Patents by Inventor Masayoshi Wada

Masayoshi Wada 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: 20030044471
    Abstract: An object of the invention is to provide an inorganic antibacterial/antifungal agent that have distinguished multiple functions on the whole with respect to antibacterial and antifungal activities, safety, stability, economical efficiency, and so on.
    Type: Application
    Filed: September 12, 2001
    Publication date: March 6, 2003
    Inventors: Kenichi Sakuma, Shuji Nishihama, Masayoshi Wada, Hideyuki Gomyo
  • Publication number: 20020181961
    Abstract: Continuous photo film includes a support of resin film having a back surface. A photosensitive layer of photographic emulsion is disposed on a surface of the support opposite to the back surface. A conveying roller conveys the continuous photo film. The conveying roller includes a roller body of metal. A hardness reinforcer layer is formed on a surface of the roller body by thermal spraying of ceramic or cermet, so that the roller body surface is prevented from being scratched or ground by the back surface of the film.
    Type: Application
    Filed: July 18, 2002
    Publication date: December 5, 2002
    Applicant: FUJI PHOTO FILM CO., LTD.
    Inventors: Akihiro Sanda, Takashi Kubo, Hideki Matsuzawa, Masayoshi Wada
  • Patent number: 6447179
    Abstract: Continuous photo film includes a support of resin film having a back surface. A photosensitive layer of photographic emulsion is disposed on a surface of the support opposite to the back surface. A conveying roller conveys the continuous photo film. The conveying roller includes a roller body of metal. A hardness reinforcer layer is formed on a surface of the roller body by thermal spraying of ceramic or cermet, so that the roller body surface is prevented from being scratched or ground by the back surface of the film.
    Type: Grant
    Filed: September 1, 1998
    Date of Patent: September 10, 2002
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Akihiro Sanda, Takashi Kubo, Hideki Matsuzawa, Masayoshi Wada
  • Patent number: 6408230
    Abstract: An omnidirectional vehicle includes a body, and a plurality of units, each unit including a bearing rotatably supporting a steering shaft around a vertical axis with a rotor plate, and a driving wheel axially supported by a supporter fixed to the rotor plate. The driving wheel is positioned at a location spaced apart for a first offset distance from the steering shaft in the rolling direction of the driving wheel and spaced apart for a second offset distance from the steering shaft in the direction perpendicular to the rolling direction of the driving wheel. A first motor is fixed to the body for driving the steering shaft, and a second motor is fixed to the body for rotating the driving wheel. In the holonomic omnidirectional vehicle, the control system and the driving system are simplified, and interference therebetween is prevented. Also, it is possible to reduce the capacities of the actuators, the electric power for driving the vehicle and the manufacturing costs.
    Type: Grant
    Filed: January 16, 2001
    Date of Patent: June 18, 2002
    Assignee: Fuji Electric Co., Ltd.
    Inventor: Masayoshi Wada
  • Publication number: 20020053123
    Abstract: Continuous photo film includes a support of resin film having a back surface. A photosensitive layer of photographic emulsion is disposed on a surface of the support opposite to the back surface. A conveying roller conveys the continuous photo film. The conveying roller includes a roller body of metal. A hardness reinforcer layer is formed on a surface of the roller body by thermal spraying of ceramic or cermet, so that the roller body surface is prevented from being scratched or ground by the back surface of the film.
    Type: Application
    Filed: September 1, 1998
    Publication date: May 9, 2002
    Inventors: AKIHIRO SANDA, TAKASHI KUBO, HIDEKI MATSUZAWA, MASAYOSHI WADA
  • Publication number: 20010008985
    Abstract: An omnidirectional vehicle includes a body, and a plurality of units, each unit including a bearing rotatably supporting a steering shaft around a vertical axis with a rotor plate, and a driving wheel axially supported by a supporter fixed to the rotor plate. The driving wheel is positioned at a location spaced apart for a first offset distance from the steering shaft in the rolling direction of the driving wheel and spaced apart for a second offset distance from the steering shaft in the direction perpendicular to the rolling direction of the driving wheel. A first motor is fixed to the body for driving the steering shaft, and a second motor is fixed to the body for rotating the driving wheel. In the holonomic omnidirectional vehicle, the control system and the driving system are simplified, and interference therebetween is prevented. Also, it is possible to reduce the capacities of the actuators, the electric power for driving the vehicle and the manufacturing costs.
    Type: Application
    Filed: January 16, 2001
    Publication date: July 19, 2001
    Inventor: Masayoshi Wada
  • Patent number: 5927423
    Abstract: A reconfigurable mechanism for varying the footprint of a wheeled omnidirectional vehicle. The variable footprint mechanism consists of a pair of beams intersecting at a pivotal point in the middle. Two pairs of ball wheels at the diagonal positions of the vehicle chassis are mounted, respectively, on the two beams intersecting in the middle. The angle between the two beams varies actively so that the ratio of the wheel base to the tread may change. Independent servomotors driving the ball wheels allow the vehicle to move in an arbitrary direction from an arbitrary configuration as well as to change the angle between the two beams and thereby change the footprint. By controlling the beam angle, static stability may be augmented, the width of the vehicle may be reduced, and the effective transmission ratio relating the vehicle speed to individual actuator speeds may be varied in a continuous manner.
    Type: Grant
    Filed: March 5, 1998
    Date of Patent: July 27, 1999
    Assignee: Massachusetts Institute of Technology
    Inventors: Masayoshi Wada, Haruhiko H. Asada
  • Patent number: 5924512
    Abstract: An omnidirectional vehicle supports the steering shaft M of the driving wheel 1 serving also as a steering wheel through the shaft stub 8 on the body 7 at the point displaced by a distance S horizontally from the ground contact point of the driving wheel 1, turns the driving wheel 1 by the motor 5 and rotates the steering shaft M by the motor 12 to translate the body 7 back and forth as well as sidewise as desired. The vehicle is controlled to move on the reference trajectory based on the ratio of the angular velocity of the driving wheel 1 and the angular velocity of the steering shaft M. The ratio is calculated based on the position and orientation of the body 7 and the steering angle of the steering shaft M, detected by the sensors, and the reference trajectory of the vehicle.
    Type: Grant
    Filed: December 11, 1995
    Date of Patent: July 20, 1999
    Assignee: Fuji Electric Co., Ltd.
    Inventor: Masayoshi Wada
  • Patent number: 5765474
    Abstract: A photo film cassette has a spool about which photo film is wound. A data disk is disposed near to an axial end of a core of the spool. To record a bar code on the data disk in manufacturing the photo film cassette, a hot stamping apparatus includes at least one spool holder for holding the spool in a slidable manner while the core is erect and the data disk is oriented upwards. A disk support supports the data disk. A slider shifts the disk support between a retracted position away from the spool holder and an advanced position close to the spool holder. The disk support in the advanced position is adapted to lift the data disk by contact with a bottom of the data disk. A hot stamping head is pressed against a top of the data disk, and records a bar code thereto. Cushion springs are biasing the disk support up toward the hot stamping head.
    Type: Grant
    Filed: November 20, 1996
    Date of Patent: June 16, 1998
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Toshiro Esaki, Masayoshi Wada, Hideki Matsuzawa
  • Patent number: 5373454
    Abstract: A pressure device control apparatus including a pressure source having a pump, and an accumulator connected to the pump and a pressure device, and a pressure detector for detecting the pressure in the accumulator; a normally-closed type solenoid valve interposed between the pressure device and the accumulator or a fluid tank; and a control unit having a drive control device for outputting a driving signal indicative of a command to operate the pump in response to a detection pressure detected in the pressure detector becoming equal to or less than a first predetermined pressure and a drive stopping signal indicative of a command for stopping the operation of the pump in response to the detection pressure becoming equal to or more than a second predetermined pressure which is higher than the first predetermined pressure.
    Type: Grant
    Filed: January 14, 1992
    Date of Patent: December 13, 1994
    Assignee: Honda Giken Kogyo Kabushiki Kaisha
    Inventors: Toshiya Kanda, Yoshitaka Miyakawa, Masayoshi Wada, Kougyoku Go
  • Patent number: 5364173
    Abstract: A pressure source for a pressure device includes a pump for pumping fluid from fluid tank, an accumulator connected to the pump and a pressure device, a device for detecting the pressure in the accumulator, and a controller for controlling the operation of the pump in an ON-OFF manner on the basis of a result of detection by the pressure detecting device. In this pressure source, the controller includes first and second drive signal generating circuits each capable of independently generating a drive signal for determining the on-off operation of the pump, and a judging circuit which has a calculating function therein and to which at least the pressure detecting device is connected. The judging circuit is connected to the first drive signal generating circuit, and the pressure detecting device is connected to the second drive signal generating circuit.
    Type: Grant
    Filed: February 25, 1994
    Date of Patent: November 15, 1994
    Assignee: Honda Giken Kogyo Kabushiki Kaisha
    Inventors: Masayoshi Wada, Shohei Matsuda, Toshio Yahagi, Shinichi Inagawa
  • Patent number: 4867665
    Abstract: A plastic material molding apparatus, wherein when the pressure at a material inlet of a cylinder of a material holding mechanism increases as a piston in the cylinder compresses a resilient member provided in the material holding mechanism, the speed of a motor for driving a material fluidizing mechanism is reduced. A servo motor for intermittently driving a plastic material metering and delivering mechanism is controlled according to the revolution speed and a predetermined total number of revolutions of the servo motor and to the number of pulses from a pulse generator provided in the servo motor. A relief valve is interposed between a material delivery port and a delivery nozzle of the metering and delivering mechanism, the relief valve being adapted to open when the material pressure at the delivery port is higher than the relief pressure, the relief pressure being set higher than the vapor pressure according to the temperature of the material at the delivery port.
    Type: Grant
    Filed: September 9, 1988
    Date of Patent: September 19, 1989
    Assignee: Nakatani Kikai Kabushiki Kaisha
    Inventor: Masayoshi Wada