Patents by Inventor Ichiro Wada
Ichiro Wada 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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Publication number: 20040002689Abstract: A pull-on disposable wearing article includes pants having a waist-hole and a pair of leg-holes, on one hand, and a liquid-absorbent pad placed on the inner side of the pants. On the other hand, the pants and the pad are coupled together by means of first and second coupler sheets extending between the pants and the pad. The pants and first and second coupler sheets are elastically stretchable in a longitudinal direction as well as in a transverse direction. A stretch stress of the pants is higher than those of the first and second coupler sheets and a stretch stress of the second coupler sheet is lower than that of the first coupler sheet.Type: ApplicationFiled: March 18, 2003Publication date: January 1, 2004Inventors: Takamitsu Igaue, Noriyuki Kurita, Ichiro Wada
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Patent number: 6616646Abstract: There is disclosed an absorbent article including: a surface structure having a liquid-permeable surface sheet located on a liquid-receiving side; a back sheet; and an absorbent core sandwiched between the surface structure and the back sheet. In an area including at least a centerline extending in a longitudinal direction of the absorbent article, the surface sheet is corrugated to form recesses and ridges extending in the longitudinal direction and alternating with each other in a transverse direction perpendicular to the longitudinal direction. The ridges are given an elastically shrinking function in the longitudinal direction at least at their crests or vicinities thereof so that the surface structure is formed into a curved shape. The surface structure thus curved can fit the shape of a crotch. Therefore, the liquid is hard to flow in the transverse direction to prevent the leakage.Type: GrantFiled: April 2, 2002Date of Patent: September 9, 2003Assignee: Uni-Charm CorporationInventors: Ichiro Wada, Yoshihisa Fujioka
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Patent number: 6540729Abstract: A men's disposable urine holding bag that includes a base sheet which is intermittently bonded to define a bond zone along transversely opposite side edges thereof which edges are placed flat together so as to define an opening for receiving a penis. A body fluid absorbent panel is attached to an inner side of the base sheet. The bond zone has a water pressure resistance of about 50 to 1500 mm.Type: GrantFiled: November 17, 2000Date of Patent: April 1, 2003Assignee: Uni-Charm CorporationInventors: Ichiro Wada, Kozo Abe, Noriyuki Kurita
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Patent number: 6498283Abstract: A body fluid absorbent garment includes a topsheet, a backsheet and a core disposed therebetween, the core is formed with a pair of protruding barriers spaced from each other and extending parallel to the side edges and has a density lower in the protruding barriers than in its zone free from formation of the protruding barriers.Type: GrantFiled: November 16, 2000Date of Patent: December 24, 2002Assignee: Uni-Charm CorporationInventors: Ichiro Wada, Kozo Abe, Noriyuki Kurita
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Publication number: 20020151636Abstract: The rubber composition of the present invention is used for producing an inner liner of a pneumatic tire, and is obtained by compounding a rubber component and a layered or plate-like mineral. The layered or plate-like mineral has an aspect ratio of 3 or more and less than 30. The present invention further provides a production method of the rubber composition and a pneumatic tire which is produced by using the rubber composition. The present invention is applicable to a tire of passenger vehicles, bus or truck, and a tire of airplane. According to the present invention, the air permeation resistance is remarkably improved and the workability is also improved. Therefore, the rapture and hole defect of a non-vulcanized sheet during the tire construction can be avoided. By using the rubber composition, the gauge of the inner liner of pneumatic tire can be reduced while maintaining the inner pressure of tire, thereby reducing the weight of tire.Type: ApplicationFiled: January 15, 2002Publication date: October 17, 2002Inventors: Ichiro Wada, Masashi Ohara, Osamu Uchino, Toshiaki Koura, Naofumi Ezawa, Motoaki Kanoh, Yasuyoshi Kawaguchi, Shun Nakamura
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Publication number: 20020120249Abstract: There is disclosed an absorbent article including: a surface structure having a liquid-permeable surface sheet located on a liquid-receiving side; a back sheet; and an absorbent core sandwiched between the surface structure and the back sheet. In an area including at least a centerline extending in a longitudinal direction of the absorbent article, the surface sheet is corrugated to form recesses and ridges extending in the longitudinal direction and alternating with each other in a transverse direction perpendicular to the longitudinal direction. The ridges are given an elastically shrinking function in the longitudinal direction at least at their crests or vicinities thereof so that the surface structure is formed into a curved shape. The surface structure thus curved can fit the shape of a crotch. Therefore, the liquid is hard to flow in the transverse direction to prevent the leakage.Type: ApplicationFiled: April 2, 2002Publication date: August 29, 2002Inventors: Ichiro Wada, Yoshihisa Fujioka
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Patent number: 6436081Abstract: There is disclosed an absorbent article including: a surface structure having a liquid-permeable surface sheet located on a liquid-receiving side; a back sheet; and an absorbent core sandwiched between the surface structure and the back sheet. In an area including at least a centerline extending in a longitudinal direction of the absorbent article, the surface sheet is corrugated to form recesses and ridges extending in the longitudinal direction and alternating with each other in a transverse direction perpendicular to the longitudinal direction. The ridges are given an elastically shrinking function in the longitudinal direction at least at their crests or vicinities thereof so that the surface structure is formed into a curved shape. The surface structure thus curved can fit the shape of a crotch. Therefore, the liquid is hard to flow in the transverse direction to prevent the leakage.Type: GrantFiled: March 21, 2000Date of Patent: August 20, 2002Assignee: Uni-Charm CorporationInventors: Ichiro Wada, Yoshihisa Fujioka
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Patent number: 6432094Abstract: An absorbent article comprising a liquid-permeable top sheet, a back sheet, and an absorbent core interposed between the top sheet and the back sheet, wherein the top sheet rises upwardly from the absorbent core to have a plurality of protrusions, which extend parallel with one another in a longitudinal direction of the absorbent article, and a hydrophilic material is provided within the protrusions so as to form a cushion layer.Type: GrantFiled: May 6, 1999Date of Patent: August 13, 2002Assignee: Uni-Charm CorporationInventors: Yoshihisa Fujioka, Ichiro Wada, Noriyuki Kurita
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Patent number: 6416500Abstract: A disposable urine retaining bag for adult man includes, a generally inverted trigonal pyramid defined by a front wall section and first and second side wall sections, the sections are formed with a liquid absorbent core and a liquid-impermeable sheet covering an outer surface of the core, the sections are foldable along longitudinal boundary lines of them, and the bag has a mouth for inserting the penis which is provided with fasteners and an elastic member.Type: GrantFiled: September 20, 2000Date of Patent: July 9, 2002Assignee: Uni-Charm CorporationInventors: Ichiro Wada, Kozo Abe, Noriyuki Kurita
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Patent number: 6338729Abstract: A urine absorbing pad comprising a laminate including: a liquid penneable internal surface sheet; a liquid impermeable external surface sheet; and an absorbent core sandwiched between the internal and external surface sheets. The laminate forming a bag body having an opening, at which the internal surface sheet is directed inward, the opening being positioned closer to an upper end of the bag body than to a lower end of the bag body. The upper end and the lower end are extended substantially at a right angle with resect to each other. The opening is formed into a slit shape having a longitudinal direction from the upper end toward the lower and.Type: GrantFiled: October 14, 1999Date of Patent: January 15, 2002Assignee: Uni-Charm CorporationInventors: Ichiro Wada, Noriyuki Kurita, Kouzou Abe
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Patent number: 6254845Abstract: The present invention provides a method for the homogenous and highly efficient synthesis of an aluminosilicate material that can be used for adsorbents, deodorants, catalyst carriers, humidity adjustors, and the like, and relates to a method for manufacturing spherical hollow silicate clusters, comprising steps of mixing a solution of a silicon compound and a solution of an aluminum compound or transition metal compound, each with a solution concentration of 10-1000 mmol, rapidly or simultaneously at a rate of 1-10,000 mL/min, removing a salt formed as a by-product, and then subjecting the mixture to hydrothermal synthesis to yield the silicate clusters.Type: GrantFiled: February 11, 1998Date of Patent: July 3, 2001Assignee: Agency of Industrial Science and TechnologyInventors: Fumihiko Ohashi, Shin-Ichiro Wada, Yasuko Kakuto
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Patent number: 6206866Abstract: An absorbent article comprising a liquid-permeable top sheet, a back sheet, and an absorbent core interposed between the top sheet and the back sheet, wherein the top sheet rises upwardly from the absorbent core to have a plurality of protrusions, which extend parallel with one another in a longitudinal direction of the absorbent article, and a hydrophilic material is provided within the protrusions so as to form a cushion layer.Type: GrantFiled: May 6, 1999Date of Patent: March 27, 2001Assignee: Uni-Charm CorporationInventors: Yoshihisa Fujioka, Ichiro Wada, Noriyuki Kurita
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Patent number: 6129718Abstract: A urine-receiving pad for men including a bag of a laminated sheet which includes an inner sheet, an outer sheet and an absorbent core therebetween, and a pair of elastic members provided along the opening. By holding and pushing both ends of the elastic members with fingers, the elastic members are buckling-deformed to open the opening. When a penis is inserted into the opening and then the fingers are released, the penis is suitably pressed by elastic restoration forces of the elastic members, to prevent easy coming out of the penis therefrom. Since the pressing force resulting from the buckling-deformation of the elastic members is so small, too much pressure onto the penis is prevented. Further, the urine-receiving pad can be attached with only one hand.Type: GrantFiled: September 10, 1998Date of Patent: October 10, 2000Assignee: Uni-Charm CorporationInventor: Ichiro Wada
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Patent number: 6129717Abstract: An absorbent article including an inner sheet and first and second outer sheets. The first outer sheet is of a fine interstice while the second outer sheet is fluid permeable. Through crepe processing, a great number of recesses are formed on an absorbent crepe sheet having wrinkles as the inner sheet. Highly absorbent polymers are charged in the recesses. Then, the first outer sheet adheres to the face on the opening side of the recesses of the inner sheet, while the second outer sheet adheres to the face of the opposite side of the inner sheet. The second outer sheet is positioned toward the side of fluid absorption. When a fluid is applied on the absorbent article, the fluid passes through the second outer sheet onto the inner sheet and the highly absorbent polymers. Because the crepe wrinkles are elongated and extended when the inner sheet absorbs fluid, the recesses are enlarged.Type: GrantFiled: June 24, 1997Date of Patent: October 10, 2000Assignee: Uni-Charm CorporationInventors: Yoshihisa Fujioka, Ichiro Wada, Chimari Fujita, Norihiko Ishikawa
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Patent number: 5994614Abstract: After overlaying an inner sheet of a coarse and bulky non-woven fabric on an outer sheet, super absorbent polymers (SAP) are dispersed on the inner sheet. Folding inwardly both the sides of the laminated body composed of the outer sheet and the inner sheet so as to face the inner sheet together to overlay both the ends together, the SAP are wrapped by means of the outer sheet and the inner sheet from the top and bottom thereof. Then, applying heat over the outer sheet, the outer sheet and the inner sheet are melted and bonded together while the inner sheet is melted and bonded together. Then, the bonding parts are formed in a given shape and SAP can be retained between the fibers of the inner sheet in a given area of the encircled region preliminarily encircled by the bonding parts.Type: GrantFiled: September 4, 1997Date of Patent: November 30, 1999Assignee: Uni-Charm CorporationInventors: Ichiro Wada, Chimari Fujita
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Patent number: 5833679Abstract: A sanitary napkin includes a liquid-permeable topsheet made of thermoplastic synthetic fibers and a liquid-absorbent core integrated with the topsheet at debossed spots. The debossed spots are formed as enlarged diameter upper depressions formed by compressing the topsheet and core together, and reduced diameter lower depressions formed by partially heating the bottom of the depression while under pressure, resulting in the heat-sealing of the topsheet and the core.Type: GrantFiled: November 18, 1996Date of Patent: November 10, 1998Assignee: Uni-Charm CorporationInventor: Ichiro Wada
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Patent number: 5746729Abstract: A sanitary napkin includes a top layer having an upper layer made of a perforated thermoplastic synthetic resinous film and a lower layer made of thermoplastic synthetic fibers having a hydrophilic property higher than that of the upper layer. These upper and lower layers are intermittently heat sealed together except at a central zone of the napkin by thermally debossing the upper and lower layers so that the central zone may be thicker and softer than the remaining zone.Type: GrantFiled: December 31, 1996Date of Patent: May 5, 1998Assignee: Uni-Charm CorporationInventors: Ichiro Wada, Hideki Kondo, Masataka Kinoshita
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Patent number: 5542301Abstract: Reduced eddy current flowmeters and the methods of fabrication are disclosed. A pedestal is fixed inside an outer casing of the flowmeter and a core is fixed on the pedestal. In one embodiment, the outer casing to which the core is fixed is rotated by a power roller and slits are cut into the core by a laser beam apparatus. The cutting of such slits reduces the eddy current in such flowmeters. Depending on the movement of the laser apparatus with respect to the rotation of the outer casing, a spiral slit or a circular slit may be formed. Other patterns of slits may also be cut. A lathe may be used in place of the laser apparatus. The flowmeter includes an exciting coil, a measuring pipe and other necessary elements which are fixed to the outer casing after the slits are cut in the core.Type: GrantFiled: May 15, 1995Date of Patent: August 6, 1996Assignee: Kabushiki Kaisha ToshibaInventor: Ichiro Wada
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Patent number: D437409Type: GrantFiled: September 30, 1999Date of Patent: February 6, 2001Assignee: Uni-Charm CorporationInventors: Yoshihisa Fujioka, Ichiro Wada
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Patent number: D445497Type: GrantFiled: October 27, 1999Date of Patent: July 24, 2001Inventors: Yoshihisa Fujioka, Ichiro Wada, Kouzou Abe, Noriyuki Kurita