Patents by Inventor Hirozumi Fujiwara

Hirozumi Fujiwara 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: 11376884
    Abstract: A binder forming a booklet by bundling end portions of a plurality of sheets of paper such that paper addition or removal is possible includes a spread-shaped front cover member configured for sandwiching a bundle of the plurality of sheets of paper, a long cover member having an opening portion along a back portion of the front cover member, and a plurality of clips arranged so as to be configured for moving forward and backward in the opening portion of the cover member and having a pair of holding pieces and claw portions respectively extending inward from tips of the holding pieces. Through holes through which the claw portions of the plurality of clips are respectively inserted are formed in each of front and back covers of the front cover member.
    Type: Grant
    Filed: April 8, 2021
    Date of Patent: July 5, 2022
    Inventors: Yuhei Imai, Yuzo Hayashi, Hirozumi Fujiwara
  • Publication number: 20210323340
    Abstract: A binder forming a booklet by bundling end portions of a plurality of sheets of paper such that paper addition or removal is possible includes a spread-shaped front cover member configured for sandwiching a bundle of the plurality of sheets of paper, a long cover member having an opening portion along a back portion of the front cover member, and a plurality of clips arranged so as to be configured for moving forward and backward in the opening portion of the cover member and having a pair of holding pieces and claw portions respectively extending inward from tips of the holding pieces. Through holes through which the claw portions of the plurality of clips are respectively inserted are formed in each of front and back covers of the front cover member.
    Type: Application
    Filed: April 8, 2021
    Publication date: October 21, 2021
    Inventors: Yuhei IMAI, Yuzo HAYASHI, Hirozumi FUJIWARA
  • Patent number: 8245359
    Abstract: A spring part without increasing the total surface of the clip body. A part of the clip body is cut out as cutout part which is bent to form the spring part. The cutout part which is a part of the clip body is utilized as the spring part.
    Type: Grant
    Filed: December 7, 2007
    Date of Patent: August 21, 2012
    Assignee: Tokyo Kinzoku Industry Co., Ltd.
    Inventors: Shigeki Fujihara, Hirozumi Fujiwara
  • Publication number: 20100037439
    Abstract: The present invention provides a spring part without increasing the total surface of the clip body. A part of the clip body is cut out as cutout part which is bent to form the spring part. The cutout part which is a part of the clip body is utilized as the spring part.
    Type: Application
    Filed: December 7, 2007
    Publication date: February 18, 2010
    Applicant: Tokyo Kinzoku Industry Co., Ltd
    Inventors: Shigeki Fujihara, Hirozumi Fujiwara
  • Patent number: 7100247
    Abstract: A clip fixing structure in which there is no possibility for producing a frictional scratch at an outer surface of a cylinder when it is fixed. The fixing section formed at the rear part of the clip section is bent along widthwise opposing sides and form to face at the rear surface as seen in a front elevational view of the clip section, and the fixing piece sections are provided with the engaging sections. Then, the clip set section formed at the cylinder is adapted to a forward or rearward size and a width size of the inner space of at least the fixing section, its part is protruded in a protruded shape becoming the fixing reference point where the fixing section is fitted, and both side surfaces of the clip set section corresponding to the engaging sections are provided with the holding sections for fixing and holding the fixing section to the clip set section.
    Type: Grant
    Filed: October 3, 2003
    Date of Patent: September 5, 2006
    Assignee: Tokyo Kinzoku Industry Co., Ltd.
    Inventors: Shigeki Fujihara, Kenji Kosuge, Hirozumi Fujiwara
  • Publication number: 20040099777
    Abstract: A clip fixing structure in which there is no possibility for producing a frictional scratch at an outer surface of a cylinder when it is fixed, its fixing is conveniently carried out, its productivity is improved and at the same time a loss of material is restricted, and it can be sufficiently adapted for its fixing to a high-class writing instrument.
    Type: Application
    Filed: October 3, 2003
    Publication date: May 27, 2004
    Applicant: TOKYO KINZOKU INDUSTRY CO., LTD.
    Inventors: Shigeki Fujihara, Kenji Kosuge, Hirozumi Fujiwara
  • Patent number: 5539963
    Abstract: A clip body having upper and lower clamping pieces which flare continuously and from both ends of a bending portion in a desired width and a pressing cover having upper and lower clamping pieces continuously extending from both ends of a bending portion which is formed so as to provide a desired width, in which tops of the upper and lower clamping pieces are to be engaged with upper and lower parts close to the bending portion of said clip body, and a width formed between the tops being narrower than the maximum width formed between the upper and lower clamping portions of the clip body and wherein the pressing cover being slidably provided on the outer portions of the clip body so that both the upper and lower clamping pieces of the clip body approach each other in a pressing state.
    Type: Grant
    Filed: December 13, 1994
    Date of Patent: July 30, 1996
    Assignee: Tokyo Kinzoku Industry Co., Ltd.
    Inventors: Hirozumi Fujiwara, Toshimichi Tani
  • Patent number: D975777
    Type: Grant
    Filed: April 1, 2021
    Date of Patent: January 17, 2023
    Assignee: KENKOUSYA LTD.
    Inventors: Yuhei Imai, Yuzo Hayashi, Hirozumi Fujiwara
  • Patent number: D982074
    Type: Grant
    Filed: April 1, 2021
    Date of Patent: March 28, 2023
    Assignee: KENKOUSYA LTD.
    Inventors: Yuhei Imai, Yuzo Hayashi, Hirozumi Fujiwara