Patents by Inventor Kiyoyuki Mutaguchi

Kiyoyuki Mutaguchi 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: 7295746
    Abstract: In an optical connector for use in connecting an optical fiber, a shell member has an engaging portion. An internal member holds the optical fiber and is received in the shell member to be removable in a first direction. A stopper is engaged with the engaging portion in the first direction. A spring is engaged with the internal member and the stopper and urges the internal member towards a second direction opposite to the first direction. The shell member has a release operation portion for releasing the engaging portion from the stopper.
    Type: Grant
    Filed: April 1, 2005
    Date of Patent: November 13, 2007
    Assignees: Japan Aviation Electronics Industry, Limited, Nippon Telegraph and Telephone Corporation
    Inventors: Yuichi Koreeda, Makoto Sanguu, Kiyoyuki Mutaguchi, Yoshiteru Abe, Masaru Kobayashi, Ryou Nagase
  • Patent number: 7275874
    Abstract: An optical connector comprises a clamp member holding an optical fiber, a first housing to which the clamp member is fixed, and a second housing fitted to the first housing. The first housing has an aligning portion for aligning and positioning the optical fiber, and a clamp holding portion holding the clamp member. The optical fiber has an end portion protruding forward from the aligning portion in a cantilevered state.
    Type: Grant
    Filed: August 6, 2004
    Date of Patent: October 2, 2007
    Assignee: Japan Aviation Electronics Industry, Limited
    Inventors: Jun Takeda, Akihiro Onogawa, Yuichi Koreeda, Masashi Maruyama, Haruyuki Koshimizu, Kiyoyuki Mutaguchi, Hidehiko Matsushita, Shin Sasaki
  • Patent number: 7215868
    Abstract: In a fixing apparatus for fixing an optical connector to an optical cable having an optical fiber and wire members arranged around the optical fiber, the fixing apparatus includes first, second, and third holding members. The first holding member is adapted to be inserted between the wire member and the optical fiber. The second holding member is adapted to be disposed outside the wire members, the second holding member cooperating with the first holding member to tightly hold the wire members therebetween. The third holding member surrounding the second holding member and having an axial end portion adapted to be engaged with the second holding member in a rotation direction with respect to the optical cable. In addition, the third holding member has another axial end portion adapted to be connected to the optical connector.
    Type: Grant
    Filed: November 29, 2005
    Date of Patent: May 8, 2007
    Assignee: Japan Aviation Electronics Industry, Limited
    Inventors: Hideto Shimazu, Akihiro Onogawa, Yuichi Koreeda, Haruyuki Koshimizu, Toshifumi Takagi, Kiyoyuki Mutaguchi, Kiyokazu Fukudome
  • Patent number: 7149401
    Abstract: A disassembling tool includes a holding block having a housing portion for accommodating a plug connector, a slide block, and a handling part for sliding the slide block. The plug connector comprises an outer member and a plug frame and is accommodated in the housing portion of the holding block. When turning a handle of the handling part, the slide block is slidably moved so that projections provided on the slide block release the locking between locking portions of the outer member and locked portions of the plug frame. Following this, contact portions provided on the slide block come into contact with the plug frame so as to push it out of the outer member by a given amount.
    Type: Grant
    Filed: September 30, 2004
    Date of Patent: December 12, 2006
    Assignees: Japan Aviation Electronics Industry, Limited, Nippon Telegraph and Telephone Corporation
    Inventors: Yuichi Koreeda, Makoto Sanguu, Kiyoyuki Mutaguchi, Yoshiteru Abe, Masaru Kobayashi, Ryou Nagase
  • Publication number: 20060115229
    Abstract: In a fixing apparatus for fixing an optical connector to an optical cable having an optical fiber and wire members arranged around the optical fiber, the fixing apparatus includes first, second, and third holding members. The first holding member is adapted to be inserted between the wire member and the optical fiber. The second holding member is adapted to be disposed outside the wire members, the second holding member cooperating with the first holding member to tightly hold the wire members therebetween. The third holding member surrounding the second holding member and having an axial end portion adapted to be engaged with the second holding member in a rotation direction with respect to the optical cable. In addition, the third holding member has another axial end portion adapted to be connected to the optical connector.
    Type: Application
    Filed: November 29, 2005
    Publication date: June 1, 2006
    Inventors: Hideto Shimazu, Akihiro Onogawa, Yuichi Koreeda, Haruyuki Koshimizu, Toshifumi Takagi, Kiyoyuki Mutaguchi, Kiyokazu Fukudome
  • Publication number: 20050226567
    Abstract: In an optical connector for use in connecting an optical fiber, a shell member has an engaging portion. An internal member holds the optical fiber and is received in the shell member to be removable in a first direction. A stopper is engaged with the engaging portion in the first direction. A spring is engaged with the internal member and the stopper and urges the internal member towards a second direction opposite to the first direction. The shell member has a release operation portion for releasing the engaging portion from the stopper.
    Type: Application
    Filed: April 1, 2005
    Publication date: October 13, 2005
    Inventors: Yuichi Koreeda, Makoto Sanguu, Kiyoyuki Mutaguchi, Yoshiteru Abe, Masaru Kobayashi, Ryou Nagase
  • Publication number: 20050084225
    Abstract: A disassembling tool includes a holding block having a housing portion for accommodating a plug connector, a slide block, and a handling part for sliding the slide block. The plug connector comprises an outer member and a plug frame and is accommodated in the housing portion of the holding block. When turning a handle of the handling part, the slide block is slidably moved so that projections provided on the slide block release the locking between locking portions of the outer member and locked portions of the plug frame. Following this, contact portions provided on the slide block come into contact with the plug frame so as to push it out of the outer member by a given amount.
    Type: Application
    Filed: September 30, 2004
    Publication date: April 21, 2005
    Inventors: Yuichi Koreeda, Makoto Sanguu, Kiyoyuki Mutaguchi, Yoshiteru Abe, Masaru Kobayashi, Ryou Nagase
  • Publication number: 20050031268
    Abstract: An optical connector comprises a clamp member holding an optical fiber, a first housing to which the clamp member is fixed, and a second housing fitted to the first housing. The first housing has an aligning portion for aligning and positioning the optical fiber, and a clamp holding portion holding the clamp member. The optical fiber has an end portion protruding forward from the aligning portion in a cantilevered state.
    Type: Application
    Filed: August 6, 2004
    Publication date: February 10, 2005
    Inventors: Jun Takeda, Akihiro Onogawa, Yuichi Koreeda, Masashi Maruyama, Haruyuki Koshimizu, Kiyoyuki Mutaguchi, Hidehiko Matsushita, Shin Sasaki