Patents by Inventor Shinobu Fujikawa

Shinobu Fujikawa 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: 8048049
    Abstract: A sanitary napkin includes a napkin body having a liquid-absorbent layer for absorbing and retaining liquid and a projection projecting from a body surface of the napkin body. The projection is secured at laterally spaced base ends to the body surface of the napkin body. A distance between the base ends varies longitudinally of the projection. A height of the projection from the body surface of the napkin body decreases with increasing the distance between the base ends.
    Type: Grant
    Filed: December 1, 2005
    Date of Patent: November 1, 2011
    Assignee: Uni-Charm Corporation
    Inventors: Shinobu Fujikawa, Toshiyuki Tanio, Kenichiro Kuroda, Wataru Yoshimasa
  • Patent number: 7931639
    Abstract: The invention provides a panty realizing easy fit of a sanitary napkin for night use to a crotch portion, preventing the napkin from shifting out of position, alleviating digging into the crotch portion, and thus being comfortable to wear without giving feeling of constriction to the wearer. The panty includes a front part, a back part, a crotch part provided so as to bridge between the front part and the back part, a slightly elastic member is provided at the substantially center area of the back part, a highly elastic member is provided from a back parts lifting member to the entire area of the front part except for the waist hold part, a fixing member is provided on the substantially center area of the front part, a crotch lifting member is provided at the substantially center area of the crotch part.
    Type: Grant
    Filed: July 25, 2008
    Date of Patent: April 26, 2011
    Assignee: Uni-Charm Corporation
    Inventors: Ayami Suga, Shinobu Fujikawa, Hideki Kondo
  • Patent number: 7930770
    Abstract: The invention provides a panty realizing easy fit of a sanitary napkin for night use to a crotch portion, preventing the napkin from shifting out of position, alleviating digging into the crotch portion, and thus being comfortable to wear without giving feeling of constriction to the wearer. The panty includes a front part, a back part, a crotch part provided so as to bridge between the front part and the back part, a slightly elastic member is provided at the substantially center area of the back part, a highly elastic member is provided from a back parts lifting member to the entire area of the front part except for the waist hold part, a fixing member is provided on the substantially center area of the front part, a crotch lifting member is provided at the substantially center area of the crotch part.
    Type: Grant
    Filed: July 25, 2008
    Date of Patent: April 26, 2011
    Assignee: Uni-Charm Corporation
    Inventors: Ayami Suga, Shinobu Fujikawa, Hideki Kondo
  • Patent number: 7648490
    Abstract: A sanitary napkin includes: a napkin body having a liquid-absorbent layer for absorbing and retaining liquid; and first and second projections each exerting an elastic contractive force between longitudinally opposing front and rear ends to concavely curve the body surface of the napkin body and raise itself from the body surface of the napkin body. The napkin body has an overlap region where the second projections lie on laterally opposite sides of the first projection.
    Type: Grant
    Filed: November 28, 2005
    Date of Patent: January 19, 2010
    Assignee: Uni-Charm Corporation
    Inventors: Kenichiro Kuroda, Wataru Yoshimasa, Toshiyuki Tanio, Shinobu Fujikawa
  • Patent number: 7621899
    Abstract: A sanitary napkin includes a main body having a liquid-absorbent layer for absorbing and retaining liquid and a projection disposed on a body surface of the main body. At least a portion of the projection is separably fixed to the body surface of the main body through a temporarily fixing means.
    Type: Grant
    Filed: April 11, 2006
    Date of Patent: November 24, 2009
    Assignee: Uni-Charm Corporation
    Inventors: Shinobu Fujikawa, Toshiyuki Tanio, Wataru Yoshimasa
  • Patent number: 7597690
    Abstract: A sanitary napkin includes a surface element that is formed of a liquid-permeable topsheet covering a liquid absorbent layer. The surface element is raised from the skin-side surface of a napkin body by an elastic force of an elastic member to form a protuberance having a front end and a rear end. The protuberance fits in the intergluteal cleft and prevents rearward leakage of menstrual blood.
    Type: Grant
    Filed: May 5, 2005
    Date of Patent: October 6, 2009
    Assignee: Uni-Charm Corporation
    Inventors: Toshiyuki Tanio, Wataru Yoshimasa, Kenichiro Kuroda, Shinobu Fujikawa
  • Patent number: 7594905
    Abstract: A sanitary napkin includes a napkin body containing a liquid absorbent layer and a three-dimensional structure is disposed on the skin-side surface of the napkin body. The three-dimensional structure is formed of a reinforcing member and a liquid-permeable sheet, and an elastic member is disposed along an apex to extend in a longitudinal direction. The reinforcing member has high-density portions and low-density portions alternating with each other in the longitudinal direction so that the apex can be shortened in the longitudinal direction by an elastic contractive force of the elastic member. Therefore, the napkin body can be easily kept curved.
    Type: Grant
    Filed: May 5, 2005
    Date of Patent: September 29, 2009
    Assignee: Uni-Charm Corporation
    Inventors: Toshiyuki Tanio, Wataru Yoshimasa, Kenichiro Kuroda, Shinobu Fujikawa
  • Patent number: 7530973
    Abstract: A sanitary napkin includes a napkin body containing a liquid absorbent layer and a three-dimensional structure is disposed on the skin-side surface of the napkin body. The three-dimensional structure is formed of an air-laid nonwoven fabric and a liquid-permeable sheet, and the air-laid nonwoven fabric is formed with upwardly extending compressed portions. The three-dimensional structure comes into close contact with the body's groove to effectively prevent lateral leakage of menstrual blood during sleep.
    Type: Grant
    Filed: May 5, 2005
    Date of Patent: May 12, 2009
    Assignee: Uni-Charm Corporation
    Inventors: Toshiyuki Tanio, Wataru Yoshimasa, Kenichiro Kuroda, Shinobu Fujikawa
  • Patent number: 7465297
    Abstract: A sanitary napkin includes: a napkin body having a liquid-absorbent layer for absorbing and retaining liquid; and a projection projecting from a body surface of the napkin body. The projection has an apex and a pair of side wall portions formed of a liquid-permeable material. The apex is spaced apart from the body surface of the napkin body and extends along a longitudinal centerline of the napkin body. The side wall portions connect at the apex and diverge toward the body surface of the napkin body. The apex and the side wall portions are different in stiffness. The side wall portions have a space therebetween and are permitted to deform and approach each other.
    Type: Grant
    Filed: November 30, 2005
    Date of Patent: December 16, 2008
    Assignee: Uni-Charm Corporation
    Inventors: Hitoshi Watanabe, Wataru Yoshimasa, Toshiyuki Tanio, Kenichiro Kuroda, Shinobu Fujikawa
  • Publication number: 20080282452
    Abstract: The invention provides a panty realizing easy fit of a sanitary napkin for night use to a crotch portion, preventing the napkin from shifting out of position, alleviating digging into the crotch portion, and thus being comfortable to wear without giving feeling of constriction to the wearer. The panty includes a front part, a back part, a crotch part provided so as to bridge between the front part and the back part, a slightly elastic member is provided at the substantially center area of the back part, a highly elastic member is provided from a back parts lifting member to the entire area of the front part except for the waist hold part, a fixing member is provided on the substantially center area of the front part, a crotch lifting member is provided at the substantially center area of the crotch part.
    Type: Application
    Filed: July 25, 2008
    Publication date: November 20, 2008
    Applicant: Uni-Charm Corporation
    Inventors: Ayami Suga, Shinobu Fujikawa, Hideki Kondo
  • Publication number: 20080282450
    Abstract: The invention provides a panty realizing easy fit of a sanitary napkin for night use to a crotch portion, preventing the napkin from shifting out of position, alleviating digging into the crotch portion, and thus being comfortable to wear without giving feeling of constriction to the wearer. The panty includes a front part, a back part, a crotch part provided so as to bridge between the front part and the back part, a slightly elastic member is provided at the substantially center area of the back part, a highly elastic member is provided from a back parts lifting member to the entire area of the front part except for the waist hold part, a fixing member is provided on the substantially center area of the front part, a crotch lifting member is provided at the substantially center area of the crotch part.
    Type: Application
    Filed: July 25, 2008
    Publication date: November 20, 2008
    Applicant: Uni-Charm Corporation
    Inventors: Ayami Suga, Shinobu Fujikawa, Hideki Kondo
  • Publication number: 20060282059
    Abstract: A sanitary napkin includes a main body having a liquid-absorbent layer for absorbing and retaining liquid and a projection disposed on a body surface of the main body. At least a portion of the projection is separably fixed to the body surface of the main body through a temporarily fixing means.
    Type: Application
    Filed: April 11, 2006
    Publication date: December 14, 2006
    Applicant: UNI-CHARM CORPORATION
    Inventors: Shinobu Fujikawa, Toshiyuki Tanio, Wataru Yoshimasa
  • Publication number: 20060142724
    Abstract: A sanitary napkin includes: a napkin body having a liquid-absorbent layer for absorbing and retaining liquid; and a projection projecting from a body surface of the napkin body. The projection has an apex and a pair of side wall portions formed of a liquid-permeable material. The apex is spaced apart from the body surface of the napkin body and extends along a longitudinal centerline of the napkin body. The side wall portions connect at the apex and diverge toward the body surface of the napkin body. The apex and the side wall portions are different in stiffness. The side wall portions have a space therebetween and are permitted to deform and approach each other.
    Type: Application
    Filed: November 30, 2005
    Publication date: June 29, 2006
    Applicant: Uni-Charm Corporation
    Inventors: Hitoshi Watanabe, Wataru Yoshimasa, Toshiyuki Tanio, Kenichiro Kuroda, Shinobu Fujikawa
  • Publication number: 20060142723
    Abstract: A sanitary napkin includes: a napkin body having a liquid-absorbent layer for absorbing and retaining liquid; and first and second projections each exerting an elastic contractive force between longitudinally opposing front and rear ends to concavely curve the body surface of the napkin body and raise itself from the body surface of the napkin body. The napkin body has an overlap region where the second projections lie on laterally opposite sides of the first projection.
    Type: Application
    Filed: November 28, 2005
    Publication date: June 29, 2006
    Applicant: Uni-Charm Corporation
    Inventors: Kenichiro Kuroda, Wataru Yoshimasa, Toshiyuki Tanio, Shinobu Fujikawa
  • Publication number: 20060142725
    Abstract: A sanitary napkin includes a napkin body having a liquid-absorbent layer for absorbing and retaining liquid and a projection projecting from a body surface of the napkin body. The projection is secured at laterally spaced base ends to the body surface of the napkin body. A distance between the base ends varies longitudinally of the projection. A height of the projection from the body surface of the napkin body decreases with increasing the distance between the base ends.
    Type: Application
    Filed: December 1, 2005
    Publication date: June 29, 2006
    Applicant: Uni-Charm Corporation
    Inventors: Shinobu Fujikawa, Toshiyuki Tanio, Kenichiro Kuroda, Wataru Yoshimasa
  • Publication number: 20050267433
    Abstract: A sanitary napkin includes a surface element that is formed of a liquid-permeable topsheet covering a liquid absorbent layer. The surface element is raised from the skin-side surface of a napkin body by an elastic force of an elastic member to form a protuberance having a front end and a rear end. The protuberance fits in the intergluteal cleft and prevents rearward leakage of menstrual blood.
    Type: Application
    Filed: May 5, 2005
    Publication date: December 1, 2005
    Applicant: Uni-Charm Corporation
    Inventors: Toshiyuki Tanio, Wataru Yoshimasa, Kenichiro Kuroda, Shinobu Fujikawa
  • Publication number: 20050267434
    Abstract: A sanitary napkin includes a napkin body containing a liquid absorbent layer and a three-dimensional structure is disposed on the skin-side surface of the napkin body. The three-dimensional structure is formed of a reinforcing member and a liquid-permeable sheet, and an elastic member is disposed along an apex to extend in a longitudinal direction. The reinforcing member has high-density portions and low-density portions alternating with each other in the longitudinal direction so that the apex can be shortened in the longitudinal direction by an elastic contractive force of the elastic member. Therefore, the napkin body can be easily kept curved.
    Type: Application
    Filed: May 5, 2005
    Publication date: December 1, 2005
    Applicant: Uni-Charm Corporation
    Inventors: Toshiyuki Tanio, Wataru Yoshimasa, Kenichiro Kuroda, Shinobu Fujikawa
  • Publication number: 20050267435
    Abstract: A sanitary napkin includes a napkin body containing a liquid absorbent layer and a three-dimensional structure is disposed on the skin-side surface of the napkin body. The three-dimensional structure is formed of an air-laid nonwoven fabric and a liquid-permeable sheet, and the air-laid nonwoven fabric is formed with upwardly extending compressed portions. The three-dimensional structure comes into close contact with the body's groove to effectively prevent lateral leakage of menstrual blood during sleep.
    Type: Application
    Filed: May 5, 2005
    Publication date: December 1, 2005
    Applicant: Uni-Charm Corporation
    Inventors: Toshiyuki Tanio, Wataru Yoshimasa, Kenichiro Kuroda, Shinobu Fujikawa
  • Publication number: 20050197643
    Abstract: The invention provides a panty realizing easy fit of a sanitary napkin for night use to a crotch portion, preventing the napkin from shifting out of position, alleviating digging into the crotch portion, and thus being comfortable to wear without giving feeling of constriction to the wearer. The panty includes a front part, a back part, a crotch part provided so as to bridge between the front part and the back part, a slightly elastic member is provided at the substantially center area of the back part, a highly elastic member is provided from a back parts lifting member to the entire area of the front part except for the waist hold part, a fixing member is provided on the substantially center area of the front part, a crotch lifting member is provided at the substantially center area of the crotch part.
    Type: Application
    Filed: March 7, 2005
    Publication date: September 8, 2005
    Applicant: Uni-Charm Corporation
    Inventors: Ayami Suga, Shinobu Fujikawa, Hideki Kondo