Patents by Inventor Yoshihiro Takada

Yoshihiro Takada 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: 6301017
    Abstract: This invention relates to an image processing method and apparatus and particularly solves problems of image degradation in multi generation copying (copying, using a previous copy output as an original). A generation copy mode is provided in addition to the normal copy mode.
    Type: Grant
    Filed: October 22, 1996
    Date of Patent: October 9, 2001
    Assignee: Canon Kabushiki Kaisha
    Inventors: Akio Suzuki, Yoshihiro Takada
  • Publication number: 20010022244
    Abstract: The present invention aims to improve convenience of a wheelchair by enabling an outside fitting type of auxiliary power device to be automatically and securely mounted on and removed from the habituated wheelchair.
    Type: Application
    Filed: March 13, 2001
    Publication date: September 20, 2001
    Applicant: Fuji Jukogyo Kabushiki Kaisha
    Inventor: Yoshihiro Takada
  • Patent number: 6188850
    Abstract: A neutralized printing paper which is made of a base paper and a cationic compound applied on a printing surface of the base paper. The paper has a surface pH value ranging from 6.0 to 7.5.
    Type: Grant
    Filed: December 31, 1997
    Date of Patent: February 13, 2001
    Assignee: Canon Kabushiki Kaisha
    Inventors: Mamoru Sakaki, Akio Suzuki, Masayoshi Takahashi, Yoshinobu Shimomura, Tatsuo Takeuchi, Yoshihiro Takada, Masato Katayama
  • Patent number: 6179402
    Abstract: An image recording apparatus for recording an image in accordance with input image data supplied thereto using a recording head having a plurality of recording elements arranged thereon. The apparatus includes a sensor for detecting and determining non-uniformity of the densities of the records provided by the respective recording elements, at predetermined timing in image recording operations, and adjusting means for adjusting driving signals applied to the respective recording heads in response to an output of sensor.
    Type: Grant
    Filed: December 7, 1999
    Date of Patent: January 30, 2001
    Assignee: Canon Kabushiki Kaisha
    Inventors: Akio Suzuki, Hisashi Fukushima, Yoshihiro Takada
  • Patent number: 6156090
    Abstract: An air cleaner includes a housing having an upper wall and side walls, an air filter mounted with respect to the housing, a fan including a vane-wheel having a plurality of vanes, a supporting plate extending substantially between at least two side walls for supporting the fan. An air flow directional member directs an air flow output from the fan. The vane is formed to have a winglike cross-section, and the vane-wheel includes not more than four vanes. The vane-wheel has a base plate and a shroud. Each of the base plate and the shroud is formed to have a reinforcement portion on its circumference. A U-shaped balance weight is attached to a flattened portion formed on the curled portion. The air cleaner of the present invention can reduce noise and vibration and improve efficiency of the fan.
    Type: Grant
    Filed: October 1, 1998
    Date of Patent: December 5, 2000
    Assignees: Hitachi, Ltd., Hitachi Techno Engineering Co., Ltd.
    Inventors: Tominori Ishikawa, Yuji Toyama, Makoto Yokoyama, Yoshihiro Takada, Keiichi Honma, Osamu Kawasaki, Masayosi Inoue, Kazunari Sugai, Jun Tazawa
  • Patent number: 6151040
    Abstract: An image recording apparatus for moving, relatively to a cloth recording medium, a recording head for discharging ink so as to record an image. The image recording apparatus is arranged such that the operation conditions of the recording head can be changed at the time of the recording operation in accordance with the thickness of the cloth, or the diameter of the fiber or the pitch of weaving the fiber of the cloth, so that the quantity of ink to be supplied to the cloth to record an image is controlled so that a high quality recorded image can be obtained regardless of the type of the cloth.
    Type: Grant
    Filed: September 24, 1997
    Date of Patent: November 21, 2000
    Assignee: Canon Kabushiki Kaisha
    Inventors: Yoshihiro Takada, Akio Suzuki, Yasushi Miura, Yasuyuki Takanaka, Nobuhiko Ogata
  • Patent number: 6116728
    Abstract: An ink jet textile printing apparatus for performing printing by reading an original image created by a designer, converting the original image into original data represented by an electric signal, retrieving the original data for processing to be output as image data, and recording data on cloth based on the image data. The ink jet textile printing apparatus has a first ink jet recording head provided upstream of a recording position, and a second ink jet recording head provided downstream thereof, and is provided with a drying unit located between the recording heads, whereby high-quality recorded images with less bleeding can be obtained by recording on a recording area again with the second ink jet recording head after drying the recording area on the cloth recorded by the first ink jet recording head with the drying unit.
    Type: Grant
    Filed: February 25, 1993
    Date of Patent: September 12, 2000
    Assignee: Canon Kabushiki Kaisha
    Inventors: Hiroyuki Miyake, Tomohiro Aoki, Kazuyoshi Takahashi, Akio Suzuki, Mitsuru Kurata, Tokihide Ebata, Yoshihiro Takada, Kunihiko Matsuzawa, Hideyuki Tanaami, Yutaka Udagawa, Masatoshi Ikkatai, Keiju Kuboki, Yasushi Miura, Masahiro Nishio, Yasuyuki Takanaka, Eiichi Takagi, Yoshio Komaki, Nobuhiko Ogata
  • Patent number: 6095111
    Abstract: A fuel injection internal combustion engine is provided with a sub-combustion chamber in communication with a main combustion chamber. A volumetric ratio of the sub-combustion chamber to the main combustion chamber is set within a range of 2:8 to 6:4. A mixture switching valve is provided for injecting the mixture of the fuel and compressed air into the sub-combustion chamber, and a spark plug is arranged in the sub-combustion chamber. The sub-combustion chamber is formed of a material having a thermal conductivity which is lower than that of the material forming the main combustion chamber.
    Type: Grant
    Filed: May 20, 1998
    Date of Patent: August 1, 2000
    Assignee: Honda Giken Kogyo Kabushiki Kaisha
    Inventors: Minoru Ueda, Yuji Tsushima, Hiroshi Yamashita, Yoshihiro Takada, Yutaka Nishikawa
  • Patent number: 6055954
    Abstract: A spark ignition internal combustion engine includes a sub-combustion chamber in which gas mixture with an air-fuel ratio adapted for an operating state of the engine over a wide operating range of the engine is supplied to a combustion chamber. The amount of hydrogen carbide discharged is less and a high efficiency can be attained. The sub-combustion chamber of the internal combustion engine communicates with the main combustion chamber. Gas mixture injecting apparatus intermittently injects gas mixture into the sub-combustion chamber. Ignition devices are arranged in the sub-combustion chamber. The engine is constructed such that the sub-combustion chamber is eccentric in a sideward direction from an extending line of injecting direction of the gas mixture injecting apparatus and communicated with the main combustion chamber.
    Type: Grant
    Filed: May 20, 1998
    Date of Patent: May 2, 2000
    Assignee: Honda Giken Kogyo Kabushiki Kaisha
    Inventors: Yoshihiro Takada, Yuji Tsushima, Shunji Akamatsu, Yutaka Nishikawa
  • Patent number: 6045210
    Abstract: An image recording apparatus for recording an image in accordance with input image data supplied thereto using a recording head having a plurality of recording elements arranged thereon. The apparatus includes a sensor for detecting and determining variation the densities of the recordings produced by the respective recording elements, at predetermined timing in image recording operations, and adjusting means for adjusting driving signals applied to the respective recording heads in response to an output of sensor.
    Type: Grant
    Filed: June 19, 1997
    Date of Patent: April 4, 2000
    Assignee: Canon Kabushiki Kaisha
    Inventors: Akio Suzuki, Hisashi Fukushima, Yoshihiro Takada
  • Patent number: 6036300
    Abstract: An image recording apparatus records an image on a recording medium by causing a recording head having an arrangement of a plurality of recording elements to conduct its main scanning for the recording medium interrelatedly in the direction opposite to the arrangement of the recording elements. The apparatus comprises a setting device to set the number of main scannings by the recording head; a main scanning device to perform recording by plural numbers of main scannings with respect to one pixel by causing the recording head to conduct its main scannings for the same recording area of the recording medium in accordance with the number set by the setting device; and a sub-scanning device to cause the recording head and the recording medium to be sub-scanned interrelatedly per main scanning in an amount smaller than the width of the arrangement of the recording elements of the recording head.
    Type: Grant
    Filed: February 23, 1993
    Date of Patent: March 14, 2000
    Assignee: Canon Kabushiki Kaisha
    Inventors: Akio Suzuki, Kiyoharu Tanaka, Yoshihiro Takada, Yasushi Miura, Nobuhiko Ogata
  • Patent number: 6019808
    Abstract: An air cleaner of the present invention includes a housing having an upper wall and side walls, a fan, a supporting plate extending between the two side walls for supporting the fan, a first air flow directional member extending between the supporting plate and the upper wall, and a second air flow directional member provided at a horizontal periphery of the housing. The first air flow directional member not only provides reinforcement to the supporting plate and the upper wall, but also directs an air flow output from the fan. The second air flow directional member has a horizontal plate and vertical plates for directing air flow at the horizontal periphery of the housing. The first air flow directional member and the second air flow directional member are adapted to equalize a velocity of an air flow distributed across an air flow output area of the fan unit.
    Type: Grant
    Filed: June 16, 1998
    Date of Patent: February 1, 2000
    Assignee: Hitachi, Ltd.
    Inventors: Tominori Ishikawa, Yuji Toyama, Masayuki Terano, Yoshihiro Takada, Keiichi Honma
  • Patent number: 6000776
    Abstract: An image forming apparatus includes reading means for reading the density of a test pattern corresponding to each of plural recording elements of a recording head, the recording elements being arranged in an array, and the test pattern being recorded by the recording elements. An eliminating means eliminates error information, recorded from an area outside a test pattern are, from density information obtained by the reading means when the density of a test pattern end portion corresponding to an end portion of the array of plural of recording elements is determined. A means is provided for uniforming the image densities in correspondence with the plurality of recording elements based on density information from which the error information is eliminated by the eliminating means.
    Type: Grant
    Filed: January 28, 1998
    Date of Patent: December 14, 1999
    Assignee: Canon Kabushiki Kaisha
    Inventors: Akio Suzuki, Toshimitsu Danzuka, Haruhiko Moriguchi, Yoshihiro Takada, Yasushi Miura, Hisashi Fukushima, Masami Izumizaki, Nobuhiko Takekoshi, Nobuyuki Watanabe, Eiichi Takagi, Haruhiko Takahashi
  • Patent number: 5997123
    Abstract: An image recording apparatus for recording an image by using a plurality of recording elements which are driven an accordance with an image signal includes a first correction unit for correcting driving conditions of the recording element, and a second correction unit for correcting a level of the image signal, wherein a variation in the recording elements is corrected by a combination of the first and second correction units. A driving voltage or a width of drive pulse which is applied to each recording element is controlled as a driving condition, thereby making uniform an uneven image density.
    Type: Grant
    Filed: May 6, 1991
    Date of Patent: December 7, 1999
    Assignee: Canon Kabushiki Kaisha
    Inventors: Nobuhiko Takekoshi, Yoshihiro Takada, Toshimitsu Danzuka, Yasushi Miura, Haruhiko Moriguchi
  • Patent number: 5950592
    Abstract: A highly efficient spark ignition two-cycle internal combustion engine is provided which assures stable and excellent combustion over a wider operation region of the engine. The spark ignition two-cycle internal combustion engine includes a sub-combustion chamber, and a pressure accumulating chamber which is filled with compressed air. A switching valve is arranged for communicating the pressure accumulating chamber with the sub-combustion chamber. A fuel injecting device injects fuel into the pressure accumulating chamber. A control device controls the operations of the switching valve and the fuel injecting device.
    Type: Grant
    Filed: May 20, 1998
    Date of Patent: September 14, 1999
    Assignee: Honda Giken Kogyo Kabushiki Kaisha
    Inventors: Yoshihiro Takada, Yuji Tsushima, Yoshihide Namba, Minoru Ueda, Hiroshi Yamashita, Hiroshi Tanaka
  • Patent number: 5839397
    Abstract: First cooling air (50) enters an engine room (1) through a cooling air inlet port (7a) from the exterior of the engine room (1), and is throttled by a suction tube (8a) after passing heat exchangers such as an intercooler (6a), an oil cooler (6b) and a radiator (6c), followed by entering a centrifugal fan (4). The first cooling air (50) is then blown off toward an outer circumference of the centrifugal fan (4). Second cooling air enters the engine room (1) through cooling air inlet ports (7b, 7b) from the exterior of the engine room (1), and flows around an engine (5), various electric equipments such as an alternator (10), and an oil pan (14) while cooling them. The second cooling air is then throttled by a suction tube (8b) before entering the centrifugal fan (4), and blown off toward the outer circumference of the centrifugal fan (4). Two streams of the first and second cooling air (50, 51) are discharged to the exterior through an exhaust port (9).
    Type: Grant
    Filed: June 17, 1997
    Date of Patent: November 24, 1998
    Assignee: Hitachi Construction Machinery Co. Ltd.
    Inventors: Shigehisa Funabashi, Yoshihiro Takada, Masatoshi Watanabe, Shinichi Shimode, Yoshio Tanito, Sotaro Tanaka, Zenji Kaneko, Ichiro Hirami, Toshio Takishita, Shinichi Mihara
  • Patent number: 5800390
    Abstract: Equipment for intracerebral administration of preparations is composed of a preparation-administering device (1) holding a preparation (2), and a plunger (4) removably arranged in the preparation-administering device adapted to push the preparation held therein toward one end of the preparation-administering device. The intracerebral preparation-administration equipment is inserted into a preparation-introducing guide (5) previously implanted in the head of a patient to introduce the preparation into its guide hole (26). The preparation is then guided to a site of administration through a flexible guide tube (23) communicated with the guide hole of the preparation-introducing guide. The equipment for intracerebral administration of preparations may be composed of a tubular preparation-retaining member (30) having a preparation contained therein, and a holder (32) for holding the tubular preparation-retaining member along with a push rod (31) inserted thereinto as an integral part thereof.
    Type: Grant
    Filed: July 25, 1997
    Date of Patent: September 1, 1998
    Assignees: Sumitomo Pharmaceuticals Company, Limited, Koken Co., Ltd.
    Inventors: Toru Hayakawa, Toshiki Yoshimine, Hiromu Yamamoto, Akira Sato, Tsunemasa Irie, Keiji Fujioka, Yoshihiro Takada, Yoshio Sasaki
  • Patent number: 5790143
    Abstract: An image recording apparatus for recording high-quality images on various recording materials by setting optimum recording conditions in accordance with the types and applications of the recording materials has an operating unit for selecting a reflection and transmission mode for an OHP film. When the reflection mode is selected, a recording head is scanned once for recording an image for each recording width of the OHP film. When the transmission mode is selected, the recording head is scanned twice for recording an image for each recording width of the OHP film.
    Type: Grant
    Filed: May 25, 1995
    Date of Patent: August 4, 1998
    Assignee: Canon Kabushiki Kaisha
    Inventors: Yoshihiro Takada, Akio Suzuki
  • Patent number: 5766864
    Abstract: A method of measuring the activity of interferon-.alpha., .beta. or .omega., which comprises bringing a sample containing interferon into contact with a cell and determining an induced protein is provided.
    Type: Grant
    Filed: November 1, 1995
    Date of Patent: June 16, 1998
    Assignee: Sumitomo Pharmaceuticals Company, Ltd.
    Inventors: Kazuko Uno, Tsunataro Kishida, Keiji Fujioka, Yoshihiro Takada, Takayuki Sato
  • Patent number: 5736996
    Abstract: An image recording apparatus includes a recording head in which a plurality of recording elements are arranged so as to form an image on a recording medium, a device for causing the recording head to print a predetermined test pattern, an image density reading device for reading the density of the test pattern formed by the recording head, an uneven image density correction device for correcting conditions for driving the plurality of recording elements in accordance with the result of reading, so as to make even the density of the image, a recording stabilizing device for stabilizing a recording operation performed by the recording head, and a control device for operating the recording stabilizing device before the test pattern is printed and operating the test pattern printing device after the recording head has been stabilized by the recording stabilizing device.
    Type: Grant
    Filed: May 1, 1995
    Date of Patent: April 7, 1998
    Assignee: Canon Kabushiki Kaisha
    Inventors: Yoshihiro Takada, Akio Suzuki, Toshimitsu Danzuka, Haruhiko Moriguchi, Hisashi Fukushima, Masami Izumizaki, Yasushi Miura