Patents by Inventor Tohru Takahashi

Tohru 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: 5531719
    Abstract: A vascular catheter usable for intravascular surgical operation, highly localized injection of medicine such as anticancer drugs, and angiography.The main portion of the catheter body is made up of an inner tube formed synthetic-resin and an outer tube formed of a synthetic resin covering the outside surface of the inner tube. The tip of the catheter body is made up of the portion of the outer tube extending from the distal end of the inner tube. The inner tube has one or more grooves, slots or slits formed in the distal end portion.
    Type: Grant
    Filed: June 28, 1994
    Date of Patent: July 2, 1996
    Assignee: Terumo Kabushiki Kaisha
    Inventor: Tohru Takahashi
  • Patent number: 5506467
    Abstract: A color cathode-ray tube comprises an envelope having rectangular flat face and rear plates opposing each other. A phosphor screen is formed on an inner surface of the face plate. Mask support members are mounted on an inner surface of the rear plate. A shadow mask is arranged in the envelope and supported by the mask support members to face the phosphor screen at a predetermined distance. A plurality of positioning posts are fixed on the inner surface of the rear plate and extend toward the face plate. A plurality of positioning pins extend from the inner surface of the face plate and engage the positioning posts so as to position the face plate at a predetermined position with respect to the rear plate. The shadow mask has setting openings through which the positioning posts extend so as to position the shadow mask at a predetermined position with respect to the rear plate.
    Type: Grant
    Filed: July 12, 1994
    Date of Patent: April 9, 1996
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Takashi Nishimura, Kazuyuki Seino, Tohru Takahashi, Yuuji Haraguchi, Eiji Kamohara
  • Patent number: 5506470
    Abstract: A color cathode ray tube includes a face plate having a curved inner surface and a substantially rectangular effective area. A phosphor screen is formed on the inner surface of the face plate, and a shadow mask is arranged to oppose the phosphor screen.
    Type: Grant
    Filed: June 5, 1995
    Date of Patent: April 9, 1996
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Masatsugu Inoue, Tohru Takahashi
  • Patent number: 5493662
    Abstract: In an apparatus for use in a computer system for accessing to a main memory when a desired datum is not memorized in a cache memory, a supplementary memory is included in the apparatus for memorizing a supplementary datum representative of a predetermined address in the main memory. When the desired datum is not memorized in a particular address of the cache memory, a judging circuit produces a particular signal. By a combination of the supplementary datum and the particular signal, an access control part accesses to the main memory to read a specific datum of the main data as the desired datum from the main memory. The specific datum is stored in the particular address from the access control part. The described system can be used for both tagged and untagged data, allowing for compatibility between data systems using different tagging schemes.
    Type: Grant
    Filed: February 27, 1995
    Date of Patent: February 20, 1996
    Assignee: NEC Corporation
    Inventors: Takashi Shinozaki, Tohru Takahashi
  • Patent number: 5274301
    Abstract: In a panel for a color cathode ray tube, a faceplate is so formed as to have a substantially rectangular front view and a skirt has four corner sections. Panel pin mount bases are provided on the four corner sections of the skirt, respectively and four panel pins are fixed to the mount base, respectively.
    Type: Grant
    Filed: September 24, 1992
    Date of Patent: December 28, 1993
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Tohru Takahashi, Michio Nakamura, Takeshi Fujiwara, Hidenari Toge, Hidetoshi Yamazaki
  • Patent number: 5194359
    Abstract: This specification discloses a method of toner transfer development in which a low frequency alternating electrical bias is applied to the space between a latent image bearing member and a developer carrying member to develop the latent image on the latent image bearing member, and an apparatus for carrying out the same method. This bias has a first process in which reciprocal movement of developer particles is effected also between the non-image area of the latent image bearing member and the developer carrying member, and a second process in which the intensity of the bias is adjusted so that one-sided movement of developer particles from the developer carrying member to the image area and one-sided movement of developer particles from the non-image area to the developer carrying member may take place.
    Type: Grant
    Filed: August 6, 1991
    Date of Patent: March 16, 1993
    Assignee: Canon Kabushiki Kaisha
    Inventors: Junichiro Kanbe, Tsutomu Toyono, Nagao Hosono, Tohru Takahashi
  • Patent number: 5096798
    Abstract: This specification discloses a method of toner transfer development in which a low frequency alternating electrical bias is applied to the space between a latent image bearing member and a developer carrying member to develop the latent image on the latent image bearing member, and an apparatus for carrying out the same method. This bias has a first process in which reciprocal movement of developer particles is effected also between the non-image area of the latent image bearing member and the developer carrying member, and a second process in which the intensity of the bias is adjusted so that one-sided movement of developer particles from the developer carrying member to the image area and one-sided movement of developer particles from the non-image area to the developer carrying member may take place.
    Type: Grant
    Filed: March 18, 1991
    Date of Patent: March 17, 1992
    Assignee: Canon Kabushiki Kaisha
    Inventors: Junichiro Kanbe, Tsutomu Toyono, Nagao Hosono, Tohru Takahashi
  • Patent number: 5075855
    Abstract: A suspension control system for automotive vehicles automatically adjusts the damping strength of variable shock absorbers or other dampers in accordance with road surface conditions as recognized by frequency analysis of a vehicle height or vibration sensor signal. The sensor signal reflects vertical displacement of the vehicle body from the road surface and includes high-frequency components due solely to displacement of the wheels or unsprung mass relative to the road surface and low-frequency components due to displacement of the vehicle body or sprung mass. The sensor signal is filtered into these separate frequency bands, the amplitude of each of which is compared to a corresponding reference level.
    Type: Grant
    Filed: September 25, 1990
    Date of Patent: December 24, 1991
    Assignee: Nissan Motor Company, Limited
    Inventors: Fukashi Sugasawa, Ken Ito, Tohru Takahashi, Sadahiro Takahashi, Takeshi Fujishiro
  • Patent number: 5044310
    Abstract: This specification discloses a method of toner transfer development in which a low frequency alternating electrical bias is applied to the space between a latent image bearing member and a developer carrying member to develop the latent image on the latent image bearing member, and an apparatus for carrying out the same method. This bias has a first process in which reciprocal movement of developer particles is effected also between the non-image area of the latent image bearing member and the developer carrying member, and a second process in which the intensity of the bias is adjusted so that one-sided movement of developer particles from the developer carrying member to the iamge area and one-sided movement of developer particles from the non-image area to the developer carrying member may take place.
    Type: Grant
    Filed: December 22, 1989
    Date of Patent: September 3, 1991
    Assignee: Canon Kabushiki Kaisha
    Inventors: Junichiro Kanbe, Tsutomu Toyono, Nagao Hosono, Tohru Takahashi
  • Patent number: 5034890
    Abstract: A suspension control system for automotive vehicles automatically adjusts the damping strength of variable shock absorbers or other dampers in accordance with road surface conditions as recognized by frequency analysis of a vehicle height or vibration sensor signal. The sensor signal reflects vertical displacement of the vehicle body from the road surface and includes high-frequency components due solely to displacement of the wheels or unsprung mass relative to the road surface and low-frequency components due to displacement of the vehicle body or sprung mass. The sensor signal is filtered into these separate frequency bands, the amplitude of each of which is compared to a corresponding reference level.
    Type: Grant
    Filed: January 18, 1989
    Date of Patent: July 23, 1991
    Assignee: Nissan Motor Company, Ltd.
    Inventors: Fukashi Sugasawa, Ken Ito, Tohru Takahashi, Sadahiro Takahashi, Takeshi Fujishiro
  • Patent number: 5032485
    Abstract: This specification discloses a method of toner transfer development in which a low frequency alternating electrical bias is applied to the space between a latent image bearing member and a developer carrying member to develop the latent image on the latent image bearing member, and an apparatus for carrying out the same method. This bias has a first process in which reciprocal movement of developer particles is effected also between the non-image area of the latent image bearing member and the developer carrying member, and a second process in which the intensity of the bias is adjusted so that one-sided movement of developer particles from the developer carrying member to the image ara and one-sided movement of developer particles from the non-image area to the developer carrying member may take place.
    Type: Grant
    Filed: June 27, 1990
    Date of Patent: July 16, 1991
    Assignee: Canon Kabushiki Kaisha
    Inventors: Junichiro Kanbe, Tsutomu Toyono, Nagao Hosono, Tohru Takahashi
  • Patent number: 4967359
    Abstract: A suspension control system for automotive vehicles automatically adjusts the damping strength of variable shock absorbers or other dampers in accordance with road surface conditions as recognized by frequency analysis of a vehicle height or vibration sensor signal. The sensor signal reflects vertical displacement of the vehicle body from the road surface and includes high-frequency components due solely to displacement of the wheels of unsprung mass relative to the road surface and low-frequency components due to displacement of the vehicle body or sprung mass. The sensor signal is filtered into these separate frequency bands, the amplitude of each of which is compared to a corresponding reference level.
    Type: Grant
    Filed: February 19, 1988
    Date of Patent: October 30, 1990
    Assignee: Nissan Motor Co., Ltd.
    Inventors: Fukashi Sugasawa, Ken Ito, Tohru Takahashi, Sadahiro Takakashi, Takashi Fujishiro
  • Patent number: 4958915
    Abstract: A liquid crystal apparatus, comprising a liquid crystal panel comprising a plurality of scanning lines, and a plurality of picture elements disposed along each of the scanning lines and comprising a ferroelectric liquid crystal; a backlight disposed behind the liquid crystal panel for illuminating the liquid crystal panel, the backlight changing the light quantity emitted therefrom with the elapse of time. The liquid crystal apparatus is so driven that the low level of the light quantity of the backlight is synchronized with a time when a writing signal is applied to picture elements on at least one scanning line.
    Type: Grant
    Filed: February 13, 1989
    Date of Patent: September 25, 1990
    Assignee: Canon Kabushiki Kaisha
    Inventors: Shinjiro Okada, Tohru Takahashi, Hideyuki Kawagishi, Yutaka Inaba, Osamu Taniguchi
  • Patent number: 4916357
    Abstract: A color cathode ray tube according to this invention comprises a cylindrical neck section having an electron gun which emits three electron beams, a funnel section extending from the neck section, and a panel section having a faceplate on which an image is formed. Phosphor stripes for emitting red, green, and blue light rays, upon electron beams landing thereon, are formed on an inner surface of a faceplate of the panel. A shadow mask having slit apertures for directing the three electron beams onto the corresponding phosphor stripes is arranged in the panel, and is welded to a mask frame which is suspended and supported on the panel by supporting structures welded to the frame. Each supporting structure comprises a fixed section secured to the frame, and a movable section having a hole into which a panel pin is fitted.
    Type: Grant
    Filed: April 15, 1988
    Date of Patent: April 10, 1990
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Michio Nakamura, Toshinao Sone, Tohru Takahashi, Masami Hasegawa
  • Patent number: 4913088
    Abstract: A method of toner transfer development in which a low frequency alternating electrical bias is applied to the space between a latent image bearing member and a developer carrying member to develop the latent image on the latent image bearing member, and an apparatus for carrying out the same method. This bias has a first process in which reciprocal movement of developer particles is effected also between the non-image area of the latent image bearing member and the developer carrying member, and a second process in which the intensity of the bias is adjusted so that one-sided movement of developer particles from the developer carrying member to the image area and one-sided movement of developer particles from the non-image area to the developer carrying member may take place.
    Type: Grant
    Filed: March 4, 1987
    Date of Patent: April 3, 1990
    Assignee: Canon Kabushiki Kaisha
    Inventors: Junichiro Kanbe, Tsutomu Toyono, Nagao Hosono, Tohru Takahashi
  • Patent number: 4906072
    Abstract: A driving apparatus suitable as, e.g., an electrode plate for an optical modulation device such as a liquid crystal device, comprises a conductor film, a plurality of voltage supply lines electrically connected to the conductor film respectively by the medium of a resistor, means for simultaneously applying a voltage signal to at least two voltage supply lines among the plurality of voltage supply lines, and means for changing a potential level provided to the conductor film defined between the at least two voltage supply lines.
    Type: Grant
    Filed: October 6, 1987
    Date of Patent: March 6, 1990
    Assignee: Canon Kabushiki Kaisha
    Inventors: Shuzo Kaneko, Tohru Takahashi
  • Patent number: 4853752
    Abstract: An enlarged image of an original image is reproduced by enlarge-processing image data of divisional areas of the original image and sequentially printing out the image data.
    Type: Grant
    Filed: January 27, 1988
    Date of Patent: August 1, 1989
    Assignee: Canon Kabushiki Kaisha
    Inventors: Tohru Takahashi, Nobuo Kitajima, Naoto Kawamura
  • Patent number: 4818078
    Abstract: An optical modulation device comprises a first substrate having thereon a first conductor film, a second substrate having thereon a second conductor film disposed opposite to the first conductor film, and an optical modulation material disposed between the first and second substrates. The optical modulation device is driven by forming a potential gradient along the extension of the first conductor film or both the first and second conductor films, and applying an information signal to the first or second conductor film.
    Type: Grant
    Filed: November 25, 1986
    Date of Patent: April 4, 1989
    Assignee: Canon Kabushiki Kaisha
    Inventors: Akihiro Mouri, Hiroyuki Kitayama, Shuzo Kaneko, Tohru Takahashi, Masahiko Enari, Mitsutoshi Kuno, Tsutomu Toyono
  • Patent number: 4806813
    Abstract: A motor comprises a rotor made of a permanent magnet and pairs of yokes having pairs of magnetic pole parts arranged round the circumference of the rotor. The rotor is arranged to be pivotally carried by a bearing part disposed at one end of the yoke. A position detecting element which detects the magnetic pole position of the rotor is carried by the yoke. An exciting coil is wound round each pair of the yokes.
    Type: Grant
    Filed: March 17, 1987
    Date of Patent: February 21, 1989
    Assignees: Canon Kabushiki Kaisha, Canon Denshi Kabushiki Kaisha
    Inventors: Akiyasu Sumi, Shigeru Yoshida, Akira Kurosawa, Tohru Takahashi, Yoshitaka Kondoh, Tatsuo Chigira
  • Patent number: 4796911
    Abstract: An automotive suspension system has a roll stablizer with an adjustable torsion modulus. The torsion modulus of the stabilizer is adjusted depending upon road surface conditions and other parameters. A controller is associated with the stabilizer to adjust its torsion modulus. When the vehicle is moving on a relatively smooth road surface, the torsion modulus of the stabilizer is adjusted toward to a relatively high value. On the other hand, when the vehicle travels along a rough road, the torsion modulus is adjusted toward a lower value.
    Type: Grant
    Filed: February 24, 1987
    Date of Patent: January 10, 1989
    Assignee: Nissan Motor Company, Ltd.
    Inventors: Junsuke Kuroki, Tohru Takahashi, Ken Ito