Patents by Inventor Hiroyuki Nakasuka

Hiroyuki Nakasuka 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).

  • Publication number: 20100154220
    Abstract: A razor head 2 is provided with a blade member 3 having a base and a blade body 4 on the base, a blade base member 5 arranged on the back side of the razor head 2, and a top member 6 arranged on the front side of the razor head 2. The blade member 3 is fitted between the blade base member 5 and the top member 6. The base of the blade member 3 is supported on the blade base member 5. A cutting edge 4a of the blade body 4 is exposed at the top member 6. The base is provided with a pair of leaf springs arranged between the blade base member 5 and the top member 6. A back opening 19 is disposed on the back side of the razor head 2 between both leaf springs, and a front opening 20 is disposed on the front side of the razor head 2. The base is provided with a debris discharge hole 18 between the front opening 20 and the back opening 19.
    Type: Application
    Filed: February 14, 2007
    Publication date: June 24, 2010
    Applicant: KAI R&D CENTER CO., LTD.
    Inventor: Hiroyuki Nakasuka
  • Publication number: 20100154222
    Abstract: A razor having a simplified structure is provided. This oscillating razor is provided with a razor head. The razor head is provided with a blade member composed of a base having a blade-body supporting portion and a plurality of blade bodies, a blade base member located on the back side of the razor head, and a top member located on the front side of the razor head. The blade member is fitted between the blade base member and the top member. The base is supported on the blade base member and the cutting edge of the blade body is exposed outward at the top member. Each of the blade bodies is placed on the blade-body supporting portion, and welded portions fixed to each other by welding from the side corresponding to the blade-body supporting portion are formed on the blade body and the blade-body supporting portion.
    Type: Application
    Filed: February 14, 2007
    Publication date: June 24, 2010
    Applicant: KAI R&D CENTER CO.,LTD.
    Inventor: Hiroyuki Nakasuka
  • Publication number: 20090307908
    Abstract: A shaving aid member pivots in a predetermined range from an initial position to a pivot position with respect to a razor head against elastic force of leaf springs. In the shaving aid member, a mounting portion of a base member is aligned with the razor head and two arm portions of the base member are invisible from the front side of the razor head. This reduces the space occupied by the arm portions outside the outer peripheral portion of the razor head. As a result, in a razor with a shaving aid, comfort in use is enhanced. Further, the razor is compact-sized since the surface area of the front side of the portion outlined by the razor head and the shaving aid member is decreased.
    Type: Application
    Filed: October 26, 2007
    Publication date: December 17, 2009
    Inventor: Hiroyuki Nakasuka
  • Publication number: 20090260238
    Abstract: A head portion of a holder incorporates a pair of support arms, which oscillatably support a razor head, and a pusher, which is pressed against the razor head. The razor head includes a blade body with a cutting edge. The razor head is supported by the support arms at both ends in the extending direction of the cutting edge of the blade body. The razor head includes a pair of supported portions and a pair of contact portions. The support arms include first outer arm portions, which support the supported portions such that the razor head is rotatable in an oscillating direction. The pusher includes a pair of second outer arm portions formed on both ends in the extending direction of the cutting edge of the blade body. The second outer arm portions are pressed against the contact portions. At least part of each second outer arm portion is arranged in a region extending through the associated first outer arm portions in a direction perpendicular to a plane containing a contact direction of the pusher.
    Type: Application
    Filed: August 29, 2006
    Publication date: October 22, 2009
    Inventor: Hiroyuki Nakasuka
  • Publication number: 20080250646
    Abstract: In a razor including a razor head 16 having blade bodies 19, a shaving aid member 27 is provided on the razor head 16. The shaving aid member 27 reciprocates between an initial position and an end position, which is separate from the initial position by a predetermined range. The shaving aid member 27 is urged toward the initial position by elastic bodies 31.
    Type: Application
    Filed: August 29, 2006
    Publication date: October 16, 2008
    Inventor: Hiroyuki Nakasuka
  • Patent number: 7191523
    Abstract: A safety razor with a plurality of blades comprising a head provided with a plurality of vertically adjacent blades, which do not wholly overlap one another, and blade support parts supporting the respective blades apart from one another in order to retain the respective blades at spaces, and wherein non-overlapping portions, which do not overlap one another, are formed on supported portions of the respective blades and the blade support parts are held to the non-overlapping portions of the blades to support the blades. A support structure can be divided into two members to be manufactured and mechanically assembled, metal molds are not so much complicated, and mechanical assembly of blades is made possible to prevent degradation in yield.
    Type: Grant
    Filed: July 16, 2002
    Date of Patent: March 20, 2007
    Assignee: Kai R&D Center Co., Ltd
    Inventors: Hiroaki Miyazaki, Hiroyuki Nakasuka
  • Publication number: 20040177511
    Abstract: A safety razor with a plurality of blades comprising a head provided with a plurality of vertically adjacent blades, which do not wholly overlap one another, and blade support parts supporting the respective blades apart from one another in order to retain the respective blades at spaces, and wherein non-overlapping portions, which do not overlap one another, are formed on supported portions of the respective blades and the blade support parts are held to the non-overlapping portions of the blades to support the blades. A support structure can be divided into two members to be manufactured and mechanically assembled, metal molds are not so much complicated, and mechanical assembly of blades is made possible to prevent degradation in yield.
    Type: Application
    Filed: January 13, 2004
    Publication date: September 16, 2004
    Inventors: Hiroaki Miyazaki, Hiroyuki Nakasuka
  • Patent number: D443111
    Type: Grant
    Filed: June 2, 1999
    Date of Patent: May 29, 2001
    Assignee: Kai R & D Center Co., Ltd.
    Inventor: Hiroyuki Nakasuka
  • Patent number: D516243
    Type: Grant
    Filed: June 1, 2004
    Date of Patent: February 28, 2006
    Assignee: Kai R & D Center Co., Ltd.
    Inventor: Hiroyuki Nakasuka
  • Patent number: D590996
    Type: Grant
    Filed: August 7, 2008
    Date of Patent: April 21, 2009
    Assignee: Kai R & D Center Co., Ltd.
    Inventor: Hiroyuki Nakasuka
  • Patent number: D499843
    Type: Grant
    Filed: May 20, 2003
    Date of Patent: December 14, 2004
    Assignee: Kai R&D Center Co., Ltd.
    Inventor: Hiroyuki Nakasuka
  • Patent number: D593250
    Type: Grant
    Filed: June 26, 2008
    Date of Patent: May 26, 2009
    Assignee: Kai R & D Center Co., Ltd.
    Inventor: Hiroyuki Nakasuka
  • Patent number: D611654
    Type: Grant
    Filed: June 26, 2008
    Date of Patent: March 9, 2010
    Assignee: Kai R & D Center Co., Ltd.
    Inventor: Hiroyuki Nakasuka