Patents by Inventor Ritsusou Ishisako

Ritsusou Ishisako 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: 10609895
    Abstract: A pet fence according to one aspect of the present invention includes: a plurality of vertical frames arranged in an annular shape and inclined toward an inner side; a side surface sheet including a mesh portion and stretched so as to extend between the adjacent vertical frames; and a non-stretchable bottom surface sheet located at a bottom surface of the pet fence. Lower end portions of the vertical frames are restricted from moving toward an outer side by being fixed to the non-stretchable bottom surface sheet.
    Type: Grant
    Filed: September 1, 2017
    Date of Patent: April 7, 2020
    Assignee: NIHON IKUJI CO., LTD.
    Inventor: Ritsusou Ishisako
  • Publication number: 20200045930
    Abstract: A pet fence according to one aspect of the present invention includes: a plurality of vertical frames arranged in an annular shape and inclined toward an inner side; a side surface sheet including a mesh portion and stretched so as to extend between the adjacent vertical frames; and a non-stretchable bottom surface sheet located at a bottom surface of the pet fence. Lower end portions of the vertical frames are restricted from moving toward an outer side by being fixed to the non-stretchable bottom surface sheet.
    Type: Application
    Filed: September 1, 2017
    Publication date: February 13, 2020
    Inventor: Ritsusou Ishisako
  • Patent number: 9776535
    Abstract: An infant restraint system includes: a back rest portion; a seat portion connected to a lower portion of the back rest portion swingably between an in-use and storage position; upper side position regulating portions formed on a left and right portion of an upper portion of the back rest surface; lower side position regulating portions formed on a left portion and a right portion of the back rest surface at a position below the upper side position regulating portions; an upper body belt portion which includes the pair of shoulder belts and a pair of tongue plates attached to the pair of shoulder belts; a side guard portion respectively extending frontward from a left edge portion and a right edge portion of a lower portion of the back rest portion; and a crotch belt portion having a buckle body which is detachably engaged with the pair of tongue plates.
    Type: Grant
    Filed: March 27, 2014
    Date of Patent: October 3, 2017
    Assignee: Nihon Ikuji Co., LTD
    Inventor: Ritsusou Ishisako
  • Publication number: 20140346826
    Abstract: An infant restraint system includes: a back rest portion; a seat portion connected to a lower portion of the back rest portion swingably between an in-use and storage position; upper side position regulating portions formed on a left and right portion of an upper portion of the back rest surface; lower side position regulating portions formed on a left portion and a right portion of the back rest surface at a position below the upper side position regulating portions; an upper body belt portion which includes the pair of shoulder belts and a pair of tongue plates attached to the pair of shoulder belts; a side guard portion respectively extending frontward from a left edge portion and a right edge portion of a lower portion of the back rest portion; and a crotch belt portion having a buckle body which is detachably engaged with the pair of tongue plates.
    Type: Application
    Filed: March 27, 2014
    Publication date: November 27, 2014
    Inventor: Ritsusou Ishisako