Patents by Inventor Hisayuki Yoshizawa

Hisayuki Yoshizawa 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: 10378137
    Abstract: Regarding a method of a sewing process for a trim cover of a vehicle seat provided with a decorative band, conventionally, a decorative band made up of a covering and wadding is sewn to a member of a trim cover similarly made up of a covering and wadding. Because of this, an area where a decorative band is sewn has an increased thickness, causing discomfort when an occupant sits. To address this, in the example embodiment, a sewn covering is manufactured by sewing together coverings for a portion of a trim cover and a decorative band and sewing decorative stitching through the sewn ends, and then the sewn covering and wadding are overlaid on each other to sew their borders together. This makes it possible to reduce the thickness of an area where the decorative band is sewn and reduce the discomfort when an occupant sits.
    Type: Grant
    Filed: October 18, 2016
    Date of Patent: August 13, 2019
    Assignee: TACHI-S CO., LTD.
    Inventors: Hisayuki Yoshizawa, Motoshi Minegishi, Tsunaki Nishida
  • Publication number: 20170114485
    Abstract: Regarding a method of a sewing process for a trim cover of a vehicle seat provided with a decorative band, conventionally, a decorative band made up of a covering and wadding is sewn to a member of a trim cover similarly made up of a covering and wadding. Because of this, an area where a decorative band is sewn has an increased thickness, causing discomfort when an occupant sits. To address this, in the example embodiment, a sewn covering is manufactured by sewing together coverings for a portion of a trim cover and a decorative band and sewing decorative stitching through the sewn ends, and then the sewn covering and wadding are overlaid on each other to sew their borders together. This makes it possible to reduce the thickness of an area where the decorative band is sewn and reduce the discomfort when an occupant sits.
    Type: Application
    Filed: October 18, 2016
    Publication date: April 27, 2017
    Inventors: Hisayuki YOSHIZAWA, Motoshi MINEGISHI, Tsunaki NISHIDA
  • Publication number: 20150329022
    Abstract: To provide a headrest holder capable of preventing a wobble of a headrest and generating of a rattle. A headrest holder includes a main body loaded in a support bracket provided on a top portion of a seat back of a vehicle as well as provided with a stay insertion hole for inserting a stay of a headrest, in which the main body is integrally provided with an elastic tongue piece hanging downward, a free end portion of which protrudes into the stay insertion hole, an outer surface on a base end side of the tongue portion has a contact area making a surface contact with an inner wall surface of the support bracket, and the main body is loaded inside the support bracket so that the free end side of the tongue portion is separated from the inner wall surface of the support bracket.
    Type: Application
    Filed: May 13, 2014
    Publication date: November 19, 2015
    Inventors: Masato MIYAGUCHI, Hisayuki YOSHIZAWA
  • Patent number: 8991927
    Abstract: A headrest holder includes two tension pieces defined in the body portion thereof and a head portion. The two tension pieces, each including a protrudent portion, are spaced apart from each other along the longitudinal direction of that body portion, while being in a mutually facing relation, so that a headrest stay inserted in the headrest holder is retained between the two protrudent portions against wobbling. Further, those two tension pieces and either the head portion or a support bracket of seat frame establish three supportive points. Namely, the headrest holder inserted in the support bracket is retained against wobbling because the two protrudent portions and the headrest holder's neck portion closely contact the support bracket. Also, a headrest stay inserted in the headrest holder is retained against wobbling because the two protrudent portions and headrest holder's head portion closely contact the headrest stay.
    Type: Grant
    Filed: November 26, 2012
    Date of Patent: March 31, 2015
    Assignees: World Class Plastics, Inc., Tachi-S Engineering USA, Inc.
    Inventors: David Wisniewski, Masato Miyaguchi, Hisayuki Yoshizawa
  • Publication number: 20140145486
    Abstract: A headrest holder includes two tension pieces defined in the body portion thereof and a head portion. The two tension pieces, each including a protrudent portion, are spaced apart from each other along the longitudinal direction of that body portion, while being in a mutually facing relation, so that a headrest stay inserted in the headrest holder is retained between the two protrudent portions against wobbling. Further, those two tension pieces and either the head portion or a support bracket of seat frame establish three supportive points. Namely, the headrest holder inserted in the support bracket is retained against wobbling because the two protrudent portions and the headrest holder's neck portion closely contact the support bracket. Also, a headrest stay inserted in the headrest holder is retained against wobbling because the two protrudent portions and headrest holder's head portion closely contact the headrest stay.
    Type: Application
    Filed: November 26, 2012
    Publication date: May 29, 2014
    Inventors: David WISNIEWSKI, Masato MIYAGUCHI, Hisayuki YOSHIZAWA
  • Patent number: 7828387
    Abstract: A headrest storage recession of seat back in an upside-recessed-and-headrest-storage type of seat has, provided at the backward side thereof, an integral combination of a cover element and an upward extension of a back board disposed behind the seat back. Namely, the cover element is connected continuously with the back board upward extension, without any connection line therebetween. A thin hinge portion is defined in boundary between those cover element and upward extension, and the cover element is folded relative to such thin hinge portion and securely attached to the upward extension, thereby constituting a backward wall of the headrest storage recession.
    Type: Grant
    Filed: December 28, 2007
    Date of Patent: November 9, 2010
    Assignee: Tachi-S Co., Ltd.
    Inventor: Hisayuki Yoshizawa
  • Publication number: 20090167064
    Abstract: A headrest storage recession of seat back in an upside-recessed-and-headrest-storage type of seat has, provided at the backward side thereof, an integral combination of a cover element and an upward extension of a back board disposed behind the seat back. Namely, the cover element is connected continuously with the back board upward extension, without any connection line therebetween. A thin hinge portion is defined in boundary between those cover element and upward extension, and the cover element is folded relative to such thin hinge portion and securely attached to the upward extension, thereby constituting a backward wall of the headrest storage recession.
    Type: Application
    Filed: December 28, 2007
    Publication date: July 2, 2009
    Applicant: Tachi-S Co., Ltd.
    Inventor: Hisayuki YOSHIZAWA