Patents by Inventor Masahiro Kuramoto

Masahiro Kuramoto 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: 7555699
    Abstract: A method for address error check in a storage control circuit having a storage unit operable to store data in a storage area specified by an address encodes a first code assigned to the address with an even number of bits, encodes a second code assigned to the data written to the storage unit with an odd number of bits, generates a check code based on the first and second codes and stores the check code in the storage unit in correspondence with the data written to the storage unit, and conducts an error check based on data read from the storage unit, a check code corresponding to the data read, and a read address, thus detecting a multi-bit address error.
    Type: Grant
    Filed: September 28, 2005
    Date of Patent: June 30, 2009
    Assignee: Fujitsu Limited
    Inventors: Masahiro Kuramoto, Masao Koyabu, Jun Tsuiki, Junichi Inagaki
  • Patent number: 7509482
    Abstract: A memory device stores entries waiting to be processed. Row numbers of matrix information correspond to storage positions within the memory device, column numbers correspond to positions within the order of the entries, and every matrix element corresponding to the storage position and the position within the order of the entry stored in this storage position has a predetermined value. An operation between the first vector information indicating storage positions of processable entries and each column of the matrix information is performed and the second vector information indicating positions within the order of the processable entries is generated. Then, a position to be processed is selected from among the positions of processable entries indicated by the second vector information, an element having the predetermined value in the column corresponding to the selected position is obtained, and an entry in the storage position corresponding to the element is processed.
    Type: Grant
    Filed: June 16, 2006
    Date of Patent: March 24, 2009
    Assignee: Fujitsu Limited
    Inventors: Takuji Takahashi, Masahiro Kuramoto
  • Patent number: 7475170
    Abstract: The present invention is a data transfer device, which comprises an input/output reception buffer, an input/output transmission buffer, a write data buffer, a read data buffer, a control information table, a write data storing process section, a write data transmission section, a read data buffer storing process section, an input/output transmission buffer storing process section and a control section that executes an access control for controlling the access to the memory by the write data transmission section and the read data buffer storing process section based on a control information table; thereby, a configuration optimum for both protocols of the memory bus and the input/output bus is obtained and the out-of-order execution is also achievable.
    Type: Grant
    Filed: July 25, 2005
    Date of Patent: January 6, 2009
    Assignee: Fujitsu Limited
    Inventors: Junichi Inagaki, Masao Koyabu, Jun Tsuiki, Masahiro Kuramoto
  • Publication number: 20070231549
    Abstract: To provide a conductive composite sheet which has a small difference in physical properties between the machine and transverse directions and has high rigidity and folding endurance and which can easily be thermally formed into a tray or an embossed carrier tape. A composite sheet comprising at least one layer each of a substrate layer (layer A) made of a polystyrene resin and an ABS resin as the main components, a reinforcing layer (layer B) made of an ABS resin as the main component, and a surface layer (layer C) made of, as the main component, a polystyrene resin which contains a conductive filler, wherein the surface on at least one side is the above surface layer (layer C). Further, the surface layer (layer C) is preferably made of a composition containing from 2 to 100 parts by mass of carbon black per 100 parts by mass of the polystyrene resin.
    Type: Application
    Filed: September 5, 2005
    Publication date: October 4, 2007
    Applicant: Denki Kagaku Kogy Kabushiki Kaisha
    Inventors: Takeshi Miyakawa, Yasushi Hirokawa, Masahiro Kuramoto
  • Publication number: 20070204136
    Abstract: A memory device stores entries waiting to be processed. Row numbers of matrix information correspond to storage positions within the memory device, column numbers correspond to positions within the order of the entries, and every matrix element corresponding to the storage position and the position within the order of the entry stored in this storage position has a predetermined value. An operation between the first vector information indicating storage positions of processable entries and each column of the matrix information is performed and the second vector information indicating positions within the order of the processable entries is generated. Then, a position to be processed is selected from among the positions of processable entries indicated by the second vector information, an element having the predetermined value in the column corresponding to the selected position is obtained, and an entry in the storage position corresponding to the element is processed.
    Type: Application
    Filed: June 16, 2006
    Publication date: August 30, 2007
    Applicant: FUJITSU LIMITED
    Inventors: Takuji Takahashi, Masahiro Kuramoto
  • Publication number: 20070116165
    Abstract: The present invention provides an asynchronous transmission device and asynchronous transmission method which reduce the synchronization processing overhead.
    Type: Application
    Filed: January 30, 2006
    Publication date: May 24, 2007
    Inventors: Jun Tsuiki, Masao Koyabu, Masahiro Kuramoto, Junichi Inagaki
  • Publication number: 20060236205
    Abstract: A method for address error check in a storage control circuit having a storage unit operable to store data in a storage area specified by an address encodes a first code assigned to the address with an even number of bits, encodes a second code assigned to the data written to the storage unit with an odd number of bits, generates a check code based on the first and second codes and stores the check code in the storage unit in correspondence with the data written to the storage unit, and conducts an error check based on data read from the storage unit, a check code corresponding to the data read, and a read address, thus detecting a multi-bit address error.
    Type: Application
    Filed: September 28, 2005
    Publication date: October 19, 2006
    Applicant: FUJITSU LIMITED
    Inventors: Masahiro Kuramoto, Masao Koyabu, Jun Tsuiki, Junichi Inagaki
  • Publication number: 20060212661
    Abstract: The present invention is a data transfer device, which comprises an input/output reception buffer, an input/output transmission buffer, a write data buffer, a read data buffer, a control information table, a write data storing process section, a write data transmission section, a read data buffer storing process section, an input/output transmission buffer storing process section and a control section that executes an access control for controlling the access to the memory by the write data transmission section and the read data buffer storing process section based on a control information table; thereby, a configuration optimum for both protocols of the memory bus and the input/output bus is obtained and the out-of-order execution is also achievable.
    Type: Application
    Filed: July 25, 2005
    Publication date: September 21, 2006
    Applicant: Fujitsu Limited
    Inventors: Junichi Inagaki, Masao Koyabu, Jun Tsuiki, Masahiro Kuramoto