Patents by Inventor Keiji Yoshii

Keiji Yoshii 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: 20210275392
    Abstract: Provided is a steam heating mask (100) that includes a mask (110) which includes a mask body portion (101) covering a nose and a mouth of a wearer when wearing the mask, and a pair of ear hook portions (102) provided at both left and right ends of the mask body portion (101), and a steam generator (120) on the mask body portion (101), in which a proportion of an area occupied by the steam generator (120) is equal to or greater than 30% and equal to or less than 80% with respect to an area of an entire surface of the mask body portion (101) on a side of the wearer, the steam generator (120) accommodates inside a steam generating portion, the steam generator (120) includes a first sheet on a surface of the steam generating portion on the side of the wearer, and a second sheet on a surface opposite to the surface of the steam generating portion on the side of the wearer, a degree of air permeability of the first sheet is equal to or less than 7,000 sec/100 ml, and a degree of air permeability of the second sheet
    Type: Application
    Filed: May 21, 2021
    Publication date: September 9, 2021
    Applicant: KAO CORPORATION
    Inventors: Hideshi ODA, Yasuto Saita, Katsutoshi Hara, Keiji Yoshii
  • Patent number: 11045386
    Abstract: A steam heating mask having a mask body portion covering a nose and a mouth of a wearer when wearing the mask, a pair of ear hook portions provided at both left and right ends of the mask body portion, and a steam generator on the mask body portion, in which a proportion of an area occupied by the steam generator ranges from 30% to 80% with respect to an area of an entire surface of the mask body portion on a side of the wearer. The steam generator includes a first sheet on a surface of a steam generating portion on the side of the wearer with degree of air permeability being equal to or less than 7,000 sec/100 ml and a second sheet on a surface opposite to the surface of the steam generating portion with a degree of air permeability being greater than 8,000 sec/100 ml.
    Type: Grant
    Filed: June 10, 2015
    Date of Patent: June 29, 2021
    Assignee: KAO CORPORATION
    Inventors: Hideshi Oda, Yasuto Saita, Katsutoshi Hara, Keiji Yoshii
  • Patent number: 9125481
    Abstract: A massage brush (10) includes a base plate (12) that is curved in a rounded shape, a plurality of pressing protrusions (13) that protrude downward from the concave-shaped inner surface of the base plate (12), and a grip portion (20) that is connected to the center portion of the convex-shaped outer surface of the base plate (12). The base plate (12) is provided with a plurality of tongue-like sections (14) arranged at intervals in a circumferential direction and extending outward in a radial direction from the center portion of the base plate (12). The tongue-like sections protrude in a cantilever shape from base end portions (15) of the center portion by the presence of U-shaped through grooves (16) provided around the tongue-like sections other than the base end portions (15). The pressing protrusions (13) protrude downward from the tip portions of the tongue-like sections (14).
    Type: Grant
    Filed: September 15, 2010
    Date of Patent: September 8, 2015
    Assignee: Kao Corporation
    Inventors: Toshio Watanabe, Keiji Yoshii
  • Patent number: 8533894
    Abstract: A scalp washing device includes a base and projections for washing projected from a brush surface of the base. Each of the projections includes a root portion on a side of the base having a circular shape in cross-section, a middle portion including a tip surface having a flattened shape in cross-section, and at least a pair of conical tip projections each having a tip chamfered to have a curved surface and provided on the tip surface. The middle portion has a cross-sectional shape changing from a circular shape to a flattened shape from a side of the root portion to a side of the tip surface.
    Type: Grant
    Filed: July 29, 2010
    Date of Patent: September 17, 2013
    Assignee: Kao Corporation
    Inventors: Toshio Watanabe, Keiji Yoshii
  • Patent number: 8394134
    Abstract: A heat generating device includes an air-permeable first side located proximal to a wearer's body, a second side located distal to a wearer's body, and a heat generating member between the two sides. The second side includes an adhesive layer for attaching the device to a garment. The first side is formed of a nonwoven fabric having an uneven surface topography. The nonwoven fabric includes a first fiber layer, inclusive of a first surface of the fabric, and a second fiber layer, inclusive of a second surface of the fabric, partly bonded to each other and including a large number of protrusions and recesses on the side of the first fiber layer. The first surface is used as the first side.
    Type: Grant
    Filed: February 8, 2008
    Date of Patent: March 12, 2013
    Assignee: Kao Corporation
    Inventors: Yuki Hidaka, Atsushi Suzuki, Ichiro Sakamoto, Keiji Yoshii
  • Publication number: 20120204369
    Abstract: A massage brush (10) includes a base plate (12) that is curved in a rounded shape, a plurality of pressing protrusions (13) that protrude downward from the concave-shaped inner surface of the base plate (12), and a grip portion (20) that is connected to the center portion of the convex-shaped outer surface of the base plate (12). The base plate (12) is provided with a plurality of tongue-like sections (14) arranged at intervals in a circumferential direction and extending outward in a radial direction from the center portion of the base plate (12). The tongue-like sections protrude in a cantilever shape from base end portions (15) of the center portion by the presence of U-shaped through grooves (16) provided around the tongue-like sections other than the base end portions (15). The pressing protrusions (13) protrude downward from the tip portions of the tongue-like sections (14).
    Type: Application
    Filed: September 15, 2010
    Publication date: August 16, 2012
    Applicant: KAO COPORATION
    Inventors: Toshio Watanabe, Keiji Yoshii
  • Publication number: 20120124764
    Abstract: A scalp washing device includes a base and projections for washing projected from a brush surface of the base. Each of the projections includes a root portion on a side of the base having a circular shape in cross-section, a middle portion including a tip surface having a flattened shape in cross-section, and at least a pair of conical tip projections each having a tip chamfered to have a curved surface and provided on the tip surface. The middle portion has a cross-sectional shape changing from a circular shape to a flattened shape from a side of the root portion to a side of the tip surface.
    Type: Application
    Filed: July 29, 2010
    Publication date: May 24, 2012
    Applicant: Kao Corporation
    Inventors: Toshio Watanabe, Keiji Yoshii
  • Publication number: 20100023099
    Abstract: A heat generating device includes an air-permeable first side located proximal to a wearer's body, a second side located distal to a wearer's body, and a heat generating member between the two sides. The second side includes an adhesive layer for attaching the device to a garment. The first side is formed of a nonwoven fabric having an uneven surface topography. The nonwoven fabric includes a first fiber layer, inclusive of a first surface of the fabric, and a second fiber layer, inclusive of a second surface of the fabric, partly bonded to each other and including a large number of protrusions and recesses on the side of the first fiber layer. The first surface is used as the first side.
    Type: Application
    Filed: February 8, 2008
    Publication date: January 28, 2010
    Applicant: Kao Corporation
    Inventors: Yuki Hidaka, Atsushi Suzuki, Ichiro Sakamoto, Keiji Yoshii
  • Patent number: D632486
    Type: Grant
    Filed: January 29, 2010
    Date of Patent: February 15, 2011
    Assignee: Kao Corporation
    Inventors: Toshio Watanabe, Keiji Yoshii
  • Patent number: D632487
    Type: Grant
    Filed: January 29, 2010
    Date of Patent: February 15, 2011
    Assignee: Kao Corporation
    Inventors: Toshio Watanabe, Keiji Yoshii
  • Patent number: D423712
    Type: Grant
    Filed: December 28, 1998
    Date of Patent: April 25, 2000
    Assignee: Kao Kabushiki Kaisha
    Inventors: Makoto Aoki, Keiji Yoshii, Kumiko Tajima, Koichi Ishida, Takuji Kume
  • Patent number: D426019
    Type: Grant
    Filed: December 28, 1998
    Date of Patent: May 30, 2000
    Assignee: Kao Corporation
    Inventors: Makoto Aoki, Keiji Yoshii, Kumiko Tajima, Koichi Ishida, Takuji Kume
  • Patent number: D704052
    Type: Grant
    Filed: July 30, 2013
    Date of Patent: May 6, 2014
    Assignee: Kao Corporation
    Inventors: Keiji Yoshii, Noboru Chiba