Patents by Inventor Hiroaki Matsushima

Hiroaki Matsushima 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: 9573437
    Abstract: A vehicular air conditioning system for saving energy includes: a first indoor cooling heat exchanger for suctioning in and cooling the air within or outside a vehicle; an indoor air conditioning heat exchanger installed on the downstream cooling heat exchanger for regulating the temperature of the applicable air, a refrigeration cycle connected to the applicable indoor air conditioning heat exchanger, a heating element mounted in the vehicle, and a circuit for the machine coolant circulating between the applicable heating element and the applicable first indoor cooling heat exchanger, and in which the air flow path for air flowing into the indoor air conditioning heat exchanger is structured by merging a flow path passing through the first indoor cooling heat exchanger to a flow path not passing through the first indoor cooling heat exchanger, and is also configured to allow switching to either of the two flow paths.
    Type: Grant
    Filed: February 21, 2011
    Date of Patent: February 21, 2017
    Assignee: Hitachi, Ltd.
    Inventors: Tadashi Osaka, Hiroaki Matsushima, Sachio Sekiya, Riichi Uchida, Yuki Akiyama
  • Patent number: 9481226
    Abstract: A vehicular air-conditioning system includes: a vehicle interior air-conditioning apparatus which includes a device cooling circuit of a heat generating device mounted in a vehicle, and a refrigeration cycle circuit; and an intermediate heat exchanger for heat exchange between a device cooling medium of the device cooling circuit and an air-conditioning cooling medium of the refrigeration cycle circuit. A vehicle control apparatus is configured to determine a temperature of the cooling medium, and select a shorter control cycle timing of the vehicular air-conditioning system when the temperature of the cooling medium is greater than a predetermined temperature.
    Type: Grant
    Filed: February 21, 2011
    Date of Patent: November 1, 2016
    Assignee: HITACHI, LTD.
    Inventors: Tadashi Osaka, Hiroaki Matsushima, Sachio Sekiya, Riichi Uchida, Yuki Akiyama
  • Patent number: 9137243
    Abstract: An authentication system 1 that uses sound to transmit one-time password(s) may be equipped with portable terminal(s) 10, authentication terminal(s) 30, and authentication server(s) 50. Portable terminal 10 may be equipped with password generating unit(s) 21 which encrypt information including password generation user identifier(s) issued by authentication server(s) 50 and generate one-time password(s), encoding unit(s) 22 which encode one-time password(s) and generate baseband signal(s), carrier wave generating unit(s) 23 which generate carrier wave(s) in audible band(s), modulating unit(s) 25 which use baseband signal(s) to modulate carrier wave(s) and generate modulated signal(s), and speaker(s) 17 which transmit modulated signal(s) in the form of sound wave(s). One-time password(s) may be input as sound wave(s) from portable terminal(s) 10 to authentication terminal(s) 30.
    Type: Grant
    Filed: December 15, 2013
    Date of Patent: September 15, 2015
    Assignees: Field System, Inc., Information Services International-Dentsu, Ltd.
    Inventors: Hiroshi Suzuki, Ichiro Okuyama, Takashige Tsukuma, Yoshimaru Maruno, Hiroaki Matsushima
  • Patent number: 8973387
    Abstract: A vehicular air conditioning system capable of suppressing the power consumption of a refrigerating cycle is disclosed. The vehicular air conditioning system comprises a refrigerating cycle circuit comprising a compressor, an outside heat exchanger and an inside air conditioning heat exchanger annularly connected in order, and a device cooling circuit comprising a heating unit, an inside cooling heat exchanger, an intermediate heat exchanger and a pump being annularly connected, the intermediate heat exchanger being constructed such that one end of a piping of the cooling medium for air conditioning is connected to a liquid piping, the liquid piping providing connection between the outside heat exchanger and the inside air conditioning heat exchanger, and an opposite end of the piping of the cooling medium for air conditioning is connected to a suction port of the compressor.
    Type: Grant
    Filed: August 9, 2011
    Date of Patent: March 10, 2015
    Assignee: Hitachi, Ltd.
    Inventors: Tadashi Osaka, Hiroaki Matsushima, Sachio Sekiya, Yuto Imanishi
  • Publication number: 20140109211
    Abstract: An authentication system 1 that uses sound to transmit one-time password(s) may be equipped with portable terminal(s) 10, authentication terminal(s) 30, and authentication server(s) 50. Portable terminal 10 may be equipped with password generating unit(s) 21 which encrypt information including password generation user identifier(s) issued by authentication server(s) 50 and generate one-time password(s), encoding unit(s) 22 which encode one-time password(s) and generate baseband signal(s), carrier wave generating unit(s) 23 which generate carrier wave(s) in audible band(s), modulating unit(s) 25 which use baseband signal(s) to modulate carrier wave(s) and generate modulated signal(s), and speaker(s) 17 which transmit modulated signal(s) in the form of sound wave(s). One-time password(s) may be input as sound wave(s) from portable terminal(s) 10 to authentication terminal(s) 30.
    Type: Application
    Filed: December 15, 2013
    Publication date: April 17, 2014
    Applicants: Information Services International-Dentsu, Ltd., Field System, Inc.
    Inventors: Hiroshi SUZUKI, Ichiro OKUYAMA, Takashige TSUKUMA, Yoshimaru MARUNO, Hiroaki MATSUSHIMA
  • Publication number: 20130319029
    Abstract: A vehicle thermal system includes a heat pump system in which a compressor, a first refrigerant switching unit configured to switch a flowing direction of a refrigerant, an outdoor heat exchanger, a first flow rate control unit, a second flow rate control unit, and a heat pump intermediate heat exchanger are connected in order, and which has a bypass circuit including a third flow rate control unit between the first flow rate control unit and the second flow rate control unit, a heat pump indoor heat exchanger, and a second refrigerant switching unit configured to switch between a discharge side of the compressor and an suction side of the compressor. The heat pump system has the refrigerant flowing therein and a heat medium circuit in which a liquid pump, a cooling heat exchanger, a heat medium indoor heat exchanger and a heat medium intermediate heat exchanger are sequentially connected.
    Type: Application
    Filed: February 22, 2011
    Publication date: December 5, 2013
    Applicant: HITACHI, LTD.
    Inventors: Sachio Sekiya, Hiroaki Matsushima, Tadashi Osaka, Yuki Akiyama, Riichi Uchida
  • Publication number: 20130306302
    Abstract: A vehicular air-conditioning system includes: a vehicle interior air-conditioning apparatus which includes a device cooling circuit of a heat generating device mounted in a vehicle, and a refrigeration cycle circuit; and an intermediate heat exchanger for heat exchange between a device cooling medium of the device cooling circuit and an air-conditioning cooling medium of the refrigeration cycle circuit. When a temperature of the cooling medium of the device cooling circuit becomes equal to or higher than a predetermined temperature, a control cycle of the vehicular air-conditioning system is set to a short time, and the predetermined temperature is less than an upper limit temperature of the device cooling medium and is determined from a heat capacity of the device cooling circuit and an amount of heat generated by the heat generating device.
    Type: Application
    Filed: February 21, 2011
    Publication date: November 21, 2013
    Applicant: HITACHI LTD
    Inventors: Tadashi Osaka, Hiroaki Matsushima, Sachio Sekiya, Riichi Uchida, Yuki Akiyama
  • Publication number: 20130299129
    Abstract: A vehicular air conditioning system for saving energy includes: a first indoor cooling heat exchanger for suctioning in and cooling the air within or outside a vehicle; an indoor air conditioning heat exchanger installed on the downstream cooling heat exchanger for regulating the temperature of the applicable air, a refrigeration cycle connected to the applicable indoor air conditioning heat exchanger, a heating element mounted in the vehicle, and a circuit for the machine coolant circulating between the applicable heating element and the applicable first indoor cooling heat exchanger, and in which the air flow path for air flowing into the indoor air conditioning heat exchanger is structured by merging a flow path passing through the first indoor cooling heat exchanger to a flow path not passing through the first indoor cooling heat exchanger, and is also configured to allow switching to either of the two flow paths.
    Type: Application
    Filed: February 21, 2011
    Publication date: November 14, 2013
    Applicant: Hitachi, Ltd.
    Inventors: Tadashi Osaka, Hiroaki Matsushima, Sachio Sekiya, Riichi Uchida, Yuki Akiyama
  • Publication number: 20120037352
    Abstract: A vehicular air conditioning system capable of suppressing the power consumption of a refrigerating cycle is disclosed. The vehicular air conditioning system comprises a refrigerating cycle circuit comprising a compressor, an outside heat exchanger and an inside air conditioning heat exchanger annularly connected in order, and a device cooling circuit comprising a heating unit, an inside cooling heat exchanger, an intermediate heat exchanger and a pump being annularly connected, the intermediate heat exchanger being constructed such that one end of a piping of the cooling medium for air conditioning is connected to a liquid piping, the liquid piping providing connection between the outside heat exchanger and the inside air conditioning heat exchanger, and an opposite end of the piping of the cooling medium for air conditioning is connected to a suction port of the compressor.
    Type: Application
    Filed: August 9, 2011
    Publication date: February 16, 2012
    Applicant: Hitachi, Ltd.
    Inventors: Tadashi OSAKA, Hiroaki MATSUSHIMA, Sachio SEKIYA, Yuto IMANISHI
  • Patent number: 7954661
    Abstract: A transport container comprising a spherical container 1 and a heat accumulating material 2a, 2b disposed inside of the spherical container 1, wherein; the heat accumulating material 2a, 2b is provided with a space for holding a transported object therein, and the space is formed at the central part of the inside of the spherical container 1.
    Type: Grant
    Filed: April 11, 2007
    Date of Patent: June 7, 2011
    Assignee: Hitachi, Ltd.
    Inventors: Mari Uchida, Hiroshi Kusumoto, Hiroaki Matsushima
  • Publication number: 20110072841
    Abstract: A thermodynamic cycle system for a moving vehicle, including a refrigeration cycle system through which a refrigerant flows, a first heat-transferring system through which a heat-transferring medium flows, the heat-transferring medium being used for adjusting temperatures of heat-liberation components, a second heat-transferring system through which a heat-transferring medium flows, the heat-transferring medium being used for adjusting an indoor air state, an intermediate heat exchanger provided between the refrigeration cycle system and the first heat-transferring system, an intermediate heat exchanger provided between the refrigeration cycle system and the second heat-transferring system, an indoor heat exchanger provided in the first heat-transferring system, and an indoor heat exchanger provided in the second heat-transferring system.
    Type: Application
    Filed: August 18, 2010
    Publication date: March 31, 2011
    Applicant: Hitachi, Ltd.
    Inventors: Masatsugu Arai, Shingo Nasu, Hiroaki Matsushima, Masanao Kotani, Tomohiro Komatsu, Sachio Sekiya
  • Publication number: 20090067323
    Abstract: In switching by failure, no switching is performed when a packet of IP packet is lost or a packet has not arrived even when a predetermined time has elapsed, which are not recognized as a failure. There is provided a duplicate transmission path switching device for data packets having the same information configuration to a main transmission path and an auxiliary transmission path.
    Type: Application
    Filed: March 22, 2005
    Publication date: March 12, 2009
    Inventors: Hiroaki Matsushima, Eiichi Hayashi, Takaaki Morita
  • Patent number: 7412846
    Abstract: An isothermal transportation container comprises an insulating container and a lid that can seal this insulating container. The insulating container has a plurality of insulating materials arranged overlapped on the inner peripheral face of the insulating container. A thermal conductive member is arranged in a space of the insulating container formed by the insulating materials. The thermal conductive member can accommodate a plurality of laminated packaging containers, each of which accommodates a thermal storage medium and a transported article. The heat in the thermal storage medium in one packaging container can be transmitted to the other packaging container through the thermal conductive member.
    Type: Grant
    Filed: February 9, 2006
    Date of Patent: August 19, 2008
    Assignee: Hitachi, Ltd.
    Inventors: Sachio Sekiya, Tatsuo Fujii, Hirotsugu Kuroume, Toshiaki Inuma, Yusuke Kiritoshi, Hiroaki Matsushima
  • Publication number: 20070245763
    Abstract: A transport container comprising a spherical container 1 and a heat accumulating material 2a, 2b disposed inside of the spherical container 1, wherein; the heat accumulating material 2a, 2b is provided with a space for holding a transported object therein, and the space is formed at the central part of the inside of the spherical container 1.
    Type: Application
    Filed: April 11, 2007
    Publication date: October 25, 2007
    Inventors: Mari Uchida, Hiroshi Kusumoto, Hiroaki Matsushima
  • Publication number: 20070198110
    Abstract: In an appliance controller 100 for controlling a household electric appliance, a unit information holding part 131 holds unit information identifies a household electric appliance 10, and an operation restriction information holding part 133 can hold operation restriction information indicates operation restrictions to be imposed on the household electric appliance 10. A receiving part 120 receives a forcible control signal transmitted by wireless and demodulates unit information and operation restriction information. A decision part 132 causes the operation restriction information holding part 133 to hold the received operation restriction information when the unit information held in the operation restriction information holding part 133 matches the received unit information. An appliance control part 210 (control computer) controls the operation of the household electric appliance 10 according to the operation restriction information held in the operation restriction information holding part 133.
    Type: Application
    Filed: January 19, 2007
    Publication date: August 23, 2007
    Inventors: Hideaki Suzuki, Makato Kitano, Hisao Suka, Hiroaki Matsushima
  • Patent number: 7172062
    Abstract: A friction plate for a wet type multiplate clutch has a substantially ring-shaped core plate and a friction member attached to the core plate. The friction member has a surface which includes a passage formed on a surface of the friction member, the passage extending from an inner peripheral edge of the friction member to an outer peripheral edge of the friction member, and a groove having an opened end which opens to the inner peripheral edge of the friction member and a closed end which is closed at a middle of the surface of the friction member. A width of the groove decreases towards a direction to the outer peripheral edge from the inner peripheral edge of the friction member.
    Type: Grant
    Filed: August 31, 2004
    Date of Patent: February 6, 2007
    Assignee: NSK-Warner Kabushiki Kaisha
    Inventors: Shun Kitahara, Tomoyuki Miyazaki, Hiroaki Matsushima, Kazuyuki Fujita
  • Publication number: 20060191282
    Abstract: An isothermal transportation container comprises an insulating container and a lid that can seal this insulating container. The insulating container has a plurality of insulating materials arranged overlapped on the inner peripheral face of the insulating container. A thermal conductive member is arranged in a space of the insulating container formed by the insulating materials. The thermal conductive member can accommodate a plurality of laminated packaging containers, each of which accommodates a thermal storage medium and a transported article. The heat in the thermal storage medium in one packaging container can be transmitted to the other packaging container through the thermal conductive member.
    Type: Application
    Filed: February 9, 2006
    Publication date: August 31, 2006
    Inventors: Sachio Sekiya, Tatsuo Fujii, Hirotsugu Kuroume, Toshiaki Inuma, Yusuke Kiritoshi, Hiroaki Matsushima
  • Publication number: 20060160818
    Abstract: It is intended to provide an ocular hypotensive agent serving as a prophylactic or therapeutic agent for glaucoma, ocular hypertension, etc. which contains a compound of the formula (1): wherein A is methylene group, ethylene group or oxygen atom, n is an integer of 3 or 4, R is phenyl group optionally substituted, 2-pyridyl group optionally substituted or 2-pyrimidinyl group optionally substituted, and a solid line with a dotted line in the bicyclo ring means a single bond or a double bond.
    Type: Application
    Filed: February 25, 2004
    Publication date: July 20, 2006
    Inventors: Hiroaki Matsushima, Kumiko Fujinaga
  • Publication number: 20060143520
    Abstract: Network connectable household electric appliances in general home, such as refrigerators, washing machines, microwave ovens, air conditioners and lighting fixtures and a workstation of a service center are connected to permit communication therebetween. The workstation transmits a password and a running information request signal to a household electric appliance at intervals of a constant period, reads the running information stored in the household electric appliance and compares the running information with a reference value stored in appliance data so as to perform periodic inspection of the appliance. Not only in case a fault or abnormality occurs but also in case no fault or abnormality is detected, the result of inspection is informed to the user.
    Type: Application
    Filed: February 24, 2006
    Publication date: June 29, 2006
    Inventors: Hiroaki Matsushima, Sadao Hirose, Hidenori Yokoyama, Kazuhiro Fukuyo
  • Patent number: 6923016
    Abstract: In a refrigerant cycle apparatus, an energy-saving operation is performed by using a refrigerant which is used in a supercritical state. A refrigeration cycle apparatus is constituted by a main compressor, an expander, a sub compressor independently placed in an upstream side of the main compressor, a use side heat exchanger, a heat source side heat exchanger and the like. A refrigerant such as a carbon dioxide or the like which is used in a supercritical state is employed as the refrigerant. The sub compressor is driven by utilizing a recovered energy by the expanding device. Further, a refrigerant tank is provided, and properly controls an amount of the refrigerant circulating in the refrigerant cycle.
    Type: Grant
    Filed: April 7, 2004
    Date of Patent: August 2, 2005
    Inventors: Sunao Funakoshi, Hirokatsu Kohsokabe, Kazuhiro Endoh, Kenji Tojo, Hiroaki Matsushima