Patents by Inventor Masanobu Yamasaki
Masanobu Yamasaki 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: 10016041Abstract: A hair removal tool is equipped with: a drive unit for driving a blade; a load detection unit for detecting the size of the load on the drive unit; and a control unit for changing the drive mode of the drive unit between a first drive mode for driving the drive unit at a first drive speed, a second drive mode for driving the drive unit at a second drive speed which is faster than the first drive speed, and a transition mode for driving the drive unit at a transition speed which is faster than the second drive speed. A first interval is set as the interval from when the drive mode is changed from the first drive mode to the transition mode until when the drive mode is changed from the transition mode to the second drive mode. A second interval is set as the interval from when the drive mode is changed from the transition mode to the second drive mode until when the drive mode is changed from the second drive mode to the first drive mode. The first interval is shorter than the second interval.Type: GrantFiled: January 23, 2014Date of Patent: July 10, 2018Assignee: Panasonic Intellectual Property Management Co., Ltd.Inventors: Takafumi Ohba, Koji Asakawa, Masanobu Yamasaki, Yoichi Takaoka
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Publication number: 20160000202Abstract: A hair removal tool is equipped with: a drive unit for driving a blade; a load detection unit for detecting the size of the load on the drive unit; and a control unit for changing the drive mode of the drive unit between a first drive mode for driving the drive unit at a first drive speed, a second drive mode for driving the drive unit at a second drive speed which is faster than the first drive speed, and a transition mode for driving the drive unit at a transition speed which is faster than the second drive speed. A first interval is set as the interval from when the drive mode is changed from the first drive mode to the transition mode until when the drive mode is changed from the transition mode to the second drive mode. A second interval is set as the interval from when the drive mode is changed from the transition mode to the second drive mode until when the drive mode is changed from the second drive mode to the first drive mode. The first interval is shorter than the second interval.Type: ApplicationFiled: January 23, 2014Publication date: January 7, 2016Inventors: Takafumi OHBA, Koji ASAKAWA, Masanobu YAMASAKI, Yoichi TAKAOKA
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Patent number: 8819946Abstract: A support arm that is rockably supported on one end of a grip portion and projects from the one end is provided. Both ends of a blade head are supported by the support arm such that the blade head can rock around an axis extending along a reciprocating direction of an inner blade, and an axial direction of the rocking motion of the support arm with respect to the grip portion is set in a direction intersecting with the reciprocating direction of the inner blade. This configuration achieves an electric shaver capable of increasing the movable range of the blade head while preventing a main body from increasing in size.Type: GrantFiled: September 27, 2006Date of Patent: September 2, 2014Assignee: Panasonic CorporationInventors: Masanobu Yamasaki, Takeshi Shiba, Juzaemon Iwasaki, Shinji Fujimoto, Masaaki Sato, Shunsuke Komori
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Patent number: 8661688Abstract: An electric shaver including: a gripper portion to be held by the user's hand; and a head portion configured to hold a shaving-blade unit and supported to be swingable in predetermined directions with respect to the gripper portion, wherein the head portion is provided with an edge-trimmer-blade unit.Type: GrantFiled: December 30, 2009Date of Patent: March 4, 2014Assignee: Panasonic CorporationInventors: Hiroshi Shigeta, Masanobu Yamasaki, Shin Hosokawa, Takeshi Shiba, Jyuzaemon Iwasaki
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Patent number: 8633410Abstract: A switch is coupled to a switch support and includes a push button, a lock assembly, a tab, and a hook. The lock assembly includes an operation ring, which is rotated about the button between an unlock position to permit actuation of the button and a lock state to prohibit actuation of the button, and a lock ring, which is rotated integrally with the operation ring. When the operation ring is located at the lock position, the hook and the tab are arranged at the same position in a circumferential direction, which creates interference between the hook and the tab and blocks actuation of the button. When the operation ring is located at the unlock position, the hook and the tab are separated from each other in the circumferential direction, which avoids interference between the hook and the tab and permits actuation of the button.Type: GrantFiled: January 30, 2012Date of Patent: January 21, 2014Assignee: Panasonic CorporationInventors: Masanobu Yamasaki, Yasuhide Matsuoka
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Publication number: 20130104402Abstract: A reciprocating electric shaver includes: a rotary motor; a conversion mechanism converting rotating motion of the rotary motor to reciprocating motion; and driving elements 130 and 140 coupled to the conversion mechanism and reciprocating. Then, a sealed space sealed so as not allow entry of hair is formed, and moreover, balance adjusters 150 and 160 reciprocating integrally with the driving elements 130 and 140 are arranged in the sealed space, and the balance adjusters 150 and 160 are attached to the driving elements 130 and 140 in a direction orthogonal to a reciprocating direction of the driving elements 130 and 140 and orthogonal to a direction of pressing inner blades against outer blades.Type: ApplicationFiled: June 13, 2011Publication date: May 2, 2013Applicant: PANASONIC CORPORATIONInventors: Masanobu Yamasaki, Yoichi Takaoka, Hiroshi Shigeta
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Patent number: 8381405Abstract: An electric shaver including: a gripper portion to be held by the user's hand; and a head portion configured to hold a shaving-blade unit and supported to be swingable in predetermined directions with respect to the gripper portion, wherein the head portion is provided with: an edge-trimmer-blade unit configured to be switched between a ready-for-use state and a stored state by an operation element; and a engaging portion for fixing the head portion, the engaging portion configured to be engaged with the operation element when the edge-trimmer-blade unit is switched to the ready.Type: GrantFiled: December 30, 2009Date of Patent: February 26, 2013Assignee: Panasonic CorporationInventors: Hiroshi Shigeta, Masanobu Yamasaki, Shin Hosokawa, Takeshi Shiba, Jyuzaemon Iwasaki
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Publication number: 20120217141Abstract: A switch is coupled to a switch support and includes a push button, a lock assembly, a tab, and a hook. The lock assembly includes an operation ring, which is rotated about the button between an unlock position to permit actuation of the button and a lock state to prohibit actuation of the button, and a lock ring, which is rotated integrally with the operation ring. When the operation ring is located at the lock position, the hook and the tab are arranged at the same position in a circumferential direction, which creates interference between the hook and the tab and blocks actuation of the button. When the operation ring is located at the unlock position, the hook and the tab are separated from each other in the circumferential direction, which avoids interference between the hook and the tab and permits actuation of the button.Type: ApplicationFiled: January 30, 2012Publication date: August 30, 2012Applicant: Panasonic CorporationInventors: Masanobu Yamasaki, Yasuhide Matsuoka
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Patent number: 7832104Abstract: The invention provides a hair removing apparatus having a body hair treatment head removing a body hair by shaving the body hair, depilating the body hair or cutting the body hair, and a main body grip held by a hand, and in which the body hair treatment head being rotatably coupled to the main body grip in such a manner that the body hair treatment head is freely oscillated with respect to the main body grip. In this structure, the hair removing apparatus is provided with a weight applying means for applying a force opposing to a force by which the body hair treatment head is oscillated by its own weight of the body hair treatment head around a center of rotation of the body hair treatment head.Type: GrantFiled: December 16, 2005Date of Patent: November 16, 2010Assignee: Panasonic Electric Works Co., Ltd.Inventors: Masanobu Yamasaki, Toshiyuki Tsushio, Takeshi Shiba, Juzaemon Iwasaki
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Patent number: 7794276Abstract: An insulating structure is employed between conductive members of an electric device. The electric device has a housing accommodating electric components therein and a cover member covering the housing, the conductive members being disposed through communication holes of the housing and the cover member. The insulating structure includes contact prevention members for preventing water infiltrated into a gap between the housing and the cover member from contacting water collected in the communication holes for the conductive members, wherein the contact prevention members are interposed between the housing and the cover member. Each contact prevention member has a substantially annular shape, surrounding one of the conductive members.Type: GrantFiled: July 11, 2007Date of Patent: September 14, 2010Assignee: Matsushita Electric Works, Ltd.Inventors: Hiroshi Shigeta, Yasunori Ueda, Masanobu Yamasaki
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Publication number: 20100180920Abstract: In a agent supply device, a agent supplying unit is driven to supply a treatment agent to a head portion provided on a hair processing device after a cleaning unit cleans the head portion.Type: ApplicationFiled: September 27, 2006Publication date: July 22, 2010Applicant: MATSUSHITA ELECTRIC WORKS, LTD.Inventors: Shinji Fujimoto, Takeshi Shiba, Juzaemon Iwasaki, Masaaki Sato, Masanobu Yamasaki, Shunsuke Komori
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Publication number: 20100175260Abstract: An electric shaver including: a gripper portion to be held by the user's hand; and a head portion configured to hold a shaving-blade unit and supported to be swingable in predetermined directions with respect to the gripper portion, wherein the head portion is provided with: an edge-trimmer-blade unit configured to be switched between a ready-for-use state and a stored state by an operation element; and a engaging portion for fixing the head portion, the engaging portion configured to be engaged with the operation element when the edge-trimmer-blade unit is switched to the readyType: ApplicationFiled: December 30, 2009Publication date: July 15, 2010Applicant: PANASONIC ELECTRIC WORKS CO., LTD.Inventors: Hiroshi SHIGETA, Masanobu YAMASAKI, Shin HOSOKAWA, Takeshi SHIBA, Jyuzaemon IWASAKI
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Publication number: 20100175259Abstract: An electric shaver including: a gripper portion to be held by the user's hand; and a head portion configured to hold a shaving-blade unit and supported to be swingable in predetermined directions with respect to the gripper portion, wherein the head portion is provided with an edge-trimmer-blade unit.Type: ApplicationFiled: December 30, 2009Publication date: July 15, 2010Applicant: PANASONIC ELECTRIC WORKS CO., LTD.Inventors: Hiroshi Shigeta, Masanobu Yamasaki, Shin Hosokawa, Takeshi Shiba, Jyuzaemon Iwasaki
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Patent number: 7625233Abstract: An insulating structure is employed between conductive members of an electric device. The electric device has a housing accommodating electric components therein and a cover member covering the housing, the conductive members being disposed through communication holes of the housing and the cover member. The insulating structure includes contact prevention members for preventing water infiltrated into a gap between the housing and the cover member from contacting water collected in the communication holes for the conductive members, wherein the contact prevention members are interposed between the housing and the cover member. Each contact prevention member has a substantially annular shape, surrounding one of the conductive members.Type: GrantFiled: July 11, 2007Date of Patent: December 1, 2009Assignee: Matsushita Electric Works, Ltd.Inventors: Hiroshi Shigeta, Yasunori Ueda, Masanobu Yamasaki
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Publication number: 20090241343Abstract: A support arm 27 that is rockably supported on one end of a grip portion 2 and projects from the one end is provided. Both ends of a blade head 3 are supported by the support arm 27 such that the blade head 3 can rock around an axis extending along a reciprocating direction of an inner blade 14, and an axial direction of the rocking motion of the support arm 27 with respect to the grip portion 2 is set in a direction intersecting with the reciprocating direction of the inner blade 14. This configuration achieves an electric shaver capable of increasing the movable range of the blade head while preventing a main body from increasing in size.Type: ApplicationFiled: September 27, 2006Publication date: October 1, 2009Applicant: PANASONIC ELECTRIC WORKS CO., LTD.Inventors: Masanobu Yamasaki, Takeshi Shiba, Juzaemon Iwasaki, Shinji Fujimoto, Masaaki Sato, Shunsuke Komori
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Patent number: 7461456Abstract: A dry shaver includes a swingable shaving head which is provided with a pair of support points through which the shaving head is supported to a grip through a linkage mechanism. The linkage mechanism includes a pair of cranks each connected at its one end to each one of the support points and connected at the other end to each one of the anchor points on the side of the grip. A frame projects on top of the grip in an overlapping relation with the shaving head to give the anchor points which are positioned upwardly of the support points with respect to a height axis of the grip for suspending the shaving head an top of the grip by the frame.Type: GrantFiled: December 17, 2004Date of Patent: December 9, 2008Assignee: Matsushita Electric Works, Ltd.Inventors: Toshiyuki Tsushio, Jyuzaemon Iwasaki, Takeshi Shiba, Masanobu Yamasaki
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Patent number: 7402165Abstract: A hair removing device capable of feeding a lotion in association with a hair removing operation. The device has a treatment head that is mounted on a housing and includes a hair removing unit for hair depilation or hair epilation and an applicator for supplying a lotion on a user's skin. Also included in the device is a tank holding the lotion and a lotion supply mechanism for supplying the lotion from the tank to the applicator. The treatment head is formed with an actuator which acknowledges an even of the treatment head coming into an operative condition with the skin and activates a lotion supply mechanism to supply the lotion from the tank to the applicator when such event is acknowledged.Type: GrantFiled: August 13, 2004Date of Patent: July 22, 2008Assignee: Matsushita Electric Works, Ltd.Inventors: Atsuhiro Saitou, Jyuzaemon Iwasaki, Masakatsu Araki, Hideki Tanaka, Masanobu Yamasaki, Hirokazu Katou
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Patent number: 7350300Abstract: In a shaver having provided on an upper end portion of a main body thereof a head portion comprising a razor having an outer blade and an inner blade, a front cross section of the shaver has a shape narrowed at a substantially center portion in its up and down direction, and a side cross section of the shaver has a substantially S-shape, in order to increase the contact area between the main body and the palm, to improve fit feeling, to make it hard to slip, and to finely adjust the angle of the razor against the skin without moving the wrist.Type: GrantFiled: March 28, 2003Date of Patent: April 1, 2008Assignee: Matsushita Electric Works, Ltd.Inventors: Takashi Yamaguchi, Yasunori Ueda, Kotaro Yanagi, Izumi Mihara, Masahiro Takatani, Tetsushi Ogawa, Takumi Adachi, Etsushi Muramatsu, Tsuyoshi Nishizawa, Takashi Yukawa, Matsuki Yamamoto, Fumio Taniguchi, Masanobu Yamasaki
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Publication number: 20080020619Abstract: An insulating structure is employed between conductive members of an electric device. The electric device has a housing accommodating electric components therein and a cover member covering the housing, the conductive members being disposed through communication holes of the housing and the cover member. The insulating structure includes contact prevention members for preventing water infiltrated into a gap between the housing and the cover member from contacting water collected in the communication holes for the conductive members, wherein the contact prevention members are interposed between the housing and the cover member. Each contact prevention member has a substantially annular shape, surrounding one of the conductive members.Type: ApplicationFiled: July 11, 2007Publication date: January 24, 2008Applicant: Matsushita Electric Works, Ltd.Inventors: Hiroshi Shigeta, Yasunori Ueda, Masanobu Yamasaki
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Publication number: 20070261249Abstract: The invention provides a hair removing apparatus having a body hair treatment head (A) removing a body hair by shaving the body hair, depilating the body hair or cutting the body hair, and a main body grip (2) held by a hand, and in which the body hair treatment head (A) being rotatably coupled to the main body grip (2) in such a manner that the body hair treatment head (A) is freely oscillated with respect to the main body grip (2). In this structure, the hair removing apparatus is provided with a weight applying means (100, 110, 120, 130, 140) for applying a force opposing to a force by which the body hair treatment head (A) is oscillated by its own weight of the body hair treatment head (A) around a center (81) of rotation of the body hair treatment head (A).Type: ApplicationFiled: December 16, 2005Publication date: November 15, 2007Applicant: MATSUSHITA ELECTRIC WORKS, LTD.Inventors: Masanobu Yamasaki, Toshiyuki Tsushio, Takeshi Shiba, Juzaemon Iwasaki