Patents by Inventor Youichi Hanakawa

Youichi Hanakawa 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: 8677631
    Abstract: A pair of scissors includes a pair of plate-shaped blades respectively formed by press working. Each of the blades pairing up with each other includes an edge line portion for sliding against the other blade and a recessed portion which is formed at a portion adjacent to the edge line portion with a difference in level from the edge line portion, which is away from a blade back face of the other blade in a thickness direction, and which has a bottom face substantially parallel to a blade back face of the edge line portion.
    Type: Grant
    Filed: March 31, 2010
    Date of Patent: March 25, 2014
    Assignee: Kokuyo Co., Ltd.
    Inventor: Youichi Hanakawa
  • Patent number: 8555512
    Abstract: Each of handles of a pair of scissors includes a hard core member and a soft member softer than the core member and including a contact face portion with which a finger of a user comes in contact, a bottomed recessed hole portion adjacent to the contact face portion and thinner than portions around it, and a through hole portion continuous with the bottomed recessed hole portion. When the user inserts and removes his/her fingers into and from finger rings, the contact face portions escape while compressing the through hole portions and the contact face portions tilt by using the bottomed recessed hole portions as fulcrums. Moreover, the bottomed recessed hole portions and the through hole portions continuous with each other are molded, which allows an elastic deformation property and a shape retaining property of the contact face portions to go together and also contributes to durability of the soft members including the contact face portions.
    Type: Grant
    Filed: March 31, 2010
    Date of Patent: October 15, 2013
    Assignee: Kokuyo Co., Ltd.
    Inventor: Youichi Hanakawa
  • Publication number: 20100263216
    Abstract: In a pair of scissors including a movable blade and a static blade as a pair of plate-shaped blades respectively formed by press working, the movable blade and the static blade include edge line portions for sliding against the other blades and recessed portions which are formed at portions adjacent to the edge line portions with differences in level from the edge line portions, which are away from blade back faces of the other blades in a thickness direction, and which have bottom faces substantially parallel to blade back faces of the edge line portions.
    Type: Application
    Filed: March 31, 2010
    Publication date: October 21, 2010
    Applicant: KOKUYO CO., LTD.
    Inventor: Youichi Hanakawa
  • Publication number: 20100263215
    Abstract: Each of handles of a pair of scissors includes a hard core member and a soft member softer than the core member and including a contact face portion with which a finger of a user comes in contact, a bottomed recessed hole portion adjacent to the contact face portion and thinner than portions around it, and a through hole portion continuous with the bottomed recessed hole portion. When the user inserts and removes his/her fingers into and from finger rings, the contact face portions escape while compressing the through hole portions and the contact face portions tilt by using the bottomed recessed hole portions as fulcrums. Moreover, the bottomed recessed hole portions and the through hole portions continuous with each other are molded, which allows an elastic deformation property and a shape retaining property of the contact face portions to go together and also contributes to durability of the soft members including the contact face portions.
    Type: Application
    Filed: March 31, 2010
    Publication date: October 21, 2010
    Applicant: KOKUYO CO., LTD.
    Inventor: Youichi Hanakawa
  • Publication number: 20020160183
    Abstract: A sticker is formed by providing a first adhesive layer 12 on one end side of one face of a sheet piece 11 formed in a substantially square plane shape in a plan view and a second adhesive layer 13 on the other end side of the sheet piece 11. The second adhesive layer 13 is formed at an inward distance of about 15 mm or more from the other end of the sheet piece 11 to form a gap S of such a size that the sheet piece 11 can be attached flat on a face AS of an object A to which the sheet piece 11 is to be attached and that the sheet piece 11 can be easily peeled off.
    Type: Application
    Filed: February 12, 2002
    Publication date: October 31, 2002
    Applicant: KOKUYO CO., LTD.
    Inventor: Youichi Hanakawa