Patents by Inventor Kiyokazu Fujikawa

Kiyokazu Fujikawa 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: 6981336
    Abstract: There is disclosed a washing/drying machine having a purpose of shortening a time required for a washing operation and improving an operation efficiency, and comprising: an inner drum in which things to be washed are accommodated and in which a washing operation of the things to be washed and a drying operation after end of the washing operation are performed; a water supply passage for supplying water into the inner drum and a drainage passage for discharging the water from the inner drum in the washing operation; a refrigerant circuit in which a compressor, a gas cooler, an expansion valve, an evaporator and the like are successively connected to one another in an annular form via a piping and in which carbon dioxide is used as a refrigerant; and a blower for blowing air which has exchanged heat with the gas cooler into the inner drum to allow the air passed through the inner drum to exchange the heat with the evaporator in the drying operation.
    Type: Grant
    Filed: September 24, 2004
    Date of Patent: January 3, 2006
    Assignee: Sanyo Electric Co., Ltd.
    Inventors: Etsushi Nagae, Hiroshi Mukaiyama, Koji Ono, Masaya Tadano, Tetsuya Masuda, Kazuyoshi Tomochika, Takahiro Nakamura, Masakatsu Morishige, Harumi Takeuchi, Kiyokazu Fujikawa, Tamotsu Kawamura, Motohiko Kosano, Shinichi Akiyama, Nobuo Koumoto
  • Patent number: 6938356
    Abstract: A washing/drying machine has objects to shorten a time required for a washing operation, to improve a heat exchange capability in a radiator and an evaporator, and to shorten a drying time for things to be dried, and comprises: an accommodating chamber in which things to be washed (things to be dried) are accommodated and in which a drying operation of the things to be washed is performed; a refrigerant circuit in which a compressor, a gas cooler, a decompression device, an evaporator and the like are successively connected to one another in an annular form via a piping and in which carbon dioxide is used as a refrigerant and which has a supercritical pressure on a high pressure side thereof; and blower means for blowing air which has exchanged heat with the radiator into the accommodating chamber to allow the air passed through the accommodating chamber to exchange the heat with the evaporator, wherein the blower means constitutes a circulation direction of the air passed through the gas cooler, and that of
    Type: Grant
    Filed: September 2, 2004
    Date of Patent: September 6, 2005
    Assignee: Sanyo Electric Co., Ltd.
    Inventors: Etsushi Nagae, Hiroshi Mukaiyama, Koji Ono, Masaya Tadano, Tetsuya Masuda, Kazuyoshi Tomochika, Takahiro Nakamura, Masakatsu Morishige, Harumi Takeuchi, Kiyokazu Fujikawa, Tamotsu Kawamura, Motohiko Kosano, Shinichi Akiyama, Nobuo Koumoto
  • Publication number: 20050086827
    Abstract: A washing/drying machine has objects to shorten a time required for a washing operation, to improve a heat exchange capability in a radiator and an evaporator, and to shorten a drying time for things to be dried, and comprises: an accommodating chamber in which things to be washed (things to be dried) are accommodated and in which a drying operation of the things to be washed is performed; a refrigerant circuit in which a compressor, a gas cooler, a decompression device, an evaporator and the like are successively connected to one another in an annular form via a piping and in which carbon dioxide is used as a refrigerant and which has a supercritical pressure on a high pressure side thereof; and blower means for blowing air which has exchanged heat with the radiator into the accommodating chamber to allow the air passed through the accommodating chamber to exchange the heat with the evaporator, wherein the blower means constitutes a circulation direction of the air passed through the gas cooler, and that of
    Type: Application
    Filed: September 2, 2004
    Publication date: April 28, 2005
    Inventors: Etsushi Nagae, Hiroshi Mukaiyama, Koji Ono, Masaya Tadano, Tetsuya Masuda, Kazuyoshi Tomochika, Takahiro Nakamura, Masakatsu Morishige, Harumi Takeuchi, Kiyokazu Fujikawa, Tamotsu Kawamura, Motohiko Kosano, Shinichi Akiyama, Nobuo Koumoto
  • Publication number: 20050072022
    Abstract: There is disclosed a washing/drying machine having a purpose of shortening a time required for a washing operation and improving an operation efficiency, and comprising: an inner drum in which things to be washed are accommodated and in which a washing operation of the things to be washed and a drying operation after end of the washing operation are performed; a water supply passage for supplying water into the inner drum and a drainage passage for discharging the water from the inner drum in the washing operation; a refrigerant circuit in which a compressor, a gas cooler, an expansion valve, an evaporator and the like are successively connected to one another in an annular form via a piping and in which carbon dioxide is used as a refrigerant; and a blower for blowing air which has exchanged heat with the gas cooler into the inner drum to allow the air passed through the inner drum to exchange the heat with the evaporator in the drying operation.
    Type: Application
    Filed: September 24, 2004
    Publication date: April 7, 2005
    Inventors: Etsushi Nagae, Hiroshi Mukaiyama, Koji Ono, Masaya Tadano, Tetsuya Masuda, Kazuyoshi Tomochika, Takahiro Nakamura, Masakatsu Morishige, Harumi Takeuchi, Kiyokazu Fujikawa, Tamotsu Kawamura, Motohiko Kosano, Shinichi Akiyama, Nobuo Koumoto
  • Patent number: 6627073
    Abstract: The present invention is directed to a new water treatment device comprising an electrolytic tank to put water in, an electrode provided in the electrolytic tank, a water treating path for pouring, from a pool storing water, the water into the electrolytic tank and returning to the pool the water in the electrolytic tank, a residual chlorine sensor for measuring the residual chlorine concentration of the water, and a circulating pump provided on the downstream side of the electrolytic tank on the water treating path in order to circulate the water, and capable of simply and efficiently sterilizing water stored in pools of various sizes from a swimming pool to a home bathtub.
    Type: Grant
    Filed: December 13, 2000
    Date of Patent: September 30, 2003
    Assignee: Sanyo Electric Co, Ltd.
    Inventors: Tatsuya Hirota, Yoshihiro Inamoto, Kiyokazu Fujikawa, Yozo Kawamura, Minoru Nakanishi, Minoru Kishi, Takaaki Yonezawa, Tamotsu Kawamura, Kazuhiro Yamamoto, Yasuhiko Shimizu, Yasuhito Kondo
  • Patent number: 6627053
    Abstract: The present invention is directed to a new water treatment device comprising an electrolytic tank to put water in, an electrode provided in the electrolytic tank, a water treating path for pouring water in a pool and returning to the pool the water in the electrolytic tank, a residual chlorine sensor for measuring the residual chlorine concentration of water, and control means for controlling the energization of the electrode on the basis of the measured value by the residual chlorine sensor, and capable of simply and efficiently sterilizing water stored in pools of various sizes from a swimming pool to a home bathtub.
    Type: Grant
    Filed: December 12, 2000
    Date of Patent: September 30, 2003
    Assignee: Sanyo Electric Co., Ltd.
    Inventors: Tatsuya Hirota, Yoshihiro Inamoto, Kiyokazu Fujikawa, Yozo Kawamura, Minoru Nakanishi, Minoru Kishi, Takaaki Yonezawa, Tamotsu Kawamura, Kazuhiro Yamamoto, Yasuhiko Shimizu, Yasuhito Kondo
  • Publication number: 20010010296
    Abstract: The present invention is directed to a new water treatment device comprising an electrolytic tank to put water in, an electrode provided in the electrolytic tank, a water treating path for pouring, from a pool storing water, the water into the electrolytic tank and returning to the pool the water in the electrolytic tank, a residual chlorine sensor for measuring the residual chlorine concentration of the water, and a circulating pump provided on the downstream side of the electrolytic tank on the water treating path in order to circulate the water, and capable of simply and efficiently sterilizing water stored in pools of various sizes from a swimming pool to a home bathtub.
    Type: Application
    Filed: December 13, 2000
    Publication date: August 2, 2001
    Inventors: Tatsuya Hirota, Yoshihiro Inamoto, Kiyokazu Fujikawa, Yozo Kawamura, Minoru Nakanishi, Minoru Kishi, Takaaki Yonezawa, Tamotsu Kawamura, Kazuhiro Yamamoto, Yasuhiko Shimizu, Yasuhito Kondo
  • Publication number: 20010004962
    Abstract: The present invention is directed to a new water treatment device comprising an electrolytic tank to put water in, an electrode provided in the electrolytic tank, a water treating path for pouring water in a pool and returning to the pool the water in the electrolytic tank, a residual chlorine sensor for measuring the residual chlorine concentration of water, and control means for controlling the energization of the electrode on the basis of the measured value by the residual chlorine sensor, and capable of simply and efficiently sterilizing water stored in pools of various sizes from a swimming pool to a home bathtub.
    Type: Application
    Filed: December 12, 2000
    Publication date: June 28, 2001
    Inventors: Tatsuya Hirota, Yoshihiro Inamoto, Kiyokazu Fujikawa, Yozo Kawamura, Minoru Nakanishi, Minoru Kishi, Takaaki Yonezawa, Tamotsu Kawamura, Kazuhiro Yamamoto, Yasuhiko Shimizu, Yasuhito Kondo
  • Patent number: 5852881
    Abstract: The inventive clothes dryer is provided with a system for preventing the overheating of the clothes in the drum caused by the abnormality in the V-belt, such as the break or derailment thereof. By the system, the power supply to the motor is halted temporarily while the motor is rotated at a predetermined speed, whereafter the motor keeps rotating due to its inertia. During the inertial rotation of a predetermined period of time, the number of rotations of the motor is counted. When the V-belt is in the normal state, the motor is loaded appropriately, so that the speed of the motor falls rapidly during the inertial rotation, and the number of rotations is accordingly small. When, on the other hand, the V-belt is in an abnormal state, the number of rotations is large. Therefore, the state of the V-belt is checked by comparing the number of rotations to a predetermined value, and when the number is smaller than the predetermined value, the drying operation is stopped.
    Type: Grant
    Filed: July 22, 1997
    Date of Patent: December 29, 1998
    Assignee: Sanyo Electric Co., Ltd.
    Inventors: Kouichi Kuroda, Tatsuya Hirota, Kiyokazu Fujikawa, Youzou Kawamura, Tamotu Kawamura, Takashi Fukuda, Hisanori Hirose
  • Patent number: 5544428
    Abstract: A clothes drier according to the present invention can minimize failures in a sensor and can satisfactorily detect drying processing irrespective of the environment. In the clothes drier, an atmospheric temperature sensor 44L for detecting the substrate temperature required to determine the termination of the drying processing is disposed outside a circulating duct 18 and is mounted on a control substrate 42 having a thermal capacity on which a microcomputer for controlling operations performed by the clothes drier is mounted. Since the sensor 44L is provided outside the circulating duct 18, the sensor 44L is less affected by dust and water, as compared with a case where it is provided inside the circulating duct 18.
    Type: Grant
    Filed: April 3, 1995
    Date of Patent: August 13, 1996
    Assignee: Sanyo Electric Co., Ltd.
    Inventors: Koichi Kuroda, Yoshiaki Aoki, Kiyokazu Fujikawa, Youzon Kawamura, Tatsuya Hirota, Tamotsu Kawamura, Takashi Fukuda, Minoru Kishi, Hisanori Hirose
  • Patent number: 5072526
    Abstract: A clothes dryer comprising a body having a drying chamber defined for accommodating clothes; a heater provided in the body; a heated air path for supplying dried air heated by the heater to the drying chamber to dry the clothes placed in the drying chamber; a door for closing and opening the drying chamber; a porous member impregnated with an agent; a supporting member provided on the door, detachably holding the porous member and provided with an aperture for supplying the agent held by the porous member into the drying chamber.
    Type: Grant
    Filed: December 18, 1989
    Date of Patent: December 17, 1991
    Assignee: Sanyo Electric Co., Ltd.
    Inventors: Tatsuya Hirota, Kiyokazu Fujikawa, Yoshiaki Aoki, Tamotsu Kawamura, Yozo Kawamura, Kouichi Tanaka, Takafumi Hamano
  • Patent number: 4974339
    Abstract: A clothes dryer having a body with heater therein and a rotatable drying chamber is provided with a dual side rotating bladed heat exchange type fan having in its outer portion a group of grooves; and a partition member having an opening whose inner surface is opposed to the outer surface of said dual side bladed fan for separating paths of heated air and cooling air together with said dual side bladed fan in said body; the partition member has a group of fixed grooves interleaved with the fan rotating grooves to form a labyrinth seal; the fixed grooves extend from a base or the partition member and have a rising portion extending in the heated air path to inhibit the leakage of heated air from the heated air path to the cooling air path and have an opening to provide communication between the heated air and the cooling air.
    Type: Grant
    Filed: April 27, 1989
    Date of Patent: December 4, 1990
    Assignee: Sanyo Electric Co., Ltd.
    Inventors: Tamotsu Kawamura, Tatsuya Hirota, Kiyokazu Fujikawa, Yoshiaki Aoki, Kouichi Tanaka, Yozo Kawamura