Patents by Inventor Shunji Nakahashi

Shunji Nakahashi 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).

  • Reed switch
    Patent number: 8659375
    Abstract: A reed switch includes an envelope. First and second fixed terminal pieces are at one end of the envelope. A third fixed terminal piece is at another end of the envelope. A movable reed piece has a base end portion facing the one end portion of the third fixed terminal piece across a magnetic gap, a distal end portion to contact the first fixed terminal piece, and a movable contact portion. A first spring member has a base end portion secured to the first fixed terminal piece and a distal end portion to contact the movable contact portion. A second spring member has a base end portion secured to the second fixed terminal piece and a distal end portion to contact the movable contact portion. A third spring member has one and another end portions respectively secured to the movable reed piece and the third fixed terminal piece.
    Type: Grant
    Filed: February 2, 2012
    Date of Patent: February 25, 2014
    Assignee: Kabushiki Kaisha Yaskawa Denki
    Inventors: Shunji Nakahashi, Kenjiro Hamada, Yoichi Wakabayashi
  • REED SWITCH
    Publication number: 20140049346
    Abstract: A reed switch includes an envelope, a first fixed terminal piece, a second fixed terminal piece, a third fixed terminal piece, a movable reed piece, a first spring member, a second spring member, and a third spring member. The movable reed piece has a base end portion, a distal end portion, and a movable contact portion. A distal end portion of the second spring member is farther from the first spring member than a base end portion of the second spring member in a state where the movable contact portion is spaced apart from a distal end portion of the first spring member and the distal end portion of the second spring member.
    Type: Application
    Filed: October 29, 2013
    Publication date: February 20, 2014
    Applicant: KABUSHIKI KAISHA YASKAWA DENKI
    Inventors: Shunji NAKAHASHI, Kenjiro HAMADA, Yoichi WAKABAYASHI
  • REED SWITCH
    Publication number: 20120235774
    Abstract: A reed switch includes an envelope. First and second fixed terminal pieces are at one end of the envelope. A third fixed terminal piece is at another end of the envelope. A movable reed piece has a base end portion facing the one end portion of the third fixed terminal piece across a magnetic gap, a distal end portion to contact the first fixed terminal piece, and a movable contact portion. A first spring member has a base end portion secured to the first fixed terminal piece and a distal end portion to contact the movable contact portion. A second spring member has a base end portion secured to the second fixed terminal piece and a distal end portion to contact the movable contact portion. A third spring member has one and another end portions respectively secured to the movable reed piece and the third fixed terminal piece.
    Type: Application
    Filed: February 2, 2012
    Publication date: September 20, 2012
    Applicant: KABUSHIKI KAISHA YASKAWA DENKI
    Inventors: Shunji Nakahashi, Kenjiro Hamada, Yoichi Wakabayashi