Patents by Inventor Eisaku Takahashi

Eisaku Takahashi 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: 8671264
    Abstract: A storage control device for controlling the storage device including a medium for storing data, logical address information, and address translation information and a memory for storing the address translation information read from the medium includes a first receiver for receiving a write request including logical address information, a first sending module for sending a read request including the logical address information of the write request to the storage device, a second receiver for receiving data and logical address information stored in the medium in accordance with the read request from the storage device, and a second sending module for sending an instruction to cause the storage device to write the address translation information stored in the medium into the memory when the logical address information received by the second receiver is different from logical address information included in the write request.
    Type: Grant
    Filed: August 30, 2010
    Date of Patent: March 11, 2014
    Assignee: Fujitsu Limited
    Inventors: Eisaku Takahashi, Teiji Yoshida
  • Patent number: 8089712
    Abstract: In a RAID apparatus, an error determining processing unit determines whether an HDD is normal based on an error determining condition obtained from an amount of increase of NON MEDIUM ERROR COUNT and the number of accesses memorized on a control table, and detects the HDD with abnormal performance.
    Type: Grant
    Filed: January 29, 2009
    Date of Patent: January 3, 2012
    Assignee: Fujitsu Limited
    Inventors: Mikio Ito, Eisaku Takahashi, Hidejirou Daikokuya, Kazuhiko Ikeuchi, Hideo Takahashi, Yoshihito Konta, Norihide Kubota
  • Publication number: 20110055475
    Abstract: A storage control device for controlling the storage device including a medium for storing data, logical address information, and address translation information and a memory for storing the address translation information read from the medium includes a first receiver for receiving a write request including logical address information, a first sending module for sending a read request including the logical address information of the write request to the storage device, a second receiver for receiving data and logical address information stored in the medium in accordance with the read request from the storage device, and a second sending module for sending an instruction to cause the storage device to write the address translation information stored in the medium into the memory when the logical address information received by the second receiver is different from logical address information included in the write request.
    Type: Application
    Filed: August 30, 2010
    Publication date: March 3, 2011
    Applicant: FUJITSU LIMITED
    Inventors: Eisaku TAKAHASHI, Teiji Yoshida
  • Patent number: 7849891
    Abstract: A device for measuring a hard granular object. The device includes a measuring vessel, a holder, a shutter, and a pressing means for pressing the holder against the measuring vessel. The measuring vessel includes a first face, a second face parallel to the first face, and a space formed between the first and second faces for receiving hard granular object supplied from first face side. The holder is located on the side of the first face., includes a through hole communicable with the space, and is slidable along the first face. The shutter is located on the side of the second face, includes a through hole communicable with the space, and is movable parallel to the second face.
    Type: Grant
    Filed: August 5, 2004
    Date of Patent: December 14, 2010
    Assignee: Kureha Corporation
    Inventors: Yoshitugi Hashiba, Hitoshi Takahashi, Eisaku Takahashi
  • Patent number: 7805659
    Abstract: A method of controlling a RAID system including a plurality of disk devices is provided. The method allows for reading data recorded onto an area adjacent to an area where a write error occurs when the write error is detected while data is written into the disk device. When an error is detected from the data read from the adjacent area, the data recorded onto the adjacent area is restored by using a RAID function and the restored data is written into the adjacent area.
    Type: Grant
    Filed: September 26, 2006
    Date of Patent: September 28, 2010
    Assignee: Fujitsu Limited
    Inventor: Eisaku Takahashi
  • Patent number: 7779611
    Abstract: An object of the present invention is to provide a packaging apparatus for packaging a granular object having adsorption ability, which does not spill out of the package when the package is opened. An apparatus for packaging a granular object having adsorption ability comprises a heating device 12 for heating a granular object having adsorption ability, a charging device 30 for charging the granular object into a storage bag 90 having an open end, a sealing device 40 for sealing the open end of the storage bag 90 into which the granular object has been charged, and a cooling device 70 for cooling a storage bag 91 with the granular object kept to be gathered at the bottom of the storage bag 91, wherein the heating device 12 is located upstream of the sealing device 40 along the flowing direction of the granular object.
    Type: Grant
    Filed: August 5, 2004
    Date of Patent: August 24, 2010
    Assignee: Kureha Corporation
    Inventors: Yoshitugi Hashiba, Hitoshi Takahashi, Eisaku Takahashi
  • Publication number: 20090290247
    Abstract: In a RAID apparatus, an error determining processing unit determines whether an HDD is normal based on an error determining condition obtained from an amount of increase of NON MEDIUM ERROR COUNT and the number of accesses memorized on a control table, and detects the HDD with abnormal performance.
    Type: Application
    Filed: January 29, 2009
    Publication date: November 26, 2009
    Applicant: FUJITSU LIMITED
    Inventors: Mikio Ito, Eisaku Takahashi, Hidejirou Daikokuya, Kazuhiko Ikeuchi, Hideo Takahashi, Yoshihito Konta, Norihide Kubota
  • Patent number: 7590884
    Abstract: In a storage system, a disk device performs recovery and transfers read data to a control device, and the control device judges the validity of the recovery to prevent a transfer of erroneous data. A control device read-accesses a disk device, and the disk device returns read data and a recovered read error response. A control device, at the time of an initial recovered read error, performs a retry of a similar command, and if an error does not occur for read commands including the retry read command, judges the data to be valid. Uncertain data (suspect data) upon occurrence of a recovered read error is restored through disk retry, and accurate read data can be transferred to the host.
    Type: Grant
    Filed: September 29, 2005
    Date of Patent: September 15, 2009
    Assignee: Fujitsu Limited
    Inventors: Hidejirou Daikokuya, Hideo Takahashi, Yoshihito Konta, Yasutake Sato, Hiroaki Sato, Norihide Kubota, Masami Ikeno, Tadashi Hirano, Tsuyoshi Nakagami, Yuuji Noda, Yusuke Inai, Naoyoshi Toshine, Mikio Ito, Kazuhiko Ikeuchi, Yukihiro Yoshiya, Nobuyuki Kikuchi, Masaru Shimmitsu, Eisaku Takahashi
  • Patent number: 7415636
    Abstract: A recording-medium controlling apparatus that performs a read-access and a write-access of a recording medium in response to access request from a higher-level apparatus, detects a read error that occurs at a time of the read access, and performs a replacement processing, includes an error detecting unit that tries a plurality of the read accesses to an error location on the recording medium to detect whether the read error recurs a plurality of times; and a replacement processing unit that performs, when the error detecting unit detects that the read error recurs a plurality of times, a replacement processing for the error location.
    Type: Grant
    Filed: December 22, 2004
    Date of Patent: August 19, 2008
    Assignee: Fujitsu Limited
    Inventor: Eisaku Takahashi
  • Publication number: 20080195886
    Abstract: A disk controller and method thereof having a configuration where when a disk apparatus fails, information on the failed disk apparatus is prevented from unauthorized access including a read operation. The disk controller in a disk system connected with a plurality of disk apparatuses includes a control information storage area overwrite unit issuing an instruction to overwrite a control information storage area of a disk apparatus with a predetermined value when a failure of the disk apparatus is detected.
    Type: Application
    Filed: January 29, 2008
    Publication date: August 14, 2008
    Applicant: FUJITSU LIMITED
    Inventor: Eisaku Takahashi
  • Publication number: 20070289257
    Abstract: An object of the present invention is to provide a packaging apparatus for packaging a granular object having adsorption ability, which does not spill out of the package when the package is opened. An apparatus for packaging a granular object having adsorption ability comprises a heating device 12 for heating a granular object having adsorption ability, a charging device 30 for charging the granular object into a storage bag 90 having an open end, a sealing device 40 for sealing the open end of the storage bag 90 into which the granular object has been charged, and a cooling device 70 for cooling a storage bag 91 with the granular object kept to be gathered at the bottom of the storage bag 91, wherein the heating device 12 is located upstream of the sealing device 40 along the flowing direction of the granular object.
    Type: Application
    Filed: August 5, 2004
    Publication date: December 20, 2007
    Inventors: Yoshitugi Hashiba, Hitoshi Takahashi, Eisaku Takahashi
  • Publication number: 20070250757
    Abstract: A method of controlling a RAID system including a plurality of disk devices is provided. The method allows for reading data recorded onto an area adjacent to an area where a write error occurs when the write error is detected while data is written into the disk device. When an error is detected from the data read from the adjacent area, the data recorded onto the adjacent area is restored by using a RAID function and the restored data is written into the adjacent area.
    Type: Application
    Filed: September 26, 2006
    Publication date: October 25, 2007
    Applicant: Fujitsu Limited
    Inventor: Eisaku Takahashi
  • Publication number: 20070199282
    Abstract: To provide a packaging apparatus for packaging a granular object which can reduce the residual air in a package to prevent expansion thereof with an increase in temperature after sealing. The packaging apparatus comprises a charging device 30 for charging a granular object having adsorption ability into a storage bag 90 having an open end, an air removing device 50 for expelling air from the storage bag 90 into which the granular object has been charged, and a sealing device 40 for sealing the open end of the storage bag 90 from which air has been expelled, wherein the sealing device 40 is actuated with a slight delay after air has been expelled from the storage bag 90 by the air removing device 50.
    Type: Application
    Filed: August 5, 2004
    Publication date: August 30, 2007
    Inventors: Yoshitugi Hashiba, Hitoshi Takahashi, Eisaku Takahashi
  • Publication number: 20070095425
    Abstract: The present invention provides a device for measuring a hard granular object having a measuring vessel, a holder and a shutter which cannot be damaged by a granule caught between them when used to measure a granular object with high hardness and a method for measuring a hard granular object therewith. The present invention also provides a device and a method for removing fine granules from a hard granular object such as spherical adsorptive carbon containing fine granules and measuring the hard granular object.
    Type: Application
    Filed: August 5, 2004
    Publication date: May 3, 2007
    Inventors: Yoshitugi Hashiba, Hitoshi Takahashi, Eisaku Takahashi
  • Publication number: 20070002482
    Abstract: In a storage system, a disk device performs recovery and transfers read data to a control device, and the control device judges the validity of the recovery to prevent a transfer of erroneous data. A control device read-accesses a disk device, and the disk device returns read data and a recovered read error response. A control device, at the time of an initial recovered read error, performs a retry of a similar command, and if an error does not occur for read commands including the retry read command, judges the data to be valid. Uncertain data (suspect data) upon occurrence of a recovered read error is restored through disk retry, and accurate read data can be transferred to the host.
    Type: Application
    Filed: September 29, 2005
    Publication date: January 4, 2007
    Applicant: FUJITSU LIMITED
    Inventors: Hidejirou Daikokuya, Hideo Takahashi, Yoshihito Konta, Yasutake Sato, Hiroaki Sato, Norihide Kubota, Masami Ikeno, Tadashi Hirano, Tsuyoshi Nakagami, Yuuji Noda, Yusuke Inai, Naoyoshi Toshine, Mikio Ito, Kazuhiko Ikeuchi, Yukihiro Yoshiya, Nobuyuki Kikuchi, Masaru Shimmitsu, Eisaku Takahashi
  • Publication number: 20060075291
    Abstract: A recording-medium controlling apparatus that performs a read-access and a write-access of a recording medium in response to access request from a higher-level apparatus, detects a read error that occurs at a time of the read access, and performs a replacement processing, includes an error detecting unit that tries a plurality of the read accesses to an error location on the recording medium to detect whether the read error recurs a plurality of times; and a replacement processing unit that performs, when the error detecting unit detects that the read error recurs a plurality of times, a replacement processing for the error location.
    Type: Application
    Filed: December 22, 2004
    Publication date: April 6, 2006
    Applicant: Fujitsu Limited
    Inventor: Eisaku Takahashi
  • Publication number: 20060048444
    Abstract: Disclosed is a process for producing a mycelium of a Matsutake fungus, comprising the step of cultivating a mycelium on a small scale under agitation without aeration or with aeration at a low rate of less than 0.05 vvm in a liquid medium. According to the process, a large number of mycelia can be produced without a loss of physiological activities.
    Type: Application
    Filed: October 24, 2003
    Publication date: March 9, 2006
    Applicant: KUREHA CHEMICAL INDUSTRY CO., LTD.
    Inventors: Hiroyuki Kitagou, Nobuo Ootomo, Yasumitu Nemoto, Eisaku Takahashi, Junji Hiwatashi, Kenichi Matsunaga
  • Patent number: 6556367
    Abstract: High-accuracy position signals are obtained by correcting nonlinear position sensitivities of two phase signals demodulated from two-phase servo information, into linear ones. A position sensitivity adjusting unit detects the signal level at the intersection of position signals N and Q having different phases by a predetermined track pitch which are demodulated from read signals of two-phase servo information buried and recorded in a disk medium and makes an adjustment of the gain of an AGC amplifier so that the intersection signal level coincides with a predetermined level. A sensitivity correcting unit corrects into linear position sensitivities the nonlinear position sensitivities approximated by sine functions or cosine functions relative to the actual track position X of the two position signals N and Q output from the AGC amplifier.
    Type: Grant
    Filed: December 28, 2000
    Date of Patent: April 29, 2003
    Assignee: Fujitsu Limited
    Inventor: Eisaku Takahashi
  • Publication number: 20020068349
    Abstract: A novel recombinant trehalose phosphorylase is provided. A gene encoding trehalose phosphorylase has been discovered. A vector containing the gene is constructed, a transformant is prepared, and recombinant trehalose phosphorylase is produced using the transformant. Trehalose phosphorylase can be produced in an industrial scale. Trehalose can be manufactured advantageously in an industry scale from D-glucose and &agr;-D-glucose 1-phosphoric acid using this enzyme.
    Type: Application
    Filed: December 15, 1999
    Publication date: June 6, 2002
    Inventors: SUEHARU HORINOUCHI, KOHKI SAITOH, EISAKU TAKAHASHI
  • Publication number: 20010013989
    Abstract: For a balance adjustment due to a reduction in size and weight of an actuator, an arm portion, an axis attaching portion, and a coil supporting portion are arranged so that the centers of gravity on the coil side are located on a straight line connecting a rotational center and the center of gravity on the head side. Further, the improvement of an assembling efficiency of a VCM, an increase in torque, a one-touch fixing of an FPC connecting band, a noise prevention of a read pattern, and an insulation between the base and cover due to a bias of an MR read head are accomplished. A sector mark is detected by comparing a peak detection pulse and its reference polarity signal. A redundancy is provided to a reference detection polarity signal so that a read signal can be detected even if any one of the read signals of the sector marks is dropped out.
    Type: Application
    Filed: April 24, 1998
    Publication date: August 16, 2001
    Applicant: FUJITSU LIMITED
    Inventors: MASARU SAIKI, TSUTOMU SASAKI, HIROKAZU ISHIZAKI, EIJI OKAMURA, TATSUYA GOFUKU, NORIHIKO SUZUKI, KOICHI TOHKAIRIN, HIROFUMI SUZUKI, KENJI ENDO, CHIHIRO ONO, KAZUHIDE OHBA, ATSUSHI SATOH, EISAKU TAKAHASHI, TAKASHI TOKAIRIN, ISAO SUDA, TAKAHIRO ONO