Patents by Inventor Akane Sakai
Akane Sakai 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).
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Patent number: 11920012Abstract: To provide a release film not to contaminate a mold or a molded article. The present invention provides a release film comprising, an oligomer bleeding prevention layer formed of an acrylic resin or a siloxane resin and laminated on a first face of a base layer that is formed of a polyethylene terephthalate resin; a surface layer formed of a fluororesin and laminated on the oligomer bleeding prevention layer; and a surface layer formed of a fluororesin and laminated on a second face of the base layer, or an oligomer bleeding prevention layer formed of an acrylic resin or a siloxane resin and laminated on a second face of the base layer, and a surface layer formed of a fluororesin and laminated on the oligomer bleeding prevention layer that is laminated on the second face.Type: GrantFiled: April 8, 2019Date of Patent: March 5, 2024Assignee: KOBAYASHI & CO., LTD.Inventors: Keisuke Sakai, Norifumi Iwawaki, Nanae Tanaka, Satoshi Hiramatsu, Akane Kawafuchi
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Publication number: 20240052157Abstract: The invention provides a thermoplastic elastomer composition that includes a resin component and an additive, in which the resin component includes a styrene-based block copolymer containing a covalently crosslinked part, and a polyolefin having a weight average molecular weight of 80,000 to 500,000, a content of the styrene-based block copolymer is 40%-95% by mass relative to the entire resin component, and a content of the polyolefin is 5%-60% by mass relative to the entire resin component; and the additive includes an acid-modified compound having a weight average molecular weight of 1,000 or more and less than 80,000 and having a functional group derived from a carboxylic acid- and/or its derivative, and/or a polyester compound, and a crosslinking agent capable of crosslinking at least one of the styrene-based block copolymer and the polyolefin.Type: ApplicationFiled: December 20, 2021Publication date: February 15, 2024Applicant: ENEOS CorporationInventors: Hiroaki MURAKAMI, Kousuke YAMAKI, Keisuke CHINO, Akane SAKAI
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Patent number: 8927803Abstract: To provide an absorbent article capable of sufficiently fulfilling a function of preventing lateral leakage even when a force is applied in the width direction (transverse direction) during wearing. An absorbent article comprising a liquid-pervious surface sheet, a liquid-impervious leakage-preventive sheet, and a liquid-retentive absorption body disposed between the surface sheet and the leakage-preventive sheet, wherein the absorption body comprises at least two layers, at least one of the layers is a first absorption body layer composed of a hydrophilic sheet and a super-absorbent polymer, and in the longitudinal middle area of the absorbent article, the width of the first absorption body layer is larger than the width of other absorption body layer(s). In the first absorption body layer, a plurality of hydrophilic sheets are stacked, the super-absorbent polymer is disposed between hydrophilic sheets, and the hydrophilic sheets are joined in a region where the super-absorbent polymer is not spread.Type: GrantFiled: March 12, 2010Date of Patent: January 6, 2015Assignee: Uni-Charm CorporationInventors: Akane Sakai, Yusuke Kawakami, Ayako Akahira
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Patent number: 8772570Abstract: A liquid-absorbent structure configured to prevent a liquid-absorbent core material from being unevenly distributed and thereby to assure that bodily fluids can be smoothly absorbed by the liquid-absorbent structure. According to one embodiment the present invention provides a panty liner that includes a topsheet lying on a side facing the wearer's body, a backsheet facing the wearer's garment and a liquid-absorbent structure sandwiched between these sheets. A first inner surface of a first sheet forming the liquid-absorbent structure is coated with adhesives to form a plurality of first bonding regions and a second inner surface of a second sheet is coated with adhesives to form a plurality of second bonding regions. Each of the first non-bonding regions lies between each pair of the first bonding regions, and each of the second non-bonding regions lies between each pair of the second bonding regions.Type: GrantFiled: October 19, 2009Date of Patent: July 8, 2014Assignee: Unicharm CorporationInventors: Yasuke Kawakami, Akane Sakai, Ayako Akahira
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Patent number: 8597458Abstract: A manufacturing method for a composite sheet which includes: conveying a first continuous sheet in a first direction so as to abut a depressed surface of a mold member; forming an absorbent body by depositing liquid-absorbent particles on a portion of the first sheet proximal to a suction hole of the mold; and joining a second sheet over the first sheet having the absorbent body that is deposited therebetween, the second sheet being continuously transported in the first direction. A plurality of opposed slope members guide the liquid-absorbent particles onto the first sheet located on the mold member. At least one of the plurality of slope members causes the liquid-absorbent particles to reverse their falling direction from an upper slope member.Type: GrantFiled: February 18, 2010Date of Patent: December 3, 2013Assignee: Uni-charm CorporationInventors: Hiroki Taniguchi, Masashi Hosokawa, Akane Sakai
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Patent number: 8192416Abstract: The present invention relates to an interlabial pad that is worn by female wearers, placed in intimate contact and supported between the labia, which provides an interlabial pad that causes no discomfort to the female wearer in the body motions of the wearer. The interlabial pad of the present invention is characterized by having bending elements which allows the interlabial pad to follow the changes in form flexibly even when a force is exerted on the interlabial pad by the wearer's body motion.Type: GrantFiled: June 19, 2009Date of Patent: June 5, 2012Assignee: Uni-Charm CorporationInventors: Satoshi Mizutani, Koichi Yamaki, Yuki Noda, Megumi Tokumoto, Akane Sakai
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Publication number: 20120078209Abstract: To provide an absorbent article capable of sufficiently fulfilling a function of preventing lateral leakage even when a force is applied in the width direction (transverse direction) during wearing. An absorbent article comprising a liquid-pervious surface sheet, a liquid-impervious leakage-preventive sheet, and a liquid-retentive absorption body disposed between the surface sheet and the leakage-preventive sheet, wherein the absorption body comprises at least two layers, at least one of the layers is a first absorption body layer composed of a hydrophilic sheet and a super-absorbent polymer, and in the longitudinal middle area of the absorbent article, the width of the first absorption body layer is larger than the width of other absorption body layer(s). In the first absorption body layer, a plurality of hydrophilic sheets are stacked, the super-absorbent polymer is disposed between hydrophilic sheets, and the hydrophilic sheets are joined in a region where the super-absorbent polymer is not spread.Type: ApplicationFiled: March 12, 2010Publication date: March 29, 2012Inventors: Akane Sakai, Yusuke Kawakami, Ayako Akahira
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Publication number: 20120056347Abstract: A manufacturing method for a composite sheet formed by sandwiching an absorbent body that absorbs liquid between a first sheet and a second sheet is provided. The method includes: conveying the first sheet with abutting a mold member on a surface of the mold member, the first sheet being continuous in a first direction, the mold member including a mold formed on the surface in a depressed shape and moving along the first direction perpendicular to a width direction of the surface; forming the absorbent body using a procedure in which a liquid-absorbent particle falls towards the first sheet abutting the surface and the liquid-absorbent particle is deposited on a corresponding portion of the first sheet to the mold by suction from a suction hole of the mold; and joining the second sheet and the first sheet with placing the second sheet over the first sheet, the first sheet having the absorbent body that is deposited thereon, the second sheet being continuously transported in the first direction.Type: ApplicationFiled: February 18, 2010Publication date: March 8, 2012Inventors: Hiroki Taniguchi, Masashi Hosokawa, Akane Sakai
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Publication number: 20110208147Abstract: A liquid-absorbent structure configured to prevent a liquid-absorbent core material from being unevenly distributed and thereby to assure that bodily fluids can be smoothly absorbed by the liquid-absorbent structure. According to one embodiment the present invention provides a panty liner that includes a topsheet lying on a side facing the wearer's body, a backsheet facing the wearer's garment and a liquid-absorbent structure sandwiched between these sheets. A first inner surface of a first sheet forming the liquid-absorbent structure is coated with adhesives to form a plurality of first bonding regions and a second inner surface of a second sheet is coated with adhesives to form a plurality of second bonding regions. Each of the first non-bonding regions lies between each pair of the first bonding regions, and each of the second non-bonding regions lies between each pair of the second bonding regions.Type: ApplicationFiled: October 19, 2009Publication date: August 25, 2011Applicant: UNI-CHARM CORPORATIONInventors: Yasuke Kawakami, Akane Sakai, Ayako Akahira
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Patent number: 7727212Abstract: An absorbent article worn in the groin area, in which, when a compressive force is received from a lateral direction, a main absorbent region can oppose an excretion area of a wearer's body without twists or wrinkles occurring, and when the compressive force is relaxed, the article easily recovers to its original shape. An absorbent body provided in the absorbent article has a main absorbent region, reinforcing regions, and buffer regions. The bending stiffness of the reinforcing regions and the main absorbent region is larger than that of the buffer regions. When compressive force is received from a wearer's thigh areas in the lateral direction, the reinforcing regions that are positioned to the left and right deform in a curved shape, and the buffer regions that are to the left and right are compressed. The main absorbent region does not easily deform, and maintains a tight fit.Type: GrantFiled: June 12, 2006Date of Patent: June 1, 2010Assignee: Uni-Charm CorporationInventors: Akane Sakai, Wataru Yoshimasa, Kazuya Nishitani, Satoshi Mizutani
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Patent number: 7686793Abstract: An interlabial pad is provided that can be easily worn in the interlabial space. A wrapping body is provided that contains the interlabial pad. In the interlabial pad, a finger insertion cavity is formed along the longitudinal direction of a back side sheet between a mini-sheet piece and the side opposite to body on the back side sheet. An opening of the finger insertion cavity for inserting a finger leads to a finger insertion restriction portion which farther restricts the insertion of the finger.Type: GrantFiled: November 10, 2003Date of Patent: March 30, 2010Assignee: Uni-Charm CorporationInventors: Satoshi Mizutani, Koichi Yamaki, Yuki Noda, Megumi Tokumoto, Akane Sakai
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Publication number: 20090259207Abstract: The present invention relates to an interlabial pad that is worn by female wearers, placed in intimate contact and supported between the labia, which provides an interlabial pad that causes no discomfort to the female wearer in the body motions of the wearer. The interlabial pad of the present invention is characterized by having bending elements which allows the interlabial pad to follow the changes in form flexibly even when a force is exerted on the interlabial pad by the wearer's body motion.Type: ApplicationFiled: June 19, 2009Publication date: October 15, 2009Applicant: Uni-Charm CorporationInventors: Satoshi Mizutani, Koichi Yamaki, Yuki Noda, Megumi Tokumoto, Akane Sakai
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Patent number: 7601146Abstract: An interlabial pad individual wrapping container is presented which facilitates sanitary application and removal of an interlabial pad between the labia of a wearer. The interlabial individual wrapping container can be used as a preferred handling member at the time of application or removal of the interlabial pad. Two fingers of the left hand are inserted in finger insertion openings formed from a belt body attached on the wrapping container, the wrapping container is separated into the sections along a separation part by opening these fingers to the left and right, and in this state, the action for applying the interlabial pad held on a finger of the right hand is performed.Type: GrantFiled: November 10, 2003Date of Patent: October 13, 2009Assignee: Uni-Charm CorporationInventors: Satoshi Mizutani, Koichi Yamaki, Yuki Noda, Megumi Tokumoto, Akane Sakai
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Patent number: 7549980Abstract: The present invention relates to an interlabial pad that is worn by female wearers, placed in intimate contact and supported between the labia, which provides an interlabial pad that causes no discomfort to the female wearer in the body motions of the wearer. The interlabial pad of the present invention is characterized by having bending elements which allows the interlabial pad to follow the changes in form flexibly even when a force is exerted on the interlabial pad by the wearer's body motion.Type: GrantFiled: November 10, 2003Date of Patent: June 23, 2009Assignee: Uni-Charm CorporationInventors: Satoshi Mizutani, Koichi Yamaki, Yuki Noda, Megumi Tokumoto, Akane Sakai
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Patent number: 7534236Abstract: The present invention concerns an interlabial pad easy to wear between the labia and provides an interlabial pad of a structure allowing to wear between the labia of a woman easily and appropriately. A mini sheet piece (14) is attached to the opposite side to the body side of the an interlabial pad (1) for constituting a pocket (16) for finger insertion and, at the same time, the shape of a finger insertion opening (19a) constituting the entrance of the pocket (16) is made flat in the planar direction of the sheet so that the boll of the finger can be inserted naturally in contact with the face of the sheet. In addition, the finger insertion opening (19a) is made to guide to a finger application point (3) appropriate for feeling for a wearing point in between the labia.Type: GrantFiled: November 10, 2003Date of Patent: May 19, 2009Assignee: Uni-Charm CorporationInventors: Satoshi Mizutani, Koichi Yamaki, Yuki Noda, Megumi Tokumoto, Akane Sakai
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Patent number: 7462174Abstract: A sanitary napkin has leakage preventing walls on a skin-side surface of a main body. The leakage preventing wall has a skin-contacting portion, of which an inner edge is fixed at an inner edge's front end and an outer edge is fixed at an outer edge's front end located forward of the inner edge's front end. Therefore, when the leakage preventing wall is in a rising position, the skin-contacting portion is inclined with the outer edge closer to the wearer's body than the inner edge. Accordingly, the skin-contacting portion can easily conform to the wearer's crotch on both sides of the vaginal opening.Type: GrantFiled: June 7, 2004Date of Patent: December 9, 2008Assignee: Uni-Charm CorporationInventors: Kazuya Nishitani, Toshiyuki Tanio, Masataka Kinoshita, Akane Sakai
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Patent number: 7367966Abstract: The present invention relates to an interlabial pad that is worn by female wearers, placed in intimate contact and supported between the labia, which provides an interlabial pad that gives no discomfort to the female wearer in the body motions of the wearer. The interlabial pad of the present invention is characterized by having a structure and/or shape which allows the pad to make right and left phase shifts easily, even when a shearing force is exerted on the interlabial pad by the wearer's body motion, that is, a structure and/or shape which reduces the friction.Type: GrantFiled: November 10, 2003Date of Patent: May 6, 2008Assignee: Uni-Charm CorporationInventors: Satoshi Mizutani, Koichi Yamaki, Yuki Noda, Megumi Tokumoto, Akane Sakai
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Patent number: 7307197Abstract: In an inter-labia pad comprising an absorbing body for absorbing bodily fluid and a cover material for covering the absorbing body, the cover material has a human body-side face that faces the labia of a wearer and an absorbing body-side face that faces the absorbing body. The absorbing body includes a labia-following layer and a bodily liquid-storing layer. The labia-following layer, together with the cover material, deforms in accordance with the shape of the wearer's labia, and the bodily liquid storing-layer is in contact with the labia-following layer so that bodily liquid can move from the labia-following layer to the liquid-storing layer. The pad can be reliably fit to subtle shapes of the wearer's urethral opening, private parts, etc.; therefore the pad provides excellent appearance, and prevents bodily liquid from leaking without giving the wearer sense of discomfort.Type: GrantFiled: March 3, 2005Date of Patent: December 11, 2007Assignee: Uni-Charm CorporationInventors: Satoshi Mizutani, Koichi Yamaki, Yuki Noda, Megumi Tokumoto, Akane Sakai
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Patent number: 7196241Abstract: A sanitary napkin in which diffusing liquid hardly reaches a rear end edge is adapted to make a liquid absorbent layer less deformable in a rear region so that it can easily be kept in close contact with the wearer's buttocks. The sanitary napkin has an elongated main absorbent region surrounded by compressed grooves that are formed in a skin-side surface. Since a rear end of the main absorbent region is far away from a rear end edge of the napkin to provide a relatively large rear region, worries about rearward leakage may be relieved. Furthermore, since auxiliary longitudinal grooves are provided in the rear region, a liquid absorbent layer may hardly be twisted.Type: GrantFiled: May 7, 2004Date of Patent: March 27, 2007Assignee: Uni-Charm CorporationInventors: Masataka Kinoshita, Kazuya Nishitani, Toshiyuki Tanio, Akane Sakai
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Publication number: 20060287636Abstract: An absorbent article worn in the groin area, in which, when a compressive force is received from a lateral direction, a main absorbent region can oppose an excretion area of a wearer's body without twists or wrinkles occurring, and when the compressive force is relaxed, the article easily recovers to its original shape. An absorbent body provided in the absorbent article has a main absorbent region, reinforcing regions, and buffer regions. The bending stiffness of the reinforcing regions is larger than that of the buffer regions, and the bending stiffness of the main absorbent region is larger than that of the buffer regions. When compressive force is received from a wearer's thigh areas in the lateral direction, the reinforcing regions that are positioned to the left and right deform in a curved shape, and the buffer regions that are to the left and right are compressed.Type: ApplicationFiled: June 12, 2006Publication date: December 21, 2006Applicant: Uni-Charm CorporationInventors: Akane Sakai, Wataru Yoshimasa, Kazuya Nishitani, Satoshi Mizutani