Patents by Inventor Kotaro NUKUI

Kotaro NUKUI 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).

  • Publication number: 20210055193
    Abstract: Provided is a load measuring device and a load measuring method, capable of preventing a measuring error caused by an initial load in a state where an elastic member is held by a pair of holding parts when a load of the elastic member at the time of stretching is measured. A pair of holding parts 5, 7 are caused to approach or space away with respect to each other relatively to an initial position at which the pair of the holding parts hold a close contact spring S, thereby making an initial load measured at the initial position zero, the pair of holding parts 5, 7 are caused to space away with respect to each other from a starting position being a position at which the initial load becomes zero, and a load at a time of stretching is caused to be measured.
    Type: Application
    Filed: March 14, 2019
    Publication date: February 25, 2021
    Inventors: Kaoru NAGASAWA, Kotaro NUKUI, Suguru SHIGENO
  • Patent number: 9358681
    Abstract: A work hanging apparatus includes a hanger line continuously conveying hangers each having a hook, a robot that has a hand with which a work having a hole is held and transfers the held work to a hanging location set in the hanger line, a controller controlling a movement of the hand to catch the hook of one of the hangers with the hole of the held work at the hanging location, a hole deviation detector that detects a positional deviation of the hole of the work, an attitude deviation detector that detects an attitudinal deviation of the hanger, and a corrector that corrects the movement of the hand according to the positional and attitudinal deviations.
    Type: Grant
    Filed: March 7, 2013
    Date of Patent: June 7, 2016
    Assignee: NHK Spring Co., Ltd.
    Inventors: Kotaro Nukui, Takashi Yajima
  • Patent number: 9056349
    Abstract: A coil wire material is bent by a first roll, a second roll, and a third roll. The bent coil wire material is pressed in a screwing direction, to shape a coil spring having a desired diameter and a pitch. A desired pitch can be accurately formed in a manner that a second roll provided on a downstream side of a conveying direction of the coil wire material is configured to be able to move hack and forth along the screwing direction of the coil spring and to be tiltable about an axis of rotation parallel to the conveying direction of the coil wire material.
    Type: Grant
    Filed: January 25, 2013
    Date of Patent: June 16, 2015
    Assignee: NHK SPRING CO., LTD.
    Inventors: Akira Katsuyama, Takayuki Morishima, Takashi Yajima, Yuji Mori, Kotaro Nukui
  • Patent number: 8983650
    Abstract: A work hanging apparatus includes a hanger line continuously conveying hangers each having a hook, a robot that has a hand with which a work having a hole is held and transfers the held work to a hanging location set in the hanger line, a controller controlling a movement of the hand to catch the hook of one of the hangers with the hole of the held work at the hanging location, a hole deviation detector that detects a positional deviation of the hole of the work, an attitude deviation detector that detects an attitudinal deviation of the hanger, and a corrector that corrects the movement of the hand according to the positional and attitudinal deviations.
    Type: Grant
    Filed: March 7, 2013
    Date of Patent: March 17, 2015
    Assignee: NHK Spring Co., Ltd.
    Inventors: Kotaro Nukui, Takashi Yajima
  • Patent number: 8733537
    Abstract: A guiding apparatus includes a hanger line that continuously conveys hangers that are suspended from the hanger line at predetermined intervals and a guide unit installed in the line and driven in synchronization with the line while holding at least one of the objects, thereby maintaining the attitude of the object and guiding the attitude maintained object along the line.
    Type: Grant
    Filed: March 7, 2013
    Date of Patent: May 27, 2014
    Assignee: NHK Spring Co., Ltd.
    Inventors: Kotaro Nukui, Satoshi Akiyama, Tsutomu Fukunaga, Masahiro Chigasaki
  • Publication number: 20130240328
    Abstract: A guiding apparatus includes a hanger line that continuously conveys hangers that are suspended from the hanger line at predetermined intervals and a guide unit installed in the line and driven in synchronization with the line while holding at least one of the objects, thereby maintaining the attitude of the object and guiding the attitude maintained object along the line.
    Type: Application
    Filed: March 7, 2013
    Publication date: September 19, 2013
    Applicant: NHK SPRING CO., LTD.
    Inventors: Kotaro NUKUI, Satoshi AKIYAMA, Tsutomu FUKUNAGA, Masahiro CHIGASAKI
  • Publication number: 20130245814
    Abstract: A work hanging apparatus includes a hanger line continuously conveying hangers each having a hook, a robot that has a hand with which a work having a hole is held and transfers the held work to a hanging location set in the hanger line, a controller controlling a movement of the hand to catch the hook of one of the hangers with the hole of the held work at the hanging location, a hole deviation detector that detects a positional deviation of the hole of the work, an attitude deviation detector that detects an attitudinal deviation of the hanger, and a corrector that corrects the movement of the hand according to the positional and attitudinal deviations.
    Type: Application
    Filed: March 7, 2013
    Publication date: September 19, 2013
    Applicant: NHK SPRING CO., LTD.
    Inventors: Kotaro NUKUI, Takashi YAJIMA