Patents by Inventor Makoto Fukutani

Makoto Fukutani 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: 9527219
    Abstract: A height dimension D1 of a head section 4 is smaller than a front-back dimension D2 of the head section 4. The head section 4 has therein a linear actuator 12 as a drive source. Inner blades 13 are coupled to a drive coupling section protruding form an actuator main section. A height dimension of the actuator main section is smaller than a front-back dimension of the actuator main section.
    Type: Grant
    Filed: September 21, 2010
    Date of Patent: December 27, 2016
    Assignee: Panasonic Intellectual Property Management Co., Ltd.
    Inventors: Jyuzaemon Iwasaki, Makoto Fukutani, Hiroaki Shimizu, Toshio Ikuta
  • Patent number: 9108325
    Abstract: An electric shaver includes: a main body; an outer blade provided to an end of the main body and having a blade hole defined by a bar; and an inner blade provided inward of the outer blade and configured to reciprocate in a longitudinal direction of the outer blade to cut hair in the blade hole with the outer blade. The bar has a hair raising portion coming in contact with hair upon movement of the outer blade on a skin surface to raise hair up from the skin surface. A contact pressure on the skin surface to be exerted by the outer blade in a first portion of the outer blade is greater than that in a second portion of the outer blade. Hair raising performance in raising hair up from the skin surface in the first portion is smaller than hair raising performance in the second portion.
    Type: Grant
    Filed: January 19, 2011
    Date of Patent: August 18, 2015
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Shigetoshi Sakon, Kenji Narita, Jyuzaemon Iwasaki, Makoto Fukutani, Hiroaki Shimizu, Takeshi Shiba
  • Patent number: 8806763
    Abstract: An electric shaver including a hand grip 10 configured to be gripped by a user's hand, and a blade head 20 provided on an upper end of the hand grip. The blade head carries at least one shaving unit 50 comprising an outer blade foil 70 and an inner blade 80 driven in a shearing engagement manner with the outer blade foil. The outer blade foil has a plurality of holes in which hairs are introduced. The outer blade foil is elongated and has a length, and is curved along a width direction to form a generally C-shaped cross section, and is curved convexly and uniformly along its length to have a longitudinal curved outline. A radius of curvature of the longitudinal curved outline is 150 mm to 350 mm.
    Type: Grant
    Filed: January 16, 2013
    Date of Patent: August 19, 2014
    Assignee: Panasonic Corporation
    Inventors: Takeshi Shiba, Nariyoshi Nakamura, Masaaki Sato, Tomoyuki Inoue, Shunsuke Komori, Makoto Fukutani
  • Patent number: 8713802
    Abstract: A hair-clipper includes a stationary blade and a movable blade. The comb projections of the stationary blade include a skin-contact surface which abuts against skin, and a slide surface with which the comb projections of the movable blade come into slide contact. Further, the main body of the stationary blade includes an opposed surface which is opposed to a plane including the skin-contact surface, and a shortest distance between the opposed surface and the plane including the skin-contact surface is equal to or greater than a distance between the plane including the skin-contact surface and the comb projection of the movable blade.
    Type: Grant
    Filed: August 21, 2008
    Date of Patent: May 6, 2014
    Assignee: Panasonic Corporation
    Inventors: Makoto Fukutani, Toshio Ikuta, Jiro Inaba
  • Patent number: 8479400
    Abstract: A hair clipper includes a comb-like fixed blade and movable blade having a plurality of blade pieces arranged in parallel. The fixed blade and the movable blade is overlapped with each other and the movable blade is reciprocatively slid with respect to the fixed blade in an arrangement direction of the blade pieces. Each blade piece of the movable blade has blade edges formed at both sides thereof, each blade edge being formed with a leading rectilinear part and a basal rectilinear part; the leading rectilinear part and the basal rectilinear part are inclined with respect to the blade edges formed at both sides of each blade piece of the fixed blade by an acute included angle ?; and each blade edge of the movable blade has a rake surface facing an opposite side to the fixed blade.
    Type: Grant
    Filed: August 28, 2007
    Date of Patent: July 9, 2013
    Assignee: Panasonic Corporation
    Inventors: Makoto Fukutani, Toshio Ikuta
  • Publication number: 20120151773
    Abstract: A height dimension D1 of a head section 4 is smaller than a front-back dimension D2 of the head section 4. The head section 4 has therein a linear actuator 12 as a drive source. Inner blades 13 are coupled to a drive coupling section protruding form an actuator main section. A height dimension of the actuator main section is smaller than a front-back dimension of the actuator main section.
    Type: Application
    Filed: September 21, 2010
    Publication date: June 21, 2012
    Applicant: PANASONIC CORPORATION
    Inventors: Jyuzaemon Iwasaki, Makoto Fukutani, Hiroaki Shimizu, Toshio Ikuta
  • Patent number: 8176637
    Abstract: The hair clipper comprises comb-like fixed blade and movable blade each having a plurality of comb-teeth each provided at its both sides with blades, in which the movable blade is reciprocated with respect to the fixed blade in an arrangement direction of the comb-teeth to cut hair, the fixed blade or the movable blade is slid in a projecting direction of the comb-teeth to adjust cutting height, wherein a tip of each comb-tooth of the fixed blade is provided with a guide projection for introducing hair, the guide projection is tapered with an inclination angle which is larger than an inclination angle of the comb-tooth with respect to projecting direction of blades on both sides of the comb-tooth.
    Type: Grant
    Filed: August 22, 2006
    Date of Patent: May 15, 2012
    Assignee: Panasonic Corporation
    Inventors: Makoto Fukutani, Toshio Ikuta, Jiro Inaba
  • Publication number: 20110179648
    Abstract: An electric shaver includes: a main body; an outer blade provided to an end of the main body and having a blade hole defined by a bar; and an inner blade provided inward of the outer blade and configured to reciprocate in a longitudinal direction of the outer blade to cut hair in the blade hole with the outer blade. The bar has a hair raising portion coming in contact with hair upon movement of the outer blade on a skin surface to raise hair up from the skin surface. A contact pressure on the skin surface to be exerted by the outer blade in a first portion of the outer blade is greater than that in a second portion of the outer blade. Hair raising performance in raising hair up from the skin surface in the first portion is smaller than hair raising performance in the second portion.
    Type: Application
    Filed: January 19, 2011
    Publication date: July 28, 2011
    Applicant: PANASONIC ELECTRIC WORKS CO., LTD.
    Inventors: Shigetoshi SAKON, Kenji NARITA, Jyuzaemon IWASAKI, Makoto FUKUTANI, Hiroaki SHIMIZU, Takeshi SHIBA
  • Publication number: 20100126022
    Abstract: An electric shaver including a hand grip 10 configured to be gripped by a user' s hand, and a blade head 20 provided on an upper end of the hand grip. The blade head carries at least one shaving unit 50 comprising an outer blade foil 70 and an inner blade 80 driven in a shearing engagement manner with the outer blade foil. The outer blade foil has a plurality of holes in which hairs are introduced. The outer blade foil is elongated and has a length, and is curved along a width direction to form a generally C-shaped cross section, and is curved convexly and uniformly along its length to have a longitudinal curved outline. A radius of to curvature of the longitudinal curved outline is 150 mm to 350 mm.
    Type: Application
    Filed: August 31, 2009
    Publication date: May 27, 2010
    Applicant: Matsushita Electric Works, Ltd.
    Inventors: Takeshi Shiba, Nariyoshi Nakamura, Masaaki Sato, Tomoyuki Inoue, Shunsuke Komori, Makoto Fukutani
  • Publication number: 20100018057
    Abstract: An electric shaver includes a plurality of outer cutter frames connected to an electric shaver main body, the outer cutter frames accommodating therein short hair cutter blocks and long hair cutter blocks. Each of the outer cutter frames is floatably and swingably movable with respect to the electric shaver main body according to an amount of pressure applied to the outer cutter frame by a skin.
    Type: Application
    Filed: October 8, 2009
    Publication date: January 28, 2010
    Inventors: Makoto FUKUTANI, 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: 20090056143
    Abstract: A hair-clipper comprising a stationary blade having a main body provided with a plurality of comb projections having blades formed at their both sides, and a movable blade that has a main body having a plurality of comb projections having blades formed at their both sides and that comes into slide contact with the stationary blade, wherein the comb projections of the stationary blade include a skin-contact surface which abuts against a skin, and a slide surface with which the comb projections of the movable blade come into slide contact, the main body of the stationary blade includes an opposed surface which is opposed to a plane including the skin-contact surface, and a shortest distance between the opposed surface and the plane including the skin-contact surface is equal to or greater than a distance between the plane including the skin-contact surface and the comb projection of the movable blade.
    Type: Application
    Filed: August 21, 2008
    Publication date: March 5, 2009
    Applicant: MATSUSHITA ELECTRIC WORKS, LTD.
    Inventors: Makoto FUKUTANI, Toshio IKUTA, Jiro INABA
  • Patent number: 7464471
    Abstract: In a reciprocation type electric shaver having an outside blade unit detachable from a main body, the outside blade unit comprises a main blade, a slit blade and an outside blade holder for holding the main blade and the slit blade capable of floating up and down. A coupling structure for coupling the slit blade on the outside blade holder has a retaining structure for engaging the slit blade and the outside blade holder in a lateral direction of the outside blade unit so as to prevent disengagement of the slit blade from the outside blade holder when the slit blade is floated up and down with inclination. The retaining structure is a pair of fitting recesses formed on the slit blade and a pair of fitting protrusions formed on the outside blade holder.
    Type: Grant
    Filed: December 28, 2005
    Date of Patent: December 16, 2008
    Assignee: Panasonic Electric Works, Ltd.
    Inventors: Makoto Fukutani, Takeshi Shiba, Shunsuke Komori
  • Publication number: 20080052915
    Abstract: A hair clipper includes a comb-like fixed blade and movable blade having a plurality of blade pieces arranged in parallel. The fixed blade and the movable blade is overlapped with each other and the movable blade is reciprocatively slid with respect to the fixed blade in an arrangement direction of the blade pieces. Each blade piece of the movable blade has blade edges formed at both sides thereof, each blade edge being formed with a leading rectilinear part and a basal rectilinear part; the leading rectilinear part and the basal rectilinear part are inclined with respect to the blade edges formed at both sides of each blade piece of the fixed blade by an acute included angle ?; and each blade edge of the movable blade has a rake surface facing an opposite side to the fixed blade.
    Type: Application
    Filed: August 28, 2007
    Publication date: March 6, 2008
    Applicant: Matsushita Electric Works, Ltd.
    Inventors: Makoto Fukutani, Toshio Ikuta
  • Publication number: 20070227007
    Abstract: An electric shaver includes a plurality of outer cutter frames connected to an electric shaver main body, the outer cutter frames accommodating therein short hair cutter blocks and long hair cutter blocks. Each of the outer cutter frames is floatably and swingably movable with respect to the electric shaver main body according to an amount of pressure applied to the outer cutter frame by a skin.
    Type: Application
    Filed: May 29, 2007
    Publication date: October 4, 2007
    Inventors: Makoto Fukutani, Toshio Ikuta
  • Publication number: 20070056166
    Abstract: The electric shaver in accordance with the present invention comprises a hand grip 10 configured to be gripped by a user's hand, and a blade head 20 provided on an upper end of the hand grip. The blade head carries at least one shaving unit 50 comprising an outer blade foil 70 and an inner blade 80 driven in a shearing engagement manner with the outer blade foil. The outer blade foil has a plurality of holes in which hairs are introduced. The outer blade foil is elongated and has a length, and is curved along a width direction to form a generally C-shaped cross section, and is curved convexly and uniformly along its length to have a longitudinal curved outline. The feature of the present invention resides in that a radius of curvature of the longitudinal curved outline is 150 mm to 350 mm.
    Type: Application
    Filed: November 10, 2004
    Publication date: March 15, 2007
    Applicant: MATSUSHITA ELECTRIC WORKS, LTD.
    Inventors: Takeshi Shiba, Nariyoshi Nakamura, Masaaki Sato, Tomoyuki Inoue, Shunsuke Komori, Makoto Fukutani
  • Publication number: 20070044320
    Abstract: The hair clipper comprises comb-like fixed blade and movable blade each having a plurality of comb-teeth each provided at its both sides with blades, in which the movable blade is reciprocated with respect to the fixed blade in an arrangement direction of the comb-teeth to cut hair, the fixed blade or the movable blade is slid in a projecting direction of the comb-teeth to adjust cutting height, wherein a tip of each comb-tooth of the fixed blade is provided with a guide projection for introducing hair, the guide projection is tapered with an inclination angle which is larger than an inclination angle of the comb-tooth with respect to projecting direction of blades on both sides of the comb-tooth.
    Type: Application
    Filed: August 22, 2006
    Publication date: March 1, 2007
    Applicant: MATSUSHITA ELECTRIC WORKS, LTD.
    Inventors: Makoto FUKUTANI, Toshio IKUTA, Jiro INABA
  • Publication number: 20060137187
    Abstract: In a reciprocation type electric shaver having an outside blade unit detachable from a main body, the outside blade unit comprises a main blade, a slit blade and an outside blade holder for holding the main blade and the slit blade capable of floating up and down. A coupling structure for coupling the slit blade on the outside blade holder has a retaining structure for engaging the slit blade and the outside blade holder in a lateral direction of the outside blade unit so as to prevent disengagement of the slit blade from the outside blade holder when the slit blade is floated up and down with inclination. The retaining structure is a pair of fitting recesses formed on the slit blade and a pair of fitting protrusions formed on the outside blade holder.
    Type: Application
    Filed: December 28, 2005
    Publication date: June 29, 2006
    Applicant: Matsushita Electric Works, Ltd.
    Inventors: Makoto Fukutani, Takeshi Shiba, Shunsuke Komori
  • Publication number: 20050274019
    Abstract: A shaving head for a dry shaver is capable of increasing the cutting efficiency, yet allowing the use of the inner cutter of simple structure. The shaving head has a slit cutter unit composed of an outer cutter shaped to have a top surface for contact with a user's skin, and an inner cutter in contact with a bottom surface of the outer cutter. The outer cutter has a U-shaped structure with a pair of legs connected by a crossbar, and to have a plurality of slits which are spaced in a lengthwise axis of the outer cutter to leave a plurality of bridges each between the adjacent ones of the slits. The slits extend continuously over a full width of the crossbar and into upper ends of the legs in a direction generally perpendicular to the lengthwise axis, giving two straight slit paths respectively on opposite width ends of the outer cutter. The straight slit paths on the opposite width ends are staggered with respect to each other along the lengthwise axis.
    Type: Application
    Filed: June 14, 2005
    Publication date: December 15, 2005
    Inventors: Tomoyuki Inoue, Ryuji Otani, Takeshi Shiba, Makoto Fukutani, Masaaki Sato, Shunsuke Komori
  • Publication number: 20050016002
    Abstract: An electric shaver includes a plurality of outer cutter frames connected to an electric shaver main body, for accommodating short hair cutter blocks and long hair cutter blocks. Each of the outer cutter frames is movable with respect to the electric shaver main body according to an amount of pressure applied to the outer cutter frame against the skin.
    Type: Application
    Filed: July 22, 2004
    Publication date: January 27, 2005
    Applicant: Matsushita Electric Works, Ltd.,
    Inventors: Makoto Fukutani, Toshio Ikuta