Patents by Inventor Yasuo Iwahashi

Yasuo Iwahashi 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: 8905499
    Abstract: There is provided a slide rail which includes a first rail member, a second rail member provided slidably with respect to the first rail member, the second rail member including a hole portion opening at least on a surface of the second rail member on the side of the first rail member, a lock lever and a rotating shaft provided on the surface of second rail member on the side of the first rail member, the lock lever being provided to be able to rotate about the rotating shaft, the lock lever including a tongue portion, the tongue portion being formed so as to be inserted in the hole portion, and a receiving portion provided on the second rail member and configured to hold the tongue portion of the lock lever from the direction of the first rail member.
    Type: Grant
    Filed: June 3, 2013
    Date of Patent: December 9, 2014
    Assignee: Fujitsu Limited
    Inventors: Takahisa Yoshizumi, Kazuhiro Watanabe, Yasuo Iwahashi, Motoshi Hamasaki
  • Publication number: 20130328470
    Abstract: There is provided a slide rail which includes a first rail member, a second rail member provided slidably with respect to the first rail member, the second rail member including a hole portion opening at least on a surface of the second rail member on the side of the first rail member, a lock lever and a rotating shaft provided on the surface of second rail member on the side of the first rail member, the lock lever being provided to be able to rotate about the rotating shaft, the lock lever including a tongue portion, the tongue portion being formed so as to be inserted in the hole portion, and a receiving portion provided on the second rail member and configured to hold the tongue portion of the lock lever from the direction of the first rail member.
    Type: Application
    Filed: June 3, 2013
    Publication date: December 12, 2013
    Inventors: Takahisa YOSHIZUMI, Kazuhiro Watanabe, Yasuo Iwahashi, Motoshi Hamasaki
  • Patent number: 7139531
    Abstract: Outdoor radio equipment includes a radio transmitting and receiving part for performing a modulation and demodulation process, and a common part for controlling an action of the radio transmitting and receiving part. The radio transmitting and receiving part is provided at the common part so as to be exposed to open air.
    Type: Grant
    Filed: August 6, 2003
    Date of Patent: November 21, 2006
    Assignee: Fujitsu Limited
    Inventors: Yasuo Iwahashi, Yuuichi Hagiwara, Tadamitsu Araki, Kouichi Sunaga
  • Publication number: 20040185906
    Abstract: Outdoor radio equipment includes a radio transmitting and receiving part for performing a modulation and demodulation process, and a common part for controlling an action of the radio transmitting and receiving part. The radio transmitting and receiving part is provided at the common part so as to be exposed to open air.
    Type: Application
    Filed: August 6, 2003
    Publication date: September 23, 2004
    Inventors: Yasuo Iwahashi, Yuuichi Hagiwara, Tadamitsu Araki, Kouichi Sunaga
  • Publication number: 20040072564
    Abstract: A communication method is capable of preventing an occurrence a change of a route for an underway communication between a mobile node and a correspondent node in a communication network and restraining an unnecessary packet from being forwarded to the correspondent node from the mobile node. The communication method is executed among the mobile node having a home address assigned in a first network and a temporary address assigned in a second network, an agent device surrogating a communication using the home address in the first network and a correspondent terminal communicating with the mobile node through the agent device. When the mobile node moves to the second network, the mobile node transmits information containing the temporary address to the correspondent node, and the correspondent node receives the information containing the temporary address and transmits the information to the temporary address of the mobile node.
    Type: Application
    Filed: August 6, 2003
    Publication date: April 15, 2004
    Inventors: Yasuo Iwahashi, Yuuichi Hagiwara, Tadamitsu Araki, Kouichi Sunaga
  • Patent number: 6320734
    Abstract: A communication device includes a number of transmitter/receiver/modem blocks installed in vertical positions. Each of the transmitter/receiver/modem blocks includes a supporting board having a front surface and a back surface, the supporting board including a plurality of fins on the front surface and a plurality of forced air-cooling fans on the supporting board. A front cover encloses the front surface of the supporting board, the front cover and the fins forming a plurality of ducts, the front cover and the front surface forming an internal opening under the fins. A back cover encloses the back surface of the supporting board. First heat-radiating circuit modules are provided at positions adjacent to the fins on the front surface. A second heat-radiating circuit module is provided within the opening.
    Type: Grant
    Filed: April 7, 1999
    Date of Patent: November 20, 2001
    Assignee: Fujitsu Limited
    Inventors: Hideki Sonobe, Yasuo Iwahashi, Masayuki Watabe, Toshiaki Suzuki, Hiroyuki Kiyanagi, Yasuhiro Shibuya
  • Patent number: 4975214
    Abstract: Magnetic iron oxide containing silicon element is produced in the form of generally octahedral particles having a sharp particle size distribution through a reaction of an aqueous solution of a ferrous salt having a controlled Fe(II)/Fe(III) ratio and containing a silicic compound with a little excess of an alkali, followed by oxidation of the resultant ferrous hydroxide. The magnetic iron oxide particles have an overall content of silicon element of 0.1-1.5 wt. % based on the iron element with the silicon localized at the core of the particles. The magnetic iron oxide particles have uniform surface properties not markedly changed under various conditions and have good dispersibility in a resin.
    Type: Grant
    Filed: August 18, 1989
    Date of Patent: December 4, 1990
    Assignee: Canon Kabushiki Kaisha
    Inventors: Kiichiro Sakashita, Yasuo Iwahashi