Patents by Inventor Kazuaki Onishi

Kazuaki Onishi 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: 6869423
    Abstract: A disposable diaper includes a basic absorbent batt structure and a supplementary absorbent batt structure placed on the basic absorbent batt structure. The diaper is formed with a feces receiving space surrounded by the supplementary absorbent batt structure and bottom and side surfaces of a cavity and extending from a crotch region toward a front waist region so that an upper opening of the cavity is partially uncovered in the crotch region 31 and thereby forms a feces inlet leading to the space.
    Type: Grant
    Filed: February 14, 2002
    Date of Patent: March 22, 2005
    Assignee: Uni-Charm Corporation
    Inventors: Kazuaki Onishi, Yasushi Sayama, Hiroyuki Tanji
  • Patent number: 6706943
    Abstract: A body fluid absorbent panel including fibers containing hydrophilic fibers by 80-100% by weight and superabsorbent polymer particles contains heat-fusible fibers which are fused to intertwine the fibers and thereby to form a three-dimensional network structure wherein the high absorption polymer particles are held between respective pairs of the adjacent fibers or bonded to the fibers by means of binder, and thereby falling off of the polymer particles can be prevented and the absorption efficiency can be improved.
    Type: Grant
    Filed: October 18, 2001
    Date of Patent: March 16, 2004
    Assignee: Uni-Charm Corporation
    Inventors: Kazuaki Onishi, Masashi Nakashita
  • Patent number: 6632206
    Abstract: A disposable diaper is locally formed with a protuberance in a transversely middle zone of the diaper between urethral meatus and anus of a diaper wearer, and the diaper thus formed is capable of preventing loose passage discharged thereon form flowing toward the front side of the wearer.
    Type: Grant
    Filed: September 21, 2000
    Date of Patent: October 14, 2003
    Assignee: Uni-Charm Corporation
    Inventors: Kazuaki Onishi, Norihiko Ishikawa, Yoko Yabe
  • Patent number: 6626880
    Abstract: A sanitary article includes an absorbent structure composed of a liquid-pervious topsheet, a liquid-impervious backsheet and a liquid-absorbent core disposed therebetween, an absorbent upper panel which is formed with a fibrous web and attached to an upper surface of the topsheet. The absorbent upper panel has a plurality of openings extending through the panel in its thickness direction and spaced one from another in a direction intersecting the thickness direction and a wall defining each of the openings wherein the wall has a fiber density grade which is higher in an upper region of the wall and lower in a lower region of the wall lying adjacent the topsheet.
    Type: Grant
    Filed: March 30, 2001
    Date of Patent: September 30, 2003
    Assignee: Uni-Charm Corporation
    Inventor: Kazuaki Onishi
  • Publication number: 20030171726
    Abstract: An absorbent article contains a hydrophilic fiber processed by a water-soluble deodorant containing a graft polymer having a deodorant functional group. This constitution ensures to have large deodorizing function per unit weight, compared to a particulate deodorant. Consequently, the constitution allows to decrease a weight of the deodorant and to excel in deodorizing function. Moreover, it is unnecessary to fix the deodorant and easy to compound with the absorbent article. Therefore, it allows to obtain an absorbent article having excellent aesthetics and cleanness.
    Type: Application
    Filed: January 22, 2003
    Publication date: September 11, 2003
    Inventors: Kazuaki Onishi, Takayuki Hisanaka
  • Patent number: 6590138
    Abstract: A sanitary article having a multi-layered absorbent member includes a panel stacked in two layers each having a plurality of openings extending through this member in its thickness direction and a plurality of fibrous assembly regions extending between each pair of the adjacent openings, the openings in the upper layer of the panel are out of alignment with the corresponding openings in the lower layer of the panel and each of the openings in the upper layer of the panel is divided in two or more sections by the fibrous assembly regions in the lower layer of the panel.
    Type: Grant
    Filed: March 6, 2001
    Date of Patent: July 8, 2003
    Assignee: Uni-Charm Corp.
    Inventor: Kazuaki Onishi
  • Patent number: 6458111
    Abstract: A disposable absorbent article including a fecal matter retaining layer, the retaining layer including a three dimensional structure having a thickness of 5˜100 mm adapted to be placed against a wearer's hip is formed with at least one opening having an area of 20˜30000 mm2 and at least one fecal matter retaining cavity having a depth of 2.5 mm.
    Type: Grant
    Filed: May 24, 2000
    Date of Patent: October 1, 2002
    Assignee: Uni-Charm Corporation
    Inventors: Kazuaki Onishi, Norihiko Ishikawa, Yoko Yabe
  • Patent number: 6454753
    Abstract: A disposable diaper includes tape fasteners each having an elastically stretchable/contractile basic tape member and a hook member attached onto an inner surface of the basic tape member. The hook member has inner and outer side edges. and the inner side edge extends towards a proximal end portion of the basic tape member in its transversely middle zone.
    Type: Grant
    Filed: April 20, 1999
    Date of Patent: September 24, 2002
    Assignee: Uni-Charm Corporation
    Inventors: Nariaki Shimoe, Kazuaki Onishi
  • Patent number: 6450998
    Abstract: A disposable article for dealing with feces adapted to be used in conjunction with a disposable diaper or diaper cover. The article includes a feces receiving region that is provided in the form of a laminate that includes a top layer provided with at least one opening having an area of 20˜500 mm2, a feces holding layer in the form of a three-dimensional network structure underlying the top layer, a liquid-absorbent layer underlying the holding layer and a liquid-impervious back layer covering a lower surface of the absorbent layer. The laminate has its width progressively reduced toward a front end of the feces receiving pocket and a leakage barrier is formed along transversely opposite side edges of the top layer.
    Type: Grant
    Filed: June 29, 2000
    Date of Patent: September 17, 2002
    Assignee: Uni-Charm Corporation
    Inventors: Toshifumi Otsubo, Hiroyuki Tanji, Yoshitaka Mishima, Naomi Suzuki, Kazuaki Onishi, Norihiko Ishikawa, Yoko Yabe
  • Publication number: 20020120248
    Abstract: A disposable diaper includes a basic absorbent batt structure and a supplementary absorbent batt structure placed thereon. Contraction of an elastic member causes transversely opposite side edge regions of the two batt structures, respectively, to be pulled nearer to a longitudinal center line, resulting in that the zone of the former batt structure underlying a distal end portion of the latter batt structure curves downward with respect to a lower surface of the latter batt structure while the distal end portion of the latter batt structure curves upward with respect to a body facing surface of the two batt structures, a pocket opening from a front waist region toward a crotch region.
    Type: Application
    Filed: February 26, 2002
    Publication date: August 29, 2002
    Inventors: Kazuaki Onishi, Yasushi Sayama, Hiroyuki Tanji
  • Publication number: 20020111594
    Abstract: A disposable diaper includes a basic absorbent batt structure and a supplementary absorbent batt structure placed on the basic absorbent batt structure. The diaper is formed with a feces receiving space surrounded by the supplementary absorbent batt structure and bottom and side surfaces of a cavity and extending from a crotch region toward a front waist region so that an upper opening of the cavity is partially uncovered in the crotch region 31 and thereby forms a feces inlet leading to the space.
    Type: Application
    Filed: February 14, 2002
    Publication date: August 15, 2002
    Inventors: Kazuaki Onishi, Yasushi Sayama, Hiroyuki Tanji
  • Publication number: 20020099351
    Abstract: A disposable diaper includes a basic absorbent batt structure having front and rear waist regions and a crotch region, a pair of barrier cuffs extending along opposite sides of the basic absorbent batt structure and at least one supplementary absorbent batt structure placed on the front waist region of the basic absorbent batt structure between the barrier cuffs. The supplementary absorbent batt structure has a proximal end portion thereof joined to the front waist region of the basic absorbent batt structure and has the vicinity of a distal end portion thereof joined to the vicinities of the barrier cuffs.
    Type: Application
    Filed: January 23, 2002
    Publication date: July 25, 2002
    Inventors: Kazuaki Onishi, Yasushi Sayama, Hiroyuki Tanji
  • Publication number: 20020049417
    Abstract: A body fluid absorbent panel including fibers containing hydrophilic fibers by 80-100% by weight and superabsorbent polymer particles contains heat-fusible fibers which are fused to intertwine the fibers and thereby to form a three-dimensional network structure wherein the high absorption polymer particles are held between respective pairs of the adjacent fibers or bonded to the fibers by means of binder, and thereby falling off of the polymer particles can be prevented and the absorption efficiency can be improved.
    Type: Application
    Filed: October 18, 2001
    Publication date: April 25, 2002
    Inventors: Kazuaki Onishi, Masashi Nakashita
  • Publication number: 20020045878
    Abstract: A disposable diaper includes tape fasteners each having an elastically stretchable/contractile basic tape member and a hook member attached onto an inner surface of the basic tape member. The hook member has inner and outer side edges and the inner side edge extends towards a proximal end portion of the basic tape member in its transversely middle zone.
    Type: Application
    Filed: April 20, 1999
    Publication date: April 18, 2002
    Inventors: NARIAKI SHIMOE, KAZUAKI ONISHI
  • Publication number: 20020026168
    Abstract: A body fluid absorbent panel including openings and a barrier which comprises, in turn, a shape keeping layer formed with a plurality of thermoplastic synthetic resin fibers and a body fluid retaining layer formed with a plurality of thermoplastic synthetic fibers mixed with an absorbent material, wherein the synthetic resin fibers are hot welded together at contact points of these fibers in the shape keeping layer as well as in the body fluid retaining layer and the synthetic resin fibers of these layers are hot welded together at contact points of these fibers along an interface of the shape keeping layer and the body fluid absorbent layer.
    Type: Application
    Filed: August 24, 2001
    Publication date: February 28, 2002
    Inventors: Toshiya Yagou, Kazuaki Onishi
  • Patent number: 6312531
    Abstract: Soft magnetic powder of Fe—Al—Si system of which magnetostrictive constant &lgr; takes a positive value at the room temperature is employed to produce a magnetic composite article so that a temperature characteristic of core-loss of the article takes a negative value at the room temperature. Excellent magnetic characteristics such as a low core-loss and a high permeability can be obtained at a high frequency band.
    Type: Grant
    Filed: December 22, 1998
    Date of Patent: November 6, 2001
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Nobuya Matsutani, Yuji Mido, Kazuaki Onishi
  • Publication number: 20010037103
    Abstract: A sanitary article includes an absorbent structure composed of a liquid-pervious topsheet, a liquid-impervious backsheet and a liquid-absorbent core disposed therebetween, an absorbent upper panel which is formed with a fibrous web and attached to an upper surface of the topsheet. The absorbent upper panel has a plurality of openings extending through the panel in its thickness direction and spaced one from another in a direction intersecting the thickness direction and a wall defining each of the openings wherein the wall has a fiber density grade which is higher in an upper region of said wall and lower in a lower region of said wall lying adjacent the topsheet.
    Type: Application
    Filed: March 30, 2001
    Publication date: November 1, 2001
    Inventor: Kazuaki Onishi
  • Publication number: 20010023339
    Abstract: A sanitary article having a multi-layered absorbent member includes a panel stacked in two layers each having a plurality of openings extending through this member in its thickness direction and a plurality of fibrous assembly regions extending between each pair of the adjacent openings, the openings in the upper layer of the panel are out of alignment with the corresponding openings in the lower layer of the panel and each of the openings in the upper layer of the panel is divided in two or more sections by the fibrous assembly regions in the lower layer of the panel.
    Type: Application
    Filed: March 6, 2001
    Publication date: September 20, 2001
    Inventor: Kazuaki Onishi
  • Patent number: 6014071
    Abstract: A choke coil for preventing harmonic distortions having a plurality of laminated iron core sheets formed into a core. A first coil is wound around a first limb of a first core, and a second coil is wound around a first limb of a second core. A third coil is wound around the second limb of both the first core and the second core, and the second core is disposed within the magnetic circuit of the first magnetic core. The iron core sheets have embossments formed on a front and back side for fitting the iron core sheets together. The embossments have longitudinal sides formed orthogonally to the direction of magnetic fluxes in the core, and may be inwardly inclined to face each other.
    Type: Grant
    Filed: June 12, 1998
    Date of Patent: January 11, 2000
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Kazuaki Onishi, Hidenori Uematsu, Tsunetsugu Imanishi, Munekazu Sato
  • Patent number: 5990376
    Abstract: A disposable absorbent undergarment includes a liquid-permeable topsheet, a liquid-impermeable backsheet and a absorbent core disposed therebetween. The backsheet consists of a breathable plastic film and a breathable fibrous sheet integrally laminated with an outer surface of the breathable plastic film. The breathable fibrous sheet consists of at least a first component layer and a second component layer being in contact with the first component layer. The first component layer has a wettability with body fluids higher than that of the second component layer.
    Type: Grant
    Filed: March 31, 1998
    Date of Patent: November 23, 1999
    Assignee: Uni-Charm Corporation
    Inventors: Yasushi Inoue, Kazuaki Onishi, Yasushi Sayama