Patents Assigned to MAXELL IZUMI CO., LTD.
-
Patent number: 12168303Abstract: A rotary electric shaver includes a head connected to a blade setting base of a main body. The blade setting base has a setting part in which a plurality of blade units are disposed, and a blade frame that holds the setting part. An inner blade part of the blade unit has an inner blade member, and a base part joined to the inner blade member. An outer blade part of the blade unit has an annular outer blade member having a sliding contact surface and a plurality of slits formed in the circumferential direction, a disk-shaped cover, a ball, and a support. A part of the ball surrounded by the cover and the support protrudes from the cover.Type: GrantFiled: August 29, 2022Date of Patent: December 17, 2024Assignee: MAXELL IZUMI CO., LTD.Inventors: Kotaro Iwakura, Koichi Odagiri, Yuta Sugiura
-
Patent number: 12134176Abstract: There is provided a compact, lightweight, hydraulic electric tool which can perform a long-term operation by minimizing power consumption while preventing operation efficiency from being degraded due to a hot electric motor. An electric tool includes a main body having an oil tank, a hydraulic pump for feeding hydraulic oil to a cylinder part, and an electric motor for driving the hydraulic pump, and a tool head operated by a pressing force of a piston in the cylinder part in a state where the tool head is coupled to the main body. The oil tank is configured to cover a motor case.Type: GrantFiled: January 17, 2023Date of Patent: November 5, 2024Assignee: MAXELL IZUMI CO., LTD.Inventors: Keiichiro Kamijo, Katsutoshi Kochiyama
-
Patent number: 11338377Abstract: A power tool includes a cutting unit configured to perform a cutting action, and a cutting action input unit configured to turn the cutting action on and off. The cutting action input unit is configured to, when the cutting action input unit is turned on, cause the cutting unit to move in a direction of an end position of the cutting action, and when the cutting action input unit is turned off, cause the cutting unit to stop moving in a case where the cutting action has not ended at a time when the cutting action input unit is turned off, and move in a direction of a standby position at which the cutting unit was located prior to a start of the cutting action in a case where the cutting action has ended at the time when the cutting action input unit is turned off.Type: GrantFiled: May 23, 2017Date of Patent: May 24, 2022Assignee: MAXELL IZUMI CO., LTD.Inventors: Koji Ohta, Naoki Hattori, Isao Haneishi
-
Patent number: 11312033Abstract: A rotary electric shaver has a new structure which compatibly achieves both a function of the rotary electric shaver allowing a user to have less tingling feel on the skin and a function of a reciprocating electric shaver enabling easy deep shaving of hair, by replacing a first head. A rotary electric shaver includes a main body having a drive shaft and a connection part, a first head having a built-in first transmission drive system connected to the drive shaft to rotate a first inner blade, and detachably connected to the connection part, and a second head detachably connected to the connection part from which the first head is removed. The second head has a built-in second transmission drive system connected to the drive shaft to cause the second inner blade to reciprocate.Type: GrantFiled: August 31, 2020Date of Patent: April 26, 2022Assignee: MAXELL IZUMI CO., LTD.Inventors: Toshihiko Ohara, Tomio Kozu
-
Patent number: 11298840Abstract: A rotary electric shaver includes a main body in which a first transmission mechanism, and a connecting portion is disposed; a head unit in which a plurality of blade units each having an outer blade, an inner blade being in sliding contact with an inner surface of the outer blade, and a driven shaft rotating the inner blade are disposed, and a second transmission mechanism that transmits a driving power of the first transmission mechanism to rotate the driven shaft is built, and which is connected to the connecting portion; and a drive shaft for transmitting the driving power of the first transmission mechanism to the second transmission mechanism, wherein a first endless belt is disposed in the first transmission mechanism and a second endless belt is disposed in the second transmission mechanism.Type: GrantFiled: November 26, 2018Date of Patent: April 12, 2022Assignee: Maxell Izumi Co., Ltd.Inventor: Hideaki Koike
-
Patent number: 11241780Abstract: An electric tool (1) includes piston (36) reciprocably housed in cylinder (34) provided in main body portion (10) and be pushed by a pressure of fluid; tool head (14) coupled to a distal end of the main body portion and performing a predetermined operation by being pushed by the piston; return channel (40) communicating from the cylinder to a fluid tank to allow the fluid to flow therethrough; pressure regulating valve (44) disposed in operational flow channel (42) branching from the return channel and taking an open position when the pressure of the fluid in the return channel becomes equal to or higher than a predetermined value; operating pin (46) disposed in the operational flow channel and pushed by the pressure of the fluid flowing therein; and return valve (48) disposed in the return channel and taking an open position by being pushed by the operating pin.Type: GrantFiled: December 7, 2017Date of Patent: February 8, 2022Assignee: Maxell Izumi Co., Ltd.Inventor: Keiichiro Kamijo
-
Patent number: 11230020Abstract: There is provided a rotary electric shaver which includes an external outer blade having a plurality of hair inlet holes on an annular shaving surface, an internal outer blade, a rotationally driven external inner blade having a plurality of small blades coming into sliding contact with a rear surface of the external outer blade, a rotationally driven internal inner blade, an external inner blade rest base, and an internal inner blade rest base. The external outer blade has a cylindrical guide ring formed on an inner peripheral side of an inner wall portion, and the external inner blade has a plurality of guides which come into sliding contact with an inner peripheral surface of the guide ring to perform radial alignment with respect to the external outer blade.Type: GrantFiled: May 4, 2020Date of Patent: January 25, 2022Assignee: MAXELL IZUMI CO., LTD.Inventor: Koichi Odagiri
-
Patent number: 11135732Abstract: There is provided a rotary electric shaver which can easily prevent an outer blade which is undesirable to be brought into contact with a skin from coming into contact with the skin, by reducing the number of contact times of the outer blades in a head with the skin, even when the shaver is used in a state where the head is substantially parallel to the skin. A rotary electric shaver includes a main body having a drive shaft, and a head connected to the main body. At least one of a plurality of blade units has a fulcrum plate, a turning plate, a spring, and a fixing plate, and has a lock mechanism capable of changing a height position of at least one of outer blades corresponding one-to-one to the blade units.Type: GrantFiled: September 4, 2020Date of Patent: October 5, 2021Assignee: MAXELL IZUMI CO., LTD.Inventors: Toshihiko Ohara, Kenichi Karasawa
-
Patent number: 11045964Abstract: A rotary electric shaver includes a main body in which a first transmission mechanism, and a connecting portion is disposed; a head unit in which a plurality of blade units each having an outer blade, an inner blade being in sliding contact with an inner surface of the outer blade, and a driven shaft rotating the inner blade are disposed, and a second transmission mechanism that transmits a power of the first transmission mechanism to rotate the driven shaft is built, and which is connected to the connecting portion. The head unit has a first magnet disposed at a position corresponding to each of the blade units. The main body has a second magnet disposed at a position facing and repelling the first magnet.Type: GrantFiled: November 26, 2018Date of Patent: June 29, 2021Assignee: Maxell Izumi Co., Ltd.Inventor: Hideaki Koike
-
Patent number: 10913169Abstract: A reciprocating-type electric shaver includes an outer blade, an oscillator that is driven to reciprocate by a motor, and an inner blade that reciprocates in cooperation with the oscillator. The oscillator includes attachment portions that are respectively attached to a main body, a movable base, both end sides of which are supported by the attachment portions via support portions having a substantially U-shape, and a cooperation portion that cooperates with the inner blade. In the respective support portions, a portion on a side connected to the attachment portion in a base portion, which is one linear portion of the U-shape, is formed in flexible oscillating pieces. The respective oscillating pieces are formed to be tilted in a direction orthogonal to a reciprocating direction of the movable base so that a lower portion side of the respective oscillating pieces is open outward in the reciprocating direction of the movable base.Type: GrantFiled: April 3, 2018Date of Patent: February 9, 2021Assignee: MAXELL IZUMI CO., LTD.Inventors: Kenya Hayashi, Tetsuhiko Shimizu
-
Patent number: 10471612Abstract: A rotary electric shaver according to the present invention includes an outer blade whose upper surface functions as annular shaving surfaces having multiple hair inlets formed therein, and an inner blade that has a small blade which rotates while coming into sliding contact with a lower surface of the outer blade. The inner blade is an integral structure using a metal material, and has a projection in which an upper surface side is a convex portion and a lower surface side is a concave portion at a center position in a radial direction. An upper end portion of an inner blade drive shaft directly engages with the concave portion so as to be disengageable therefrom.Type: GrantFiled: September 14, 2016Date of Patent: November 12, 2019Assignee: MAXELL IZUMI CO., LTD.Inventor: Tetsuhiko Shimizu
-
Patent number: 10442095Abstract: A rotary electric shaver includes an outer blade whose upper surface functions as annular shaving surfaces having multiple hair inlets formed therein, and an inner blade that has a small blade which rotates while coming into sliding contact with a lower surface of the outer blade. The small blade is formed so that an inner blade base plate is partially erected, and is disposed in at least two rows on a circumference close to an outer periphery and on a circumference close to an inner periphery. There is provided a movable inner blade that has a movable small blade which is vertically movable along a front end surface in a rotation direction of the small blade, with respect to the predetermined small blade.Type: GrantFiled: September 13, 2016Date of Patent: October 15, 2019Assignee: MAXELL IZUMI CO., LTD.Inventors: Tetsuhiko Shimizu, Yoshiyuki Mimura