Patents by Inventor Tetsuya Masuki
Tetsuya Masuki 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: 8647553Abstract: In a process of producing a stretch sheet, a strip-shaped laminate sheet 10A having an elastically stretchable elastic layer 1 and substantially inelastic, inelastic fiber layers 2 and 3 partially joined to each other at bonds 4 or a strip-shaped fibrous sheet containing an elastic component and a substantially inelastic component and having embossed regions formed by embossing in parts is stretched in directions starting from the bonds 4 or the embossed regions to obtain a stretch sheet 10. The stretch sheet has raised ridges and recessed grooves extending in the direction perpendicular to the stretch direction, and the bonds 4 or the embossed regions are present in the ridges.Type: GrantFiled: April 25, 2006Date of Patent: February 11, 2014Assignee: Kao CorporationInventors: Hideyuki Kobayashi, Koji Kanazawa, Akihiko Gunji, Tetsuya Masuki
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Patent number: 8053074Abstract: A stretch nonwoven fabric 10 contains inelastic fibers having a varied thickness along the length and elastic fibers. The nonwoven fabric 10 preferably includes an elastic fiber layer 1 and a substantially inelastic, inelastic fiber layer 2 on at least one side of the elastic fiber layer 1. The fibers with a varied thickness along the length are contained in the inelastic fiber layer 2. The nonwoven fabric 10 is conveniently produced by (a) superposing a web containing low-drawn, inelastic fibers having an elongation of 80% to 800% on at least one side of a web containing elastic fibers, (b) subjecting the webs, while in a non-united state, to through-air technique to obtain a fibrous sheet having the webs united together by thermal bonding the fibers at their intersections, and (c) stretching the fibrous sheet in at least one direction to draw the low-drawn inelastic fibers, followed by releasing the sheet from the stretch.Type: GrantFiled: May 18, 2007Date of Patent: November 8, 2011Assignee: Kao CorporationInventors: Takeshi Miyamura, Manabu Matsui, Tetsuya Masuki, Hideyuki Kobayashi, Koji Kanazawa, Hiroshi Kohira
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Publication number: 20090308524Abstract: A stretch nonwoven fabric 10 includes an elastic fiber layer 1 and inelastic fiber layers 2 and 3 having substantial inelasticity on the respective sides of the elastic fiber layer 1. The fiber layers 1, 2, and 3 are joined together over the entire area by thermal fusion at fiber intersections while the fibers of the elastic fiber layer 1 remain the fibrous form. The inelastic fiber layers 2 and 3 have part of their fibers enter the elastic fiber layer 1 and/or the elastic fiber layer has part of its fibers enter the inelastic fiber layers 2 and 3. The stretch nonwoven fabric is preferably produced by stacking an elastic fiber web and an inelastic fiber web on each other, applying a through-air system hot air treatment to the stack while the webs are in a non-united state to obtain a fibrous sheet having the webs united together, stretching the fibrous sheet in at least one direction, and releasing the fibrous sheet from the stretched state.Type: ApplicationFiled: April 24, 2006Publication date: December 17, 2009Applicant: Kao CorporationInventors: Akihiko Gunji, Hideyuki Kobayashi, Koji Kanazawa, Tetsuya Masuki, Takeshi Miyamura
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Publication number: 20090169802Abstract: A stretch nonwoven fabric 10 contains inelastic fibers having a varied thickness along the length and elastic fibers. The nonwoven fabric 10 preferably includes an elastic fiber layer 1 and a substantially inelastic, inelastic fiber layer 2 on at least one side of the elastic fiber layer 1. The fibers with a varied thickness along the length are contained in the inelastic fiber layer 2. The nonwoven fabric 10 is conveniently produced by (a) superposing a web containing low-drawn, inelastic fibers having an elongation of 80% to 800% on at least one side of a web containing elastic fibers, (b) subjecting the webs, while in a non-united state, to through-air technique to obtain a fibrous sheet having the webs united together by thermal bonding the fibers at their intersections, and (c) stretching the fibrous sheet in at least one direction to draw the low-drawn inelastic fibers, followed by releasing the sheet from the stretch.Type: ApplicationFiled: May 18, 2007Publication date: July 2, 2009Applicant: Kao CorporationInventors: Takeshi Miyamura, Manabu Matsui, Tetsuya Masuki, Hideyuki Kobayashi, Koji Kanazawa, Hiroshi Kohira
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Publication number: 20090035527Abstract: In a process of producing a stretch sheet, a strip-shaped laminate sheet 10A having an elastically stretchable elastic layer 1 and substantially inelastic, inelastic fiber layers 2 and 3 partially joined to each other at bonds 4 or a strip-shaped fibrous sheet containing an elastic component and a substantially inelastic component and having embossed regions formed by embossing in parts is stretched in directions starting from the bonds 4 or the embossed regions to obtain a stretch sheet 10. The stretch sheet has raised ridges and recessed grooves extending in the direction perpendicular to the stretch direction, and the bonds 4 or the embossed regions are present in the ridges.Type: ApplicationFiled: April 25, 2006Publication date: February 5, 2009Applicant: Kao CorporationInventors: Hideyuki Kobayashi, Koji Kanazawa, Akihiko Gunji, Tetsuya Masuki
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Publication number: 20050154363Abstract: A disposable diaper is provided comprising a liquid permeable topsheet, a liquid impermeable backsheet, and a liquid retentive absorbent member interposed between the topsheet and the backsheet. The absorbent member comprises, in admixture, a superabsorbent polymer A having a rate of absorption of 8 g/30 sec/0.3 g or more measured by DW method and a superabsorbent polymer B having a rate of absorption of 5 g/30 sec/0.3 g or less measured by DW method at a polymer A/polymer B weight ratio of 90/10 to 10/90. The admixture optionally further comprises fluff pulp in an amount of from 0 to 30% by weight.Type: ApplicationFiled: March 10, 2005Publication date: July 14, 2005Inventors: Masanori Minato, Shigeto Yanagihara, Kenji Ishiguro, Mikio Suzuki, Tetsuya Masuki
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Patent number: 6891080Abstract: A disposable diaper is provided comprising a liquid permeable topsheet, a liquid impermeable backsheet, and a liquid retentive absorbent member interposed between the topsheet and the backsheet. The absorbent member comprises, in admixture, a superabsorbent polymer A having a rate of absorption of 8 g/30 sec/0.3 g or more measured by DW method and a superabsorbent polymer B having a rate of absorption of 5 g/30 sec/0.3 g or less measured by DW method at a polymer A/polymer B weight ratio of 90/10 to 10/90. The admixture optionally further comprises fluff pulp in an amount of from 0 to 30% by weight.Type: GrantFiled: May 23, 2003Date of Patent: May 10, 2005Assignee: Kao CorporationInventors: Masanori Minato, Shigeto Yanagihara, Kenji Ishiguro, Mikio Suzuki, Tetsuya Masuki
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Patent number: 6649810Abstract: A disposable diaper is provided comprising a liquid permeable topsheet, a liquid impermeable backsheet, and a liquid retentive absorbent member interposed between the two sheets, wherein the disposable diaper has a product basis weight of 50 to 220 g/cm2, and a portion of the disposable diaper where the absorbent member is positioned has a portion having a rate of body fluid absorption of 3.0 g/sec or more and a portion having a saturated body fluid absorption of 75 g/100 cm2 or more.Type: GrantFiled: July 2, 2001Date of Patent: November 18, 2003Assignee: Kao CorporationInventors: Masanori Minato, Shigeto Yanagihara, Kenji Ishiguro, Mikio Suzuki, Tetsuya Masuki
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Publication number: 20030208174Abstract: A disposable diaper is provided comprising a liquid permeable topsheet, a liquid impermeable backsheet, and a liquid retentive absorbent member interposed between the topsheet and the backsheet. The absorbent member comprises, in admixture, a superabsorbent polymer A having a rate of absorption of 8 g/30 sec/0.3 g or more measured by DW method and a superabsorbent polymer B having a rate of absorption of 5 g/30 sec/0.3 g or less measured by DW method at a polymer A/polymer B weight ratio of 90/10 to 10/90. The admixture optionally further comprises fluff pulp in an amount of from 0 to 30% by weight.Type: ApplicationFiled: May 23, 2003Publication date: November 6, 2003Applicant: Kao CorporationInventors: Masanori Minato, Shigeto Tanagihara, Kenji Ishiguro, Mikio Suzuki, Tetsuya Masuki
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Patent number: 6642432Abstract: A compression recovery sheet which comprises a fiber aggregate containing 10 to 90% by weight of an elastomeric component and has a basis weight of 15 to 100 g/m2, a no-load thickness of 1 to 10 mm, and a compressive recovery of 60% or more and an absorbent article containing the same are disclosed.Type: GrantFiled: July 5, 2000Date of Patent: November 4, 2003Assignee: Kao CorporationInventors: Manabu Matsui, Tetsuya Masuki, Manabu Kaneda, Takanobu Miyamoto, Akihiko Gunji, Mikio Suzuki, Taiki Uchiyama
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Patent number: 6632974Abstract: An absorbent article includes a liquid permeable topsheet, a liquid-impermeable and moisture-permeable leakproof sheet, and a liquid retentive absorbent member interposed between the topsheet and the leakproof sheet. A foamed material is disposed in the absorbent member. The foamed material has a density of 5 to 35 kg/m3, a no-load thickness of 1 to 10 mm, and a compressive recovery of 60% or more in terms of (b/a×100), wherein a is a thickness (mm) measured after 24-hour standing with no load applied, and b is a thickness (mm) measured after 24-hour compression under a load of 180 gf/cm2 followed by 30-minute standing with no load applied. The foamed material is fixed at the prescribed position with an adhesive, which has been applied to have applied parts and unapplied parts.Type: GrantFiled: June 21, 2000Date of Patent: October 14, 2003Assignee: Kao CorporationInventors: Mikio Suzuki, Masao Kurahashi, Tetsuya Masuki, Akihiko Gunji
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Patent number: 6218593Abstract: An absorbent article includes a liquid permeable topsheet, a liquid impermeable back sheet, and an absorbent member interposed between the topsheet and the back sheet. While worn, the absorbent article forms a front waist body portion located at the front waist of a wearer and a rear waist body portion located at the rear waist of a wearer. The rear waist body portion has at each side thereof a fastening member for fastening the absorbent article, wherein the back sheet is made up of laminated sheeting composed of a finely porous resin film and nonwoven fabric. The fastening member is formed of a male sheet member of a mechanical fastener and designed to be brought into direct contact with the surface of the nonwoven fabric constituting the back sheet. The above-mentioned absorbent article has a good fit on a wearer, exhibits excellent leakproofness and breathability while worn, and has an excellent texture.Type: GrantFiled: April 15, 1997Date of Patent: April 17, 2001Assignee: Kao CorporationInventors: Yasuhiro Torimae, Tetsuya Masuki, Tetsuji Kitoh, Jun Sasaki, Manabu Kaneda
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Patent number: 5068070Abstract: A process for making a film including forming a composite material of a thermoplastic film into an annular original film having at least two thick portions according to the inflation process, making the annular original film into a flat shape such that the thick portions are located at substantially opposite ends thereof, and stretching the flat annular original film by clamping the thick portions.Type: GrantFiled: October 2, 1989Date of Patent: November 26, 1991Assignee: Kao CorporationInventors: Akihiko Gunji, Tetsuya Masuki, Hidenori Shirai