Patents by Inventor Ken Nakashima

Ken Nakashima 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).

  • Publication number: 20220150675
    Abstract: A communication terminal includes an acceleration sensor, a position acquisition antenna, a communication interface, and a processor. The processor transmits acceleration information acquired using the acceleration sensor and present position information acquired using the position acquisition antenna in a normal operation mode via the communication interface. The processor changes to an abnormal state when detecting a vibration equal to or higher than a first predetermined value using the acceleration sensor, and increases a frequency of acquisition or transmission of the acceleration information or the present position information in the abnormal state.
    Type: Application
    Filed: July 30, 2019
    Publication date: May 12, 2022
    Applicant: SHARP KABUSHIKI KAISHA
    Inventors: Takashi SAKAMOTO, KATSUO DOI, KEN NAKASHIMA, TAKEHIKO NAKAGAWA, Shota TSUBOKURA
  • Publication number: 20190130175
    Abstract: An embodiment of the present invention makes it possible to appropriately identify a visitor and respond in a manner considered appropriate by a resident. A server includes: a face recognition section configured to carry out face recognition of a visitor who has inputted a call operation, based on a captured image obtained from an intercom slave unit; and an output control section which carries out control so that output is carried out, in accordance with the result of the face recognition, by at least one of the shared call unit, an indoor monitor, and a mobile terminal.
    Type: Application
    Filed: October 29, 2018
    Publication date: May 2, 2019
    Inventors: KEN NAKASHIMA, KATSUO DOI
  • Patent number: 10088209
    Abstract: An air conditioner 1 of the embodiment of the present invention, when all compressors 21a-21c have been stopping for a given time or more, starts an air conditioning operation without performing pressure equalizing control in switch units 6a-6d with starting the operation of the air conditioner 1. Also, when the stopping time of all compressors 21a-21c is less than the given time, the air conditioner 1 performs the pressure equalizing control by controlling switch units 6a-6d with starting the operation of the air conditioner 1. In this case, when the stopping time reaches the given time during execution of the pressure equalizing processing control, the pressure equalizing processing control being executed is stopped and the air conditioning operation is started.
    Type: Grant
    Filed: January 3, 2013
    Date of Patent: October 2, 2018
    Assignee: Fujitsu General Limited
    Inventors: Keito Kawai, Hideya Tamura, Takahiro Matsunaga, Shinju Watanabe, Takashi Kimura, Kotaro Toya, Yasuhiro Oka, Ken Nakashima
  • Patent number: 9909784
    Abstract: An outdoor unit of an air conditioner coupled to an indoor unit by a liquid pipe and a gas pipe, includes: a compressor; an outdoor heat exchanger; a discharge pipe coupled to a refrigerant discharge side of the compressor; an intake pipe coupled to a refrigerant intake side of the compressor; an outdoor-unit high-pressure gas pipe coupled to the discharge pipe; an outdoor-unit low-pressure gas pipe coupled to the intake pipe; an outdoor-unit liquid pipe that couples a first refrigerant entry/exit opening of the outdoor heat exchanger and the liquid pipe together; a bypass pipe coupled to the outdoor-unit liquid pipe; a first flow-passage switcher coupled to a second refrigerant entry/exit opening of the outdoor heat exchanger, the discharge pipe, the intake pipe, and the bypass pipe; and a second flow-passage switcher coupled to the gas pipe, the outdoor-unit high-pressure gas pipe, and the outdoor-unit low-pressure gas pipe.
    Type: Grant
    Filed: April 8, 2015
    Date of Patent: March 6, 2018
    Assignee: FUJITSU GENERAL LIMITED
    Inventors: Kotaro Toya, Makoto Shimotani, Hideya Tamura, Takahiro Matsunaga, Shinju Watanabe, Koji Ogata, Masaki Arai, Yasuhiro Oka, Ken Nakashima, Toshihiro Takahashi, Masakazu Sato
  • Patent number: 9765997
    Abstract: A CPU 110 compares the extracted outside air temperature with a first low pressure saturation temperature. When the outside air temperature is lower than the first low pressure saturation temperature, the CPU 110 switches a first three-way valve 22 and a second three-way valve 23 so that a second outdoor heat exchanger 25 is used as a condenser and that a first outdoor heat exchanger 24 is not used. When the outside air temperature is higher than a second low pressure saturation temperature which is the first low pressure saturation temperature to which a predetermined temperature is added, the CPU 110 switches the first three-way valve 22 and the second three-way valve 23 so that the first outdoor heat exchanger 24 is used as a condenser and that the second outdoor heat exchanger 25 is not used.
    Type: Grant
    Filed: July 19, 2012
    Date of Patent: September 19, 2017
    Assignee: Fujitsu General Limited
    Inventors: Ken Nakashima, Hideya Tamura, Takahiro Matsunaga, Shinju Watanabe, Keito Kawai, Kotaro Toya, Yasuhiro Oka
  • Patent number: 9739521
    Abstract: When the temperatures of outdoor heat exchangers 23a and 23b detected by outdoor heat exchanger temperature sensors 57a and 57b become equal to or higher than 5 degrees C. and the sucking superheating degrees of compressors 21a and 21b become equal to or lower than 0 degrees C. while an air conditioning apparatus 1 is performing the reverse defrosting operation, the reverse defrosting operation is stopped and the heating dominant operation is resumed. At this time, the total operating times of the compressors 21a and 21b are reset. The sucking superheating degrees of the compressors 21a and 21b are obtained by subtracting the low pressure saturation temperatures calculated from the sucking pressures of the compressors 21a and 21b, from the temperatures of the refrigerants sucked into the compressors 21a and 21b which temperatures are detected by the sucking temperature sensors 54a and 54b.
    Type: Grant
    Filed: January 3, 2013
    Date of Patent: August 22, 2017
    Assignee: Fujitsu General Limited
    Inventors: Keito Kawai, Hideya Tamura, Takahiro Matsunaga, Shinju Watanabe, Takashi Kimura, Kotaro Toya, Yasuhiro Oka, Ken Nakashima
  • Patent number: 9518755
    Abstract: An outdoor unit for an air-conditioning apparatus includes an outdoor heat exchanger; a compressor; a refrigerant pipe configured to couple the outdoor heat exchanger and the compressor with an indoor unit including an indoor heat exchanger; and a control unit that determines whether the heating capacity of the indoor unit performing a heating operation is decreased by the refrigerant stagnated in the indoor heat exchanger.
    Type: Grant
    Filed: July 16, 2013
    Date of Patent: December 13, 2016
    Assignee: FUJITSU GENERAL LIMITED
    Inventors: Kotaro Toya, Hideya Tamura, Takahiro Matsunaga, Shinju Watanabe, Takashi Kimura, Yasuhiro Oka, Ken Nakashima
  • Publication number: 20160084535
    Abstract: An outdoor unit of an air conditioner coupled to an indoor unit by a liquid pipe and a gas pipe, includes: a compressor; an outdoor heat exchanger; a discharge pipe coupled to a refrigerant discharge side of the compressor; an intake pipe coupled to a refrigerant intake side of the compressor; an outdoor-unit high-pressure gas pipe coupled to the discharge pipe; an outdoor-unit low-pressure gas pipe coupled to the intake pipe; an outdoor-unit liquid pipe that couples a first refrigerant entry/exit opening of the outdoor heat exchanger and the liquid pipe together; a bypass pipe coupled to the outdoor-unit liquid pipe; a first flow-passage switcher coupled to a second refrigerant entry/exit opening of the outdoor heat exchanger, the discharge pipe, the intake pipe, and the bypass pipe; and a second flow-passage switcher coupled to the gas pipe, the outdoor-unit high-pressure gas pipe, and the outdoor-unit low-pressure gas pipe.
    Type: Application
    Filed: April 8, 2015
    Publication date: March 24, 2016
    Inventors: Kotaro TOYA, Makoto SHIMOTANI, Hideya TAMURA, Takahiro MATSUNAGA, Shinju WATANABE, Koji OGATA, Masaki ARAI, Yasuhiro OKA, Ken NAKASHIMA, Toshihiro TAKAHASHI, Masakazu SATO
  • Patent number: 9175890
    Abstract: An outdoor unit for an air-conditioning apparatus includes: a compressor; an outdoor fan; a plurality of outdoor heat exchangers coupled to a plurality of indoor units; a switching member configured to switch functions of the outdoor heat exchangers to either condensers or evaporators by switching of coupling states between the compressor and the outdoor heat exchangers; and a control unit configured to calculate a low pressure saturation temperature during a cooling operation or a cooling-main operation, and configured to cause all of the plurality of outdoor heat exchangers to serve as condensers by controlling the switching member when a state in which an open-air temperature is lower than the low pressure saturation temperature continues for a predetermined time.
    Type: Grant
    Filed: July 2, 2013
    Date of Patent: November 3, 2015
    Assignee: FUJITSU GENERAL LIMITED
    Inventors: Hideya Tamura, Takahiro Matsunaga, Shinju Watanabe, Keito Kawai, Takashi Kimura, Kotaro Toya, Yasuhiro Oka, Ken Nakashima
  • Patent number: 9046284
    Abstract: An air conditioning apparatus 1 includes first start control and second start control as its start control. In the first start control, first outdoor heat exchangers 24a, 24b are controlled to function as evaporators and second outdoor heat exchangers 25a, 25b are controlled to function as condensers. Thus, even when the compressors 21a, 21b are driven on at a given rotation number, the discharge pressures thereof can be prevented from increasing, thereby being able to prevent the internal pressures of the compressors 21a, 21b from increasing. Also, after end of the first start control, the first outdoor heat exchangers 24a, 24b and second outdoor heat exchangers 25a, 25b are all controlled to function as evaporators, and the compressors 21a, 21b are driven on at a given rotation number. This can shorten the rising time of the heating capacity in the start of the normal heating operation.
    Type: Grant
    Filed: September 13, 2012
    Date of Patent: June 2, 2015
    Assignee: FUJITSU GENERAL LIMITED
    Inventors: Hideya Tamura, Takahiro Matsunaga, Shinju Watanabe, Keito Kawai, Takashi Kimura, Kotaro Toya, Yasuhiro Oka, Ken Nakashima
  • Patent number: 9032396
    Abstract: A server apparatus, a terminal apparatus and an application control system are provided. An application managing unit (11) determines an application to be transmitted to a terminal (20) on the basis of execution capability information and terminal state information received from the terminal (20). An application transmitting unit (12) transmits the determined application and a priority record of each application to the terminal (20) through a server transmitting unit (18). An installing unit (28) installs the received application. An application executing unit (29) controls execution of the application on the basis of execution priority represented by the received priority record and controls an output of image information generated by the application on the basis of display priority represented by the received priority record.
    Type: Grant
    Filed: June 9, 2011
    Date of Patent: May 12, 2015
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Ken Nakashima, Norihiko Aonuma, Hitoshi Nishikawa
  • Publication number: 20140026603
    Abstract: An outdoor unit for an air-conditioning apparatus includes an outdoor heat exchanger; a compressor; a refrigerant pipe configured to couple the outdoor heat exchanger and the compressor with an indoor unit including an indoor heat exchanger; and a control unit that determines whether the heating capacity of the indoor unit performing a heating operation is decreased by the refrigerant stagnated in the indoor heat exchanger.
    Type: Application
    Filed: July 16, 2013
    Publication date: January 30, 2014
    Inventors: Kotaro Toya, Hideya Tamura, Takahiro Matsunaga, Shinju Watanabe, Takashi Kimura, Yasuhiro Oka, Ken Nakashima
  • Publication number: 20140007601
    Abstract: An outdoor unit for an air-conditioning apparatus includes: a compressor; an outdoor fan; a plurality of outdoor heat exchangers coupled to a plurality of indoor units; a switching member configured to switch functions of the outdoor heat exchangers to either condensers or evaporators by switching of coupling states between the compressor and the outdoor heat exchangers; and a control unit configured to calculate a low pressure saturation temperature during a cooling operation or a cooling-main operation, and configured to cause all of the plurality of outdoor heat exchangers to serve as condensers by controlling the switching member when a state in which an open-air temperature is lower than the low pressure saturation temperature continues for a predetermined time.
    Type: Application
    Filed: July 2, 2013
    Publication date: January 9, 2014
    Inventors: Hideya Tamura, Takahiro Matsunaga, Shinju Watanabe, Keito Kawai, Takashi Kimura, Kotaro Toya, Yasuhiro Oka, Ken Nakashima
  • Publication number: 20130227978
    Abstract: An air conditioner 1 of the embodiment of the present invention, when all compressors 21a-21c have been stopping for a given time or more, starts an air conditioning operation without performing pressure equalizing control in switch units 6a-6d with starting the operation of the air conditioner 1. Also, when the stopping time of all compressors 21a-21c is less than the given time, the air conditioner 1 performs the pressure equalizing control by controlling switch units 6a-6d with starting the operation of the air conditioner 1. In this case, when the stopping time reaches the given time during execution of the pressure equalizing processing control, the pressure equalizing processing control being executed is stopped and the air conditioning operation is started.
    Type: Application
    Filed: January 3, 2013
    Publication date: September 5, 2013
    Applicant: Fujitsu General Limited
    Inventors: Keito KAWAI, Hideya TAMURA, Takahiro MATSUNAGA, Shinju WATANABE, Takashi KIMURA, Kotaro TOYA, Yasuhiro OKA, Ken NAKASHIMA
  • Publication number: 20130081417
    Abstract: An air conditioning apparatus 1 includes first start control and second start control as its start control. In the first start control, first outdoor heat exchangers 24a, 24b are controlled to function as evaporators and second outdoor heat exchangers 25a, 25b are controlled to function as condensers. Thus, even when the compressors 21a, 21b are driven on at a given rotation number, the discharge pressures thereof can be prevented from increasing, thereby being able to prevent the internal pressures of the compressors 21a, 21b from increasing. Also, after end of the first start control, the first outdoor heat exchangers 24a, 24b and second outdoor heat exchangers 25a, 25b are all controlled to function as evaporators, and the compressors 21a, 21b are driven on at a given rotation number. This can shorten the rising time of the heating capacity in the start of the normal heating operation.
    Type: Application
    Filed: September 13, 2012
    Publication date: April 4, 2013
    Applicant: FUJITSU GENERAL LIMITED
    Inventors: Hideya TAMURA, Takahiro MATSUNAGA, Shinju WATANABE, Keito KAWAI, Takashi KIMURA, Kotaro TOYA, Yasuhiro OKA, Ken NAKASHIMA
  • Publication number: 20130086577
    Abstract: A server apparatus, a terminal apparatus and an application control system are provided. An application managing unit (11) determines an application to be transmitted to a terminal (20) on the basis of execution capability information and terminal state information received from the terminal (20). An application transmitting unit (12) transmits the determined application and a priority record of each application to the terminal (20) through a server transmitting unit (18). An installing unit (28) installs the received application. An application executing unit (29) controls execution of the application on the basis of execution priority represented by the received priority record and controls an output of image information generated by the application on the basis of display priority represented by the received priority record.
    Type: Application
    Filed: June 9, 2011
    Publication date: April 4, 2013
    Applicant: SHARP KABUSHIKI KAISHA
    Inventors: Ken Nakashima, Norihiko Aonuma, Hitoshi Nishikawa
  • Publication number: 20130019622
    Abstract: A CPU 110 compares the extracted outside air temperature with a first low pressure saturation temperature. When the outside air temperature is lower than the first low pressure saturation temperature, the CPU 110 switches a first three-way valve 22 and a second three-way valve 23 so that a second outdoor heat exchanger 25 is used as a condenser and that a first outdoor heat exchanger 24 is not used. When the outside air temperature is higher than a second low pressure saturation temperature which is the first low pressure saturation temperature to which a predetermined temperature is added, the CPU 110 switches the first three-way valve 22 and the second three-way valve 23 so that the first outdoor heat exchanger 24 is used as a condenser and that the second outdoor heat exchanger 25 is not used.
    Type: Application
    Filed: July 19, 2012
    Publication date: January 24, 2013
    Applicant: FUJITSU GENERAL LIMITED
    Inventors: Ken NAKASHIMA, Hideya TAMURA, Takahiro MATSUNAGA, Shinju WATANABE, Keito KAWAI, Kotaro TOYA, Yasuhiro OKA
  • Patent number: 8189470
    Abstract: Provided is a communication apparatus by which a user can simply set a transmission quality in a network and QoS control effectively functions. QoS type receiving sections (11, 21, 31, 41) are arranged in communication apparatuses (10, 20, 30, 40) on a network, and a user is permitted to specify a QoS type to be requested to the communication apparatuses (10, 20, 30, 40), by operating the QoS type receiving sections (11, 21, 31, 41). When the communication apparatuses (10, 20, 30, 40) perform communication, the network is controlled to ensure the QoS corresponding to the QoS type received by the QoS type receiving sections (11, 21, 31, 41).
    Type: Grant
    Filed: July 4, 2007
    Date of Patent: May 29, 2012
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Ken Nakashima, Kentaroh Hama, Wataru Gohda, Yuhsuke Yamada
  • Patent number: 7852823
    Abstract: When a transmission station having a voluntary transmission right transmits FINALL FRAME as a TXOP ending frame to HC, the HC transmits an acknowledgement frame ACK after SIFS following the reception of FINAL FRAME. Here, when the transmitting station has detected that no frame transmission is performed over the communication network from any other ESTAs in PIFS after the transmission of FINAL FRAME, FINAL FRAME is retransmitted in DIFS after the transmission of FINAL FRAME. By performing such a communication management, it is possible to accurately manage a voluntary transmission right even when the communication medium has a low reliability in a network in which one network pathway is time-shared by a plurality of communication apparatuses.
    Type: Grant
    Filed: September 12, 2002
    Date of Patent: December 14, 2010
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Ken Nakashima, Yoshihiro Ohtani, Toru Ueda, Srinivas Kandala
  • Patent number: 7755088
    Abstract: A thin film transistor array substrate including an insulating substrate, a first metallic pattern formed on the insulating substrate, and an insulating film provided on the first metallic pattern. A semiconductor pattern is provided on the insulating film, and a second metallic pattern is provided on the semiconductor pattern. The second metallic pattern is surrounded by the semiconductor pattern.
    Type: Grant
    Filed: May 27, 2008
    Date of Patent: July 13, 2010
    Assignee: Mitsubishi Electric Corporation
    Inventors: Kazuhiro Kobayashi, Ken Nakashima, Nobuhiro Nakamura