    Abstract: A differential amplifier comprises an n-channel MOS transistor to the gate of which an input voltage VIN1 is fed, and an n-channel MOS transistor to the gate of which an input voltage VIN2 is fed. A p-channel MOS transistor arranged in such a manner that, to the source thereof, a power source voltage Vcc is fed, and the gate and drain thereof are connected to the drain of the MOS transistor, and a p-channel MOS transistor arranged in such a manner that the gate thereof is connected to the drain of the MOS transistor, the drain thereof is connected to the drain of the MOS transistor, and the voltage at this drain is outputted as an output voltage VOUT, and the output current I of a constant-current source is set so that the transistors constituting a differential amplifier may operate in a weak inversion zone.
    Type: Grant
    Filed: February 26, 1998
    Date of Patent: March 7, 2000
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Akira Umezawa, Shigeru Atsumi, Norihisa Arai, Hironori Banba, Ryo Sudo