Patents by Inventor Kazuyoshi Takahashi

Kazuyoshi Takahashi 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: 5481382
    Abstract: A method is provided for transmitting and receiving image data having plural pixel data. The method comprises the step of producing image control data for controlling the image data to be transmitted. The plural pixel data is represented by n color components, and pixel data represented by n+m color components is produced for sequential transmission on the basis of the pixel data represented by the n color components. The image control data are transmitted for a period of time when the pixel data represented by the n color components are not provided in the period of time when pixel represented by n+m color components are transmitted. An image process is executed for either the pixel data represented by the n color components or the pixel data represented by the n+m color components on the basis of the image control data.
    Type: Grant
    Filed: August 4, 1994
    Date of Patent: January 2, 1996
    Assignee: Canon Kabushiki Kaisha
    Inventors: Kazuyoshi Takahashi, Yasuhiro Yamada
  • Patent number: 5475404
    Abstract: An ink jet recording apparatus comprises a timer for measuring an elapse of time from a predetermined measurement start timing, a backup power source for supplying power to the timer when a main power source is turned off, and a controller for changing the content and/or the frequency of a recover operation for recovering and preventing a discharge error in a discharge port for discharging ink on the basis of the elapsed time.
    Type: Grant
    Filed: September 12, 1994
    Date of Patent: December 12, 1995
    Assignee: Canon Kabushiki Kaisha
    Inventors: Kazuyoshi Takahashi, Yasuhiro Numata, Koji Terasawa, Hideo Fukazawa, Hitoshi Miyazaki, Takao Aichi
  • Patent number: 5461546
    Abstract: A function expanding apparatus for a compact electronic device includes a casing having a supporting portion and a supporting plate attached to the casing to be movable in a predetermined direction. A pair of retaining portions are formed on the supporting plate. The rear portion of the electronic device is mounted on the supporting portion and is positioned in its width direction by a pair of positioning members provided at the supporting portion. The front end portion of the electronic device is mounted on the supporting plate and the retaining portions engage the front edge of the electronic device so as to restrain the movement of the electronic device in the depth direction thereof. The position of the retaining portion is adjusted by moving the supporting plate, in accordance with the depth of the mounted electronic device.
    Type: Grant
    Filed: January 19, 1993
    Date of Patent: October 24, 1995
    Assignees: Kabushiki Kaisha Toshiba, Kel Corporation
    Inventors: Takaichi Kobayashi, Kazuya Shibasaki, Takashi Hosoi, Masami Honda, Kazuyoshi Takahashi
  • Patent number: 5292267
    Abstract: A function expanding apparatus for electronic devices having a mechanism for supporting a connector body. Two elastic members hold a connector body which is freely slidable between the two elastic members. The connector body is movable in multiple directions so as to connect to the electronic apparatus.
    Type: Grant
    Filed: March 31, 1993
    Date of Patent: March 8, 1994
    Assignees: Kabushiki Kaisha Toshiba, KEL Corporation
    Inventors: Takaichi Kobayashi, Kazuya Shibasaki, Takashi Hosoi, Masami Honda, Kazuyoshi Takahashi
  • Patent number: 5182698
    Abstract: A function expanding apparatus for a compact electronic device includes a casing having a supporting portion and a supporting plate attached to the casing to be movable in a predetermined direction. A pair of retaining portions are formed on the supporting plate. The rear portion of the electronic device is mounted on the supporting portion and is positioned in its width direction by a pair of positioning members provided at the supporting portion. The front end portion of the electronic device is mounted on the supporting palte and the retaining portions engage the front edge of the electronic device so as restrain the movement of the electronic device in the depth direction thereof. The position of the retaining portion is adjusted by moving the supporting plate, in accordance with the depth of the mounted electronic device.
    Type: Grant
    Filed: December 14, 1990
    Date of Patent: January 26, 1993
    Assignees: Kabushiki Kaisha Toshiba, Kel Corporation
    Inventors: Takaichi Kobayashi, Kazuka Shibasaki, Takashi Hosoi, Masami Honda, Kazuyoshi Takahashi
  • Patent number: 4945255
    Abstract: A power source device including a lower voltage inverter transformer having plural secondary windings and a higher voltage inverter transformer having a primary winding connected directly to one of the secondary windings of the lower voltage inverter transformer without any rectifying circuit or inverter circuit interposed therebetween. The lower voltage and higher voltage transformers are contained in the same casing, the internal space of which is filled with an electrically insulative material to provide a unit device.
    Type: Grant
    Filed: March 28, 1988
    Date of Patent: July 31, 1990
    Assignee: Canon Kabushiki Kaisha
    Inventors: Koji Suzuki, George Nagahira, Kazuyoshi Takahashi, Kunio Yoshihara, Toshiro Matsui, Tadashi Ishikawa
  • Patent number: 4761728
    Abstract: A high voltage generating device is provided with a high voltage transformer and a rectifying circuit which is connected to a terminal of the output coil of the high voltage transformer different from the high voltage output terminal of the output coil and which is incorporated in the unit of the high voltage transformer.
    Type: Grant
    Filed: January 5, 1987
    Date of Patent: August 2, 1988
    Assignee: Canon Kabushiki Kaisha
    Inventor: Kazuyoshi Takahashi
  • Patent number: 4731720
    Abstract: A high-voltage power source apparatus has a step-up transformer for producing a high-voltage output, a rectifier/smoothing circuit for rectifying and smoothing the high-voltage output from the transformer, and a control section including a constant current or voltage control circuit for changing the output magnitude at a predetermined frequency and for obtaining a constant load current or voltage.
    Type: Grant
    Filed: October 28, 1985
    Date of Patent: March 15, 1988
    Assignee: Canon Kabushiki Kaisha
    Inventor: Kazuyoshi Takahashi
  • Patent number: 4709319
    Abstract: There is disclosed a high-voltage power supply device capable of high precise control with a simplified circuitry and with a reduced energy loss in which a high-voltage transformer is controlled by switching means which is driven by a power source including a negative power supply and operated in response to pulse signals.
    Type: Grant
    Filed: September 15, 1986
    Date of Patent: November 24, 1987
    Assignee: Canon Kabushiki Kaisha
    Inventors: Kazuyoshi Takahashi, Koji Suzuki, Joji Nagahira, Kunio Yoshihara, Toshiro Matsui, Tadashi Ishikawa
  • Patent number: 4607320
    Abstract: A power supply device has improved power efficiency and stability for use in a copier or the like. The primary power supply to the device being switched with a constant turned-off period to achieve variable power supply control.
    Type: Grant
    Filed: January 16, 1984
    Date of Patent: August 19, 1986
    Assignee: Canon Kabushiki Kaisha
    Inventors: Toshiro Matui, Koji Suzuki, Jyoji Nagahira, Kunio Yoshihara, Kazuyoshi Takahashi, Tadashi Ishikawa
  • Patent number: 4600294
    Abstract: There is disclosed an electrophotographic image forming apparatus in which toner loss by deposition to non-image area is prevented by detecting the surface status of photosensitive member and applying thus detected state to the image developing device.
    Type: Grant
    Filed: March 23, 1984
    Date of Patent: July 15, 1986
    Assignee: Canon Kabushiki Kaisha
    Inventors: Koji Suzuki, Jyoji Nagahira, Kazuyoshi Takahashi, Kunio Yoshihara, Toshiro Matsui, Tadashi Ishikawa
  • Patent number: 4344280
    Abstract: A combustor of a gas turbine including fuel distributing and supplying means including a plurality of sets of fuel nozzles arranged circularly on the head of the combustor and each fuel nozzle being provided with a combustion primary air swirler, and a plurality of fuel supply systems each connected to one fuel nozzle or a plurality of fuel nozzles. One set of fuel nozzles is located inside another set of fuel nozzles and projects further inwardly into the interior of the combustor. The number of the fuel supply systems handling a supply of fuel can be increased or reduced depending on the volume of fuel.
    Type: Grant
    Filed: January 24, 1980
    Date of Patent: August 17, 1982
    Assignee: Hitachi, Ltd.
    Inventors: Yoshimitsu Minakawa, Yoji Ishibashi, Isao Sato, Yoshihiro Uchiyama, Kazuyoshi Takahashi
  • Patent number: 4272497
    Abstract: A method for treating a nitrogen oxide- and sulphur oxide-containing waste gas, in which gaseous ammonia is mixed with said waste gas, the resulting mixed gas is passed in the cross current direction through a first reactor provided with a moving bed of carbonaceous catalyst particles adapted to move downwards, the gas having passed through the upper part of said reaction is discharged outside of the reactor without undergoing treatment, the gas having passed through the lower part of the reactor is mixed with a fresh gaseous ammonia, and this mixed gas is passed in the cross current direction through a second reactor provided with a moving bed of carbonaceous catalyst particles adapted to move downwards and then discharged outside of the reactor.
    Type: Grant
    Filed: July 28, 1980
    Date of Patent: June 9, 1981
    Assignees: Sumitomo Heavy Industries, Ltd., Electric Power Development Co., Ltd.
    Inventors: Kazuyoshi Takahashi, Hiromi Tanaka
  • Patent number: 3977037
    Abstract: A vacuum cleaner of a baseboard type which is concealed in a handsome article of furniture so that the vacuum cleaner concurrently serves as a piece of furniture. To this end, the vacuum cleaner herein disclosed comprises a housing structure of a substantially hollow cubic body having a first chamber adapted to accommodate therein a length of a flexible vacuum hose, a second chamber in which a source of vacuum is housed and a third chamber adapted to removably accommodate a dust collector. A lid is provided at either or both of the top and side of the housing structure and may provide for the convenient storage of some appurtenances such as floor brush, extensible wand, nozzle, etc. An automatic drawing mechanism for drawing a length of the flexible vacuum hose, that has been taken out of the hose chamber for use, back into the hose chamber is also provided.
    Type: Grant
    Filed: September 19, 1974
    Date of Patent: August 31, 1976
    Assignee: Sanyo Electric Co., Ltd.
    Inventors: Yuji Miyake, Hideo Kashihara, Kazuyoshi Takahashi, Takamitu Yamamoto, Takuya Morishita