Patents by Inventor Fumio Hanzawa

Fumio Hanzawa 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: 10409663
    Abstract: A first control apparatus transmits, to a second control apparatus, a first error score based on an error detection situation at the time of accessing a first memory device through the second control apparatus, and transmits, to a third control apparatus, a second error score based on an error detection situation at the time of accessing a second memory device through the third control apparatus. The second control apparatus determines whether the first memory device malfunctions, based on a sum of a third error score based on the error detection situation at the time of accessing the first memory device and the received first error score. The third control apparatus determines whether the second memory device malfunctions, based on a sum of a fourth error score based on the error detection situation at the time of accessing the second memory device and the received second error score.
    Type: Grant
    Filed: March 25, 2016
    Date of Patent: September 10, 2019
    Assignee: FUJITSU LIMITED
    Inventors: Akira Sampei, Fumio Hanzawa, Hiroaki Sato
  • Patent number: 10070599
    Abstract: A plant cultivation apparatus includes a cultivation unit including a cultivation bed that includes a recess having a recessed cross-sectional shape and being configured to receive cultivation liquid injected into the recess, and a cultivation plate on the cultivation bed. The cultivation plate is supported on the recess of the cultivation bed, and includes an air supply path defined inside the cultivation plate, an air intake port through which air is supplied to the air supply path, and an air discharge port connecting with the air supply path and defined on an upper surface side of the cultivation plate where a cultivation plant is disposed. The cultivation bed includes an air intake port through which air is introduced and guided to the air supply path of the cultivation plate, and an air discharge port connectable with the air intake port of the cultivation plate.
    Type: Grant
    Filed: March 11, 2015
    Date of Patent: September 11, 2018
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Fumio Hanzawa, Masahiko Kaide, Hiroshi Kageyama
  • Patent number: 10058041
    Abstract: A plant cultivation apparatus according to the present technology includes a cultivation space where a cultivation environment is controllable, and a plurality of cultivation shelves disposed in the cultivation space. An air conditioner for supplying airflow to the cultivation shelves is provided in an upper region of the cultivation space. An induced draft fan for inducing the airflow supplied from the air conditioner to the cultivation shelves is provided at least at an end of the cultivation space. The induced draft fan is configured to induce the airflow supplied from the air conditioner to the cultivation shelves.
    Type: Grant
    Filed: September 1, 2016
    Date of Patent: August 28, 2018
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Fumio Hanzawa, Hiroyuki Naka, Yousuke Okui, Hiroshi Kageyama, Kazunori Tanaka
  • Patent number: 9760423
    Abstract: A first control device includes a first storage unit holding a first error count and a first control unit that calculates the first error count, based on a status of an error detected when a storage device is accessed via a second control device, stores the calculated first error count in the first storage unit, and transmits the first error count to the second control device at predetermined timing. The second control device includes a second storage unit holding a second error count and a second control unit that calculates the second error count, based on a status of an error detected when the storage device is accessed, stores the calculated second error count in the second storage unit, and determines whether the storage device has malfunctioned, based on an aggregate value of the first error count received from the first control device and the second error count.
    Type: Grant
    Filed: March 24, 2016
    Date of Patent: September 12, 2017
    Assignee: FUJITSU LIMITED
    Inventors: Akira Sampei, Fumio Hanzawa, Hiroaki Sato
  • Publication number: 20160366838
    Abstract: A plant cultivation apparatus according to the present technology includes a cultivation space where a cultivation environment is controllable, and a plurality of cultivation shelves disposed in the cultivation space. An air conditioner for supplying airflow to the cultivation shelves is provided in an upper region of the cultivation space. An induced draft fan for inducing the airflow supplied from the air conditioner to the cultivation shelves is provided at least at an end of the cultivation space. The induced draft fan is configured to induce the airflow supplied from the air conditioner to the cultivation shelves.
    Type: Application
    Filed: September 1, 2016
    Publication date: December 22, 2016
    Inventors: Fumio HANZAWA, Hiroyuki NAKA, Yousuke OKUI, Hiroshi KAGEYAMA, Kazunori TANAKA
  • Publication number: 20160321123
    Abstract: A first control apparatus transmits, to a second control apparatus, a first error score based on an error detection situation at the time of accessing a first memory device through the second control apparatus, and transmits, to a third control apparatus, a second error score based on an error detection situation at the time of accessing a second memory device through the third control apparatus. The second control apparatus determines whether the first memory device malfunctions, based on a sum of a third error score based on the error detection situation at the time of accessing the first memory device and the received first error score. The third control apparatus determines whether the second memory device malfunctions, based on a sum of a fourth error score based on the error detection situation at the time of accessing the second memory device and the received second error score.
    Type: Application
    Filed: March 25, 2016
    Publication date: November 3, 2016
    Applicant: FUJITSU LIMITED
    Inventors: Akira SAMPEI, Fumio HANZAWA, Hiroaki SATO
  • Publication number: 20160321122
    Abstract: A first control device includes a first storage unit holding a first error count and a first control unit that calculates the first error count, based on a status of an error detected when a storage device is accessed via a second control device, stores the calculated first error count in the first storage unit, and transmits the first error count to the second control device at predetermined timing. The second control device includes a second storage unit holding a second error count and a second control unit that calculates the second error count, based on a status of an error detected when the storage device is accessed, stores the calculated second error count in the second storage unit, and determines whether the storage device has malfunctioned, based on an aggregate value of the first error count received from the first control device and the second error count.
    Type: Application
    Filed: March 24, 2016
    Publication date: November 3, 2016
    Applicant: FUJITSU LIMITED
    Inventors: Akira SAMPEI, Fumio HANZAWA, Hiroaki SATO
  • Patent number: 9459943
    Abstract: An information processing device includes a plurality of components and a processor. The processor is configured to measure, upon detection of abnormalities in first components among the plurality of components, a number of abnormalities that occur in each of the first components. The processor is configured to measure an access processing value in each of the first components. The access processing value represents an amount of a predetermined feature relating to each of the first components. The processor is configured to calculate a ratio of the number of abnormalities to the access processing value in each of the first components. The processor is configured to identify a component as a fault location based on the calculated ratios.
    Type: Grant
    Filed: April 18, 2014
    Date of Patent: October 4, 2016
    Assignee: FUJITSU LIMITED
    Inventors: Akira Sampei, Fumio Hanzawa, Hiroaki Sato, Tsunemichi Harada
  • Publication number: 20160157447
    Abstract: A plant cultivation apparatus includes a cultivation unit including a cultivation bed that includes a recess having a recessed cross-sectional shape and receiving cultivation liquid injected into the recess, and a cultivation plate provided on the cultivation bed. The cultivation plate is supported by the recess of the cultivation bed, and includes an air supply path formed inside the cultivation plate, an air intake port through which air is supplied to the air supply path, and an air discharge port connecting with the air supply path and formed on an upper surface side of the cultivation plate where a cultivation plant is disposed. The cultivation bed includes an air intake port through which air is introduced and guided to the air supply path of the cultivation plate, and an air discharge port connectable with the air intake port of the cultivation plate.
    Type: Application
    Filed: March 11, 2015
    Publication date: June 9, 2016
    Applicant: Panasonic Intellectual Property Management Co., Ltd.
    Inventors: Fumio HANZAWA, Masahiko KAIDE, Hiroshi KAGEYAMA
  • Patent number: 9164824
    Abstract: An information processing apparatus includes a plurality of controller modules capable of performing communications with each other, and a memory included in each controller module to be stored with status information reflecting a status of an error occurring during the communications with other controller modules with respect to the controller module of a communication partner apparatus and/or the controller module of the self-apparatus, wherein, when determining whether or not a fault occurs in a certain controller module in the plurality of controller modules, the controller module different from a determination target controller module determines, based on status information of the determination target controller module that is stored on the memories of two or more controller modules different from the determination target controller module, whether the fault occurs in the determination target controller module.
    Type: Grant
    Filed: October 24, 2012
    Date of Patent: October 20, 2015
    Assignee: FUJITSU LIMITED
    Inventors: Tsunemichi Harada, Hiroaki Sato, Akira Sampei, Fumio Hanzawa
  • Publication number: 20140344630
    Abstract: An information processing device includes a plurality of components and a processor. The processor is configured to measure, upon detection of abnormalities in first components among the plurality of components, a number of abnormalities that occur in each of the first components. The processor is configured to measure an access processing value in each of the first components. The access processing value represents an amount of a predetermined feature relating to each of the first components. The processor is configured to calculate a ratio of the number of abnormalities to the access processing value in each of the first components. The processor is configured to identify a component as a fault location based on the calculated ratios.
    Type: Application
    Filed: April 18, 2014
    Publication date: November 20, 2014
    Applicant: FUJITSU LIMITED
    Inventors: Akira SAMPEI, Fumio Hanzawa, Hiroaki Sato, Tsunemichi Harada
  • Patent number: 8874972
    Abstract: In a storage system, when a recovered error occurred upon access to a storage apparatus, a data redundancy determination unit determines whether data to be accessed has redundancy. When the data is determined to have no redundancy, an anomaly-occurring portion determination unit determines that the storage apparatus is not an anomaly-occurring portion and at the same time, an error history determination unit determines whether a recovered error occurred at the time of the past access to the storage apparatus other than that of the access destination. The anomaly-occurring portion determination unit determines whether a common transmission path is the anomaly-occurring portion based on the determination result of the error history determination unit.
    Type: Grant
    Filed: February 13, 2012
    Date of Patent: October 28, 2014
    Assignee: Fujitsu Limited
    Inventors: Akira Sampei, Fumio Hanzawa, Hiroaki Sato
  • Patent number: 8850255
    Abstract: A storage system includes a storage and control units. In each of the control units: a relay unit relays access to the storage; an access controller accesses the storage through one of the relay unit in the control unit and the relay unit in another of the control units; and an operational-state controller determines whether or not the relay unit in the above-mentioned another control unit is usable when the operational-state controller detects occurrence of an abnormality in the above-mentioned another control unit, and makes the above-mentioned another control unit transition to a partially-operational state when the relay unit in the above-mentioned another control unit is usable. In the partially-operational state, at least the access controller in the above-mentioned another control unit is not in operation and the access controller in the control unit can access the storage through the relay unit in the above-mentioned another control unit.
    Type: Grant
    Filed: July 22, 2011
    Date of Patent: September 30, 2014
    Assignee: Fujitsu Limited
    Inventors: Kazuo Nakashima, Ryohei Nishimiya, Fumio Hanzawa, Masanori Ito, Kazuhiro Hara
  • Patent number: 8713328
    Abstract: A code conversion apparatus, a disk drive, a code buffer, and an encryption buffer are included in a storage. The code buffer stores therein first encrypted data present in the disk drive, and the encryption buffer stores therein first unencrypted data present in the disk drive. An encrypting unit encrypts the first unencrypted data present in the encryption buffer to predetermined encrypted data, and a decrypting unit decrypts the first encrypted data present in the code buffer to second unencrypted data. Moreover, a re-encrypting unit decrypts the first encrypted data present in the code buffer to third unencrypted data and encrypts the third unencrypted data to second encrypted data different from the first encrypted data.
    Type: Grant
    Filed: February 4, 2008
    Date of Patent: April 29, 2014
    Assignee: Fujitsu Limited
    Inventors: Kazuhiko Ikeuchi, Mikio Ito, Hidejirou Daikokuya, Kazuo Nakashima, Chikashi Maeda, Fumio Hanzawa
  • Patent number: 8634156
    Abstract: In a storage system, when power supply to HDDs is instantaneously interrupted, a spin up controller of a magnetic disk apparatus spins up the HDDs. On the other hand, based on a response for an access to the HDDs in the magnetic disk apparatus, when detecting that the HDDs as an access destination are spun down, a spin up controller of a control apparatus spins up the HDDs. When a certain number of the HDDs or more are spun down, a separate controller does not permit the magnetic disk apparatus to be used for a given length of time. While the magnetic disk apparatus is not permitted to be used, the HDDs are spun up by using the spin up controller of the magnetic disk apparatus.
    Type: Grant
    Filed: February 7, 2012
    Date of Patent: January 21, 2014
    Assignee: Fujitsu Limited
    Inventors: Akira Sampei, Tsunemichi Harada, Hiroaki Sato, Fumio Hanzawa
  • Patent number: 8307244
    Abstract: A storage system includes first and second expanders for connecting storage units, each of the first and second expanders being connected cascade each other, a first controller connected one of the first and one of the second expanders and a host, a second controller connected the one of the second expanders, the one of the first expanders and the host, the second controller detecting a failure of at least one of the first controller, the first expanders and the second expanders, the second controller selectively controlling a first boot sequence which boots the first controller after the first expanders have been booted and a second boot sequence which boots the first controller before the first expanders have been booted, determining one of the first boot sequence and the second boot sequence on the basis of a place where a failure has occurred in a recovery process.
    Type: Grant
    Filed: May 25, 2010
    Date of Patent: November 6, 2012
    Assignee: Fujitsu Limited
    Inventors: Kouichi Tsukada, Akira Sampei, Fumio Hanzawa, Hiroaki Sato, Kazuo Nakashima
  • Publication number: 20120250179
    Abstract: In a storage system, when power supply to HDDs is instantaneously interrupted, a spin up controller of a magnetic disk apparatus spins up the HDDs. On the other hand, based on a response for an access to the HDDs in the magnetic disk apparatus, when detecting that the HDDs as an access destination are spun down, a spin up controller of a control apparatus spins up the HDDs. When a certain number of the HDDs or more are spun down, a separate controller does not permit the magnetic disk apparatus to be used for a given length of time. While the magnetic disk apparatus is not permitted to be used, the HDDs are spun up by using the spin up controller of the magnetic disk apparatus.
    Type: Application
    Filed: February 7, 2012
    Publication date: October 4, 2012
    Applicant: FUJITSU LIMITED
    Inventors: Akira SAMPEI, Tsunemichi Harada, Hiroaki Sato, Fumio Hanzawa
  • Publication number: 20120254673
    Abstract: In a storage system, when a recovered error occurred upon access to a storage apparatus, a data redundancy determination unit determines whether data to be accessed has redundancy. When the data is determined to have no redundancy, an anomaly-occurring portion determination unit determines that the storage apparatus is not an anomaly-occurring portion and at the same time, an error history determination unit determines whether a recovered error occurred at the time of the past access to the storage apparatus other than that of the access destination. The anomaly-occurring portion determination unit determines whether a common transmission path is the anomaly-occurring portion based on the determination result of the error history determination unit.
    Type: Application
    Filed: February 13, 2012
    Publication date: October 4, 2012
    Applicant: FUJITSU LIMITED
    Inventors: Akira SAMPEI, Fumio HANZAWA, Hiroaki SATO
  • Publication number: 20120036387
    Abstract: A storage system includes a storage and control units. In each of the control units: a relay unit relays access to the storage; an access controller accesses the storage through one of the relay unit in the control unit and the relay unit in another of the control units; and an operational-state controller determines whether or not the relay unit in the above-mentioned another control unit is usable when the operational-state controller detects occurrence of an abnormality in the above-mentioned another control unit, and makes the above-mentioned another control unit transition to a partially-operational state when the relay unit in the above-mentioned another control unit is usable. In the partially-operational state, at least the access controller in the above-mentioned another control unit is not in operation and the access controller in the control unit can access the storage through the relay unit in the above-mentioned another control unit.
    Type: Application
    Filed: July 22, 2011
    Publication date: February 9, 2012
    Applicant: FUJITSU LIMITED
    Inventors: Kazuo NAKASHIMA, Ryohei Nishimiya, Fumio Hanzawa, Masanori Ito, Kazuhiro Hara
  • Publication number: 20120005426
    Abstract: A storage device includes a plurality of data storage units that store data; an attribution storage unit that stores an attribution group including each data storage unit on the basis of attributions of the plurality of data storage units; a defect storage unit that stores defects that occurred in a data storage unit; and a preventive-maintenance-subject extracting unit that extracts, as a preventive-maintenance subject, another data storage unit belonging to the same attribution group as the data storage unit in which the defects stored by the defect storage unit has occurred, on the basis of an occurrence history of the defects that occurred in the data storage unit and the attribution group stored by the attribution group storage unit. The storage device also includes a preventive-maintenance performing unit that performs preventive-maintenance on data stored in the other data storage unit extracted by the preventive-maintenance-subject extracting unit.
    Type: Application
    Filed: April 20, 2011
    Publication date: January 5, 2012
    Applicant: Fujitsu Limited
    Inventors: Akira SAMPEI, Fumio Hanzawa, Hiroaki Sato