Patents by Inventor Kazuhiro Matsumoto

Kazuhiro Matsumoto 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: 7139364
    Abstract: An X-ray-tomographic imaging apparatus for obtaining image data on a predetermined tomographic section of a subject with efficiency and effectiveness by using a plurality of X-ray projection images achieved by a plurality of X-rays that is made incident on the tomographic section from different directions is provided. The X-ray-tomographic imaging apparatus comprises a solid-image pickup unit that can convert each of the X-ray projection images to a signal and read the signal by a non-destructive reading method and a control unit making the solid-image pickup unit accumulate the signals of the X-ray projection images and read the signals by the non-destructive reading method during the signal accumulation.
    Type: Grant
    Filed: September 13, 2005
    Date of Patent: November 21, 2006
    Assignee: Canon Kabushiki Kaisha
    Inventor: Kazuhiro Matsumoto
  • Publication number: 20060210021
    Abstract: A radiographic imaging apparatus which has an imaging system having a radiation source to irradiate a subject with radiation and a radiation detector to detect the radiation irradiated from the radiation source, and a radiographic imaging table to arrange the subject within the imaging system includes an arm holder which supports upward arms of the subject arranged on the radiographic imaging table, and a holder supporting member which supports the arm holder.
    Type: Application
    Filed: February 28, 2006
    Publication date: September 21, 2006
    Inventors: Kazuhiro Matsumoto, Hidero Matsumoto, Osamu Tsujii
  • Patent number: 7095573
    Abstract: An image pickup apparatus comprises one holding component which holds two or more prisms and an image pickup element. As for the holding component, a prism holding portion and an image pickup element holding portion are formed in one component. At the prism holding portion, an opening is formed. At the image pickup element, the image pickup element holding portion is fixed. Each prism is fixed to the holding component from the both sides of the holding component by fitting a projected portion into a penetration hole, respectively.
    Type: Grant
    Filed: August 3, 2004
    Date of Patent: August 22, 2006
    Assignee: Olympus Corporation
    Inventors: Tetsuo Nagata, Tomoko Sato, Akihiro Sakurai, Tetsuya Ishii, Takeshi Takahashi, Kazuhiro Matsumoto
  • Publication number: 20060175206
    Abstract: A method of measuring a quantity of a substrate contained in sample liquid is provided. This method can reduce measurement errors caused by a biosensor. The biosensor includes at least a pair of electrodes on an insulating board and is inserted into a measuring device which includes a supporting section for supporting detachably the biosensor, plural connecting terminals to be coupled to the respective electrodes, and a driving power supply which applies a voltage to the respective electrodes via the connecting terminals. One of the electrodes of the biosensor is connected to the first and second connecting terminals of the measuring device only when the biosensor is inserted into the measuring device in a given direction, and has a structure such that the electrode becomes conductive between the first and second connecting terminals due to a voltage application by the driving power supply.
    Type: Application
    Filed: March 17, 2006
    Publication date: August 10, 2006
    Inventors: Shoji Miyazaki, Hiroyuki Tokunaga, Yoshinobu Tokuno, Kazuhiro Matsumoto, Yasuhiko Sawada
  • Publication number: 20060175207
    Abstract: A method of measuring a quantity of a substrate contained in sample liquid is provided. This method can reduce measurement errors caused by a biosensor. The biosensor includes at least a pair of electrodes on an insulating board and is inserted into a measuring device which includes a supporting section for supporting detachably the biosensor, plural connecting terminals to be coupled to the respective electrodes, and a driving power supply which applies a voltage to the respective electrodes via the connecting terminals. One of the electrodes of the biosensor is connected to the first and second connecting terminals of the measuring device only when the biosensor is inserted into the measuring device in a given direction, and has a structure such that the electrode becomes conductive between the first and second connecting terminals due to a voltage application by the driving power supply.
    Type: Application
    Filed: March 16, 2006
    Publication date: August 10, 2006
    Inventors: Shoji Miyazaki, Hiroyuki Tokunaga, Yoshinobu Tokuno, Kazuhiro Matsumoto, Yasuhiko Sawada
  • Patent number: 7076027
    Abstract: The object of the present invention is to enable photographing of a desired X-ray image in accordance with each of fluoroscopy, radiography of moving images in an area of interest and spot radiography by simplified operations, and to reduce an exposure dose to a subject. A correlation table is previously input before radiographing (S1), and is memorized (S2). A radiographer sets an irradiation field R to R1 (S3), and an X-ray aperture is opened by predetermined quantity (S4). An opening value is sent to a control part (S5), and X-rays irradiate a subject P on an irradiation condition of a tube voltage (V) and tube current (A) based on the correlation table (S6). The emitted X-rays pass through the subject, enter a planar X-ray-detecting element, then are read and converted to picture signals.
    Type: Grant
    Filed: September 29, 2004
    Date of Patent: July 11, 2006
    Assignee: Canon Kabushiki Kaisha
    Inventor: Kazuhiro Matsumoto
  • Patent number: 7044724
    Abstract: A screw compressor comprises a casing, and a male and a female rotor formed with axially twisted screw grooves and accommodated in the casing, the both rotors being rotated by timing gears fixed to the respective rotors while a desired minute gap is kept therebetween, and a method of manufacturing rotors therefor. In the screw compressor, the male and female rotors formed with axially twisted screw grooves in the casing comprise concave stripes having a minute depth and provided on the respective screw grooves to extend along directions of twist thereof, and leakage of a compressed air is less to give a high compression efficiency.
    Type: Grant
    Filed: July 11, 2003
    Date of Patent: May 16, 2006
    Assignee: Hitachi Industries Co., Ltd.
    Inventors: Kazuhiro Matsumoto, Tomu Kato, Hirotaka Kameya
  • Patent number: 7040845
    Abstract: A screw compressor comprises a casing, and a male and a female rotor formed with axially twisted screw grooves and accommodated in the casing, the both rotors being rotated by timing gears fixed to the respective rotors while a desired minute gap is kept therebetween, and a method of manufacturing rotors therefor. In the screw compressor, the male and female rotors formed with axially twisted screw grooves in the casing comprise concave stripes having a minute depth and provided on the respective screw grooves to extend along directions of twist thereof, and leakage of a compressed air is less to give a high compression efficiency.
    Type: Grant
    Filed: March 1, 2005
    Date of Patent: May 9, 2006
    Assignee: Hitachi Industries Co., Ltd.
    Inventors: Kazuhiro Matsumoto, Tomu Kato, Hirotaka Kameya
  • Publication number: 20060077346
    Abstract: A focusing unit (11) is constituted of a prism base (11a), deflection prisms (11b and 11c), and a slit chart (11e) having a slit opening (11d), and the deflection prisms (11b and 11c) are arranged so that deflecting directions may become reverse. The slit opening (11d) is made equally to spread across the deflection prisms (11b and 11c) approximately and is impermeable except the slit opening (11d), and light incident on the deflection prisms (11b and 11c) passes only this slit opening (11d). In addition, the light which is emitted by a focus index illumination light source illuminates the slit opening (11d) through the deflection prisms (11b and 11c). As to an image of the illuminated slit opening (11d), two slit images are formed on a fundus of eye by actions of the deflection prisms 11b and 11c. Focus adjustment is made by aligning these slit images (S1 and S2) in a straight line.
    Type: Application
    Filed: September 22, 2005
    Publication date: April 13, 2006
    Inventor: Kazuhiro Matsumoto
  • Publication number: 20060007046
    Abstract: This antenna unit is adapted to be connected to an electronic device for transmitting a received radio signal to the electronic device. The antenna unit comprises a noise canceller for canceling noise generated in the electronic device and transmitted to the antenna unit through a ground line. The noise canceller is a conductive stub piece one end of which is electrically connected to an electromagnetic shield of the antenna unit and the other end of which is a free end. The stub piece has a length of about ΒΌ of a wavelength of the radio signal.
    Type: Application
    Filed: October 25, 2004
    Publication date: January 12, 2006
    Inventors: Shinsuke Ueda, Hideki Oda, Kazuhiro Matsumoto, Masayuki Matsuo, Takashi Saeki, Hiroshi Chujo
  • Publication number: 20060008049
    Abstract: An X-ray-tomographic imaging apparatus for obtaining image data on a predetermined tomographic section of a subject with efficiency and effectiveness by using a plurality of X-ray projection images achieved by a plurality of X-rays that is made incident on the tomographic section from different directions is provided. The X-ray-tomographic imaging apparatus comprises a solid-image pickup unit that can convert each of the X-ray projection images to a signal and read the signal by a non-destructive reading method and a control unit making the solid-image pickup unit accumulate the signals of the X-ray projection images and read the signals by the non-destructive reading method during the signal accumulation.
    Type: Application
    Filed: September 13, 2005
    Publication date: January 12, 2006
    Applicant: Canon Kabushiki Kaisha
    Inventor: Kazuhiro Matsumoto
  • Publication number: 20050270485
    Abstract: To provide a technique preferable for ophthalmic image taking having an image taking optical system for imaging an image on an image sensing element at different imaging magnifications. The following are included: an image sensing element for converting the eye-to-be-examined fundus image into digital image data; an image taking optical system for imaging the eye-to-be-examined fundus image on the image sensing element at different image magnifications; fungus illumination means for illuminating fungus at a light intensity interlocking with the imaging magnifications; and region selection means for selecting a specific region including a fundus image from the image data in accordance with the imaging magnifications. Moreover, it is characterized to lower the light intensity of the fundus illumination means by interlocking with reduction of the imaging magnifications and contract the specific region by interlocking with reduction of the imaging magnifications.
    Type: Application
    Filed: June 2, 2005
    Publication date: December 8, 2005
    Inventor: Kazuhiro Matsumoto
  • Patent number: 6973160
    Abstract: An X-ray-tomographic imaging apparatus for obtaining image data on a predetermined tomographic section of a subject with efficiency and effectiveness by using a plurality of X-ray projection images achieved by a plurality of X-rays that is made incident on the tomographic section from different directions is provided. The X-ray-tomographic imaging apparatus comprises a solid-image pickup unit that can convert each of the X-ray projection images to a signal and read the signal by a non-destructive reading method and a control unit making the solid-image pickup unit accumulate the signals of the X-ray projection images and read the signals by the non-destructive reading method during the signal accumulation.
    Type: Grant
    Filed: November 13, 2003
    Date of Patent: December 6, 2005
    Assignee: Canon Kabushiki Kaisha
    Inventor: Kazuhiro Matsumoto
  • Patent number: 6963397
    Abstract: To provide a method of efficiently removing excitation light in a device for measuring fluorescence emitted from samples on a measuring surface of a substrate while illuminating the samples with excitation light. The method is a fluorometry characterized in that an excitation light illumination portion where the samples are illuminated with the excitation light and a light detecting portion where measurements are made of the fluorescence are placed in such a manner as to make it possible to prevent the excitation light from approaching the light detecting portion, and measurements of the fluorescence emitted from the samples on the measuring surface of the substrate are made in such a manner as to relatively move the samples from the excitation light illumination portion to the light detecting portion after illuminating the same with the excitation light.
    Type: Grant
    Filed: January 19, 2001
    Date of Patent: November 8, 2005
    Assignee: Canon Kabushiki Kaisha
    Inventors: Tomohiro Suzuki, Tadashi Okamoto, Kazuhiro Matsumoto, Nobuko Yamamoto
  • Patent number: 6925144
    Abstract: An X-ray digital tomographic image taking apparatus which divides the course from the start to end of tomographic image taking into a plurality of sections differing in quality of irradiated X-rays and creates a plurality of tomographic images from the image data differing in quality of X-rays. It also calculates a subtraction image from the plurality of tomographic images.
    Type: Grant
    Filed: November 17, 2003
    Date of Patent: August 2, 2005
    Assignee: Canon Kabushiki Kaisha
    Inventor: Kazuhiro Matsumoto
  • Publication number: 20050163868
    Abstract: A Kampo medicinal extract-containing tablet composition contains a Kampo medicinal extract powder, cellulose glycolate and sodium hydrogen carbonate. It preferably further contains silicic anhydride. A process to manufacture a Kampo medicinal extract-containing tablet composition by the step of adding silicic anhydride and water to a Kampo medicinal extract powder, stirring and granulating the mixture, and the step of mixing the granulated substance with cellulose glycolate and sodium hydrogen carbonate. The Kampo medicinal extract-containing tablet composition can be satisfactorily disintegrated and dissolved and a process for manufacturing the same, by formulating specific compounds to a Kampo medicinal extract powder.
    Type: Application
    Filed: July 10, 2003
    Publication date: July 28, 2005
    Inventors: Kazuhiro Matsumoto, Hideyuki Maruyama, Yoshihiko Nagano, Masayuki Ishimaru
  • Publication number: 20050147519
    Abstract: A screw compressor comprises a casing, and a male and a female rotor formed with axially twisted screw grooves and accommodated in the casing, the both rotors being rotated by timing gears fixed to the respective rotors while a desired minute gap is kept therebetween, and a method of manufacturing rotors therefor. In the screw compressor, the male and female rotors formed with axially twisted screw grooves in the casing comprise concave stripes having a minute depth and provided on the respective screw grooves to extend along directions of twist thereof, and leakage of a compressed air is less to give a high compression efficiency.
    Type: Application
    Filed: March 1, 2005
    Publication date: July 7, 2005
    Inventors: Kazuhiro Matsumoto, Tomu Kato, Hirotaka Kameya
  • Publication number: 20050146801
    Abstract: An image pickup apparatus comprises one holding component which holds two or more prisms and an image pickup element. As for the holding component, a prism holding portion and an image pickup element holding portion are formed in one component. At the prism holding portion, an opening is formed. At the image pickup element, the image pickup element holding portion is fixed. Each prism is fixed to the holding component from the both sides of the holding component by fitting a projected portion into a penetration hole, respectively.
    Type: Application
    Filed: August 3, 2004
    Publication date: July 7, 2005
    Inventors: Tetsuo Nagata, Tomoko Sato, Akihiro Sakurai, Tetsuya Ishii, Takeshi Takahashi, Kazuhiro Matsumoto
  • Publication number: 20050141233
    Abstract: A vehicle light includes a light source, a main-reflector, and a sub-reflector. The sub-reflector is arranged around the light source. The main-reflector is arranged around the light source and the sub-reflector. The main-reflector includes a reflection surface that reflects light from the light source in a predetermined direction, avoiding the sub-reflector.
    Type: Application
    Filed: December 1, 2004
    Publication date: June 30, 2005
    Inventors: Kazuhiro Matsumoto, Masafumi Kobayashi, Kazunori Iwasaki
  • Publication number: 20050128765
    Abstract: A vehicle headlight includes a first lamp unit and a second lamp unit. The first lamp unit includes a light source and a reflector. The light source includes a first filament, a second filament, and a shade. The reflector includes a first reflection surface, a second reflection surface, and a third reflection surface. The third reflection surface reflects light from the first filament to obtain a first condensing light-distribution-pattern, and reflects light from the second filament to obtain a second condensing light-distribution-pattern.
    Type: Application
    Filed: December 1, 2004
    Publication date: June 16, 2005
    Inventor: Kazuhiro Matsumoto