Patents by Inventor Osamu Nagata

Osamu Nagata 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: 5066972
    Abstract: A slide printer exposes an elongated microcapsule sheet to a light image in an exposure position, and, thereafter, a pressure development unit forms a visible output image on a developer sheet superposed with the exposed portion of the microcapsule sheet. The slide printer includes two light paths which are provided between a slide projector and an exposure stand in the exposure position and switched by a movable reflector according to a selected one of A4 size and A3 size of the developer sheet. A first and second exposure area to be exposed to the light image are selectively set on the microcapsule sheet in the exposure stand. The second exposure area corresponding to A4 size is arranged within the first exposure area corresponding to A3 size and in the nearest position to the development unit in a feed path of the microcapsule sheet, thereby preventing an unexposed portion of the microcapsule sheet from being left on the side close to the development unit of the second exposure area.
    Type: Grant
    Filed: December 20, 1990
    Date of Patent: November 19, 1991
    Assignee: Brother Kogyo Kabushiki Kaisha
    Inventors: Osamu Nagata, Kazumasa Makino
  • Patent number: 5053805
    Abstract: An image recording apparatus incorporating two sheet cartridges each storing a photosensitive recording sheet. In one example of the invention, one of the sheet cartridge stores a microcapsule sheet adapted to record a full-color iamge and the other sheet cartridge stores another kind of microcapsule sheet adapted to record a monochromatic image. When a monochromatic image recording is to be performed, the relevant microcapsule sheet is selected and conveyed past an exposure station, a developing station, and a fixing station at a speed higher than a conveying speed of the full-color image recording microcapsule sheet. In another example of the invention, one of the sheet cartridge stores a microcapsule sheet adapted to record an image of a positive film and the other sheet cartridge stores a thermally developable silver halide photosensitive sheet adapted to record an image of a negative film.
    Type: Grant
    Filed: August 24, 1990
    Date of Patent: October 1, 1991
    Assignee: Brother Kogyo Kabushiki Kaisha
    Inventors: Jun Sakai, Osamu Nagata, Keiji Seo
  • Patent number: 5046517
    Abstract: A dishwashing machine having a washing chamber, a wash tank provided at a bottom of the washing chamber to store an amount of hot wash water therein, a wash pump mounted to a bottom portion of the tank to pump up the wash water therefrom, a pair of wash arms supplied with the wash water by the wash pump, a rinse pump arranged to pump up fresh hot water supplied thereto from a source of hot water, and a pair of rinse arms supplied with the fresh hot water by the rinse pump, a drain box arranged within an upper portion of the tank and associated with a side wall of the tank to form an opening in communication with the bottom portion of the tank, a drain pipe connected to a bottom wall of the drain box and being extended outwardly through the bottom wall of the tank to drain the wash water received by the drain box, an overflow pipe secured to the bottom wall of the drain box to permit the upward flow of wash water from the bottom of the tank, and a tiltable plate arranged above the drain box to introduce the wa
    Type: Grant
    Filed: August 29, 1990
    Date of Patent: September 10, 1991
    Assignee: Hoshizaki Denki Kabushiki Kaisha
    Inventors: Fumio Maruyama, Osamu Nagata, Tomio Suyama, Yukimasa Takeda, Hiroaki Kamino, Koji Suyama
  • Patent number: 5031650
    Abstract: A dishwashing machine has a washing chamber, a wash tank formed at a bottom of the washing chamber to store an amount of hot wash water therein, a wash pump mounted to a bottom portion of the wash tank, and a pair of upper and lower wash arms arranged to apply jet streams of the hot wash water supplied thereto from the pump over a rack of dishes placed in the washing chamber, wherein a strainer box is mounted within an upper portion of the wash tank to receive the wash water flowing down from the rack of dishes during washing operation and associated with a side wall of the wash tank to form an opening in communication with the bottom portion of the wash tank, the strainer box having a bottom in communication with a drain pipe to permit the flow of wash water drained therethrough, and wherein a distribution plate is arranged to receive the wash water and introduce it into the strainer box when placed in a first position and to receive the wash water and introduce it into the bottom portion of the wash tank th
    Type: Grant
    Filed: March 2, 1990
    Date of Patent: July 16, 1991
    Assignee: Hoshizaki Denki Kabushiki Kaisha
    Inventors: Osamu Nagata, Tokihiro Kuwahara, Naomoto Amano
  • Patent number: 5017852
    Abstract: An electric control apparatus for a dishwashing machine having a washing chamber, a wash pump arranged to be driven by an electric motor for pumping up wash water from a wash water storage tank in the washing chamber, and a revolving wash arm arranged within the washing chamber to be supplied with the wash water from the pump for directing jet streams of the wash water to a rack of tableware placed in the washing chamber. The electric control apparatus includes a microcomputer programmed to memorize control data defined in relation to the lapse of washing time such that the supply amount of wash water to the wash arm is intermittently increased and decreased after gradually increased up to a predetermined amount at an initial stage of washing operation and to control the rotational speed of the electric motor in accordance with the lapse of washing time based on the control data.
    Type: Grant
    Filed: January 25, 1990
    Date of Patent: May 21, 1991
    Assignee: Hoshizaki Denki Kabushiki Kaisha
    Inventors: Osamu Nagata, Tokihiro Kuwahara, Yukichi Suzawa, Hiroaki Kamino, Tomio Suyama, Tomoyoshi Konno
  • Patent number: 5010360
    Abstract: An image forming apparatus has a cathode ray tube as a light source which is controlled by a control circuit including an image signal inverting circuit for inverting a polarity of an image signal and a vertical deflecting circuit for inverting an image formed on the cathode ray tube in a mirror image relationship on the basis of the vertical synchronizing signal. Thus, the image forming apparatus can provide two kinds of color images obtained by using a microcapsule sheet or a silver chloride sheet.
    Type: Grant
    Filed: September 27, 1990
    Date of Patent: April 23, 1991
    Assignee: Brother Kogyo Kabushiki Kaisha
    Inventors: Takemi Yamamoto, Osamu Nagata, Ryohei Komiya, Jun Sakai, Yoshiyuki Ban
  • Patent number: 5006767
    Abstract: In a dishwashing machine having a washing chamber, an electrically operated wash pump for pumping out wash water from a wash tank in the washing chamber, an electrically operated rinse pump for pumping out heated water from a gas booster heater, and wash and rinse arms arranged within the washing chamber to be supplied with the wash and heated water from the wash and rinse pumps for directing jet streams of the wash and heated water to tableware racked in the washing chamber respectively, an electric control apparatus is arranged to mix cold water from a source of cold water into the heated water to form mixing water and to control the rinse pump such that the rinse arm directs jet stream of the mixing water to the racked tableware.
    Type: Grant
    Filed: March 2, 1990
    Date of Patent: April 9, 1991
    Assignee: Hoshizaki Denki Kabushiki Kaisha
    Inventors: Fumio Maruyama, Tomio Suyama, Hiroaki Kamino, Koji Suyama, Tokihiro Kuwahara, Osamu Nagata
  • Patent number: 4992823
    Abstract: An image recording apparatus using a microcapsule sheet on which a latent image is formed. The microcapsule sheet is accommodated within a sheet roll cartridge detachably provided to a main frame, and a take up means for winding light-exposed microcapsule sheet thereover. The cartridge and the take-up means are geometrically positioned at an upper portion of the main frame, so that these are easily assembleable and disassembleable. Preferrably, a link mechanism is provided which connects a cover member to the cartridge. The link mechanism provides disengagement of the cartridge from the main frame upon opening of the cover member, and provides an engagement therebetween upon closing thereof. Further, additional link mechanism is provided between the cover member and a separation roller unit. The separation roller unit is moved to a first direction where the roller is separated from the microcapsule sheet when the cover member is opened.
    Type: Grant
    Filed: December 8, 1988
    Date of Patent: February 12, 1991
    Assignee: Brother Kogyo Kabushiki Kaisha
    Inventors: Tsuyoshi Suzuki, Osamu Nagata, Makoto Yamada, Toshio Sugiura, Eiji Shibata, Kazuhito Ishida, Kazumasa Makino
  • Patent number: 4942430
    Abstract: An image recording apparatus for forming a latent image on a photosensitive pressure sensitive sheet and for developing the latent image on a developer sheet. The apparatus includes an exposure unit and a developing unit positioned close to each other. The apparatus also includes an optical system for irradiating light onto an original and directing the light reflected at the original toward the exposure zone. The original has an original image facing downwardly, and the photosensitive sheet has an imaging surface facing downwardly at the exposure zone. The optical system provides a U or J-shaped optical path extending from the original to the exposure zone. The optical system has reflection mirror unit vertically movably secured to a pair of frames of the apparatus. The frames are reinforced with a partition member which also functions as a light shielding member.
    Type: Grant
    Filed: December 8, 1988
    Date of Patent: July 17, 1990
    Assignee: Brother Kogyo Kabushiki Kaisha
    Inventors: Makoto Yamada, Osamu Nagata, Toshio Sugiura, Tsuyoshi Suzuki, Kazuhito Ishida, Eiji Shibata, Kazumasa Makino, Yoichi Horaguchi, Takashi Tomizawa, Shigeyuki Hayashi, Motoshi Ohno, Takashi Nakata
  • Patent number: 4924255
    Abstract: In order to adjust light components, there is provided a filter unit which includes a light source for emitting a light, a filter housing to which an opening is formed; and three filters arranged in vertical direction within the filter housing and adapted to be drawn from the opening. Each of the three filters adjusts one of red, blue and green components contained in the light. A drive unit is further included in the filter housing which selectively draws the three filters from the opening to an optical path. Accordingly, the light components can be adequately adjusted by drawing the filters in the optical path. By the employment of such a filter unit in a color image recording apparatus, the color tone of the image reproduced in a copy sheet can be adjusted.
    Type: Grant
    Filed: December 15, 1988
    Date of Patent: May 8, 1990
    Assignee: Brother Kogyo Kabushiki Kaisha
    Inventors: Yoichi Horaguchi, Kenji Sakakibara, Makoto Yamada, Osamu Nagata, Tsuyoshi Suzuki, Toshio Sugiura
  • Patent number: 4896198
    Abstract: In an image recording apparatus, a pair of support plates are provided in spaced-apart relation and in parallel to each other for rotatably supporting guide rollers for conveying a recording sheet, and a cartridge shaft around which the recording sheet in elongated, web-like form is wound. An outer casing is further provided which accommodates the support plates together with all components necessary for image recording. The casing has one wall arranged in the direction orthogonal to the surfaces of the support plate. A window is provided in that wall to facilitate maintenance of the apparatus.
    Type: Grant
    Filed: December 15, 1988
    Date of Patent: January 23, 1990
    Assignee: Brother Kogyo Kabushiki Kaisha
    Inventors: Toshio Sugiura, Osamu Nagata, Makoto Yamada, Tsuyoshi Suzuki
  • Patent number: 4758108
    Abstract: A printer, including a first and a second feed mechanism supported by a carriage for feeding a print ribbon and an erase ribbon, respectively, at least one rotatable shaft supported by the reciprocating carriage rotatably in opposite directions, a one-way clutch for transmitting the shaft rotation in one of the opposite directions to the first feed mechanism, and inhibiting transmission of the rotation in the other direction, and a control mechanism for inhibiting transmission of the shaft rotation to the second feed mechanism when the printer is in a printing mode, and transmitting the shaft rotation to the second ribbon mechanism when the printer is in a correction mode, whereby the carriage reciprocation activates the first and second feed mechanisms. A converter may be provided for converting the shaft rotation into movements of a ribbon lift to shift the erase ribbon between an erasing and an inoperative position.
    Type: Grant
    Filed: September 24, 1986
    Date of Patent: July 19, 1988
    Assignee: Brother Kogyo Kabushiki Kaisha
    Inventors: Toshio Nakai, Osamu Nagata, Kenji Sakakibara, Michitoshi Akao, Shigeyuki Hayashi, Toshio Takahashi, Hidetoshi Asada
  • Patent number: 4725157
    Abstract: In a printing device according to the present invention, a housing assembly comprises a pair of housings which are rockably supported, with their respective open end portions abutting against each other. A platen is disposed in an abutment region where the open end portions abut. A keyboard is provided on the one housing, while a printing element is disposed inside the other housing. When the printing device is in a nonusable position, the two housings extend along one plane, thus defining a flat, rectangular outline of the housing assembly. When the device is in a usable position, the housings are rocked relatively, thus defining a substantially L-shaped outline of the housing assembly. As the housings rock in this manner, the printing element is brought to a printing position, where the element faces the platen.
    Type: Grant
    Filed: July 28, 1986
    Date of Patent: February 16, 1988
    Assignee: Brother Kogyo Kabushiki Kaisha
    Inventors: Toshio Nakai, Osamu Nagata, Kenji Sakakibara, Michitoshi Akao, Shigeyuki Hayashi, Toshio Takahashi
  • Patent number: 4715339
    Abstract: A speed governor for engine includes a variation removing circuit responsive to an engine rotational speed signal indicative of the rotational speed of a diesel engine to remove a periodical variation component of the signal due to the pulsation of the output torque which the diesel engine generates, from the signal. The period of the variation to be removed by the variation removing circuit changes with the change of the rotational speed of the engine. The variation removing circuit may be formed of a sample-and-hold circuit or a variable characteristic filter of which the suppression frequency is variable.
    Type: Grant
    Filed: August 27, 1985
    Date of Patent: December 29, 1987
    Assignee: Kawasaki Jukogyo Kabushiki Kaisha
    Inventors: Ryuichi Sagawa, Osamu Nagata, Hajime Yamada
  • Patent number: 4688139
    Abstract: A device for driving an electromagnet from a direct current source includes first and second circuits which are coupled in parallel to each other, and in parallel to a direct current source. The first circuit has a first switch, a solenoid coil, and a second switch all in series with one another. The second circuit has a third switch, a storage coil, and a fourth switch all in series with one another. A third circuit is provided which has a diode which is arranged to provide a current path from a junction between the storage coil and the fourth switch, to a junction between the first switch and the solenoid coil. In operation, during solenoid standby, the choke coil is caused to store electromagnetic energy. When the solenoid coil is energized, the switches are operated such that the energy stored in the storage coil is caused to quickly charge into the solenoid coil. The solenoid coil is maintained energized by operating the first switch in a chopper mode.
    Type: Grant
    Filed: December 12, 1985
    Date of Patent: August 18, 1987
    Assignee: Technological Research Association of Highly Reliable Marine Propulsion Plant
    Inventors: Osamu Nagata, Takashi Kajima, Toshihara Ozaki
  • Patent number: 4688138
    Abstract: A method and apparatus for driving an electromagnetic device includes two coils which selectively attract and repel a moving body. In order to allow a quick switching of the moving body between being attracted by one coil and the other, the current through the coil which is not holding the moving body in its magnetic field can be made to be a level higher than the current to the coil which is holding the body in its magnetic field. By reducing the current to the coil that is holding the body, the body can be rapidly switched to be within the magnetic field of the other coil. In addition, the currents to the respective coils can be increased before this switching occurs. Structure can also be provided across the coils to quicken the time it takes for the magnetic field to dissipate.
    Type: Grant
    Filed: December 12, 1985
    Date of Patent: August 18, 1987
    Assignee: Technological Research Association of Highly Reliable Marine Propulsion Plant
    Inventors: Osamu Nagata, Takashi Kajima, Toshiharu Ozaki
  • Patent number: 4630588
    Abstract: A fuel injection timing control system of an internal combustion engine of a compression ignition type including a fuel injection pump driven by a cam connected to the engine, and a valve operative to return a part of the fuel delivered by the fuel injection pump to fuel source. The advance angle of the cam is set beforehand at a value bigger than those assumed in the range for normal operation, and the real fuel injection timing is modified by actuating the valve according to operating conditions of the engine.
    Type: Grant
    Filed: November 22, 1983
    Date of Patent: December 23, 1986
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventors: Ryuichi Sagawa, Osamu Nagata, Takashi Kajima
  • Patent number: 4532877
    Abstract: A maneuvering system of watercraft and the like provided with maneuvering equipment including a plurality of maneuvering devices, such as thrusters and main screws.
    Type: Grant
    Filed: May 10, 1983
    Date of Patent: August 6, 1985
    Assignee: Kawasaki Jukogyo Kabushiki Kaisha
    Inventors: Osamu Nagata, Masanari Inagaki, Hajime Yamada
  • Patent number: 4461142
    Abstract: A method of recovery of furnace gas energy for use to recover excess gas energy from a single or a plurality of furnace gas energy recovering plants each including an expansion turbine mounted in each exhaust system of each blast furnace. In one embodiment, excess gas beyond the power of the respective expansion turbine to recover is removed from each exhaust system of each blast furnace concerned through a branch line, and the removed excess gas is introduced into another expansion turbine through a pressure control valve, to thereby recover the energy possessed by the excess gas.
    Type: Grant
    Filed: April 9, 1982
    Date of Patent: July 24, 1984
    Assignee: Kawasaki Jukogyo Kabushiki Kaisha
    Inventors: Osamu Nagata, Satoru Matsukura, Hajime Yamada, Yozo Sasaki
  • Patent number: 4072006
    Abstract: A chemical reaction furnace system having a reaction furnace, a reaction gas exhaust flowpath, and a gas scrubbing device in the exhaust flowpath and having a capability of controlling the furnace top pressure is characterized by the provision of a turbine in the exhaust flowpath downstream from the scrubbing device and being operable to recover energy in the reaction gas, a gas bypass flowpath branched from said exhaust flowpath at a point thereof between the scrubbing device and the turbine and bypassing the turbine, and a bypass valve installed in the bypass flowpath, the turbine inlet gas pressure being controlled by a turbine governor.
    Type: Grant
    Filed: July 16, 1976
    Date of Patent: February 7, 1978
    Assignee: Kawasaki Jukogyo Kabushiki Kaisha
    Inventors: Masanobu Inubushi, Hajime Yamamoto, Osamu Nagata