Patents by Inventor Kazuhiro Morisugi

Kazuhiro Morisugi 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: 11440208
    Abstract: A blade of a hair removal device according to the present disclosure includes a fixed blade having a fixed blade bar and a fixed blade groove, and a movable blade having a movable blade bar and a movable blade groove. The movable blade bar is formed such that a bar width in a reciprocating sliding direction is larger than a groove width of the fixed blade groove in the reciprocating sliding direction. In the fixed blade bar, a bar width in the reciprocating sliding direction is larger than a groove width of the movable blade groove in the reciprocating sliding direction. In the fixed blade groove and the movable blade groove, a blade groove angle at least on an opening side is a positive angle with an intersection positioned on a depth side. This configuration provides a blade of a hair removal device capable of suppressing deformation.
    Type: Grant
    Filed: December 9, 2020
    Date of Patent: September 13, 2022
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Shigetoshi Sakon, Kazuhiro Morisugi
  • Patent number: 11420347
    Abstract: Trimmer blade includes stationary blade that includes a plurality of first unit blades, and movable blade that includes a plurality of second unit blades and slides relative to stationary blade. A leading end of first unit blade includes projection that projects from first sliding surface of first unit blade. A leading end face of one of the plurality of second unit blades touches projection.
    Type: Grant
    Filed: February 14, 2019
    Date of Patent: August 23, 2022
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Shigetoshi Sakon, Kazuhiro Morisugi
  • Publication number: 20210252725
    Abstract: A blade of a hair removal device according to the present disclosure includes a fixed blade having a fixed blade bar and a fixed blade groove, and a movable blade having a movable blade bar and a movable blade groove. The movable blade bar is formed such that a bar width in a reciprocating sliding direction is larger than a groove width of the fixed blade groove in the reciprocating sliding direction. In the fixed blade bar, a bar width in the reciprocating sliding direction is larger than a groove width of the movable blade groove in the reciprocating sliding direction. In the fixed blade groove and the movable blade groove, a blade groove angle at least on an opening side is a positive angle with an intersection positioned on a depth side. This configuration provides a blade of a hair removal device capable of suppressing deformation.
    Type: Application
    Filed: December 9, 2020
    Publication date: August 19, 2021
    Inventors: Shigetoshi SAKON, Kazuhiro MORISUGI
  • Publication number: 20210039271
    Abstract: Trimmer blade includes stationary blade that includes a plurality of first unit blades, and movable blade that includes a plurality of second unit blades and slides relative to stationary blade. A leading end of first unit blade includes projection that projects from first sliding surface of first unit blade. A leading end face of one of the plurality of second unit blades touches projection.
    Type: Application
    Filed: February 14, 2019
    Publication date: February 11, 2021
    Inventors: Shigetoshi SAKON, Kazuhiro MORISUGI
  • Patent number: 8484849
    Abstract: A hair remover including a cylindrical outer blade and an inner blade rotatably accommodated in the outer blade. The outer blade includes a side wall, a bend, and an upper wall that are continuous with each other. A first cutting edge is arranged on the upper wall and the side wall. The inner blade includes a second cutting edge arranged so as to clip hair in cooperation with the first cutting edge of the outer blade. The hair remover further includes a relief arranged on at least either one of the inner blade and the outer blade to prevent contact between the inner blade and the bend of the outer blade.
    Type: Grant
    Filed: September 16, 2010
    Date of Patent: July 16, 2013
    Assignee: Panasonic Corporation
    Inventors: Kazuhiro Morisugi, Toshio Ikuta
  • Patent number: 8484850
    Abstract: A hair remover including an outer blade and an inner blade accommodated in the outer blade. The outer blade includes a cylindrical side wall, an upper wall, and a bend connecting the side wall and the upper wall. Straight upper cutting edges and side cutting edges are formed by slits extending from the upper wall to an upper part of the side wall. The inner blade includes a straight upper cutting edge, which is formed at a location corresponding to the upper cutting edges of the upper blade, and a straight side cutting edge, which is formed at a location corresponding to the side cutting edges of the outer blade. The outer blade and the inner blade are formed so as to clip body hair through cooperation between the straight side cutting edges and cooperation between the straight upper cutting edges.
    Type: Grant
    Filed: September 23, 2010
    Date of Patent: July 16, 2013
    Assignee: Panasonic Corporation
    Inventors: Kazuhiro Morisugi, Toshio Ikuta
  • Patent number: 8146254
    Abstract: A hair clipper (1) comprises a replaceable blade block (3) having a comb-shaped stationary blade (5) and a comb-shaped moving blade (6) which is reciprocally movable in a widthwise direction of the hair clipper (1), a main body (2) having a motor (8) and a driving member (14) to transfer and to transmit a driving force of the motor (8) to reciprocal motion of the moving blade (6), and to which the blade block (3) is detachably attached, and a pressing mechanism (4) to press the moving blade (6) toward the stationary blade (5). The pressing mechanism (4) is provided on the main body (2) and has at least one contact portion (4b) which reciprocally moves in synchronism with a reciprocal motion of the moving blade (6).
    Type: Grant
    Filed: June 13, 2007
    Date of Patent: April 3, 2012
    Assignee: Panasonic Electric Works Co., Ltd.
    Inventors: Kazuhiro Morisugi, Seiko Yabuuchi, Toshio Ikuta, Hitoshi Ogawa
  • Patent number: 8024862
    Abstract: A hair clipper has a blade block, which includes a fixed blade, a movable blade overlapped with the fixed blade to make sliding contact with the fixed blade, a pressing spring applying a pressing load to maintain a uniform contact pressure between the fixed blade and the movable blade, and a blade base for receiving and retaining the fixed blade and the movable blade and the pressing spring. The blade base has a blade holder retaining the fixed blade and the movable blade and a blade cover attached to the blade holder to cover the fixed blade and the movable blade. Further, the blade holder has a primary retainer member holding end portions of the pressing spring and the blade cover has a secondary retainer member pressing the end portions of the pressing spring in a direction in which the pressing spring is retained by the primary retainer member.
    Type: Grant
    Filed: December 6, 2007
    Date of Patent: September 27, 2011
    Assignee: Panasonic Electric Works Co., Ltd.
    Inventors: Kazuhiro Morisugi, Toshio Ikuta
  • Publication number: 20110072668
    Abstract: A hair remover including a cylindrical outer blade and an inner blade rotatably accommodated in the outer blade. The outer blade includes a side wall, a bend, and an upper wall that are continuous with each other. A first cutting edge is arranged on the upper wall and the side wall. The inner blade includes a second cutting edge arranged so as to clip hair in cooperation with the first cutting edge of the outer blade. The hair remover further includes a relief arranged on at least either one of the inner blade and the outer blade to prevent contact between the inner blade and the bend of the outer blade.
    Type: Application
    Filed: September 16, 2010
    Publication date: March 31, 2011
    Applicant: Panasonic Electric Works Co., LTD.
    Inventors: Kazuhiro Morisugi, Toshio Ikuta
  • Publication number: 20110072669
    Abstract: A hair remover including an outer blade and an inner blade accommodated in the outer blade. The outer blade includes a cylindrical side wall, an upper wall, and a bend connecting the side wall and the upper wall. Straight upper cutting edges and side cutting edges are formed by slits extending from the upper wall to an upper part of the side wall. The inner blade includes a straight upper cutting edge, which is formed at a location corresponding to the upper cutting edges of the upper blade, and a straight side cutting edge, which is formed at a location corresponding to the side cutting edges of the outer blade. The outer blade and the inner blade are formed so as to clip body hair through cooperation between the straight side cutting edges and cooperation between the straight upper cutting edges.
    Type: Application
    Filed: September 23, 2010
    Publication date: March 31, 2011
    Applicant: Panasonic Electric Works Co., LTD.
    Inventors: Kazuhiro Morisugi, Toshio Ikuta
  • Patent number: 7762001
    Abstract: A hair clipper includes three blade blocks each including comb-like blades mutually overlapped for making sliding contact with each other, each blade block having a skin contact surface parallel to a projecting direction of the comb-like blades; and a main body including a drive unit for reciprocating one of the comb-like blades. The blade blocks include first, second and third blade blocks. The second blade block has a skin surface contact angle between a longitudinal axis of the main body and the skin contact surface acute and greater than that of the first blade block. The third blade block has a skin surface contact angle same as that of the second blade block. The third blade block has a cutting width smaller than that of the first and second blade blocks. The main body includes an attachment unit for detachably attaching one of the blade blocks to the main body.
    Type: Grant
    Filed: December 21, 2007
    Date of Patent: July 27, 2010
    Assignee: Panasonic Electric Works Co., Ltd.
    Inventors: Kazuhiro Morisugi, Toshio Ikuta
  • Publication number: 20090320296
    Abstract: A hair trimmer blade unit includes a stationary blade and a movable blade, which includes movable blade pieces. Each movable blade piece includes a basal blade edge portion and a distal catch portion. The basal blade edge portion extends along a line inclined so that as the distal end of the movable blade piece become closer, the distance from the adjacent movable blade piece increases. The distal catch portion extends toward the adjacent movable blade piece from the line. The blade edge of each movable blade piece includes a saw-toothed portion formed so that as the distal end of the corresponding movable blade piece becomes closer, the distance from the adjacent movable blade pieces decreases in plural steps.
    Type: Application
    Filed: June 22, 2009
    Publication date: December 31, 2009
    Applicant: PANASONIC ELECTRIC WORKS, CO., LTD.
    Inventors: Kazuhiro MORISUGI, Makoto FUKUTANI, Jiro YOICHI, Toshio IKUTA, Takashi KOZAI, Hiroyuki OKADA
  • Publication number: 20080172885
    Abstract: A hair clipper includes three blade blocks each including comb-like blades mutually overlapped for making sliding contact with each other, each blade block having a skin contact surface parallel to a projecting direction of the comb-like blades; and a main body including a drive unit for reciprocating one of the comb-like blades. The blade blocks include first, second and third blade blocks. The second blade block has a skin surface contact angle between a longitudinal axis of the main body and the skin contact surface acute and greater than that of the first blade block. The third blade block has a skin surface contact angle same as that of the second blade block. The third blade block has a cutting width smaller than that of the first and second blade blocks. The main body includes an attachment unit for detachably attaching one of the blade blocks to the main body.
    Type: Application
    Filed: December 21, 2007
    Publication date: July 24, 2008
    Applicant: Matsushita Electric Works, Ltd.
    Inventors: Kazuhiro Morisugi, Toshio Ikuta
  • Patent number: 7401406
    Abstract: A main body of an inner blade is inserted into an inner blade insertion hole of an inner blade frame such that the main body can extend and retreat, a tip end cutting edge is pushed by a spring such that it comes into contact with an inner peripheral surface of a slit outer blade, the main body of the inner blade projecting outward from the inner blade insertion hole is bent rearward in a rotational direction, and the cutting edge of the inner blade is located rearward of the main body in the inner blade insertion hole in the rotational direction. With this configuration, the cutting edge does not fall forward in the rotational direction, and no gap is generated between the cutting edge and the inner peripheral surface of the slit outer blade.
    Type: Grant
    Filed: July 17, 2006
    Date of Patent: July 22, 2008
    Assignee: Matsushita Electric Works, Ltd.
    Inventors: Kazuhiro Morisugi, Toshio Ikuta, Yoshimichi Kosugi
  • Publication number: 20080134516
    Abstract: A hair clipper has a blade block, which includes a fixed blade, a movable blade overlapped with the fixed blade to make sliding contact with the fixed blade, a pressing spring applying a pressing load to maintain a uniform contact pressure between the fixed blade and the movable blade, and a blade base for receiving and retaining the fixed blade and the movable blade and the pressing spring. The blade base has a blade holder retaining the fixed blade and the movable blade and a blade cover attached to the blade holder to cover the fixed blade and the movable blade. Further, the blade holder has a primary retainer member holding end portions of the pressing spring and the blade cover has a secondary retainer member pressing the end portions of the pressing spring in a direction in which the pressing spring is retained by the primary retainer member.
    Type: Application
    Filed: December 6, 2007
    Publication date: June 12, 2008
    Applicant: Matsushita Electric Works, Ltd.
    Inventors: Kazuhiro Morisugi, Toshio Ikuta
  • Publication number: 20070289144
    Abstract: A hair clipper (1) comprises a replaceable blade block (3) having a comb-shaped stationary blade (5) and a comb-shaped moving blade (6) which is reciprocally movable in a widthwise direction of the hair clipper (1), a main body (2) having a motor (8) and a driving member (14) to transfer and to transmit a driving force of the motor (8) to reciprocal motion of the moving blade (6), and to which the blade block (3) is detachably attached, and a pressing mechanism (4) to press the moving blade (6) toward the stationary blade (5). The pressing mechanism (4) is provided on the main body (2) and has at least one contact portion (4b) which reciprocally moves in synchronism with a reciprocal motion of the moving blade (6).
    Type: Application
    Filed: June 13, 2007
    Publication date: December 20, 2007
    Applicant: MATSUSHITA ELECTRIC WORKS, LTD.
    Inventors: Kazuhiro MORISUGI, Seiko YABUUCHI, Toshio IKUTA, Hitoshi OGAWA
  • Publication number: 20070022605
    Abstract: A main body of an inner blade is inserted into an inner blade insertion hole of an inner blade frame such that the main body can extend and retreat, a tip end cutting edge is pushed by a spring such that it comes into contact with an inner peripheral surface of a slit outer blade, the main body of the inner blade projecting outward from the inner blade insertion hole is bent rearward in a rotational direction, and the cutting edge of the inner blade is located rearward of the main body in the inner blade insertion hole in the rotational direction. With this configuration, the cutting edge does not fall forward in the rotational direction, and no gap is generated between the cutting edge and the inner peripheral surface of the slit outer blade.
    Type: Application
    Filed: July 17, 2006
    Publication date: February 1, 2007
    Applicant: Matsushita Electric Works, Ltd.
    Inventors: Kazuhiro MORISUGI, Toshio IKUTA, Yoshimichi KOSUGI
  • Patent number: 6935029
    Abstract: A dry shaver has a shaving head and a trimmer unit both movably supported to a hand grip. The shaving head includes a drive element for driving a cutter for shaving. The trimmer unit has a cutter which is connected to the drive element for trimming. A mechanism is provided to interlock the trimmer unit and the shaving head for holding the shaving head in a fixed position relative to the hand grip when the trimmer is in the operative position.
    Type: Grant
    Filed: June 13, 2003
    Date of Patent: August 30, 2005
    Assignee: Matsushita Electric Works, Ltd.
    Inventors: Kazuhiro Morisugi, Masanobu Yamasaki
  • Patent number: 6490798
    Abstract: A blade block of a hair cutter including a fixed blade, a movable blade reciprocating with respect to the fixed blade, and a blade base to which the fixed blade and the movable blade are attached. The fixed blade and the movable blade are assembled with a reciprocating guide unit into a blade unit. The reciprocating guide unit guides the movable blade to reciprocate with respect to the fixed blade. The blade block include an insertion opening. A mounting unit is provided to mount the blade unit to the blade base by inserting the blade unit into the insertion opening so that a cutting edge is exposed to the outside of the blade block.
    Type: Grant
    Filed: January 25, 2001
    Date of Patent: December 10, 2002
    Assignee: Matsushita Electric Works, Ltd.
    Inventors: Kazuhiro Morisugi, Yuuji Yamagishi
  • Publication number: 20010009068
    Abstract: A blade block of a hair cutter including a fixed blade, a movable blade reciprocating with respect to the fixed blade, and a blade base to which the fixed blade and the movable blade are attached. The fixed blade and the movable blade are assembled with a reciprocating guide unit into a blade unit. The reciprocating guide unit guides the movable blade to reciprocate with respect to the fixed blade. The blade block include an insertion opening. A mounting unit is provided to mount the blade unit to the blade base by inserting the blade unit into the insertion opening so that a cutting edge is exposed to the outside of the blade block.
    Type: Application
    Filed: January 25, 2001
    Publication date: July 26, 2001
    Applicant: MATSUSHITA ELECTRIC WORKS, Ltd.
    Inventors: Kazuhiro Morisugi, Yuuji Yamagishi