Patents by Inventor Hirotoshi Tawara

Hirotoshi Tawara 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).

  • Patent number: 9468350
    Abstract: A cleaning tool 10 having at least one side opening 41 and a cleaning roll 50 at a cleaning head 30, wherein a dust guide surface 42 for leading dust from a surface to be cleaned to the side opening 41 is provided along a lower end of the side opening 41; the cleaning roll 50 is formed of an elastic roll having a surface covered with a thin film 53, and is rotatably arranged in a position to close the side opening 41 and to be in contact with the surface to be cleaned; and the cleaning roll 50 rotating according to movement of the cleaning head 30 takes the dust through the dust guide surface 42 into the side opening 41 while pushing the dust against the surface to be cleaned.
    Type: Grant
    Filed: November 30, 2012
    Date of Patent: October 18, 2016
    Assignee: KAO CORPORATION
    Inventors: Hirotoshi Tawara, Yukio Noda, Satoshi Nagai
  • Publication number: 20140325774
    Abstract: A cleaning tool 10 having at least one side opening 41 and a cleaning roll 50 at a cleaning head 30, wherein a dust guide surface 42 for leading dust from a surface to be cleaned to the side opening 41 is provided along a lower end of the side opening 41; the cleaning roll 50 is formed of an elastic roll having a surface covered with a thin film 53, and is rotatably arranged in a position to close the side opening 41 and to be in contact with the surface to be cleaned; and the cleaning roll 50 rotating according to movement of the cleaning head 30 takes the dust through the dust guide surface 42 into the side opening 41 while pushing the dust against the surface to be cleaned.
    Type: Application
    Filed: November 30, 2012
    Publication date: November 6, 2014
    Applicant: KAO CORPORATION
    Inventors: Hirotoshi Tawara, Yukio Noda, Satoshi Nagai
  • Patent number: 8813298
    Abstract: In a cleaning tool 1, a lock piece 50 provided to the other of a handle 10 and a main body 20 can be switched between a lock position and a lock release position, the lock piece 50 positioned in the lock position butts against a stopper face 41D of an engagement member 41 to retain the engagement member 41 in a position of engagement with the recessed face 36, and the lock piece 50 positioned in the lock release position separates from the stopper face 41D of the engagement member 41 to allow the engagement member 41 to resiliently move forward and backward.
    Type: Grant
    Filed: November 1, 2013
    Date of Patent: August 26, 2014
    Assignee: Kao Corporation
    Inventor: Hirotoshi Tawara
  • Publication number: 20140053356
    Abstract: In a cleaning tool 1, a lock piece 50 provided to the other of a handle 10 and a main body 20 can be switched between a lock position and a lock release position, the lock piece 50 positioned in the lock position butts against a stopper face 41D of an engagement member 41 to retain the engagement member 41 in a position of engagement with the recessed face 36, and the lock piece 50 positioned in the lock release position separates from the stopper face 41D of the engagement member 41 to allow the engagement member 41 to resiliently move forward and backward.
    Type: Application
    Filed: November 1, 2013
    Publication date: February 27, 2014
    Applicant: Kao Corporation
    Inventor: Hirotoshi TAWARA
  • Patent number: 8595884
    Abstract: In a cleaning tool 1, a lock piece 50 provided to the other of a handle 10 and a main body 20 can be switched between a lock position and a lock release position, the lock piece 50 positioned in the lock position butts against a stopper face 41D of an engagement member 41 to retain the engagement member 41 in a position of engagement with the recessed face 36, and the lock piece 50 positioned in the lock release position separates from the stopper face 41D of the engagement member 41 to allow the engagement member 41 to resiliently move forward and backward.
    Type: Grant
    Filed: July 30, 2008
    Date of Patent: December 3, 2013
    Assignee: Kao Corporation
    Inventor: Hirotoshi Tawara
  • Publication number: 20100186181
    Abstract: In a cleaning tool 1, a lock piece 50 provided to the other of a handle 10 and a main body 20 can be switched between a lock position and a lock release position, the lock piece 50 positioned in the lock position butts against a stopper face 41D of an engagement member 41 to retain the engagement member 41 in a position of engagement with the recessed face 36, and the lock piece 50 positioned in the lock release position separates from the stopper face 41D of the engagement member 41 to allow the engagement member 41 to resiliently move forward and backward.
    Type: Application
    Filed: July 30, 2008
    Publication date: July 29, 2010
    Applicant: KAO CORPORATION
    Inventor: Hirotoshi Tawara
  • Patent number: 7300077
    Abstract: A pipe connecting structure for connecting a pair of sleeve-like pipes integrally in an axial direction by inserting a male side end portion of one of the pair of sleeve-like pipes into an opening of a female side end portion of the other sleeve-like pipe so as to serve as a connecting portion, wherein a male side protrusion insertion hole and a female side protrusion insertion hole are formed in a peripheral surface of each end portion of a pair of the sleeve-like pipes which constitute the connecting portion, the protrusion insertion holes are brought into coincident with each other, an engagement protrusion is inserted in the protrusion insertion holes and engaged therewith, and such an engagement state of the engagement protrusion is retained by pressing the engagement protrusion with a sleeve member disposed in such a manner as to cover the connecting portion.
    Type: Grant
    Filed: October 8, 2004
    Date of Patent: November 27, 2007
    Assignee: Kao Corporation
    Inventors: Hirotoshi Tawara, Makoto Kato
  • Patent number: 7134160
    Abstract: In a cleaning device 10, a dustpan portion 23 is supported to a frame 15 so as to freely oscillate independently from a scraping up body 16 in a vertical direction, and a dust receiving portion 23C of the dustpan portion 23 is supported so as to be disconnected from the frame 15.
    Type: Grant
    Filed: April 2, 2004
    Date of Patent: November 14, 2006
    Assignee: Kao Corporation
    Inventors: Hirotoshi Tawara, Yukio Noda, Tokuji Noguchi
  • Patent number: 7003840
    Abstract: In a cleaning device, the scraping up body and the rotating body rolling the adhesive roll are rotatably supported to the frame, and the adhesive roll is rotatably arranged on the scraping up body and the rotating body in parallel.
    Type: Grant
    Filed: April 9, 2004
    Date of Patent: February 28, 2006
    Assignee: Kao Corporation
    Inventors: Hirotoshi Tawara, Yukio Noda
  • Patent number: 7004671
    Abstract: A pipe connecting structure for connecting a pair of sleeve-like pipes integrally in an axial direction by inserting a male side end portion of one of the pair of sleeve-like pipes into an opening of a female side end portion of the other sleeve-like pipe so as to serve as a connecting portion, wherein a male side protrusion insertion hole and a female side protrusion insertion hole are formed in a peripheral surface of each end portion of a pair of the sleeve-like pipes which constitute the connecting portion, the protrusion insertion holes are brought into coincident with each other, an engagement protrusion is inserted in the protrusion insertion holes and engaged therewith, and such an engagement state of the engagement protrusion is retained by pressing the engagement protrusion with a sleeve member disposed in such a manner as to cover the connecting portion.
    Type: Grant
    Filed: June 21, 2002
    Date of Patent: February 28, 2006
    Assignee: Kao Corporation
    Inventors: Hirotoshi Tawara, Makoto Kato
  • Publication number: 20050040644
    Abstract: A pipe connecting structure for connecting a pair of sleeve-like pipes integrally in an axial direction by inserting a male side end portion of one of the pair of sleeve-like pipes into an opening of a female side end portion of the other sleeve-like pipe so as to serve as a connecting portion, wherein a male side protrusion insertion hole and a female side protrusion insertion hole are formed in a peripheral surface of each end portion of a pair of the sleeve-like pipes which constitute the connecting portion, the protrusion insertion holes are brought into coincident with each other, an engagement protrusion is inserted in the protrusion insertion holes and engaged therewith, and such an engagement state of the engagement protrusion is retained by pressing the engagement protrusion with a sleeve member disposed in such a manner as to cover the connecting portion.
    Type: Application
    Filed: October 8, 2004
    Publication date: February 24, 2005
    Applicant: KAO CORPORATION
    Inventors: Hirotoshi Tawara, Makoto Kato
  • Publication number: 20040187236
    Abstract: In a cleaning device, the scraping up body and the rotating body rolling the adhesive roll are rotatably supported to the frame, and the adhesive roll is rotatably arranged on the scraping up body and the rotating body in parallel.
    Type: Application
    Filed: April 9, 2004
    Publication date: September 30, 2004
    Applicant: KAO CORPORATION
    Inventors: Hirotoshi Tawara, Yukio Noda
  • Publication number: 20040181888
    Abstract: In a cleaning device 10, a dustpan portion 23 is supported to a frame 15 so as to freely oscillate independently from a scraping up body 16 in a vertical direction, and a dust receiving portion 23C of the dustpan portion 23 is supported so as to be disconnected from the frame 15.
    Type: Application
    Filed: April 2, 2004
    Publication date: September 23, 2004
    Applicant: KAO CORPORATION
    Inventors: Hirotoshi Tawara, Yukio Noda, Tokuji Noguchi
  • Patent number: 6783600
    Abstract: In a cleaning device, the scraping up body and the rotating body rolling the adhesive roll are rotatably supported to the frame, and the adhesive roll is rotatably arranged on the scraping up body and the rotating body in parallel.
    Type: Grant
    Filed: October 31, 2001
    Date of Patent: August 31, 2004
    Assignee: Kao Corporation
    Inventors: Hirotoshi Tawara, Yukio Noda
  • Patent number: 6719217
    Abstract: The invention provides an air fragrance device (10) having a fan (26) driven by a motor (24) and provided in a blowing chamber (35) and an air fragrance tank (13) having a fragrant agent (1) therein and communicated with the blowing chamber (35), in which the blowing chamber (35) is arranged below the air fragrance tank (13).
    Type: Grant
    Filed: June 22, 2001
    Date of Patent: April 13, 2004
    Assignee: Kao Corporation
    Inventors: Hirotoshi Tawara, Takashi Yamada, Fumihiko Yoshiro
  • Publication number: 20040049869
    Abstract: In a cleaning device 10, a scraping up body 16 and the contact rotating body 18 being rotatably supported to a frame 15 in parallel; and an adhesive roll 21 astride the scraping up body 16 and the contact rotating body 18, being put on the scraping up body 16 and the contact rotating body 18 wherein an adhesive sheet 21A of the adhesive roll 21 is wound around a core 21B, and an initial outer diameter of the adhesive roll 21 is set to be equal to or less than 40 mm.
    Type: Application
    Filed: August 8, 2003
    Publication date: March 18, 2004
    Inventors: Hirotoshi Tawara, Yukio Noda, Akihito Shizuno, Takehiko Uematsu
  • Publication number: 20030001387
    Abstract: A pipe connecting structure for connecting a pair of sleeve-like pipes integrally in an axial direction by inserting a male side end portion of one of the pair of sleeve-like pipes into an opening of a female side end portion of the other sleeve-like pipe so as to serve as a connecting portion, wherein a male side protrusion insertion hole and a female side protrusion insertion hole are formed in a peripheral surface of each end portion of a pair of the sleeve-like pipes which constitute the connecting portion, the protrusion insertion holes are brought into coincident with each other, an engagement protrusion is inserted in the protrusion insertion holes and engaged therewith, and such an engagement state of the engagement protrusion is retained by pressing the engagement protrusion with a sleeve member disposed in such a manner as to cover the connecting portion.
    Type: Application
    Filed: June 21, 2002
    Publication date: January 2, 2003
    Applicant: KAO CORPORATION
    Inventors: Hirotoshi Tawara, Makoto Kato
  • Patent number: D510467
    Type: Grant
    Filed: May 28, 2002
    Date of Patent: October 4, 2005
    Assignee: Kao Corporation
    Inventors: Hidesato Kizaki, Hirotoshi Tawara, Yukio Noda
  • Patent number: D604468
    Type: Grant
    Filed: July 28, 2008
    Date of Patent: November 17, 2009
    Assignee: Kao Corporation
    Inventors: Tomohisa Hirata, Hirotoshi Tawara
  • Patent number: D644386
    Type: Grant
    Filed: August 10, 2010
    Date of Patent: August 30, 2011
    Assignee: Kao Corporation
    Inventors: Hirotoshi Tawara, Susumu Fujinami, Tomohisa Hirata