Patents by Inventor Hidetaka Sasaki
Hidetaka Sasaki 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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Publication number: 20240118170Abstract: A vibration monitoring device includes: a rotation sensor for outputting a rotation signal synchronized with rotation of a rotational shaft; an output device for outputting a filter command value corresponding to a rotation speed of the rotational shaft calculated from the rotation signal; and at least one filter for extracting, in response to input of the rotation signal and the filter command value, a signal in a passband set according to the filter command value from the rotation signal as a vibration signal from which vibration information of the rotational shaft can be obtained.Type: ApplicationFiled: February 15, 2022Publication date: April 11, 2024Applicant: Mitsubishi Heavy Industries Marine Machinery & Equipment Co., Ltd.Inventors: Tadashi Yoshida, Hidetaka Nishimura, Akifumi Tanaka, Shinji Ogawa, Isao Tomita, Tohru Suita, Ryoji Sasaki
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Patent number: 9353976Abstract: An object of the present invention is to keep an appropriate amount of a refrigerant to be circulated through a refrigerant circuit and prevent an overload operation of compression means due to high pressure abnormality in a refrigerating apparatus which obtains a supercritical pressure on a high pressure side.Type: GrantFiled: December 22, 2010Date of Patent: May 31, 2016Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.Inventors: Kazuhiko Mihara, Hidetaka Sasaki, Setsu Hasegawa, Ken Kawakubo, Masahisa Otake
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Patent number: 8997508Abstract: An object of the present invention is to keep an appropriate high pressure side pressure in a refrigerant circuit while reducing noises of an operation of a blower in a refrigerating apparatus which obtains a critical pressure on a high pressure side. The refrigerating apparatus in which the refrigerant circuit is constituted of a compressor, a gas cooler, a reducing element and an evaporator to obtain a supercritical pressure on the high pressure side includes a blower which air-cools the gas cooler and a control device which controls this blower. This control device controls a revolution speed of the blower based on an outdoor temperature and an evaporation temperature of a refrigerant in the evaporator.Type: GrantFiled: December 22, 2010Date of Patent: April 7, 2015Assignee: Panasonic Intellectual Property Management Co., Ltd.Inventors: Kazuhiko Mihara, Hidetaka Sasaki, Setsu Hasegawa, Ken Kawakubo, Masahisa Otake, Takashi Sato, Akira Matsuzaki
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Patent number: 8991204Abstract: A refrigerating apparatus including a first refrigeration cycle circuit having a first compressor, a first radiator, a supercooler, a first pressure-reducing device and an evaporator that are connected through a refrigerant pipe, a second refrigeration cycle circuit having a second compressor, a second radiator, a second pressure-reducing device and the supercooler that are connected through a refrigerant pipe, a refrigeration unit in which the first compressor and the first radiator are mounted, a showcase in which the first pressure-reducing device and the evaporator are mounted, a supercooling hot water supply device in which the second compressor, the second radiator, the second pressure-reducing device and the supercooler are mounted, and a hot-water stock device having a hot water supply tank that is connected to the second radiator of the supercooling hot water supply device through a second radiator.Type: GrantFiled: May 27, 2010Date of Patent: March 31, 2015Assignee: Panasonic Intellectual Property Management Co., Ltd.Inventors: Masahisa Otake, Hidetaka Sasaki, Setsu Hasegawa, Ken Kawakubo, Kazuhiko Mihara
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Patent number: 8899067Abstract: A refrigerating apparatus including a control unit which starts the operation of the refrigerant compressor in response to an operation signal and which regulates the pressure reducing device so that the temperature of a refrigerant in the water heat exchanger becomes +80 ° C. or more and the temperature of the refrigerant in the evaporator becomes 0 ° C. or less. The control unit detects a state where a cold storage amount in the cold storage unit reaches a predetermined amount or more and another state where the control unit judges whether the hot water storage tank is full of the hot water, after the elapse of a predetermined time from the start of the operation of the refrigerant compressor, and it stops the operation of the refrigerant compressor when one of the states is satisfied.Type: GrantFiled: January 5, 2010Date of Patent: December 2, 2014Assignee: SANYO Electric Co., Ltd.Inventors: Masahisa Otake, Setsu Hasegawa, Ken Kawakubo, Hidetaka Sasaki
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Patent number: 8555254Abstract: Item values associated with an execution state of a program executed on a computer are collected in detail while suppressing the computer load. When reducing the interval for collecting values of one item to be monitored, the interval for collecting values of items other than that item is increased. If the computer load is increased, an interval of at least one item is increased. Moreover, there is provided an upper limit for the number of items whose intervals can be reduced simultaneously. Moreover, when varying the interval of the item according to the values of the respective items, the interval variation range is varied according to the item state and the computer load.Type: GrantFiled: September 15, 2011Date of Patent: October 8, 2013Assignee: Hitachi Ltd.Inventors: Hidetaka Sasaki, Motoaki Hirabayashi
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Patent number: 8392676Abstract: A management method and management apparatus that can prevent deterioration of response performance of an entire system is suggested.Type: GrantFiled: July 14, 2010Date of Patent: March 5, 2013Assignee: Hitachi, Ltd.Inventors: Tomonori Yata, Hideo Ohata, Hidetaka Sasaki
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Publication number: 20120259814Abstract: According to the present invention, policies are prepared for a plurality of resources residing in a computer system comprising a storage system for copying data from a copy source volume to a copy target volume, and an evaluation is carried out for an evaluation-target resource of the plurality of resources for determining whether or not to execute a predefined action based on the policy of this evaluation-target resource. A policy corresponding to a resource related to copying of the plurality of resources is determined based on a time period related to the copying.Type: ApplicationFiled: June 21, 2012Publication date: October 11, 2012Applicant: HITACHI, LTD.Inventors: Hidetaka Sasaki, Hideo Ohata
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Patent number: 8255518Abstract: Provided is a computer system including a host computer, a storage system connected to the host computer via a network, and a management computer connected to the host computer and the storage system. The management computer obtains performance information indicating performance of resources contained in at least one of the host computer, the storage system, and the network, and obtains pieces of performance information of the resources in a sequence set based on already obtained performance information. This permits solving a problem of the computer system that, when the amount of performance information to be obtained is large. A long time is necessary for detecting a performance problem based on the performance information and investigating its causes.Type: GrantFiled: January 17, 2007Date of Patent: August 28, 2012Assignee: Hitachi, Ltd.Inventors: Satomi Yahiro, Hidetaka Sasaki, Hideo Ohata
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Patent number: 8245272Abstract: According to the present invention, policies are prepared for a plurality of resources residing in a computer system comprising a storage system for copying data from a copy source volume to a copy target volume, and an evaluation is carried out for an evaluation-target resource of the plurality of resources for determining whether or not to execute a predefined action based on the policy of this evaluation-target resource. A policy corresponding to a resource related to copying of the plurality of resources is determined based on a time period related to the copying.Type: GrantFiled: January 31, 2008Date of Patent: August 14, 2012Assignee: Hitachi, Ltd.Inventors: Hidetaka Sasaki, Hideo Ohata
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Publication number: 20120005541Abstract: Item values associated with an execution state of a program executed on a computer are collected in detail while suppressing the computer load. When reducing the interval for collecting values of one item to be monitored, the interval for collecting values of items other than that item is increased. If the computer load is increased, an interval of at least one item is increased. Moreover, there is provided an upper limit for the number of items whose intervals can be reduced simultaneously. Moreover, when varying the interval of the item according to the values of the respective items, the interval variation range is varied according to the item state and the computer load.Type: ApplicationFiled: September 15, 2011Publication date: January 5, 2012Inventors: Hidetaka SASAKI, Motoaki Hirabayashi
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Patent number: 8042101Abstract: Item values associated with an execution state of a program executed on a computer are collected in detail while suppressing the computer load. When reducing the interval for collecting values of one item to be monitored, the interval for collecting values of items other than that item is increased. If the computer load is increased, an interval of at least one item is increased. Moreover, there is provided an upper limit for the number of items whose intervals can be reduced simultaneously. Moreover, when varying the interval of the item according to the values of the respective items, the interval variation range is varied according to the item state and the computer load.Type: GrantFiled: September 24, 2007Date of Patent: October 18, 2011Assignee: Hitachi, Ltd.Inventors: Hidetaka Sasaki, Motoaki Hirabayashi
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Publication number: 20110246740Abstract: A management method and management apparatus that can prevent deterioration of response performance of an entire system is suggested.Type: ApplicationFiled: July 14, 2010Publication date: October 6, 2011Applicant: HITACHI, LTD.Inventors: Tomonori YATA, Hideo OHATA, Hidetaka SASAKI
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Publication number: 20110231686Abstract: Power savings for a storage apparatus while preventing a drop in response performance is achieved. When the storage area supplied by the memory apparatus groups is not accessed by the host apparatus for a predetermined period, stop operation is performed for each of the memory apparatuses configuring the memory apparatus groups. The management apparatus groups, among the resources, resources with overlapping time zones for which the number of accesses by the application is zero, in the same group, and maps each of the groups to the memory apparatus groups respectively. At this time, if the number of accesses in each of the time zones of the groups of resources mapped to the memory apparatus groups exceeds the reference value of the memory apparatus groups, the group is divided into a plurality of groups and each of the plurality of groups is mapped to the memory apparatus groups.Type: ApplicationFiled: May 27, 2010Publication date: September 22, 2011Applicant: HITACHI, LTD.Inventors: Hiroko FUJII, Hideo OHATA, Masaki MURAOKA, Hidetaka SASAKI
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Publication number: 20110154839Abstract: An object of the present invention is to keep an appropriate high pressure side pressure in a refrigerant circuit while reducing noises of an operation of a blower in a refrigerating apparatus which obtains a critical pressure on a high pressure side. The refrigerating apparatus in which the refrigerant circuit is constituted of a compressor, a gas cooler, reducing means and an evaporator to obtain a supercritical pressure on the high pressure side comprises a blower which air-cools the gas cooler and a control device which controls this blower. This control device controls a revolution speed of the blower based on an outdoor temperature and an evaporation temperature of a refrigerant in the evaporator.Type: ApplicationFiled: December 22, 2010Publication date: June 30, 2011Applicant: SANYO ELECTRIC CO., LTD.Inventors: Kazuhiko Mihara, Hidetaka Sasaki, Setsu Hasegawa, Ken Kawakubo, Masahisa Otake, Takashi Sato, Akira Matsuzaki
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Publication number: 20110154840Abstract: An object of the present invention is to keep an appropriate amount of a refrigerant to be circulated through a refrigerant circuit and prevent an overload operation of compression means due to high pressure abnormality in a refrigerating apparatus which obtains a supercritical pressure on a high pressure side.Type: ApplicationFiled: December 22, 2010Publication date: June 30, 2011Applicant: SANYO ELECTRIC CO., LTD.Inventors: Kazuhiko Mihara, Hidetaka Sasaki, Setsu Hasegawa, Ken Kawakubo, Masahisa Otake
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Publication number: 20100300135Abstract: A refrigerating apparatus including a first refrigeration cycle circuit having a first compressor, a first radiator, a supercooler, a first pressure-reducing device and an evaporator that are connected through a refrigerant pipe, a second refrigeration cycle circuit having a second compressor, a second radiator, a second pressure-reducing device and the supercooler that are connected through a refrigerant pipe, a refrigeration unit in which the first compressor and the first radiator are mounted, a showcase in which the first pressure-reducing device and the evaporator are mounted, a supercooling hot water supply device in which the second compressor, the second radiator, the second pressure-reducing device and the supercooler are mounted, and a hot-water stock device having a hot water supply tank that is connected to the second radiator of the supercooling hot water supply device through a second radiator.Type: ApplicationFiled: May 27, 2010Publication date: December 2, 2010Inventors: Masahisa OTAKE, Hidetaka Sasaki, Setsu Hasegawa, Ken Kawakubo, Kazuhiko Mihara
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Publication number: 20100186604Abstract: An object is to provide a refrigerating apparatus which eliminates a disadvantage that a refrigerant circuit is overloaded and which can safely be operated. The refrigerating apparatus includes a control unit which starts the operation of a refrigerant compressor of the refrigerant circuit in response to an operation signal and which regulates an expansion valve so that the temperature of a refrigerant in a water heat exchanger becomes +80° C. or more and so that the temperature of the refrigerant in an evaporator becomes 0° C. or less. The control unit detects a state of a case where a cold storage amount in an ice cold storage tank of an ice cold storage unit reaches a predetermined amount or more and a state of a case where the control unit judges that a hot water storage tank is full of hot water, after the elapse of a predetermined time from the start of the operation of the compressor, and stops the operation of the compressor when one of the states is satisfied.Type: ApplicationFiled: January 5, 2010Publication date: July 29, 2010Applicant: SANYO ELECTRIC CO., LTD.Inventors: Masahisa Otake, Setsu Hasegawa, Ken Kawakubo, Hidetaka Sasaki
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Publication number: 20080301763Abstract: According to the present invention, policies are prepared for a plurality of resources residing in a computer system comprising a storage system for copying data from a copy source volume to a copy target volume, and an evaluation is carried out for an evaluation-target resource of the plurality of resources for determining whether or not to execute a predefined action based on the policy of this evaluation-target resource. A policy corresponding to a resource related to copying of the plurality of resources is determined based on a time period related to the copying.Type: ApplicationFiled: January 31, 2008Publication date: December 4, 2008Applicant: HITACHI, LTD.Inventors: Hidetaka SASAKI, Hideo OHATA
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Publication number: 20080104248Abstract: Provided is a computer system including a host computer, a storage system connected to the host computer via a network, and a management computer connected to the host computer and the storage system, in which the management computer obtains performance information indicating performance of resources contained in at least one of the host computer, the storage system, and the network, and obtains pieces of performance information of the resources in a sequence set based on the already obtained performance information, to thereby solve, a problem of the computer system that when the amount of performance information to be obtained is large, long time is necessary for detecting a performance problem based on the performance information and investigating its causes.Type: ApplicationFiled: January 17, 2007Publication date: May 1, 2008Inventors: Satomi Yahiro, Hidetaka Sasaki, Hideo Ohata