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).
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Patent number: 8671264Abstract: 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: GrantFiled: August 30, 2010Date of Patent: March 11, 2014Assignee: Fujitsu LimitedInventors: Eisaku Takahashi, Teiji Yoshida
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Patent number: 8089712Abstract: 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: GrantFiled: January 29, 2009Date of Patent: January 3, 2012Assignee: Fujitsu LimitedInventors: Mikio Ito, Eisaku Takahashi, Hidejirou Daikokuya, Kazuhiko Ikeuchi, Hideo Takahashi, Yoshihito Konta, Norihide Kubota
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Publication number: 20110055475Abstract: 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: ApplicationFiled: August 30, 2010Publication date: March 3, 2011Applicant: FUJITSU LIMITEDInventors: Eisaku TAKAHASHI, Teiji Yoshida
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Patent number: 7849891Abstract: 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: GrantFiled: August 5, 2004Date of Patent: December 14, 2010Assignee: Kureha CorporationInventors: Yoshitugi Hashiba, Hitoshi Takahashi, Eisaku Takahashi
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Patent number: 7805659Abstract: 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: GrantFiled: September 26, 2006Date of Patent: September 28, 2010Assignee: Fujitsu LimitedInventor: Eisaku Takahashi
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Patent number: 7779611Abstract: 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: GrantFiled: August 5, 2004Date of Patent: August 24, 2010Assignee: Kureha CorporationInventors: Yoshitugi Hashiba, Hitoshi Takahashi, Eisaku Takahashi
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Publication number: 20090290247Abstract: 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: ApplicationFiled: January 29, 2009Publication date: November 26, 2009Applicant: FUJITSU LIMITEDInventors: Mikio Ito, Eisaku Takahashi, Hidejirou Daikokuya, Kazuhiko Ikeuchi, Hideo Takahashi, Yoshihito Konta, Norihide Kubota
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Patent number: 7590884Abstract: 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: GrantFiled: September 29, 2005Date of Patent: September 15, 2009Assignee: Fujitsu LimitedInventors: 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
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Patent number: 7415636Abstract: 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: GrantFiled: December 22, 2004Date of Patent: August 19, 2008Assignee: Fujitsu LimitedInventor: Eisaku Takahashi
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Publication number: 20080195886Abstract: 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: ApplicationFiled: January 29, 2008Publication date: August 14, 2008Applicant: FUJITSU LIMITEDInventor: Eisaku Takahashi
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Publication number: 20070289257Abstract: 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: ApplicationFiled: August 5, 2004Publication date: December 20, 2007Inventors: Yoshitugi Hashiba, Hitoshi Takahashi, Eisaku Takahashi
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Publication number: 20070250757Abstract: 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: ApplicationFiled: September 26, 2006Publication date: October 25, 2007Applicant: Fujitsu LimitedInventor: Eisaku Takahashi
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Publication number: 20070199282Abstract: 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: ApplicationFiled: August 5, 2004Publication date: August 30, 2007Inventors: Yoshitugi Hashiba, Hitoshi Takahashi, Eisaku Takahashi
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Publication number: 20070095425Abstract: 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: ApplicationFiled: August 5, 2004Publication date: May 3, 2007Inventors: Yoshitugi Hashiba, Hitoshi Takahashi, Eisaku Takahashi
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Publication number: 20070002482Abstract: 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: ApplicationFiled: September 29, 2005Publication date: January 4, 2007Applicant: FUJITSU LIMITEDInventors: 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
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Publication number: 20060075291Abstract: 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: ApplicationFiled: December 22, 2004Publication date: April 6, 2006Applicant: Fujitsu LimitedInventor: Eisaku Takahashi
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Publication number: 20060048444Abstract: 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: ApplicationFiled: October 24, 2003Publication date: March 9, 2006Applicant: KUREHA CHEMICAL INDUSTRY CO., LTD.Inventors: Hiroyuki Kitagou, Nobuo Ootomo, Yasumitu Nemoto, Eisaku Takahashi, Junji Hiwatashi, Kenichi Matsunaga
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Patent number: 6556367Abstract: 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: GrantFiled: December 28, 2000Date of Patent: April 29, 2003Assignee: Fujitsu LimitedInventor: Eisaku Takahashi
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Publication number: 20020068349Abstract: 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: ApplicationFiled: December 15, 1999Publication date: June 6, 2002Inventors: SUEHARU HORINOUCHI, KOHKI SAITOH, EISAKU TAKAHASHI
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Publication number: 20010013989Abstract: 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: ApplicationFiled: April 24, 1998Publication date: August 16, 2001Applicant: FUJITSU LIMITEDInventors: 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