Patents by Inventor Kotaro Yanagi

Kotaro Yanagi 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).

  • Publication number: 20230381987
    Abstract: The present disclosure provides a depilatory device capable of further improving opening and closing operability of a lid part while moving a head part relative to a body. The depilatory device according to the present disclosure includes a body, and head part that includes a blade part which is configured to cut hair and supported by the body in a state where the head part is reciprocatable relative to the body in a first direction. Head part includes head housing provided inside with a space, and head housing comprises an opening window communicating with the space. Additionally, a lid part that is openable and configured to cover the opening window is attached to head housing. The lid part has an opening and closing direction intersecting trajectory drawn by the lid part when head part is reciprocated relative to the body in the first direction.
    Type: Application
    Filed: May 23, 2023
    Publication date: November 30, 2023
    Inventors: Yuya NAGASHIMA, Kenichi MURAKI, Daisuke SONE, Kotaro YANAGI
  • Patent number: 11679520
    Abstract: The present disclosure provides an electric razor in which a support frame that supports an outer blade and an inner blade, which constitute a block, can be smoothly removed. An electric razor according to the present disclosure includes a main body gripped by a user and a head having a blade block including an outer blade (that is, a slit blade, a mesh blade) and an inner blade disposed inside the outer blade and sliding with respect to the outer blade. The head includes a base, a support frame that supports the blade block so as to be able to float and sink, a case held by the support frame, a hook that locks the support frame or the case to the base, and at least one push-up member that urges the support frame in a direction away from the base.
    Type: Grant
    Filed: January 14, 2022
    Date of Patent: June 20, 2023
    Assignee: PANASONIC INTELLECTUAL. PROPERTY MANAGEMENT CO., LTD.
    Inventors: Toshiharu Hashimoto, Shunsuke Komori, Kotaro Yanagi, Akitaka Ito, Hiroaki Shimizu, Daisuke Sone
  • Publication number: 20220314472
    Abstract: The present disclosure provides an electric razor in which a support frame that supports an outer blade and an inner blade, which constitute a block, can be smoothly removed. An electric razor according to the present disclosure includes a main body gripped by a user and a head having a blade block including an outer blade (that is, a slit blade, a mesh blade) and an inner blade disposed inside the outer blade and sliding with respect to the outer blade. The head includes a base, a support frame that supports the blade block so as to be able to float and sink, a case held by the support frame, a hook that locks the support frame or the case to the base, and at least one push-up member that urges the support frame in a direction away from the base.
    Type: Application
    Filed: January 14, 2022
    Publication date: October 6, 2022
    Inventors: Toshiharu HASHIMOTO, Shunsuke KOMORI, Kotaro YANAGI, Akitaka ITO, Hiroaki SHIMIZU, Daisuke SONE
  • Patent number: 11260548
    Abstract: A hair cutting device includes a grip, a head disposed external to one end of the grip, the head including a cutting unit that works on hair, and a joint connecting the grip and the head. The joint includes a base connected to one of the grip and the head, and a slide portion connected to the other of the grip and head and held to be slidable within a predetermined area on a slide plane that is a plane intersecting an alignment of the grip and the head. Accordingly, the hair cutting device including the head that has an excellent ability to lessen impact which is made when the head hits the skin and to follow the skin surface is provided.
    Type: Grant
    Filed: May 10, 2018
    Date of Patent: March 1, 2022
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Hiroaki Shimizu, Ryo Suzuki, Kotaro Yanagi, Shoki Okura, Hiroki Inoue
  • Patent number: 10471613
    Abstract: Electric appliance (1) includes control section (31) having a plurality of operation modes, driving source (21) controlled by control section (31), and switch (12) for switching between the operation modes. Control section (31) is configured to perform a first determination and a second determination in response to an operation duration of switch (12) in order to determine a type of the operation of switch (12), and to set an operation mode after the operation of switch (12) in response to the results of the first and second determinations and an operation mode before the operation of switch (12). In the present aspect, the operability of switching between the operation modes in electric appliance (1) is improved.
    Type: Grant
    Filed: March 17, 2016
    Date of Patent: November 12, 2019
    Assignee: Panasonic Intellectual Property Management Co., Ltd.
    Inventors: Shinji Nishimura, Takafumi Ohba, Kotaro Yanagi
  • Patent number: 10434669
    Abstract: An electric shaver according to the present disclosure includes: a body block having a holding portion; a head portion having a blade portion and supported on the body block to be swingable about a shaft portion; and a connecting member provided for connecting the body block and the head portion to each other. The connecting member is connected to the body block such that the connecting member is movable relative to the body block in an intersecting direction which intersects with an extending direction of the shaft portion, and the connecting member is also connected to the head portion by way of the shaft portion. The connecting member is connected to the body block by way of a resilient member. With such a configuration, it is possible to provide an electric shaver capable of suppressing the generation of abnormal sounds and vibrations while suppressing lowering of a swing performance.
    Type: Grant
    Filed: February 3, 2017
    Date of Patent: October 8, 2019
    Assignee: Panasonic Intellectual Property Management Co., Ltd.
    Inventors: Ryo Suzuki, Kotaro Yanagi, Satoshi Sobagaki
  • Patent number: 10220530
    Abstract: An electric shaver includes a main body, an outer blade that is held by the main body in a state where a surface of the outer blade is exposed, an inner blade that is disposed inside the outer blade so as to be movable relative to the outer blade, and a rotator that has a rotating body disposed in the main body so as to extend in a moving direction of the inner blade, and a supporter disposed in the main body so as to rotatably support the rotating body. The rotator has an elastic body which enables the rotating body to rotate in a state where the rotating body is in contact with a skin, and which restrains the rotating body from vibrating in a state where the rotating body is not in contact with the skin.
    Type: Grant
    Filed: February 3, 2017
    Date of Patent: March 5, 2019
    Assignee: Panasonic Intellectual Property Management Co., Ltd.
    Inventors: Wei Wang, Kotaro Yanagi, Satoshi Sobagaki
  • Publication number: 20180333874
    Abstract: A hair cutting device includes a grip, a head disposed external to one end of the grip, the head including a cutting unit that works on hair, and a joint connecting the grip and the head. The joint includes a base connected to one of the grip and the head, and a slide portion connected to the other of the grip and head and held to be slidable within a predetermined area on a slide plane that is a plane intersecting an alignment of the grip and the head. Accordingly, the hair cutting device including the head that has an excellent ability to lessen impact which is made when the head hits the skin and to follow the skin surface is provided.
    Type: Application
    Filed: May 10, 2018
    Publication date: November 22, 2018
    Inventors: Hiroaki SHIMIZU, Ryo SUZUKI, Kotaro YANAGI, Shoki OKURA, Hiroki INOUE
  • Publication number: 20170225342
    Abstract: An electric shaver includes a main body, an outer blade that is held by the main body in a state where a surface of the outer blade is exposed, an inner blade that is disposed inside the outer blade so as to be movable relative to the outer blade, and a rotator that has a rotating body disposed in the main body so as to extend in a moving direction of the inner blade, and a supporter disposed in the main body so as to rotatably support the rotating body. The rotator has an elastic body which enables the rotating body to rotate in a state where the rotating body is in contact with a skin, and which restrains the rotating body from vibrating in a state where the rotating body is not in contact with the skin.
    Type: Application
    Filed: February 3, 2017
    Publication date: August 10, 2017
    Inventors: Wei WANG, Kotaro YANAGI, Satoshi SOBAGAKI
  • Publication number: 20170225343
    Abstract: An electric shaver according to the present disclosure includes: a body block having a holding portion; a head portion having a blade portion and supported on the body block to be swingable about a shaft portion; and a connecting member provided for connecting the body block and the head portion to each other. The connecting member is connected to the body block such that the connecting member is movable relative to the body block in an intersecting direction which intersects with an extending direction of the shaft portion, and the connecting member is also connected to the head portion by way of the shaft portion. The connecting member is connected to the body block by way of a resilient member. With such a configuration, it is possible to provide an electric shaver capable of suppressing the generation of abnormal sounds and vibrations while suppressing lowering of a swing performance.
    Type: Application
    Filed: February 3, 2017
    Publication date: August 10, 2017
    Inventors: Ryo SUZUKI, Kotaro YANAGI, Satoshi SOBAGAKI
  • Publication number: 20160307712
    Abstract: Electric appliance (1) includes control section (31) having a plurality of operation modes, driving source (21) controlled by control section (31), and switch (12) for switching between the operation modes. Control section (31) is configured to perform a first determination and a second determination in response to an operation duration of switch (12) in order to determine a type of the operation of switch (12), and to set an operation mode after the operation of switch (12) in response to the results of the first and second determinations and an operation mode before the operation of switch (12). In the present aspect, the operability of switching between the operation modes in electric appliance (1) is improved.
    Type: Application
    Filed: March 17, 2016
    Publication date: October 20, 2016
    Inventors: SHINJI NISHIMURA, TAKAFUMI OHBA, KOTARO YANAGI
  • Publication number: 20120216409
    Abstract: An electric shaver includes a head, outer blades located next to one another in an arrangement that extends in a front to back direction of the head, a drive source that drives a first drive element and a second drive element back and forth in different directions, and inner blades each coupled to and driven by the first drive element or the second drive element to be movable back and forth in a longitudinal direction of the outer blades, which is a widthwise direction of the head, at an inner side of the outer blades. The inner blades are coupled to the first drive element and the second drive element at a ratio of two to three.
    Type: Application
    Filed: January 25, 2012
    Publication date: August 30, 2012
    Applicant: Panasonic Corporation
    Inventors: Hiroshi Shigeta, Kotaro Yanagi, Ryo Suzuki
  • Patent number: 7984722
    Abstract: A cleaning system for cleaning an operator head of a hair removing apparatus such as a dry shaver. The system includes a cleaning device having a housing configured to hold the shaver upside down to place the operator head in a basin for cleaning the same with a liquid supplied from a tank. The apparatus incorporates an externally controllable electric circuit for driving the operator head in accordance with an external electric signal generated by a controller within the device. The device's housing has a signal transmitting means for transmitting the electric signal, while the apparatus has a signal receiving means which comes into electrical interconnection with the signal transmitting means. The signal receiving means is disposed intermediate the height of the apparatus such that the electrical interconnection can be made within the height of the apparatus, requiring no extra height dimension to the system for the electrical interconnection.
    Type: Grant
    Filed: August 31, 2009
    Date of Patent: July 26, 2011
    Assignee: Panasonic Electric Works Co., Ltd.
    Inventors: Atsuhiro Saito, Jyuzaemon Iwasaki, Hiroyuki Kameoka, Yasuo Ibuki, Fumio Taniguchi, Kotaro Yanagi, Hiroshi Shigeta
  • Publication number: 20090314317
    Abstract: A cleaning system for cleaning an operator head of a hair removing apparatus such as a dry shaver. The system includes a cleaning device having a housing configured to hold the shaver upside down to place the operator head in a basin for cleaning the same with a liquid supplied from a tank. The apparatus incorporates an externally controllable electric circuit for driving the operator head in accordance with an external electric signal generated by a controller within the device. The device's housing has a signal transmitting means for transmitting the electric signal, while the apparatus has a signal receiving means which comes into electrical interconnection with the signal transmitting means. The signal receiving means is disposed intermediate the height of the apparatus such that the electrical interconnection can be made within the height of the apparatus, requiring no extra height dimension to the system for the electrical interconnection.
    Type: Application
    Filed: August 31, 2009
    Publication date: December 24, 2009
    Inventors: Atsuhiro Saito, Jyuzaemon Iwasaki, Hiroyuki Kameoka, Yasuo Ibuki, Fumio Taniguchi, Kotaro Yanagi, Hiroshi Shigeta
  • Patent number: 7588039
    Abstract: A cleaning system for cleaning an operator head of a hair removing apparatus such as a dry shaver. The system includes a cleaning device having a housing configured to hold the shaver upside down to place the operator head in a basin for cleaning the same with a liquid supplied from a tank. The apparatus incorporates an externally controllable electric circuit for driving the operator head in accordance with an external electric signal generated by a controller within the device. The device's housing has a signal transmitting means for transmitting the electric signal, while the apparatus has a signal receiving means which comes into electrical interconnection with the signal transmitting means. The signal receiving means is disposed intermediate the height of the apparatus such that the electrical interconnection can be made within the height of the apparatus, requiring no extra height dimension to the system for the electrical interconnection.
    Type: Grant
    Filed: January 19, 2004
    Date of Patent: September 15, 2009
    Assignee: Panasonic Electric Works Co., Ltd.
    Inventors: Atsuhiro Saito, Jyuzaemon Iwasaki, Hiroyuki Kameoka, Yasuo Ibuki, Fumio Taniguchi, Kotaro Yanagi, Hiroshi Shigeta
  • Patent number: 7350300
    Abstract: 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: Grant
    Filed: March 28, 2003
    Date of Patent: April 1, 2008
    Assignee: 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
  • Patent number: 7150285
    Abstract: A cleaning device for a hair removing apparatus such as a dry shaver has a basin that receives a shaver head and is supplied with a cleaning liquid for cleaning the head. A single pump is utilized for supplying the liquid from a tank to the basin. The tank is hermetically sealed and is selectively open to the atmosphere by way of an air valve. The valve and the pump are actuated in a controlled manner to selectively give a supply mode for supplying the liquid to the basin from the tank and a recovery mode for recovering the liquid from the basin to the tank.
    Type: Grant
    Filed: January 15, 2004
    Date of Patent: December 19, 2006
    Assignee: Matsushita Electric Works, Ltd.
    Inventors: Atsuhiro Saito, Jyuzaemon Iwasaki, Hiroyuki Kameoka, Yasuo Ibuki, Fumio Taniguchi, Kotaro Yanagi, Hiroshi Shigeta
  • Publication number: 20060162749
    Abstract: A cleaning device has a basin that receives an operator head of the hair removing apparatus, a tank storing a volume of a cleaning liquid, and a pump supplying the liquid from the tank to the basin for cleaning the operator head. A drip pan is formed separately from the tank and is disposed underneath the basin for collecting the liquid dripping from the basin as well as contaminants dislodged from the operator head. The drip pan is connected to the tank so as to return the liquid from within the drip pan to the tank under the action of the pump. A filter is provided in the drip pan for removing the contaminants from the liquid so that the filter can be cleaned or replaced without involving the tank and the liquid contained therein.
    Type: Application
    Filed: January 19, 2004
    Publication date: July 27, 2006
    Inventors: Atsuhiro Saito, Koji Osada, Jyuzaemon Iwasaki, Hiroyuki Kameoka, Yasuo Ibuki, Fumio Taniguchi, Kotaro Yanagi, Hiroshi Shigeta
  • Publication number: 20060011225
    Abstract: A cleaning system for cleaning an operator head of a hair removing apparatus such as a dry shaver. The system includes a cleaning device having a housing configured to hold the shaver upside down to place the operator head in a basin for cleaning the same with a liquid supplied from a tank. The apparatus incorporates an externally controllable electric circuit for driving the operator head in accordance with an external electric signal generated by a controller within the device. The device's housing has a signal transmitting means for transmitting the electric signal, while the apparatus has a signal receiving means which comes into electrical interconnection with the signal transmitting means. The signal receiving means is disposed intermediate the height of the apparatus such that the electrical interconnection can be made within the height of the apparatus, requiring no extra height dimension to the system for the electrical interconnection.
    Type: Application
    Filed: January 19, 2004
    Publication date: January 19, 2006
    Inventors: Atsuhiro Saito, Mikihiro Yamashita, Jyuzaemon Iwasaki, Hiroyuki Kameoka, Yasuo Ibuki, Fumio Taniguchi, Kotaro Yanagi, Hiroshi Shigeta
  • Publication number: 20050229400
    Abstract: 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: Application
    Filed: March 28, 2003
    Publication date: October 20, 2005
    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