Patents by Inventor Akiko Tatsukawa

Akiko Tatsukawa 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: 9452092
    Abstract: Each side wall part on a main body part includes a strip-like pouch part and an elastic member. The pouch part includes a first strip part extending in the longitudinal direction, and a second strip part disposed between the first strip part and the main body part and having both its edges along the longitudinal direction connecting to both edges of the first strip part. The elastic member is bonded to the first strip part linearly in the longitudinal direction. A standing part is formed in the pouch part by contraction of the elastic member. In each end part of the pouch part, a state where the pouch part overlaps with the main body part is maintained. Therefore, the height of the standing part changes gradually in a boundary part between the end part and the central part, which allows the standing part to fit against the wearer's skin.
    Type: Grant
    Filed: May 23, 2012
    Date of Patent: September 27, 2016
    Assignee: LIVEDO CORPORATION
    Inventors: Hirofumi Miyake, Miyuki Okawa, Akiko Tatsukawa
  • Patent number: 9066835
    Abstract: The present invention provides an absorbent article that allows full use of the absorption performance of an absorbent polymer without inhibiting the swelling of the absorbent polymer due to the absorption of excreted body fluids, and that can be biodegraded with efficiency when it is disposed after use by burial in the soil or the like. The absorbent article includes at least one inner bag-like member, an absorbent polymer, and an outer bag-like member. The inner bag-like member is formed into a thin and substantially sheet-like form of a sheet having biodegradability and fluid permeability, and includes multiple accommodation spaces that are detached from the outside and separated from one another. The absorbent polymer has biodegradability and a substantially granular or powder form and is contained in each of the accommodation spaces in the inner bag-like member so as to be freely movable within the accommodation spaces.
    Type: Grant
    Filed: March 16, 2010
    Date of Patent: June 30, 2015
    Assignee: LIVEDO CORPORATION
    Inventors: Miyuki Okawa, Akiko Tatsukawa, Hirofumi Miyake
  • Patent number: 8834442
    Abstract: A diaper cover having a front part, a back part and an intermediate part located between the front part and the back part in a front-back direction, a right waist part and a left waist part extending from the back part in a width direction, and a right flap part and a left flap part extending from the front part in the width direction. The right flap part and/or the left flap part is provided with a hook member having a plurality of hooks. The hook member has a first region in which the hooks are oriented in one direction and a second region in which the hooks are oriented in another direction; and the first region and the second region are arranged such that a hypothetical straight line extending in the front-back direction in the right flap part or the left flap part crosses both the first region and the second region.
    Type: Grant
    Filed: April 12, 2011
    Date of Patent: September 16, 2014
    Assignee: Livedo Corporation
    Inventors: Hirofumi Miyake, Akiko Tatsukawa, Saeko Okuto
  • Publication number: 20140128829
    Abstract: Each side wall part on a main body part includes a strip-like pouch part and an elastic member. The pouch part includes a first strip part extending in the longitudinal direction, and a second strip part disposed between the first strip part and the main body part and having both its edges along the longitudinal direction connecting to both edges of the first strip part. The elastic member is bonded to the first strip part linearly in the longitudinal direction. A standing part is formed in the pouch part by contraction of the elastic member. In each end part of the pouch part, a state where the pouch part overlaps with the main body part is maintained. Therefore, the height of the standing part changes gradually in a boundary part between the end part and the central part, which allows the standing part to fit against the wearer's skin.
    Type: Application
    Filed: May 23, 2012
    Publication date: May 8, 2014
    Inventors: Hirofumi Miyake, Miyuki Okawa, Akiko Tatsukawa
  • Patent number: 8556875
    Abstract: The invention provides an absorbent laminate for absorbing a body fluid and usable for a disposable absorbent article, in which the absorbent laminate comprises an upper layer absorbent body and a lower layer absorbent body, the upper layer absorbent body has at least one opening part extended continuously or discontinuously in the longitudinal direction of the upper layer absorbent body, and the maximum width W1 of the opening part is 40% or less of the minimum width W2 of the upper layer absorbent body. The invention also provides a disposable absorbent article provided with the absorbent laminate.
    Type: Grant
    Filed: January 24, 2007
    Date of Patent: October 15, 2013
    Assignee: Livedo Corporation
    Inventors: Yuki Takahashi, Akiko Tatsukawa
  • Publication number: 20130144243
    Abstract: In an absorbent product, a front pocket, a pair of side pockets and a rear pocket are formed between a back sheet member, and a front absorbent core, a pair of side absorbent cores and a rear absorbent core, and excrement which has passed through an opening is collected therein. In the absorbent product, the side absorbent cores are bonded on inner surfaces of standing gather parts. Thus, since the standing gather parts stand up, the side absorbent cores become far away from the back sheet member. Side wall parts of the side pockets have structure where the side absorbent cores are bonded on the inner surfaces of side sheets and outer covering sheet. Thus, it is possible to increase stiffness of the side wall parts of the side pockets, to thereby suppress deformation of the side wall parts due to a weight of excrement collected in the side pockets.
    Type: Application
    Filed: April 13, 2011
    Publication date: June 6, 2013
    Applicant: LIVEDO CORPORATION
    Inventors: Hirofumi Miyake, Akiko Tatsukawa
  • Patent number: 8382733
    Abstract: In an absorbent product (1), a front pocket (26) and a rear pocket (27) are formed between a front absorbent core (212) and a rear absorbent core (222) and a back sheet (23). A pair of side sheets (3) are located on both side portions of an absorbent sheet member (20) having an opening (25). Both absorbent cores are raised so that they become spaced apart from the back sheet (23) by contraction of a third elastic member (35) bonded to an inner edge (331) of a bonded part (33) of each side sheet (3). It is possible to keep the distance larger in a thickness direction between the absorbent sheet member (20) and the back sheet (23) in the vicinity of the opening (25) and fit a portion around the opening (25) of the absorbent sheet member (20) to a wearer.
    Type: Grant
    Filed: November 5, 2009
    Date of Patent: February 26, 2013
    Assignee: Livedo Corporation
    Inventors: Miyuki Okawa, Akiko Tatsukawa, Hirofumi Miyake
  • Publication number: 20130025020
    Abstract: A wearing article comprising a main unit having a fastening part, and a positioning sheet member having one surface and the other surface, wherein the one surface of the positioning sheet member is detachably joined to the fastening part, and the other surface of the positioning sheet is provided with a fixing means which is capable of being fixed to the main unit when the wearing article is worn.
    Type: Application
    Filed: May 27, 2011
    Publication date: January 31, 2013
    Inventors: Hirofumi Miyake, Miyuki Okawa, Akiko Tatsukawa
  • Publication number: 20120316535
    Abstract: A diaper cover comprising a front part, a back part and an intermediate part located between the front part and the back part in a front-back direction, a right waist part and a left waist part extending from the back part in a width direction, and a right flap part and a left flap part extending from the front part in the width direction, wherein: the right flap part and/or the left flap part is provided with a hook member having a plurality of hooks; the hook member has a first region in which the hooks are oriented in one direction and a second region in which the hooks are oriented in another direction; and the first region and the second region are arranged such that a hypothetical straight line extending in the front-back direction in the right flap part or the left flap part crosses both the first region and the second region.
    Type: Application
    Filed: April 12, 2011
    Publication date: December 13, 2012
    Inventors: Hirofumi Miyake, Akiko Tatsukawa, Saeko Okuto
  • Publication number: 20120283687
    Abstract: A diaper cover comprising a front part, a back part and an intermediate part located between the front part and the back part in a front-back direction, a right waist part and a left waist part extending from the back part in a width direction, and a right flap part and a left flap part extending from the front part in the width direction, wherein each of the right flap part and the left flap part is provided with a first attachment, the right flap part, the left flap part and the intermediate part are stretchable, and the first attachment is attachable to a position on a dorsal side of a wearer in a state where the right flap part and the left flap part are stretched.
    Type: Application
    Filed: January 28, 2011
    Publication date: November 8, 2012
    Inventors: Hirofumi Miyake, Akiko Tatsukawa
  • Patent number: 8235960
    Abstract: In an absorbent product in which an absorbent sheet member having an opening and a back sheet are overlapped, a rear pocket is formed between a rear absorbent core of the absorbent sheet member and the back sheet, and side pockets are formed on both sides of the opening. By contracting elastic members bonded to a core covering sheet on the both sides of the opening, the core covering sheet of the absorbent sheet member and the back sheet largely stand up in each side pocket, and the rear absorbent core is raised upward. Thus, it is possible to keep the distance large in a thickness direction between the absorbent sheet member and the back sheet in the vicinity of the opening and to fit a portion around the opening of the absorbent sheet member to a wearer.
    Type: Grant
    Filed: May 12, 2009
    Date of Patent: August 7, 2012
    Assignee: Livedo Corporation
    Inventors: Akiko Tatsukawa, Hirofumi Miyake
  • Publication number: 20120197228
    Abstract: A urine receiving pad 1 has a substantially rectangular bag body 10. The bag body 10 has a side edge portion 16 extending in a lengthwise direction thereof, and a top edge portion 15 connected to the side edge portion 16 and extending in a widthwise direction perpendicular to the lengthwise direction. In the side edge portion 16, an opening 10P opening in the widthwise direction is provided at the side edge portion 16a which is continuous with the top edge portion 15. Since a male genitalia P is inserted through the opening 10P along the widthwise direction, a bottom portion 10c tends to be positioned below the male genitalia P. This can prevent a portion near the bottom portion 10c from being largely folded even when a diaper, underwear, or the like, is worn. Thus, an overflow of urine from the opening 10P can be effectively suppressed.
    Type: Application
    Filed: November 22, 2010
    Publication date: August 2, 2012
    Inventors: Hirofumi Miyake, Akiko Tatsukawa
  • Publication number: 20120046633
    Abstract: The absorbent product for male comprises a bag-like main body part having an opening at an upper end, and two hydrophilic internal sheets which are band-like members located in the main body part. An upper end part of each internal sheet is fixed on an upper part of the main body part and the other portions are not bonded to the main body part. Internal sheet elastic members each extending in an up-down direction are bonded to each internal sheet, and by contraction of these members, gathers are formed in the internal sheet. In the absorbent product, since urine moves in the internal sheet comparatively slowly through the gathers formed in the internal sheet, a time required for the urine to reach the bottom part of the bag part can be increased. As the result, a large area of absorbent part can be utilized to absorb the urine effectively.
    Type: Application
    Filed: May 11, 2010
    Publication date: February 23, 2012
    Inventors: Miyuki Okawa, Akiko Tatsukawa, Hirofumi Miyake
  • Publication number: 20120035565
    Abstract: The present invention provides an absorbent article that allows full use of the absorption performance of an absorbent polymer, and that can be biodegraded with efficiency when it is disposed after use by burial in the soil or the like. The absorbent article includes at least one inner bag-like member, an absorbent polymer, and an outer bag-like member. The inner bag-like member is formed into a thin and substantially sheet-like form of a sheet having biodegradability and fluid permeability, and includes multiple accommodation spaces. The absorbent polymer has biodegradability and a substantially granular or powder form and is contained in each of the accommodation spaces in the inner bag-like member so as to be freely movable within the accommodation spaces. The outer bag-like member is formed of a sheet having biodegradability and fluid permeability and contains an inner bag-like member in either a layered or folded state.
    Type: Application
    Filed: March 16, 2010
    Publication date: February 9, 2012
    Inventors: Miyuki Okawa, Akiko Tatsukawa, Hirofumi Miyake
  • Publication number: 20100121294
    Abstract: In an absorbent product (1), a front pocket (26) and a rear pocket (27) are formed between a front absorbent core (212) and a rear absorbent core (222) and a back sheet (23). A pair of side sheets (3) are located on both side portions of an absorbent sheet member (20) having an opening (25). Both absorbent cores are raised so that they should become apart from the back sheet (23) by contraction of a third elastic member (35) bonded to an inner edge (331) of a bonded part (33) of each side sheet (3). It is possible to keep the distance larger in thickness direction between the absorbent sheet member (20) and the back sheet (23) in the vicinity of the opening (25) and fit a portion around the opening (25) of the absorbent sheet member (20) to a wearer.
    Type: Application
    Filed: November 5, 2009
    Publication date: May 13, 2010
    Inventors: Miyuki OKAWA, Akiko Tatsukawa, Hirofumi Miyake
  • Publication number: 20090287177
    Abstract: In an absorbent product in which an absorbent sheet member having an opening and a back sheet are overlapped, a rear pocket is formed between a rear absorbent core of the absorbent sheet member and the back sheet, and side pockets are formed on both sides of the opening. By contracting elastic members bonded to a core covering sheet on the both sides of the opening, the core covering sheet of the absorbent sheet member and the back sheet largely stand up in each side pocket, and the rear absorbent core is raised upward. Thus, it is possible to keep the distance large in a thickness direction between the absorbent sheet member and the back sheet in the vicinity of the opening and to fit a portion around the opening of the absorbent sheet member to a wearer.
    Type: Application
    Filed: May 12, 2009
    Publication date: November 19, 2009
    Inventors: Akiko TATSUKAWA, Hirofumi MIYAKE
  • Publication number: 20090054862
    Abstract: An absorbent product (1) has a sheet-like main body part (2) and a pair of side wall parts (3) provided on both sides in a width direction of the main body part (2). Each side wall part (3) has a standing part (312) standing from the main body part (2) toward wearer, a plane part (313) spreading outward in the width direction from an upper end (3121) of the standing part (312), and two elastic members (32a, 32b) extended in a longitudinal direction and bonded to the plane part (313). In each side wall part (3), since the plane part (313) is thicker than the standing part (312), it is possible to improve stability of the shape of the plane part (313) and enhance fitting of the plane part (313) to the wearer. Consequently, leakage of excrement from the side wall parts (3) is prevented more reliably.
    Type: Application
    Filed: August 5, 2008
    Publication date: February 26, 2009
    Inventor: Akiko Tatsukawa
  • Publication number: 20070179469
    Abstract: The invention provides an absorbent laminate for absorbing a body fluid and usable for a disposable absorbent article, in which the absorbent laminate comprises an upper layer absorbent body and a lower layer absorbent body, the upper layer absorbent body has at least one opening part extended continuously or discontinuously in the longitudinal direction of the upper layer absorbent body, and the maximum width W1 of the opening part is 40% or less of the minimum width W2 of the upper layer absorbent body. The invention also provides a disposable absorbent article provided with the absorbent laminate.
    Type: Application
    Filed: January 24, 2007
    Publication date: August 2, 2007
    Applicant: LIVEDO CORPORATION
    Inventors: Yuki Takahashi, Akiko Tatsukawa