Patents Assigned to Miwa Science Laboratory Inc.
  • Patent number: 7399284
    Abstract: An ultrasonic irradiation apparatus irradiates ultrasonic waves onto a wide area having three-dimensionally curved surfaces. An ultrasonic irradiator having a plurality of ultrasonic transducer is arranged in a plane. The position of at least a portion of the ultrasonic transducers is mutually and flexibly changeable in three dimensions. Ultrasonic transducers are installed on a surface of a flexible and/or elastic sheet member or net member. The ultrasonic irradiator may include a plurality of ultrasonic transducers formed on a flexible piezoelectric sheet member, including driving electrodes arranged on one surface and opposed electrodes arranged on another surface. The ultrasonic irradiator may be installed on or inside of a flexible planar bag containing a fluidic ultrasonic conductive medium. A mechanism is provided for moving or tilting the ultrasonic irradiator with respect to the object, or a band-holding member may be provided for fitting the irradiator to the object.
    Type: Grant
    Filed: May 22, 2001
    Date of Patent: July 15, 2008
    Assignee: Miwa Science Laboratory Inc.
    Inventors: Hirohide Miwa, Hiroaki Miwa, Masato Kino
  • Patent number: 6450979
    Abstract: This invention discloses an equipment for lipolysis of fat of a living body by ultrasound sonication. An effective ultrasound is characterized in low frequency 15-140 kHz region, by an intensity when in a range of 15-50 kHz, which is greater than 10 mw/cm2and below a hemolysis limit, and an intensity when in a range of 50-140 kHz, which is greater than 4 mW/cm2 and below the hemolysis limit or the safety level defined by MI. The invention is further characterized in a high frequency 180-1.3 MHz region, by an intensity when in a range of 180-700 kHz, which is greater than 10 mw/cm2 and below the safety level defined by M.I, and the intensity when in a range of 700 kHz-1.3 MHz, which is greater than 800 mw/cm2and below the safety level defined by MI.
    Type: Grant
    Filed: August 4, 2000
    Date of Patent: September 17, 2002
    Assignee: Miwa Science Laboratory Inc.
    Inventors: Hirohide Miwa, Masato Kino
  • Patent number: 6173473
    Abstract: An electric cleaner head including a first bank of a plurality of spaced apart nozzles each including an interior passage having a narrower width than length slit. Sources of air flow including at least one suction source are connected to spaces between the subnozzles to generate air flow around a lowest edge of the subnozzles between the subnozzles and spaces between the subnozzles wherein the interior passages of the subnozzles are isolated from the suction source.
    Type: Grant
    Filed: October 15, 1997
    Date of Patent: January 16, 2001
    Assignee: Miwa Science Laboratory Inc.
    Inventor: Hirohide Miwa
  • Patent number: 5647092
    Abstract: In a recirculating type cleaner a dust collecting head having a dust collecting port in the bottom thereof is provided, and a nozzle is provided in the dust collecting head. At least a fraction of the after-flow air of a fan is passed through a recirculating tube to the nozzle from which air jet is issued. A contact member is provided in the dust collecting head for contacting carpet piles being cleaned within a portion of the region of the dust collecting port to bend the piles down in the sweeping direction when the cleaner is moved in its sweeping stroke, whereby a gorge is opened in the piles. The nozzle is oriented such that the air jet issued through the nozzle is directed to the bottom of the gorge. Pile bend inverting member is also provided to create the gorge positively by mechanical pushing of the piles just behind the gorge to the reverse direction of the cleaning stroke.
    Type: Grant
    Filed: June 28, 1995
    Date of Patent: July 15, 1997
    Assignee: Miwa Science Laboratory Inc.
    Inventor: Hirohide Miwa
  • Patent number: 5613269
    Abstract: In a recirculating type cleaner, a jet nozzle is provided within a dust collecting head formed in the bottom face of the housing, the after-flow air from the suction fan is supplied through a recirculating tube to the jet nozzle. In the after-flow of the fan is provided a branch valve which is controlled by a controller to set the air recircuration ratio at a desired value suitable for any cleaning mode.
    Type: Grant
    Filed: April 4, 1995
    Date of Patent: March 25, 1997
    Assignee: Miwa Science Laboratory Inc.
    Inventor: Hirohide Miwa