Patents by Inventor Yasushi Kumakawa

Yasushi Kumakawa 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: 8087703
    Abstract: A component connecting structure includes a first component having a flange portion, a second component having a flange portion, and a clip for holding the flange portions in a butted state. The clip formed into a generally polygonal shape has a spring body having first and second circumferential end portions overlapped with each other in a diameter reduced free state. The spring body has slits for inserting the flange portions butted against each other in the diameter reduced free state. The first and second circumferential end portions have a temporary engaging protrusion and a temporary engaging ledge, respectively. The temporary engaging ledge is engaged with the temporary engaging protrusion to hold a diameter expanded state of the spring body.
    Type: Grant
    Filed: April 18, 2008
    Date of Patent: January 3, 2012
    Assignee: Piolax Inc.
    Inventor: Yasushi Kumakawa
  • Publication number: 20080258462
    Abstract: A component connecting structure includes a first component having a flange portion, a second component having a flange portion, and a clip for holding the flange portions in a butted state. The clip formed into a generally polygonal shape has a spring body having first and second circumferential end portions overlapped with each other in a diameter reduced free state. The spring body has slits for inserting the flange portions butted against each other in the diameter reduced free state. The first and second circumferential end portions have a temporary engaging protrusion and a temporary engaging ledge, respectively. The temporary engaging ledge is engaged with the temporary engaging protrusion to hold a diameter expanded state of the spring body.
    Type: Application
    Filed: April 18, 2008
    Publication date: October 23, 2008
    Applicant: PIOLAX INC.
    Inventor: Yasushi KUMAKAWA
  • Patent number: 7320493
    Abstract: A sun visor includes a sun-visor body, an auxiliary visor, a sub-plate and a spring. The auxiliary visor is attached to the sun-visor body slidably. The sub-plate is attached to the auxiliary visor to slide between a first position where the auxiliary visor receives the sub-plate and a second position where the sub-plate is withdrawn from the auxiliary visor. The spring urges the sub-plate toward the second position. The spring includes a base and two arm portions continuous to the base. The center portion of a spring wire forms the base of the spring. The two arm portions are bent to cross each other. A center portion of the base is convex toward an intersection of the two arm portions. The base abuts against one of the auxiliary visor and the sub-plate. The two arm portions abut against the other to urge the other elastically.
    Type: Grant
    Filed: October 11, 2005
    Date of Patent: January 22, 2008
    Assignees: Piolax, Inc., Kasai Kogyo Co., Ltd.
    Inventors: Yasushi Kumakawa, Yoshiaki Enma
  • Publication number: 20060076796
    Abstract: A sun visor includes a sun-visor body, an auxiliary visor, a sub-plate and a spring. The auxiliary visor is attached to the sun-visor body slidably. The sub-plate is attached to the auxiliary visor to slide between a first position where the auxiliary visor receives the sub-plate and a second position where the sub-plate is withdrawn from the auxiliary visor. The spring urges the sub-plate toward the second position. The spring includes a base and two arm portions continuous to the base. The center portion of a spring wire forms the base of the spring. The two arm portions are bent to cross each other. A center portion of the base is convex toward an intersection of the two arm portions. The base abuts against one of the auxiliary visor and the sub-plate. The two arm portions abut against the other to urge the other elastically.
    Type: Application
    Filed: October 11, 2005
    Publication date: April 13, 2006
    Applicants: PIOLAX, INC, KASAI KOGYO CO., LTD.
    Inventors: Yasushi Kumakawa, Yoshiaki Enma
  • Patent number: D889253
    Type: Grant
    Filed: April 19, 2018
    Date of Patent: July 7, 2020
    Assignee: PIOLAX, INC.
    Inventors: Kenichi Makino, Yasushi Kumakawa