Patents Assigned to Japan Absorbent Technology
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Patent number: 8043276Abstract: An absorbent article, including: a leak preventer in sheet form having a bottom surface part and a pair of side parts raised upward from both the right and left sides of the bottom surface part and forming an internal space by the bottom surface part and the pair of side parts; an absorber arranged in the internal space at least in one layer, containing a super absorbent polymer, and capable of absorbing body fluids; a pair of side edge stretchable bands provided to extend along edge parts of the pair of side parts; a waist band joined to a rear end of the leak preventer and extending in a lateral direction; and a pair of hip wrapping stretchable bands connected to the pair of side parts of the leak preventer and/or the pair of side edge stretchable bands and to the waist band.Type: GrantFiled: June 30, 2006Date of Patent: October 25, 2011Assignee: Japan Absorbent Technology InstituteInventors: Migaku Suzuki, Reiko Moriya
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Patent number: 7976523Abstract: An absorbent product capable of preventing the absorbing rate from significantly lowering with the elapse of time, from the start of use to a final stage when the absorbing capacity of the product reaches a limit, is provided. The absorbent product has a very small re-wet amount. The absorbent product includes a liquid-impermeable surface sheet positioned on the upper side, a liquid-impermeable back sheet positioned on the lower side, and an absorber containing super absorbent polymer to absorb discharged liquid positioned between the surface sheet and the back sheet, wherein a flow passage is provided to allow a part or all of the discharged liquid supplied to the surface sheet to move to a side of the back sheet.Type: GrantFiled: December 10, 2002Date of Patent: July 12, 2011Assignee: Japan Absorbent Technology InstituteInventors: Migaku Suzuki, Reiko Moriya
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Patent number: 7935861Abstract: A liquid distribution unit disposed in a position between an absorbent member and a wearer's body. The liquid distribution unit includes a sheet, the sheet including a plurality of openings defined through material which is otherwise liquid impermeable, and a plurality of introductory tubes extending toward the absorbent member, and each one of the introductory tubes includes one first end and one second end. Each first end of the tubes is connected to the sheet so that a center of each of a plurality of openings of the sheet is coincident with a center of an opening of each first end. The introductory tubes are adjacent to one another through an empty space. An absorbent product having the distribution unit is provided.Type: GrantFiled: February 19, 2002Date of Patent: May 3, 2011Assignee: Japan Absorbent Technology InstituteInventor: Migaku Suzuki
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Patent number: 7842019Abstract: In an absorbent product such as a diaper comprising a back sheet, an absorber, and a skin contact sheet, the skin contact sheet is disposed on the absorber as the uppermost layer which comes in contact with the skin of the wearer and has openings which allow the passage of excretions. The absorber and the skin contact sheet are joined only at both ends of the absorbent product in the longitudinal directions.Type: GrantFiled: October 31, 2007Date of Patent: November 30, 2010Assignees: Oji Paper Co., Ltd., Japan Absorbent Technology InstituteInventors: Katsuhiko Sugiyama, Yoshiaki Takamatsu, Rie Kuwabara, Masaru Tsubata, Migaku Suzuki
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Patent number: 7521109Abstract: An absorber comprising a laminate of two or more layers of highly water-absorbent sheets each containing a highly water-absorbent resin in high proportion, which absorber can satisfactorily cope with the feeding speed of aqueous liquid. In particular, an absorber comprising a laminate water-absorbent member, the laminate water-absorbent member consisting of a laminate of two or more layers of highly water-absorbent sheets each containing a highly water-absorbent resin and capable of absorbing an aqueous liquid, and a by-pass channel member, the by-pass channel member having a channel for, providing that an upper side refers to the side of laminate water-absorbent member fed with the aqueous liquid, moving the aqueous liquid fed to a first highly water-absorbent sheet disposed at the uppermost part of the laminate water-absorbent member from the first highly water-absorbent sheet to another highly water-absorbent sheet.Type: GrantFiled: April 4, 2003Date of Patent: April 21, 2009Assignee: Japan Absorbent Technology InstituteInventors: Migaku Suzuki, Reiko Moriya
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Publication number: 20090036852Abstract: It is an object of the present invention to provide an absorbent article capable of preventing loosening and slipping off.Type: ApplicationFiled: June 30, 2006Publication date: February 5, 2009Applicant: Japan Absorbent Technology InstituteInventors: Migaku Suzuki, Reiko Moriya
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Publication number: 20090005752Abstract: It is an object of the present invention to provide an absorbent article capable of separating urine and feces efficiently in use and having high urine absorption capacity. The object is attained by an absorbent article including: a first leak preventer in sheet form having a base part; a pair of side members extending in a longitudinal direction on right and left sides of the base part of the first leak preventer; an absorber comprised of at least one layer in an inner space formed by the base part of the first leak preventer and the side members, containing a super absorbent polymer, and capable of absorbing a body fluid; and a bridging member bonded to the pair of side members for bridging the side members, dividing the inner space into front and rear parts, capable of exhibiting a function of separating urine and feces, in which the bridging member is formed to be stretchable in a lateral direction.Type: ApplicationFiled: February 5, 2007Publication date: January 1, 2009Applicant: Japan Absorbent Technology InstituteInventors: Migaku Suzuki, Reiko Moriya
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Patent number: 7381294Abstract: A method for producing a microfibrillated cellulose, which comprises subjecting a slurry containing a pulp having a solids concentration of 1 to 6 wt % to the treatment with a disc refiner repeatedly ten times or more, to thereby prepare a microfibrillated cellulose having a number average fiber length or 0.2 mm or less and an amount of water hold of 10 mL/g or more, the amount representing the volume of water capable of being held by a unit weight of the cellulose fiber. The method allows the production of a microfibrillated cellulose having high quality with stability and with good efficiency.Type: GrantFiled: July 15, 2003Date of Patent: June 3, 2008Assignee: Japan Absorbent Technology InstituteInventors: Migaku Suzuki, Yutaka Hattori
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Patent number: 7344522Abstract: An absorbent easily rendered three-dimensional in the central region by water absorption is composed of a sheet-like absorbent having regions where a highly absorptive component is present and regions where it is absent, these presence and absence regions parallelly extending lengthwise of a sheet-like base material and alternating with each other, the sheet-like base material being turned back along a bending line in the highly absorptive component absence regions of the sheet-like absorbent, there being at least one band-like portion of multilayer construction where the highly absorptive component presence regions are superposed in a plurality of layers.Type: GrantFiled: September 6, 2002Date of Patent: March 18, 2008Assignee: Japan Absorbent Technology InstituteInventors: Migaku Suzuki, Katsuhiko Sugiyama, Satomi Takematsu, Kazuyo Mori
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Publication number: 20070299417Abstract: It is an object of the present invention to provide an absorbent article which does not cause discomfort to a wearer when worn, particularly after an absorber absorbs a body fluid to be swelled, and which is capable of receiving urine and feces separately. The object is attained by an absorbent article, including: a leak preventer having a sheet, and two bags provided separately on right and left of an upper side of the sheet, each of the two bags having an opening facing with each other; and an absorber having at least one layer and containing a super absorbent polymer and capable of absorbing a body fluid, provided in each of the two bags.Type: ApplicationFiled: February 2, 2004Publication date: December 27, 2007Applicants: Japan Absorbent Technology Insttiute, Mitsubishi CorporationInventors: Migaku Suzuki, Katsumi Ando, Satomi Takematsu, Hiroko Sekiguchi, Reiko Moriya
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Publication number: 20060241557Abstract: Disclosed is an absorbent article including: a first sheet leak preventer; a second sheet leak preventer present above and in a rear part of the first leak preventer; and an absorbent containing a super absorbent polymer, capable of absorbing a body fluid, and provided above the first leak preventer extending from a front part of the first leak preventer beneath the second leak preventer in at least one layer. The absorbent article of the present invention can separate urine and feces efficiently in use and having high urine absorption capacity.Type: ApplicationFiled: August 18, 2005Publication date: October 26, 2006Applicant: JAPAN ABSORBENT TECHNOLOGY INSTITUTEInventors: Reiko Moriya, Migaku Suzuki
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Patent number: 7101438Abstract: A coater for dispersed slurry capable of coating coated dispersed slurry on a nonwoven cloth-like base material while bringing the slurry into contact with the material, comprising a net conveyor for transferring the nonwoven cloth-like base material, a supply means for supplying the dispersed slurry onto the net conveyor, and a coating roll for forming a coating layer of a specified thickness by pressing, from the upper side thereof, the dispersed slurry supplied onto the nonwoven cloth-like base material, wherein this coating roll is allowed to come into direct contact with the dispersed slurry on the peripheral surface of the nonwoven cloth-like base material or allowed to come into contact with the dispersed slurry through a film provided therethrough.Type: GrantFiled: August 26, 2002Date of Patent: September 5, 2006Assignee: Japan Absorbent Technology InstituteInventors: Migaku Suzuki, Shingo Mori
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Publication number: 20050194477Abstract: A method for producing a microfibrillated cellulose, which comprises subjecting a slurry containing a pulp having a solids concentration of 1 to 6 wt % to the treatment with a disc refiner repeatedly ten times or more, to thereby prepare a microfibrillated cellulose having a number average fiber length or 0.2 mm or less and an amount of water hold of 10 mL/g or more, the amount representing the volume of water capable of being held by a unit weight of the cellulose fiber. The method allows the production of a microfibrillated cellulose having high quality with stability and with good efficiency.Type: ApplicationFiled: July 15, 2003Publication date: September 8, 2005Applicant: Japan Absorbent Technology InstituteInventor: Migaku Suzuki
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Publication number: 20050147810Abstract: An absorber comprising a laminate of two or more layers of highly water-absorbent sheets each containing a highly water-absorbent resin in high proportion, which absorber can satisfactorily cope with the feeding speed of aqueous liquid. In particular, an absorber comprising a laminate water-absorbent member, the laminate water-absorbent member consisting of a laminate of two or more layers of highly water-absorbent sheets each containing a highly water-absorbent resin and capable of absorbing an aqueous liquid, and a by-pass channel member, the by-pass channel member having a channel for, providing that an upper side refers to the side of laminate water-absorbent member fed with the aqueous liquid, moving the aqueous liquid fed to a first highly water-absorbent sheet disposed at the uppermost part of the laminate water-absorbent member from the first highly water-absorbent sheet to another highly water-absorbent sheet.Type: ApplicationFiled: April 4, 2003Publication date: July 7, 2005Applicant: Japan Absorbent Technology InstituteInventors: Migaku Suzuki, Reiko Moriya
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Patent number: 6790798Abstract: A highly absorbent composite sheet wherein a non-woven substrate having a bulky structure and solid SAP with a part contained inside said bulky structure and the rest exposed on the surface of said non-woven substrate are provided, a thermally fusible component being a hot-melt adhesive, the hot-melt adhesive forming a fibrous network and covering said solid SAP and fine cellulose fibers in contact with the solid SAP whereby a single or double fibrous network is provided with the solid SAP held in position. A method for manufacturing same, and an absorbent article using such highly absorbent composite sheet are also provided.Type: GrantFiled: September 22, 2000Date of Patent: September 14, 2004Assignee: Japan Absorbent Technology InstituteInventors: Migaku Suzuki, Ryoichi Matsumoto
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Publication number: 20030220623Abstract: An absorptive product comprising a front part, a rear part, an inside leg part, a waist opening, a pair of leg circumference openings, and a liquid-impermeable back sheet, wherein disposed on the inner side of the back sheet are a urinal front absorber and a feces rear absorber, with a take-out port formed for taking out these absorbers.Type: ApplicationFiled: March 21, 2003Publication date: November 27, 2003Applicants: The Procter & Gamble Company, Japan Absorbent Technology InstituteInventors: Katsuhiko Sugiyama, Rie Kuwabara, Migaku Suzuki
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Patent number: 6592960Abstract: A method of manufacturing a non-woven fabric which is bulky caused by fiber-raised construction on the surface of a non-woven fabric includes adhering a non-woven web with its surface layer portion containing an easy-to-heat-melt component showing a property to be adhesive as heated to a smooth surface heated at the temperature for the easy-to-heat-melt component to show a property to be adhesive with the surface layer portion in contact with the smooth surface, and then raising the fibers of the non-woven web by peeling the non-woven fabric like web off the smooth surface so that a fiber-raised bulky state is generated, whereby a fiber-raised bulky structure is formed on the surface of the non-woven fabric.Type: GrantFiled: May 4, 2000Date of Patent: July 15, 2003Assignee: Japan Absorbent TechnologyInventors: Migaku Suzuki, Shingo Mori
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Patent number: 6540853Abstract: An absorbent composite sheet mainly consisting of a fibrous substrate web, a super absorbent polymer, and a bonding component bonding both of them with each other, wherein (a) the fibrous substrate web is a non-bonded web with a few of the constituent fibers bonded with each other, (b) a liquid mixture system is used of a medium mainly consisting of the super absorbent polymer and the bonding component, (c) a composite web is formed by adding the liquid mixture system to the fibrous substrate web, and (d) a liquid component is separated from the composite web so that fixing of the super absorbent polymer to the fibrous substrate web and bonding of the webs of the fibrous substrate web with one another are carried out at the same time. Methods of manufacturing such absorbent composite sheets are also provided.Type: GrantFiled: January 18, 2001Date of Patent: April 1, 2003Assignees: Japan Absorbent Technology Institute, Mitsubishi CorporationInventors: Migaku Suzuki, Shingo Mori
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Patent number: 6391013Abstract: An absorbent article having a main body which includes a backsheet formed of a liquid impermeable sheet, a topsheet formed of a liquid permeable sheet, an absorbent core interposed between the backsheet and the topsheet, and leg gathers disposed along leg holes. Two sets of elastic members are, in a stretched state, bonded to a non-woven fabric along the leg holes. Each set of elastic members is not bonded to the non-woven fabric in a region which traverses a crotch region to extend from one of the leg holes to the other, and is cut in the non-bonded region so that the elastic members snap back toward crossing points where the two sets of the elastic members meet to form tails.Type: GrantFiled: December 20, 1996Date of Patent: May 21, 2002Assignee: Japan Absorbent Technology InstituteInventors: Migaku Suzuki, Hiroaki Fukui
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Patent number: 5827260Abstract: According to the present invention, there is provided a sanitary article comprising a main body having a liquid-impermeable back sheet, a liquid-permeable front sheet and an absorbent material and leg holes having at the opposed edge portions of the main body, further comprising fixation means forming a flexible ring which are fitted closely over the entire circumference of the proximal portion of each of the wearer's legs.Type: GrantFiled: August 5, 1996Date of Patent: October 27, 1998Assignee: Japan Absorbent Technology InstituteInventors: Migaku Suzuki, Hiroaki Fukui