Patents by Inventor Koji Yajima

Koji Yajima 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: 10680629
    Abstract: An atomic oscillator includes a light emitting element, an atomic cell, and a light receiving element that receives the light passing through the atomic cell. The atomic cell has a first chamber containing alkali metal atoms in a gas state and having a first wall through which the light from the light emitting element passes, a second chamber containing alkali metal atoms in a liquid state and having a second wall, a passage connecting the first chamber and the second chamber to each other, and a part which is disposed between the first chamber and the second chamber and has a thermal conductivity lower than the thermal conductivity of a material forming the first wall and the thermal conductivity of a material forming the second wall.
    Type: Grant
    Filed: April 26, 2019
    Date of Patent: June 9, 2020
    Assignee: Seiko Epson Corporation
    Inventors: Koji Chindo, Nobuhito Hayashi, Hideaki Yajima
  • Publication number: 20190334536
    Abstract: An atomic oscillator includes a light emitting element, an atomic cell, and a light receiving element that receives the light passing through the atomic cell. The atomic cell has a first chamber containing alkali metal atoms in a gas state and having a first wall through which the light from the light emitting element passes, a second chamber containing alkali metal atoms in a liquid state and having a second wall, a passage connecting the first chamber and the second chamber to each other, and a part which is disposed between the first chamber and the second chamber and has a thermal conductivity lower than the thermal conductivity of a material forming the first wall and the thermal conductivity of a material forming the second wall.
    Type: Application
    Filed: April 26, 2019
    Publication date: October 31, 2019
    Inventors: Koji CHINDO, Nobuhito HAYASHI, Hideaki YAJIMA
  • Patent number: 10286952
    Abstract: A vehicle traveling control apparatus includes a first setting unit and a correcting unit. The control target point setting unit sets a set position of a preceding vehicle ahead of an own vehicle in a vehicle width direction as a control target point of follow-up traveling for traveling while following the preceding vehicle. The steering control amount correcting unit corrects, on a basis of deviation between a target steering angle that brings the own vehicle to the control target point and an actual steering angle, an amount of a steering control that controls the own vehicle to the target steering angle which is a steering angle that brings the own vehicle to the control target point.
    Type: Grant
    Filed: December 5, 2016
    Date of Patent: May 14, 2019
    Assignee: SUBARU CORPORATION
    Inventors: Yasushi Takaso, Fumihito Yamaguchi, Koji Matsuno, Masayuki Yajima
  • Patent number: 7191049
    Abstract: When an own vehicle makes a follow-up traveling control targeting a preceding vehicle traveling ahead of the own vehicle, in case where the widthwise movement of the preceding is detected and a second preceding vehicle traveling ahead of the preceding vehicle is detected, the preceding vehicle is regarded as undertaking to pass the second preceding vehicle and acceleration of the own vehicle is inhibited. Further, in a situation where the preceding vehicle and the second preceding vehicle run in parallel, these vehicles can be recognized discriminatingly from each other based on the memorized widths of theses vehicle and the direction of the widthwise movement of the preceding vehicle. Further, when it is judged that the preceding vehicle travels faster than the second preceding vehicle, the target of the follow-up traveling control is changed to the second preceding vehicle.
    Type: Grant
    Filed: March 3, 2004
    Date of Patent: March 13, 2007
    Assignee: Fuji Jukagyo Kabushiki Kaisha
    Inventor: Koji Yajima
  • Publication number: 20040176900
    Abstract: When an own vehicle makes a follow-up traveling control targeting a preceding vehicle traveling ahead of the own vehicle, in case where the widthwise movement of the preceding is detected and a second preceding vehicle traveling ahead of the preceding vehicle is detected, the preceding vehicle is regarded as undertaking to pass the second preceding vehicle and acceleration of the own vehicle is inhibited. Further, in a situation where the preceding vehicle and the second preceding vehicle run in parallel, these vehicles can be recognized discriminatingly from each other based on the memorized widths of theses vehicle and the direction of the widthwise movement of the preceding vehicle. Further, when it is judged that the preceding vehicle travels faster than the second preceding vehicle, the target of the follow-up traveling control is changed to the second preceding vehicle.
    Type: Application
    Filed: March 3, 2004
    Publication date: September 9, 2004
    Inventor: Koji Yajima
  • Patent number: 6491136
    Abstract: An elevator apparatus is provided with an elevator path having a restricted height. Under a roping ratio of 1:1, a thin driving unit having a traction sheave 1 and a driving mechanism 2 is positioned between an inner wall 3a of the elevator path 3 and a space occupied by an elevator car 4 rising and falling in the elevator path 3. One end of a suspension rope 7 is fixed to the elevator car 4 in a position below a ceiling 4c of the elevator car 4. With the arrangement, the car 4 can move close to the ceiling 4c of the elevator car 4 effectively. Further, it is possible to reduce respective heights of the elevator path 3 and a building equipped with the elevator apparatus.
    Type: Grant
    Filed: March 26, 2001
    Date of Patent: December 10, 2002
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Kiyoshi Kobayashi, Tadashi Munakata, Kosei Kamimura, Yasuyuki Wagatsuma, Hisao Yamamoto, Koji Yajima
  • Patent number: 6390243
    Abstract: An elevator apparatus is provided with an elevator path having a restricted height. Under a roping ratio of 1:1, a thin driving unit having a traction sheave 1 and a driving mechanism 2 is positioned between an inner wall 3a of the elevator path 3 and a space occupied by an elevator car 4 rising and falling in the elevator path 3. One end of a suspension rope 7 is fixed to the elevator car 4 in a position below a ceiling 4c of the elevator car 4. With the arrangement, the car 4 can move close to the ceiling 4c of the elevator car 4 effectively. Further, it is possible to reduce respective heights of the elevator path 3 and a building equipped with the elevator apparatus.
    Type: Grant
    Filed: March 26, 2001
    Date of Patent: May 21, 2002
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Kiyoshi Kobayashi, Tadashi Munakata, Kosei Kamimura, Yasuyuki Wagatsuma, Hisao Yamamoto, Koji Yajima
  • Patent number: 6382360
    Abstract: An elevator apparatus is provided with an elevator path having a restricted height. Under a roping ratio of 1:1, a thin driving unit having a traction sheave 1 and a driving mechanism 2 is positioned between an inner wall 3a of the elevator path 3 and a space occupied by an elevator car 4 rising and falling in the elevator path 3. One end of a suspension rope 7 is fixed to the elevator car 4 in a position below a ceiling 4c of the elevator car 4. With the arrangement, the car 4 can move close to the ceiling 4c of the elevator car 4 effectively. Further, it is possible to reduce respective heights of the elevator path 3 and a building equipped with the elevator apparatus.
    Type: Grant
    Filed: March 26, 2001
    Date of Patent: May 7, 2002
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Kiyoshi Kobayashi, Tadashi Munakata, Kosei Kamimura, Yasuyuki Wagatsuma, Hisao Yamamoto, Koji Yajima
  • Publication number: 20010009211
    Abstract: An elevator apparatus is provided with an elevator path having a restricted height. Under a roping ratio of 1:1, a thin driving unit having a traction sheave 1 and a driving mechanism 2 is positioned between an inner wall 3a of the elevator path 3 and a space occupied by an elevator car 4 rising and falling in the elevator path 3. One end of a suspension rope 7 is fixed to the elevator car 4 in a position below a ceiling 4c of the elevator car 4. With the arrangement, the car 4 can move close to the ceiling 4c of the elevator car 4 effectively. Further, it is possible to reduce respective heights of the elevator path 3 and a building equipped with the elevator apparatus.
    Type: Application
    Filed: March 26, 2001
    Publication date: July 26, 2001
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventors: Kiyoshi Kobayashi, Tadashi Munakata, Kosei Kamimura, Yasuyuki Wagatsuma, Hisao Yamamoto, Koji Yajima
  • Publication number: 20010009210
    Abstract: An elevator apparatus is provided with an elevator path having a restricted height. Under a roping ratio of 1:1, a thin driving unit having a traction sheave 1 and a driving mechanism 2 is positioned between an inner wall 3a of the elevator path 3 and a space occupied by an elevator car 4 rising and falling in the elevator path 3. One end of a suspension rope 7 is fixed to the elevator car 4 in a position below a ceiling 4c of the elevator car 4. With the arrangement, the car 4 can move close to the ceiling 4c of the elevator car 4 effectively. Further, it is possible to reduce respective heights of the elevator path 3 and a building equipped with the elevator apparatus.
    Type: Application
    Filed: March 26, 2001
    Publication date: July 26, 2001
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventors: Kiyoshi Kobayashi, Tadashi Munakata, Kosei Kamimura, Yasuyuki Wagatsuma, Hisao Yamamoto, Koji Yajima
  • Publication number: 20010009209
    Abstract: An elevator apparatus is provided with an elevator path having a restricted height. Under a roping ratio of 1:1, a thin driving unit having a traction sheave 1 and a driving mechanism 2 is positioned between an inner wall 3a of the elevator path 3 and a space occupied by an elevator car 4 rising and falling in the elevator path 3. One end of a suspension rope 7 is fixed to the elevator car 4 in a position below a ceiling 4c of the elevator car 4. With the arrangement, the car 4 can move close to the ceiling 4c of the elevator car 4 effectively. Further, it is possible to reduce respective heights of the elevator path 3 and a building equipped with the elevator apparatus.
    Type: Application
    Filed: March 26, 2001
    Publication date: July 26, 2001
    Inventors: Kiyoshi Kobayashi, Tadashi Munakata, Kosei Kamimura, Yasuyuki Wagatsuma, Hisao Yamamoto, Koji Yajima
  • Patent number: 6247557
    Abstract: An elevator apparatus including an elevator path having a restricted height. Under a roping ratio of 1:1, a thin driving unit having a traction sheave and a driving mechanism is positioned between an inner wall of the elevator path and a space occupied by an elevator car rising and falling in the elevator path. One end of a suspension rope is fixed to the elevator car in a position below a ceiling of the elevator car. With the arrangement, the car can move close to the ceiling of the elevator car effectively. Further, it is possible to reduce respective heights of the elevator path and a building equipped with the elevator apparatus.
    Type: Grant
    Filed: April 27, 1999
    Date of Patent: June 19, 2001
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Kiyoshi Kobayashi, Tadashi Munakata, Kosei Kamimura, Yasuyuki Wagatsuma, Hisao Yamamoto, Koji Yajima
  • Patent number: 4728856
    Abstract: A cathode ray tube comprises a face plate glass containing neodymium oxide (Nd.sub.2 O.sub.3); and a phosphor screen of plural color phosphors formed on an inner surface of said face plate glass wherein a phosphor of zinc sulfide activated with copper and aluminum (ZnS:Cu, Al) or a phosphor of zinc sulfide activated with copper, gold and aluminum (ZnS:Cu, Au, Al) is used as a green phosphor of said phosphor screen.
    Type: Grant
    Filed: May 9, 1984
    Date of Patent: March 1, 1988
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventors: Yasuo Iwasaki, Koji Yajima
  • Patent number: 4406971
    Abstract: A color cathode ray tube comprises a first fluorescent part on a part of an inner surface of a face plate and said first fluorescent part imparting a luminescence of a predetermining reference white color by irradiation of electron beams; a second fluorescent part on the remained part of the face plate and said second fluorescent part imparting red, green and blue fluorescent dots or stripes wherein the first fluorescent part for the reference white color is formed by a mixture or tricolor fluorescent materials for the second fluorescent part or a mixture of tricolor fluorescent materials which imparts a luminous spectrum being similar to that of the tricolor fluorescent materials for the second fluorescent part.
    Type: Grant
    Filed: July 11, 1979
    Date of Patent: September 27, 1983
    Assignees: Mitsubishi Denki Kabushiki Kaisha, Fuji Telecasting Co., Limited
    Inventors: Yutaka Takano, Koji Yajima, Takashi Ishii, Tadahisa Yoshida, Katsuhiro Ota, Shigeru Yagishita