Patents by Inventor Yasuo Asakura

Yasuo Asakura 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: 5177994
    Abstract: An odor sensing system is comprised of a sensor cell including a plurality of quartz resonator sensors aligned therein to detect odor by variation of resonance frequencies derived from weight loading on surfaces thereof, a recognition line including a neural network which recognizes data obtained by subtraction between an output signal of the sensor as frequency variation and, a reference signal selected by one of the output signals of the sensor. The sensor cell is thermostatically regulated by circulating thermostatic water therein to maintain the temperature higher than an advance line of the system. A sample to be recognized is supplied to the sensor cell in a form of vapor generated by blowing a standard gas onto the surface of the sample.
    Type: Grant
    Filed: May 22, 1991
    Date of Patent: January 12, 1993
    Assignee: Suntory Limited and Tokyo Institute of Technology
    Inventors: Toyosaka Moriizumi, Takamichi Nakamoto, Atsushi Fukuda, Yasuo Asakura
  • Patent number: 5075708
    Abstract: An automatic camera charging apparatus having a film housing chamber arranged on the camera body side and a film winding chamber arranged on the camera back lid side so that, when a film is inserted at the tip into a film inserting port while the back lid is opened, it may be detected, a pre-load of winding the film at the tip on a spool at a fixed speed may be made, and then the film may be vacantly fed in response to the back lid closing operation and thus the camera may be automatically charged with the film.
    Type: Grant
    Filed: November 28, 1990
    Date of Patent: December 24, 1991
    Assignee: Olympus Optical Co., Ltd.
    Inventors: Yoichiro Okumura, Yasuo Asakura, Keita Takahashi
  • Patent number: 5019845
    Abstract: A flash device for a camera comprises a plurality of flash light emitting portions having different flash illumination angles. A single common electric charge storage supplies energy to each of the flash light emitting portions. Each of a plurality of triggers corresponds to one of flash light emitting portions. In response to the focal length of a taking lens disposed in the camera, a controller determines which of a plurality of the flash light emitting portions to be fired and trigger the appropriate trigger corresponding to the flash light emitting portion to be fired.
    Type: Grant
    Filed: June 12, 1990
    Date of Patent: May 28, 1991
    Assignee: Olympus Optical Co., Ltd.
    Inventors: Yasuo Asakura, Yuji Imai, Yuji Kobayashi
  • Patent number: 4958175
    Abstract: A motor driven camera includes a plurality of motors for independently driving individual actuators of a camera such as film winder, shutter charger, a drive associated with a movable reflecting mirror and diaphragm driver. In addition, the camera includes a storage battery, a drive circuit for feeding the power from the battery to the plurality of motors, and a controller which controls the drive circuit. In accordance with the invention, a film winding rate or the rotational speed of a motor which performs a shutter charging operation or the speed of operation of the movable reflecting mirror or the voltage of the power supply is detected, and the plurality of motors are automatically switched between the concurrent drive and the sequential drive in accordance with the detected value. Subsequent to the switching, either drive to which the operation is switched is maintained.
    Type: Grant
    Filed: February 16, 1989
    Date of Patent: September 18, 1990
    Assignee: Olympus Optical Co., Ltd.
    Inventors: Yasuo Asakura, Toshiyuki Toyofuku, Yuji Imai
  • Patent number: 4862207
    Abstract: A diaphragm apparatus is disclosed including a piezoelectric actuator of bimorph type. A drive circuit associated with the actuator applies a voltage corresponding to a diaphragm aperture which is calculated in accordance with a photometric value to the actuator to produce a displacement thereof, which is transmitted through a diaphragm operating member to open or close diaphragm blades so as to control a diaphragm aperture. The drive circuit applies a reset voltage which resets the diaphragm blades to a predetermined reset condition, to the piezoelectric actuator, and after the resetting operation, it applies a voltage corresponding to a given diaphragm aperture to the piezoelectric actuator.
    Type: Grant
    Filed: May 18, 1988
    Date of Patent: August 29, 1989
    Assignee: Olympus Optical Company Limited
    Inventors: Yasuo Asakura, Toshiyuki Toyofuku
  • Patent number: 4786300
    Abstract: An air conditioner is installed in the respective floors of a building and has a housing built in a space between the ceiling of one story and the floor of another story lying above the story. The housing is provided with a first suction port and a first ejection port which communicate with the upper story through the floor, and a second suction port and a second ejection port which communicate with the lower story through the ceiling. A condensation heat exchanger and an evaporation heat exchanger are arranged in the housing. A first blower is arranged in the housing to conduct the air of the upper story into the housing through the first suction port and discharge the air into the upper story through the heat exchanger and first ejection port. A second blower is arranged in the housing to conduct the air of the lower story into the housing through the second suction port and discharge the air into the lower story through the heat exchanger and second ejection port.
    Type: Grant
    Filed: July 20, 1984
    Date of Patent: November 22, 1988
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Masao Uematsu, Yasuo Asakura
  • Patent number: 4615600
    Abstract: A camera of the automatic aperture control type permits stop-down means which operates a diaphragm in cooperation with a shutter release operation first to move forward from a first position corresponding to the open aperture to a second position corresponding to a minimum aperture and then to move back from the second position toward the first position. The camera includes storage means for storing a position occupied by the stop-down means when the diaphragm assumes a proper aperture while the stop-down means moves from the first position to the second position so that the stop-down means is stopped at the stored position while the stop-down means moves back from the second position toward the first position.
    Type: Grant
    Filed: November 5, 1984
    Date of Patent: October 7, 1986
    Assignee: Olympus Optical, Co. Ltd.
    Inventors: Yukio Nakajima, Tatsuji Higuchi, Yasuo Asakura