Patents by Inventor Tamotsu Iwama

Tamotsu Iwama 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: 9160149
    Abstract: Provided is a wire grip, which has excellent workability for bracing the wire and which can grip a linear object for bracing the wire without applying any excessive load to the linear object. The wire grip comprises a stationary-side wire gripping portion having a body and a movable-side wire gripping portion, whereby a linear object can be gripped between them, where a first action portion for moving the movable-side wire gripping portion back and forth and a second action portion connected to the first action portion by a connecting rod are turnably attached to the body, whereby the connecting rod is pulled substantially parallel to the gripping portions so that the connecting rod, and the first and second action portions are linked to act to move the movable-side wire gripping portion towards the stationary-side wire gripping portion.
    Type: Grant
    Filed: August 22, 2013
    Date of Patent: October 13, 2015
    Assignee: NAGAKI SEIKI CO., LTD.
    Inventor: Tamotsu Iwama
  • Publication number: 20150244154
    Abstract: A wire gripper 10, which is lightweight and can perform a work for holding a gripped state of a tensioned wire easily and safely, is provided with a stationary gripping body 12 having a wire-like body pressing-down portion 24; a swinging member 14 swingably attached to the stationary gripping body by a supporting shaft 70; a movable gripping body 16 having a wire-like body holding portion; a connection member 18 swinging the swinging member; and a swinging member restricting portion 20 restricting an amount of swinging of the swinging member, wherein the stationary gripping body 12 is formed with reinforcing portions 32 and 40 in a region in which the supporting shaft is attached, and a wire-like body W clamped does not disengage from between the movable gripping body 16 whose movement amount is restricted by the swinging member restricting portion 20 and the stationary gripping body 12.
    Type: Application
    Filed: March 18, 2013
    Publication date: August 27, 2015
    Inventors: Takayuki Nagaki, Kazude Fujiwara, Naohiro Hirayama, Tamotsu Iwama
  • Publication number: 20150232314
    Abstract: A wire gripper 10 of the present invention is to provide with a lightweight and robust wire gripper; wherein the wire gripper is provided with a stationary gripping body 12 having a wire-like body pressing-down portion 24; a swinging member 14 swingably attached to the stationary gripping body by a supporting shaft 70; a movable gripping body 16 swung according to swinging of the swinging member; and a connection member 18 connected to the swinging member 14 and swinging the swinging member 14, wherein the stationary gripping body 16 is provided with a circular ridge 32 around a hole 30 in which the supporting shaft 70 for attaching the swinging member 14 is inserted in order to protect the supporting shaft 70.
    Type: Application
    Filed: March 18, 2013
    Publication date: August 20, 2015
    Applicant: NAGAKI SEIKI CO., LTD.
    Inventors: Takayuki Nagaki, Kazude Fujiwara, Naohiro Hirayama, Tamotsu Iwama
  • Patent number: 8789811
    Abstract: [Problem] A conventional wire puller is heavy in order to have enough rigidity. [Solution] Unlike the conventional wire puller having a guide part, the wire puller of the present invention has a guide part of a corded member formed integral with a frame board by folding an entrance side end of the corded member of the frame board in the direction for narrowing gap therebetween. Therefore, the wire puller of the present invention not only can reduce the number of parts but also can be decreased in weight.
    Type: Grant
    Filed: July 20, 2011
    Date of Patent: July 29, 2014
    Inventor: Tamotsu Iwama
  • Publication number: 20140054524
    Abstract: [Problem] Provided is a wire grip, which has excellent workability for bracing the wire and which can grip a linear object for bracing the wire without applying any excessive load to the linear object.
    Type: Application
    Filed: August 22, 2013
    Publication date: February 27, 2014
    Applicant: Nagaki Seiki Co., Ltd.
    Inventor: Tamotsu IWAMA
  • Patent number: 8540215
    Abstract: A wire grip comprising a stationary-side gripping portion provided with a body and having a substantially straight front shape, and a movable-side wire gripping portion arranged to face the stationary-side wire gripping portion and set movable back and forth with respect to the stationary-side wire gripping portion, whereby the linear object can be gripped between the stationary-side wire gripping portion and the movable-side wire gripping portion, wherein a first action portion for moving the movable-side wire gripping portion back and forth and a second action portion connected to the first action portion by a connecting rod are turnably attached at their individual ends to the body, wherein the other end of the first action portion and the other end of the second action portion are turnably attached to one end of the connection rod and an intermediate portion of the connection rod, respectively, wherein the other end of the connecting rod is pulled substantially parallel to the stationary-side wire grippin
    Type: Grant
    Filed: June 30, 2009
    Date of Patent: September 24, 2013
    Assignee: Nagaki Seiki Co., Ltd.
    Inventor: Tamotsu Iwama
  • Publication number: 20120132874
    Abstract: [Problem] Provided is a wire grip, which has excellent workability for bracing the wire and which can grip a linear object for bracing the wire without applying any excessive load to the linear object.
    Type: Application
    Filed: June 30, 2009
    Publication date: May 31, 2012
    Applicant: NAGAKI SEIKI CO., LTD
    Inventor: Tamotsu Iwama
  • Publication number: 20120012799
    Abstract: [Problem] A conventional wire puller is heavy in order to have enough rigidity. [Solution] Unlike the conventional wire puller having a guide part, the wire puller of the present invention has a guide part of a corded member formed integral with a frame board by folding an entrance side end of the corded member of the frame board in the direction for narrowing gap therebetween. Therefore, the wire puller of the present invention not only can reduce the number of parts but also can be decreased in weight.
    Type: Application
    Filed: July 20, 2011
    Publication date: January 19, 2012
    Inventor: Tamotsu IWAMA
  • Patent number: D633783
    Type: Grant
    Filed: December 28, 2009
    Date of Patent: March 8, 2011
    Assignee: Nagaki Seiki Co., Ltd
    Inventor: Tamotsu Iwama
  • Patent number: D633784
    Type: Grant
    Filed: January 19, 2010
    Date of Patent: March 8, 2011
    Assignee: Nagaki Seiki Co., Ltd.
    Inventor: Tamotsu Iwama