Patents by Inventor Yukio Ito

Yukio Ito 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: 6199783
    Abstract: In a spinning reel for fishing, a spool shaft having a spool at the end is slidably inserted into a flier shaft rotatably supported by a reel body so that the spool shaft can slide in the axial direction. A protruding sliding guide is formed in one of the outer circumference of the spool shaft and the inner circumference of the flier shaft. The sliding guide may be arranged at both end portions of the flier shaft in the longitudinal direction.
    Type: Grant
    Filed: March 22, 1999
    Date of Patent: March 13, 2001
    Assignee: Daiwa Seiko, Inc.
    Inventor: Yukio Ito
  • Patent number: 6185158
    Abstract: A small electronic apparatus provided with a functional display unit is formed of function driving device for generating function driving signals corresponding to a plurality of functions, a plurality of functional display devices corresponding to the functions and including first and second display devices, and a single motor electrically connected to the function driving devices and operated according to the function driving signals from the function driving device. A driving device transmits a driving force to the first functional display device, and an intermittent driving device is connected to the driving device to operate in association therewith. The intermittent driving device rotates the second display device intermittently. A clocking device is electrically connected to the function driving device.
    Type: Grant
    Filed: April 30, 1998
    Date of Patent: February 6, 2001
    Assignee: Citizen Watch Co., Ltd.
    Inventors: Yukio Ito, Tomio Okigami, Isao Kitazawa
  • Patent number: 6103208
    Abstract: A method for purifying an exhaust gas by contacting the exhaust gas with an exhaust gas-purifying catalyst comprising a nitrogen oxide-removing catalyst and an adsorbent for ethylene comprising a zeolite which contains Ag, and also Pd, optionally which has a ferrierite structure.
    Type: Grant
    Filed: October 28, 1999
    Date of Patent: August 15, 2000
    Assignee: Tosoh Corporation
    Inventors: Hiroshi Ogawa, Yukio Ito, Masao Nakano, Keiji Itabashi
  • Patent number: 6098840
    Abstract: A card-dispensing device has a mechanism for forcibly modifying the attitude of the slide during the forward run of the slide from a horizontal attitude in which the slide is pushing a card forward to an attitude which is inclined through a fixed angle, and then forcibly returned to its initial horizontal attitude during the backward run.
    Type: Grant
    Filed: February 24, 1998
    Date of Patent: August 8, 2000
    Assignee: Kabushiki Kaisha Nippon Conlux
    Inventors: Yukio Ito, Yoshihisa Hirayama, Hideo Tanaka, Takashi Imaizumi
  • Patent number: 6071343
    Abstract: A heat treatment jig with a silicon carbide coating for production of a semiconductor includes a base material and a silicon carbide film formed on the surface of the base material by a CVD method. The silicon carbide film is formed from a plurality of layers substantially parallel to the surface of the base material, and at least one of the layers is formed as a nucleus formation layer while the other layers are formed as ordinary crystal layers so that crystal growth between the ordinary crystal layers across the nucleus formation layer is discontinuous while crystal growth of the silicon carbide in the ordinary crystal layers are continuous in a direction of thickness of the ordinary crystal layers.
    Type: Grant
    Filed: November 5, 1996
    Date of Patent: June 6, 2000
    Assignee: Toshiba Ceramics Co., Ltd.
    Inventors: Takeshi Inaba, Shuichi Takeda, Shigeo Kato, Yasumi Sasaki, Yukio Ito, Masanori Sato
  • Patent number: 6042797
    Abstract: An adsorbent for ethylene, comprising a zeolite which contains Ag and which has a ferrierite structure with a SiO.sub.2 /Al.sub.2 O.sub.3 molar ratio being at least 15.
    Type: Grant
    Filed: June 30, 1998
    Date of Patent: March 28, 2000
    Assignee: Tosoh Corporation
    Inventors: Hiroshi Ogawa, Yukio Ito, Masao Nakano, Keiji Itabashi
  • Patent number: 6042377
    Abstract: A dental handpiece having a detachable motor. The dental handpiece includes a handpiece body having a dental tool, a driving section detachably connected to the handpiece body, the driving section further including a motor for operatively driving the dental tool, and a motor casing having a substantially tubular wall for defining a motor cavity for accommodating the motor. The motor casing allows the motor to be inserted and removed in an axial direction including a fastener for holding the motor in position in the motor casing.
    Type: Grant
    Filed: September 22, 1998
    Date of Patent: March 28, 2000
    Assignee: Nakanishi, Inc.
    Inventor: Yukio Ito
  • Patent number: 6007012
    Abstract: The fishing reel comprises: a fishing line take-up drive mechanism (16) which is disposed in a reel main body (12) and drives a spool (10) so that the spool (10) takes up a fishing line therearound; a reversal preventive mechanism (18) which is disposed in the reel main body (12) and can be switched selectively between a reversal preventive state for preventing the reversal of the fishing line take-up drive mechanism in a fishing line play-out direction and a reversal allowable state for allowing the reversal of the fishing line take-up drive mechanism; and, a reversal prevention switching mechanism (22) which is disposed in the reel main body (12) and, by operating an operation part (20), switches the reversal preventive state and reversal allowable state of the reversal preventive mechanism over to each other.
    Type: Grant
    Filed: January 6, 1998
    Date of Patent: December 28, 1999
    Assignee: Daiwa Seiko, Inc.
    Inventor: Yukio Ito
  • Patent number: 5984219
    Abstract: In a spinning reel for fishing, a fishline guide roller is rotatably supported on a bail support arm pivotably mounted on a rotor. The guide roller has a flattened shape such that a ratio of an axial length of the roller relative to a diameter thereof falls within 0.10-0.40. Further, the guide roller is formed with a narrow fishline guide groove so that a ratio of an axial length of the fishline guide groove relative to an axial length of the roller falls within 0.05-0.35. It is possible to make a fishline guide roller small in weight and size and to restrict axial motion of a fishline along the guide roller which, among other advantages, reduces line twist in the fishline.
    Type: Grant
    Filed: July 17, 1997
    Date of Patent: November 16, 1999
    Assignee: Daiwa Seiko, Inc.
    Inventors: Masamitsu Miyajima, Yukio Ito, Kyoichi Kaneko, Takashi Shibata, Wataru Tsutsumi, Eiji Shinohara, Shinji Takeuchi
  • Patent number: 5964336
    Abstract: A sensor section for obtaining identification data from a bill passing through a bill transfer path can selectively be mounted in a plurality of positions on the body of a bill identifying apparatus. The sensor section is mounted in one of the mounting positions, and a certain region of the bill passing through the transfer path is sensed by means of a sensor section to obtain identification data. When the use of forged bill is identified by the bill identifying apparatus, or after the machine has been used for a predetermined time, the mounting position of the sensor section is changed to another one. Thereupon, the sensor section senses other region of the bill passing through the transfer path to obtain identification data. Thus, the sensor section can easily cope with the use of the counterfeit bill even if the bill identifying apparatus is designed to be capable of sensing only a part of the whole area of the bill.
    Type: Grant
    Filed: July 15, 1997
    Date of Patent: October 12, 1999
    Assignee: Nippon Conlux Co., Ltd.
    Inventors: Eiji Itako, Yukio Ito
  • Patent number: 5941615
    Abstract: A movable structure for a display includes: a display device placed in a substantially vertical state in a front opening of a chassis; a sliding member disposed on the chassis and supporting a lower fulcrum of a lower end portion of the display device so as to be movable in back and forth directions; and a guide groove disposed on the chassis and supporting an upper fulcrum of an upper end portion of the display device so as to be movable in vertical directions, so that the upper end portion of the display device downward moves while the lower end portion forward moves, thereby opening the front opening of the chassis, wherein the sliding member includes a first sliding member supported with the chassis so as to be slidable in the back and forth directions by a first sliding stroke, and a second sliding member supported on the first sliding member so as to be slidable in the back and forth directions by a second sliding stroke and supporting the lower fulcrum of the lower end portion of the display device, wh
    Type: Grant
    Filed: October 22, 1997
    Date of Patent: August 24, 1999
    Assignees: Harness System Technologies Research, Ltd., Sumitomo Wiring Systems, Ltd., Sumitomo Electric Industries, Ltd.
    Inventors: Yukio Ito, Masashi Sugimoto
  • Patent number: 5895855
    Abstract: In an ultrasonic inspection apparatus, a piezoelectric element having a first resonant frequency is stuck to a complex resonance member having a second resonant frequency. The second resonant frequency is determined with a conversion in terms of half wavelength. A resultant ultrasonic probe transmits/receives ultrasonic waves of the first resonant frequency and a plurality of other frequencies. In constructing an ultrasonic tomographic image of the object to be inspected from a received signal obtained by using the ultrasonic probe, the imaging frequency is changed according to the depth in the object to be inspected.
    Type: Grant
    Filed: March 12, 1997
    Date of Patent: April 20, 1999
    Assignee: Hitachi Medical Co.
    Inventors: Yuko Ishikawa, Yukio Ito, Hiroshi Kanda
  • Patent number: 5886454
    Abstract: An ultrasonic probe includes a plurality of piezoelectric elements arrayed on acoustic absorption backing material with predetermined spaces, a plurality of acoustic matching members formed on the piezoelectric elements and arrayed with gaps smaller than array gaps of the piezoelectric elements, polymer resin with which only the gaps between the piezoelectric elements are filled and having hardness lower than material of the piezoelectric elements, and an acoustic lens formed on the plurality of acoustic matching members.
    Type: Grant
    Filed: February 18, 1997
    Date of Patent: March 23, 1999
    Assignee: Hitachi Medical Corporation
    Inventors: Yukio Ito, Yutaka Sato, Toshio Kondo, Takaya Ohsawa
  • Patent number: 5829439
    Abstract: A needle-like ultrasonic probe includes an inner needle received in a hollow, tubular outer needle for rotation about an axis thereof. The inner needle has a pointed distal end, and a notch is formed in an outer peripheral surface of that portion of the inner needle which is located adjacent to the distal end thereof. At least one ultrasonic transducer, as well as an acoustic lens for converging an ultrasonic wave, produced by the ultrasonic transducer, onto a point near to the outer peripheral surface of the inner needle, is provided in the notch. A filler, having an outer surface conforming to the outer peripheral surface of the inner needle, is fitted in the notch. With this construction, after the inner needle is smoothly stuck into a living tissue, even if it is rotated and axially moved, the living tissue is less affected or damaged by the inner needle.
    Type: Grant
    Filed: June 28, 1996
    Date of Patent: November 3, 1998
    Assignee: Hitachi Medical Corporation
    Inventors: Koichi Yokosawa, Shizuo Ishikawa, Ryuichi Shinomura, Yukio Ito, Shuzo Sano, Hiroshi Kanda, Yutaka Sato, Toshio Kondo
  • Patent number: 5820051
    Abstract: A spinning reel for fishing in which a return operation to return a bail to its fishing line retrieving position after casting of a fishing line as well as removal of the unrotatable state of a spool can be carried out automatically and easily. The spinning reel for fishing has a structure which includes a reverse-function lever (6) to be operated by a bail support member (29), a connecting body (5) which is movably fitted with the outer periphery of a large-diameter cylindrical portion (2c) of a rotor (2) connected to the reverse-function lever (6) and also which is fitted with a spool (3) in such a manner that it is free to move but is always prevented against rotation, and a lock member (7) which is fitted with a spool shaft (4) movably but unrotatably.
    Type: Grant
    Filed: October 4, 1996
    Date of Patent: October 13, 1998
    Assignee: Daiwa Seiko, Inc.
    Inventors: Shinji Takeuchi, Yukio Ito
  • Patent number: 5643532
    Abstract: A spring steel of medium strength and sufficient corrosion resistance prepared by simple procedures, and therefore, at a low cost, is provided. The spring steel has the alloy composition of: C 0.3-0.6%, Si 1.0-2.0%, Mn 0.1% to less than 0.5%, Cr 0.4-1.0%, V 0.1-0.3%, Ni more than 0.5% to 1.2%, Cu 0.1-0.3% and the balance of Fe, wherein S being at highest 0.005%, and [O], at highest 0.0015%. Addition of Ca 0.001-0.005% is preferable. In order to ensure clearly improved fatigue limit under corrosive environment to the conventional steel, SUP7, specific contents of S, Ni, Cr, Cu and V are chosen in the range set forth above. For the purpose of obtaining such a low hardness after normalizing at which annealing prior to processing is unnecessary contents of C, Si, Mn, Cr and Ni are further chosen in the above ranges.
    Type: Grant
    Filed: September 29, 1995
    Date of Patent: July 1, 1997
    Assignee: Daido Tokushuko Kabushiki Kaisha
    Inventor: Yukio Ito
  • Patent number: 5567366
    Abstract: A green body molded in a pressurized slip casting machine is loaded onto a pallet and sent to a conveyor. An image of the green body is picked up from above by a CCD camera, and whether the green body is a rectangular tank or a triangular tank is distinguished. When the green body is a rectangular tank holes are made in it by a first holemaking device, and when the green body is a triangular tank holes are made in it by a second holemaking device. After that, water removal, shape correction, deburring and the like are carried out automatically.
    Type: Grant
    Filed: June 29, 1994
    Date of Patent: October 22, 1996
    Assignee: Inax Corporation
    Inventors: Kentaro Motegi, Yukio Ito, Yoshitaka Okamoto, Kuniyoshi Komura
  • Patent number: 5525859
    Abstract: A color cathode ray tube having an electron beam source has a glass panel with a plurality of fluorescent stripes and a plurality of black stripes located between each two adjacent fluorescent stripes. An aperture grill is located between the electron beam source and the glass panel. A plurality of parallel grill tapes are located between an upper part and a lower part of the aperture grill, and a plurality of slits are provided between each two adjacent grill tapes. The inside stress of a center grill tape is expressed by .alpha., the length of the grill tape at a center of the aperture grill is expressed by L.sub.0, and a grill tape pitch of the aperture grill is expressed by P.sub.ag. The inside stress is expressed by the following formula:.alpha.>(L.sub.0 /P.sub.ag).sup.0.725 *(1.329*10.sup.-2 *L.sub.0 +5.354)*10.sup.-2.
    Type: Grant
    Filed: December 20, 1994
    Date of Patent: June 11, 1996
    Assignee: Sony Corporation
    Inventors: Yukio Ito, Jun Yamazaki
  • Patent number: 5379769
    Abstract: An ultrasonic diagnostic apparatus includes a circuit for detecting a portion which changes more than a predetermined magnitude in the received echo signal, the portion being a changing point corresponding to a measurement point to be measured within the inspected object, a circuit for measuring an elapsed time until the changing point is detected from a timing point at which the echo signal is detected, a circuit for obtaining luminance values in correspondence with the elapsed time as display luminance values of the measurement point, and a circuit for displaying the measurement point within the inspected object by the luminance values thus obtained.
    Type: Grant
    Filed: November 29, 1993
    Date of Patent: January 10, 1995
    Assignee: Hitachi Medical Corporation
    Inventors: Yukio Ito, Yoshihiro Goto
  • Patent number: 5353220
    Abstract: A plurality of Doppler image data corresponding to a plurality of sliced planes of an object which are different from one another, respectively, are received. The plurality of Doppler image data shows distributions of first and second moving directions and moving velocities of a moving substance in the object on the plurality of sliced planes, respectively. First and second data showing distribution corresponding to each of a plurality of velocity ranges of the moving velocities among the distribution of the first and second moving direction, respectively, of the moving substance on each of the sliced planes is obtained based on the Doppler image data. Each of first and second three-dimensional image data is obtained based on the data corresponding to each of the plurality of velocity ranges and also corresponding to all of the plurality of sliced planes among all of the first and second data, respectively.
    Type: Grant
    Filed: March 19, 1993
    Date of Patent: October 4, 1994
    Assignee: Hitachi Medical Corporation
    Inventors: Yukio Ito, Ken Ishikawa, Osamu Sasahara, Yoshihiro Goto