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).
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Patent number: 9527219Abstract: 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: GrantFiled: September 21, 2010Date of Patent: December 27, 2016Assignee: Panasonic Intellectual Property Management Co., Ltd.Inventors: Jyuzaemon Iwasaki, Makoto Fukutani, Hiroaki Shimizu, Toshio Ikuta
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Patent number: 9108325Abstract: 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: GrantFiled: January 19, 2011Date of Patent: August 18, 2015Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.Inventors: Shigetoshi Sakon, Kenji Narita, Jyuzaemon Iwasaki, Makoto Fukutani, Hiroaki Shimizu, Takeshi Shiba
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Patent number: 8806763Abstract: 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: GrantFiled: January 16, 2013Date of Patent: August 19, 2014Assignee: Panasonic CorporationInventors: Takeshi Shiba, Nariyoshi Nakamura, Masaaki Sato, Tomoyuki Inoue, Shunsuke Komori, Makoto Fukutani
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Patent number: 8713802Abstract: 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: GrantFiled: August 21, 2008Date of Patent: May 6, 2014Assignee: Panasonic CorporationInventors: Makoto Fukutani, Toshio Ikuta, Jiro Inaba
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Patent number: 8479400Abstract: 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: GrantFiled: August 28, 2007Date of Patent: July 9, 2013Assignee: Panasonic CorporationInventors: Makoto Fukutani, Toshio Ikuta
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Publication number: 20120151773Abstract: 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: ApplicationFiled: September 21, 2010Publication date: June 21, 2012Applicant: PANASONIC CORPORATIONInventors: Jyuzaemon Iwasaki, Makoto Fukutani, Hiroaki Shimizu, Toshio Ikuta
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Patent number: 8176637Abstract: 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: GrantFiled: August 22, 2006Date of Patent: May 15, 2012Assignee: Panasonic CorporationInventors: Makoto Fukutani, Toshio Ikuta, Jiro Inaba
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Publication number: 20110179648Abstract: 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: ApplicationFiled: January 19, 2011Publication date: July 28, 2011Applicant: PANASONIC ELECTRIC WORKS CO., LTD.Inventors: Shigetoshi SAKON, Kenji NARITA, Jyuzaemon IWASAKI, Makoto FUKUTANI, Hiroaki SHIMIZU, Takeshi SHIBA
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Publication number: 20100126022Abstract: 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: ApplicationFiled: August 31, 2009Publication date: May 27, 2010Applicant: Matsushita Electric Works, Ltd.Inventors: Takeshi Shiba, Nariyoshi Nakamura, Masaaki Sato, Tomoyuki Inoue, Shunsuke Komori, Makoto Fukutani
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Publication number: 20100018057Abstract: 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: ApplicationFiled: October 8, 2009Publication date: January 28, 2010Inventors: Makoto FUKUTANI, Toshio IKUTA
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Publication number: 20090320296Abstract: 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: ApplicationFiled: June 22, 2009Publication date: December 31, 2009Applicant: PANASONIC ELECTRIC WORKS, CO., LTD.Inventors: Kazuhiro MORISUGI, Makoto FUKUTANI, Jiro YOICHI, Toshio IKUTA, Takashi KOZAI, Hiroyuki OKADA
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Publication number: 20090056143Abstract: 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: ApplicationFiled: August 21, 2008Publication date: March 5, 2009Applicant: MATSUSHITA ELECTRIC WORKS, LTD.Inventors: Makoto FUKUTANI, Toshio IKUTA, Jiro INABA
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Patent number: 7464471Abstract: 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: GrantFiled: December 28, 2005Date of Patent: December 16, 2008Assignee: Panasonic Electric Works, Ltd.Inventors: Makoto Fukutani, Takeshi Shiba, Shunsuke Komori
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Publication number: 20080052915Abstract: 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: ApplicationFiled: August 28, 2007Publication date: March 6, 2008Applicant: Matsushita Electric Works, Ltd.Inventors: Makoto Fukutani, Toshio Ikuta
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Publication number: 20070227007Abstract: 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: ApplicationFiled: May 29, 2007Publication date: October 4, 2007Inventors: Makoto Fukutani, Toshio Ikuta
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Publication number: 20070056166Abstract: 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: ApplicationFiled: November 10, 2004Publication date: March 15, 2007Applicant: MATSUSHITA ELECTRIC WORKS, LTD.Inventors: Takeshi Shiba, Nariyoshi Nakamura, Masaaki Sato, Tomoyuki Inoue, Shunsuke Komori, Makoto Fukutani
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Publication number: 20070044320Abstract: 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: ApplicationFiled: August 22, 2006Publication date: March 1, 2007Applicant: MATSUSHITA ELECTRIC WORKS, LTD.Inventors: Makoto FUKUTANI, Toshio IKUTA, Jiro INABA
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Publication number: 20060137187Abstract: 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: ApplicationFiled: December 28, 2005Publication date: June 29, 2006Applicant: Matsushita Electric Works, Ltd.Inventors: Makoto Fukutani, Takeshi Shiba, Shunsuke Komori
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Publication number: 20050274019Abstract: 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: ApplicationFiled: June 14, 2005Publication date: December 15, 2005Inventors: Tomoyuki Inoue, Ryuji Otani, Takeshi Shiba, Makoto Fukutani, Masaaki Sato, Shunsuke Komori
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Publication number: 20050016002Abstract: 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: ApplicationFiled: July 22, 2004Publication date: January 27, 2005Applicant: Matsushita Electric Works, Ltd.,Inventors: Makoto Fukutani, Toshio Ikuta