Patents Assigned to Izumi Products Company
  • Patent number: 7584541
    Abstract: A rotary electric shaver including a substantially disc-shaped outer cutter 18 having hair introduction openings and held in the upper part of the shaver main body 50 housing therein a motor, and an inner cutter that, while elastically contacting the inner surface of the outer cutter 18, is rotationally driven by the motor; and the shaver further including an outer cutter frame 14A provided on the shaver main body 50, and a skin protection rim 16 that is interposed between the outer cutter frame 14A and the outer cutter 18 to hold the outer cutter 18 and is elastically provided so as to be depressible with respect to the outer cutter frame 14A.
    Type: Grant
    Filed: November 7, 2006
    Date of Patent: September 8, 2009
    Assignee: Izumi Products Company
    Inventor: Hiromi Uchiyama
  • Patent number: 7540090
    Abstract: A rotary shaver including an outer cutter frame (18) provided on a shaver main body (10), an outer cutter (14) that is installed in this outer cutter frame (18) and has ring-shaped thin layer portions (28a, 28b) whose upper surfaces are the shaving surfaces, and an inner cutter (16) that has cutter bodies (38) that rotates and make sliding contact with the lower surface of the thin layer portions of the outer cutter to cut hair that entered hair introduction openings (30a, 30b) formed in the thin layer portions; wherein the hair introduction openings have a slit shape extending in substantially the radial direction of the thin layer portions, and the cutting edge angle (p, q) at the lower end(s) of the side wall surface(s) of the hair introduction openings (30a, 30b) defined by the ribs (32a, 32b) is an acute angle.
    Type: Grant
    Filed: February 15, 2008
    Date of Patent: June 2, 2009
    Assignee: Izumi Products Company
    Inventor: Tsuyoshi Nakano
  • Patent number: 7509741
    Abstract: Electric rotary shaver including an outer cutter 14, in which a ring-shaped groove 26 is formed in the top portion and two ring-shaped inner cutter running tracks 34 are formed in the interior surface, and an inner cutter 16, in which a plurality of cutter blades 40 are provided that make sliding contact with the inner cutter running tracks 34 of the outer cutter 14. A sliding surface where the cutter blades of the inner cutter make a sliding contact with the inner cutter running track of the outer cutter is set on a plane C perpendicular to the center axis line (A), and the thickness of the top portion of the outer cutter 14 is such that the portions near the ring-shaped groove 26 are made thinner or thicker than the other part of the top portion on at least a part of the circumference.
    Type: Grant
    Filed: January 19, 2006
    Date of Patent: March 31, 2009
    Assignee: Izumi Products Company
    Inventor: Tetsuhiko Shimizu
  • Patent number: 7487592
    Abstract: An electric shaver including an outer cutter holder (30) that holds the outer cutters (24), an inner cutter holder (42) which has a plurality of projections (50) that pass through the outer cutter holder (30) and press the outer circumferential edges of the outer cutters (24) and which holds the inner cutters (36) so that the inner cutters are rotatable, a single shaft member (62) which passes through the inner cutter holder (42) and outer cutter holder (30) and whose tip end is positioned in the cutter frame (20) so as to be located between the mutually adjacent outer cutters (24), and a cutter retaining assembly (60), which the shaft member (62) passes through and is detachably anchored to the cutter frame (20) and further elastically presses the inner cutter holder (42) toward the outer cutters.
    Type: Grant
    Filed: April 26, 2005
    Date of Patent: February 10, 2009
    Assignee: Izumi Products Company
    Inventor: Hideaki Koike
  • Patent number: 7401407
    Abstract: An electric rotary shaver, in which the cutter head that includes outer and inner cutters is washable while the inner cutter(s) is being rotationally driven, including agitating vanes that agitate the liquid in which the cutter head is immersed and discharge shaving debris out of the cutter head by generating a flow of the liquid. The agitating vanes are provided on a drive shaft(s) that engages with and rotates the inner cutter(s) and rotationally drives the inner cutter(s).
    Type: Grant
    Filed: April 29, 2004
    Date of Patent: July 22, 2008
    Assignee: Izumi Products Company
    Inventor: Toshihide Miyasaka
  • Patent number: 7370420
    Abstract: A cutter unit of a rotary shaver including: a cutter receiving stage 90 held by an outer cutter housing 18 and coaxially penetrated by a drive shaft 26, a pivot case holder 50 held by the cutter receiving stage to be movable upward and downward and having a case supporting portion 58 below an outer cutter 14, a bowl-shaped pivot case 48 held by the pivot case holder 50 to make sliding contact with the case supporting portion 58 of the pivot case holder, the pivot case 48 being pivotable in any direction and surrounding the lower portion of an inner cutter 40, an outer cutter ring 76 provided on the pivot case 48 and in which the flange of the outer cutter is secured, and a return spring 70 for returning the pivot case 48 to be coaxial with the drive shaft.
    Type: Grant
    Filed: May 17, 2006
    Date of Patent: May 13, 2008
    Assignee: Izumi Products Company
    Inventor: Tetsuhiko Shimizu
  • Patent number: 7356929
    Abstract: A rotary shaver including an outer cutter frame (18) provided on a shaver main body (10), an outer cutter (14) that is installed in this outer cutter frame (18) and has ring-shaped thin layer portions (28a, 28b) whose upper surfaces are the shaving surfaces, and an inner cutter (16) that has cutter bodies (38) that rotates and make sliding contact with the lower surface of the thin layer portions of the outer cutter to cut hair that entered hair introduction openings (30a, 30b) formed in the thin layer portions; wherein the hair introduction openings have a slit shape extending in substantially the radial direction of the thin layer portions, and the cutting edge angle (p, q) at the lower end(s) of the side wall surface(s) of the hair introduction openings (30a, 30b) defined by the ribs (32a, 32b) is an acute angle.
    Type: Grant
    Filed: February 14, 2006
    Date of Patent: April 15, 2008
    Assignee: Izumi Products Company
    Inventor: Tsuyoshi Nakano
  • Patent number: 7353751
    Abstract: A coffeemaker that heats up water in water tanks and supplies the heated water into a coffee funnel that has ground coffee and further collects liquid coffee dripping from the coffee funnel; the coffeemaker including an iced coffee tank, which collects the liquid coffee that drips from the coffee funnel, and an ice water tank, which accommodates the iced coffee tank and contains ice water that cools the liquid coffee inside the iced coffee tank via the walls of the iced coffee tank; and a relative difference in rotational speed being given to the iced coffee tank and the ice water inside the ice water tank.
    Type: Grant
    Filed: November 10, 2004
    Date of Patent: April 8, 2008
    Assignee: Izumi Products Company
    Inventor: Hiroyuki Takizawa
  • Patent number: 7328864
    Abstract: An electric grating food processor including a food material receiving section 18 that has an opening in its upper part and receives processed food materials therein, a cylindrical food material charging section 68 that has a lower end opening at its lower end, a grater plate 58 that is rotated or linearly reciprocated under the lower end opening of the food material charging section, and a drive unit for operating (rotating or linearly reciprocating) the grater plate; and the grater plate is formed with larger grating blades on one surface side thereof and lower grating blades on another surface side thereof, and the grater plate is further provided thereon with a gap adjuster 98 that adjusts the gap between the tip ends of the grating blades and the lower end opening of the food material charging section.
    Type: Grant
    Filed: October 27, 2006
    Date of Patent: February 12, 2008
    Assignee: Izumi Products Company
    Inventors: Akira Narai, Masanori Misawa
  • Patent number: 7325311
    Abstract: A reciprocating-type electric shaver including an outer cutter having an inverted U shape as seen from a side thereof and an inner cutter making a reciprocating motion while making sliding contact with an inside surface of outer cutter, and further including: an oscillator making a reciprocating motion by a motor installed inside the main body of the shaver; a central shaft provided in an upright position on the oscillator and rises toward the inside of the outer cutter; an inner cutter holder disposed in a slidable manner on the central shaft so that the inner cutter holder holds the inner cutter thereon and the inner cutter swings about a straight line that is perpendicular to the reciprocating direction of the inner cutter; and a spring compressedly installed between the oscillator and the inner cutter holder.
    Type: Grant
    Filed: November 23, 2005
    Date of Patent: February 5, 2008
    Assignee: Izumi Products Company
    Inventor: Tetsuhiko Shimizu
  • Patent number: 7313867
    Abstract: A method for manufacturing an inner cutter for a reciprocating electric shaver, including the steps of: press-stamping a thin metal plate to obtain a thin metal plate element that has an outer contour of an unfolded inner cutter and elongated openings that extend substantially perpendicular to the direction of the reciprocating motion the inner cutter makes and further has bridging-portions formed between the elongated openings; pressing the bridging-portions so that each bridging-portion has a final sectional shape of each cutter blade of the inner cutter; twisting the bridging-portions so that the cutter surfaces of the cutter blades are aligned substantially to the surface of the thin metal plate element; forming the thin metal plate element into substantially an arch shape with the cutter surface sides of the cutter blades facing outward; and executing finishing-work on the outer circumferential surface of the arch-shaped thin metal plate element.
    Type: Grant
    Filed: September 18, 2006
    Date of Patent: January 1, 2008
    Assignee: Izumi Products Company
    Inventor: Masaki Okabe
  • Patent number: 7251855
    Abstract: An electric vacuum cleaner with a vacuum cleaner main body that includes a water pan which stores water for removing dust from dust-containing air, and a suction compartment made up with a main casing detachably installed on the water pan compartment, a separator that rotates in the main casing to separate air from the water, and a main fan that rotates in the main casing and sucks in dust-containing air and exhausts air, from which water has been separated by the separator, to the outside of the vacuum cleaner main body; and in this cleaner, the separator is in a round basket shape and ribs are formed in the circumferential direction with slit gaps opened between the ribs, and a reverse jet fin assembly that rotates together with the separator and causes air to jet downward toward the outer surface of the separator is provided on the upper opening of the separator.
    Type: Grant
    Filed: December 2, 2003
    Date of Patent: August 7, 2007
    Assignee: Izumi Products Company
    Inventors: Akimitsu Hayashi, Tetsuhiko Shimiuzu
  • Patent number: 7243576
    Abstract: A method for manufacturing an inner cutter for a reciprocating electric shaver, including the steps of: press-stamping a thin metal plate to obtain a thin metal plate element that has an outer contour of an unfolded inner cutter and elongated openings that extend substantially perpendicular to the direction of the reciprocating motion the inner cutter makes and further has bridging-portions formed between the elongated openings; pressing the bridging-portions so that each bridging-portion has a final sectional shape of each cutter blade of the inner cutter; twisting the bridging-portions so that the cutter surfaces of the cutter blades are aligned substantially to the surface of the thin metal plate element; forming the thin metal plate element into substantially an arch shape with the cutter surface sides of the cutter blades facing outward; and executing finishing-work on the outer circumferential surface of the arch-shaped thin metal plate element.
    Type: Grant
    Filed: January 14, 2005
    Date of Patent: July 17, 2007
    Assignee: Izumi Products Company
    Inventor: Masaki Okabe
  • Patent number: 7222428
    Abstract: An electric rotary shaver including: a locking member (50) having a plurality of arms (54) outwardly extending from the center, a cutter retaining plate (38) that engages with outer circumferential rims of outer cutters (24) and rotatably holds inner cutters (32), guide pins (56) provided on the tip ends of the arms (54) and slidably pass through the cutter retaining plate (38), permanent magnets (62) fastened to the cutter frame (20) and attach the guide pins (56) by magnetic attraction in a detachable manner, compression coil springs (64) mounted on the guide pins (56) and provided in a compressed state between the arms (54) and the cutter retaining plate (38), and anchoring elements (66, 68) which prevents a locking member (50) from being separated from the cutter retaining plate (38) by more than a predetermined gap.
    Type: Grant
    Filed: September 21, 2005
    Date of Patent: May 29, 2007
    Assignee: Izumi Products Company
    Inventor: Hideaki Koike
  • Patent number: 7178242
    Abstract: An electric rotary shaver including a substantially circular disk form outer cutter, which has hair entry openings, and an inner cutter, which rotates while making sliding contact with the inner surface of the outer cutter; and the inner cutter including an inner cutter base, which is made of a synthetic resin and comprised of a boss that engages with a rotary shaft of the shaver and cutter blade supports that extend radially outward from the boss, and a plurality of cutter blade sections, which have a cutter blade and are installed on the cutter blade supports. The cutter blade sections can be formed in a shape of a ring to make a cutter blade ring so that the cutter blade ring is disposed on the cutter blade supports.
    Type: Grant
    Filed: December 1, 2004
    Date of Patent: February 20, 2007
    Assignee: Izumi Products Company
    Inventor: Masaki Okabe
  • Patent number: 7171751
    Abstract: An electric shaver including first and second oscillators that convert rotational driving, which is supplied from a driving motor via joint portions that are connected to each other in a plurality of locations in the height direction of the shaver, into reciprocating driving that is oriented in mutually opposite directions and transmit this reciprocating driving to cutter units. The first and second oscillators are connected to first and second eccentric pins which are installed in upright at positions where phases are substantially opposite above and below the eccentric joint portions.
    Type: Grant
    Filed: May 28, 2003
    Date of Patent: February 6, 2007
    Assignee: Izumi Products Company
    Inventors: Seiji Iwashita, Akira Hirabayashi, Yukio Izumi, Hiromi Uchiyama
  • Patent number: 7152324
    Abstract: An electric shaver including a cutter frame; an outer cutter disposed inside the cutter frame and is composed of a shaving surface having hair introduction openings, a side wall formed in continuous to the shaving surface, and corner slits formed in the side wall so as to communicate with the hair introduction openings; and an inner cutter having a plurality of inner cutter bodies that make sliding contact with an inside surface of the shaving surface of the outer cutter; wherein the electric shaver is provided with an upright member which is disposed between the side wall and side end surfaces of the inner cutter bodies that face the side wall and is disposed upright in a direction perpendicular to the shaving surface of the outer cutter. The tip end portion of upright member can protrude further toward the shaving surface than the end portions of the corner slits.
    Type: Grant
    Filed: February 25, 2004
    Date of Patent: December 26, 2006
    Assignee: Izumi Products Company
    Inventor: Hiromi Uchiyama
  • Patent number: 7143515
    Abstract: An electric shaver including a shaver main body and a cutter head, which is installed on the upper portion of the shaver main body and has cutter units each having an outer cutter and an inner cutter that reciprocates while making sliding contact with the inside surface of the outer cutter, in which at least one cutter unit is provided with a foil-form outer cutter, and such cutter unit having the foil-form outer cutter is provided so as to be movable, within the cutter head, between a standard position and a predetermined upper or lower position so that the cutter unit is fixed in place at one of the standard, upper and lower positions.
    Type: Grant
    Filed: September 12, 2003
    Date of Patent: December 5, 2006
    Assignee: Izumi Products Company
    Inventors: Yukio Izumi, Akira Hirabayashi, Seiji Iwashita, Hiroshi Kobayashi, Tetsuya Akabane, Hiromi Uchiyama
  • Patent number: D549391
    Type: Grant
    Filed: July 28, 2004
    Date of Patent: August 21, 2007
    Assignee: Izumi Products Company
    Inventor: Kyoichi Kawafune
  • Patent number: D593252
    Type: Grant
    Filed: April 17, 2008
    Date of Patent: May 26, 2009
    Assignee: Izumi Products Company
    Inventor: Tomoji Masuda