Patents by Inventor Kazunori Nishizawa

Kazunori Nishizawa 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: 7847145
    Abstract: The present invention relates to a technique for a body fluid absorbent article including a moving absorbent, capable of using a wider range of the absorbent for absorption and efficiently moving the absorbent. The present invention is characterized in that the absorbent 25 including a body fluid absorption and holding function and a shrinkage function when contacting with a body fluid is provided in a body fluid absorbent portion, and an absorption control layer 40 a liquid impermeable range of which is reduced whenever the body fluid is excreted is provided on the absorbent 25.
    Type: Grant
    Filed: March 29, 2004
    Date of Patent: December 7, 2010
    Assignee: Daio Paper Corporation
    Inventors: Yuka Kurita, Kazunori Nishizawa
  • Patent number: 7491864
    Abstract: An absorbent article for body fluids aimed at utilizing an entire absorbent member efficiently and having a thinner form, a larger absorption capacity and longer wearability as a whole is provided. The absorbent member 25 has a contraction material 27 which contracts itself on contacting urine passing through a liquid-permeable surface layer provided on the side facing to the body skin and an absorbent material for body fluids 26 which is practically united with the contraction material 27 is arranged on the upper side of a leak proof layer provided on the side farther from the body skin.
    Type: Grant
    Filed: February 1, 2002
    Date of Patent: February 17, 2009
    Assignee: DAIO Paper Corporation
    Inventors: Kazunori Nishizawa, Tomotsugu Matsui, Tomohiro Otani, Yuka Kurita
  • Publication number: 20060116651
    Abstract: The present invention relates to a technique for a body fluid absorbent article including a moving absorbent, capable of using a wider range of the absorbent for absorption and efficiently moving the absorbent. The present invention is characterized in that the absorbent 25 including a body fluid absorption and holding function and a shrinkage function when contacting with a body fluid is provided in a body fluid absorbent portion, and an absorption control layer 40 a liquid impermeable range of which is reduced whenever the body fluid is excreted is provided on the absorbent 25.
    Type: Application
    Filed: March 29, 2004
    Publication date: June 1, 2006
    Inventors: Yuka Kurita, Kazunori Nishizawa
  • Publication number: 20040127874
    Abstract: The present invention relates to an absorbent article for body fluids aimed at utilizing an entire absorbent member efficiently and having a thinner form, a larger absorption capacity and longer wearability as a whole. The absorbent member 25 comprising a contraction material 27 which contracts itself on contacting urine passing through a liquid-permeable surface layer provided on the side facing to the body skin and an absorbent material for body fluids 26 which is practically united with the contraction material 27 is arranged on the upper side of a leak proof layer provided on the side farther from the body skin.
    Type: Application
    Filed: January 30, 2004
    Publication date: July 1, 2004
    Inventors: Kazunori Nishizawa, Tomotsugu Matsui, Tomohiro Ontani, Yuka Kurita
  • Patent number: 5593779
    Abstract: A fiber for clothing, the fiber having a layer of crosslinked enzyme protein on a surface of a single fiber or a monofilament thereof; and a method for producing the fiber for clothing having the steps of immersing a fiber into a solution containing an enzyme protein to adsorb the enzyme protein onto a surface of a single fiber or a monofilament thereof, and crosslinking the enzyme protein adsorbed on the surface of the single fiber or the monofilament with a crosslinking agent.
    Type: Grant
    Filed: June 7, 1995
    Date of Patent: January 14, 1997
    Assignee: Kao Corporation
    Inventors: Kazuo Mori, Kazunori Nishizawa, Yoshifumi Niki
  • Patent number: 5185887
    Abstract: In a data-base system including a data-base management system, a dictionary device for managing definition information and generation management information in a data base, and a dictionary file for storing the generation management information, a generation management system is provided between the data-base management system and a data storage file to acquire data in accordance with the generation management information, the dictionary device is made independent of the data-base management system and connected to an input/output device, the dictionary file and the data-base management system, new or update generation management information is registered in the dictionary file by means of the dictionary device when the new or update generation information classified for each item is designated through the input/output device while the timing for acquiring the generation information is designated suitably, and the data-base management system is operated to issue a data-base output request to the generation ma
    Type: Grant
    Filed: July 2, 1990
    Date of Patent: February 9, 1993
    Assignees: Hitachi, Ltd., Hitachi Software Engineering Co., Ltd.
    Inventors: Noriyuki Takahashi, Kazunori Nishizawa, Rinichi Takashi, Naofumi Sakai, Yukiharu Tanabe, Nobuhiro Yasue
  • Patent number: 5005249
    Abstract: A vehicle windshield wiper comprises; a driving rod which is reciprocated by crank-coupling with a wiper motor, a double arm lever reciprocally swung around a pivot shaft by the driving rod, a driving-side wiper blade which is swung by fixing in the pivot shaft, a driving-side lever which is fixedly secured in a downward extending portion of the pivot shaft, a coupling rod rotatably coupled with the driving-side lever, and a driven-side lever which is swung by reciprocation of the coupling rod and swings a driven-side wiper blade.
    Type: Grant
    Filed: March 13, 1989
    Date of Patent: April 9, 1991
    Assignee: Asmo Co., Ltd.
    Inventors: Kazunori Nishizawa, Mitsutaka Abe, Hiroshi Matsumoto, Shinji Imamura
  • Patent number: 4794034
    Abstract: A sanitary, liquid-absorbing article has as surface material a non-woven fabric comprising two layers integrated by a binder, the first layer having a basis weight of 5 to 15 g/m.sup.2, the second layer having a basis weight of 20 to 45 g/m.sup.2, wherein when the non-woven fabric is in the wet state, E=K.rho..sub.F.sup.a ; .rho..sub.FO .ltoreq.1.2.times.10.sup.-2 g/cm.sup.3 ; and K.gtoreq.1.2.times.10.sup.6 as defined in the following compression characteristic formula of the non-woven fabric: ##EQU1## wherein E is a Young's modulus (g/cm.sup.2), P is a pressure (g/cm.sup.2), .rho..sub.F is an apparent specific weight (g/cm.sup.3) and .rho..sub.FO is a .rho..sub.F value when the pressure is 0 g/cm.sup.2.
    Type: Grant
    Filed: May 3, 1982
    Date of Patent: December 27, 1988
    Assignee: Kao Soap Co., Ltd.
    Inventors: Kazunori Nishizawa, Osamu Ito, Iwao Miyashita
  • Patent number: 4642838
    Abstract: A bearing device of the bending and stretching type windshield wiper having a gear train (7, 8, 9) to interlink the wiper link output shaft (2) and the wiper arm head shaft (3), wherein the improvement comprising, a wiper pivot (4) having the first installing hole on the center thereof, and fixed to the body (1) of a car; a stationary gear member (7) extrudingly providing a boss part (71) which has a bearing hole in the center thereof, the stationary gear member (7) is rigidly secured with the wiper pivot (4), and of which the boss part (71) is inserted in the first installing hole of said wiper pivot (4); a bearing member (10) of a cylinder form; and a gear housing member (5) extrudingly providing a cylinder part (51) which has the second installing hole on the center thereof, the cylinder part (51) of the gear housing member (5) is inserted in the bearing hole of the stationary gear member (7) together with the bearing member (10) and the wiper link output shaft (2) is fixedly secured in the second installi
    Type: Grant
    Filed: October 28, 1985
    Date of Patent: February 17, 1987
    Assignee: ASMO Co., Ltd.
    Inventors: Kazuhiro Fuzita, Kazunori Nishizawa, Shinzi Imamura
  • Patent number: 4626252
    Abstract: A disposable diaper in which the backing sheet is a porous, vapor-permeable, liquid-impermeable film made by mixing 100 parts by weight of a polyolefin resin with from 28 to 200 parts by weight of filler and from 10 to 70 parts by weight of a liquid or wax-like hydrocarbon polymer, molding the mixture to form a film and then stretching the film uniaxially or biaxially so that its dimension after stretching is more than 1.2 times as large as its dimension prior to stretching.
    Type: Grant
    Filed: July 29, 1985
    Date of Patent: December 2, 1986
    Assignee: Kao Corporation
    Inventors: Kazunori Nishizawa, Hiroshi Mizutani
  • Patent number: 4623342
    Abstract: A disposable diaper comprises a liquid-permeable surface sheet, a liquid-impermeable backing sheet, and an absorbent pad sandwiched between the two sheets, characterized in that water-absorptive, shrinkable fiber strings, which contract lengthwise on contact with water and are rendered stretchable, are secured to the two sheets, extending midway longitudinally of the diaper in parallel along, but without overlapping, the both edges of the pad, the edge portions of the surface sheet outside the water-absorptive, shrinkable fiber strings and the surface sheet portion on the absorbent pad being partly bonded together at two spots about halfway of the length, the distance between the two bonded spots being at least 50 mm and the bonded spots themselves being 10 to 50 mm long each, and elastic, stretch members, at least 70 mm long each and having a combined elastic force or tensile strength (the weight equivalent to the force required to stretch the diaper including any shrank portions thereof up to the total diap
    Type: Grant
    Filed: November 5, 1984
    Date of Patent: November 18, 1986
    Assignee: Kao Corporation
    Inventors: Osamu Ito, Hiroshi Mizutani, Kazunori Nishizawa
  • Patent number: 4524577
    Abstract: The twisted yarn is prepared by twisting (1) a single yarn comprising a water-insoluble fiber having a degree of water swelling of at least 10 cc/g or (2) a plurality of single yarns comprising a water-insoluble fiber having a degree of water swelling of at least 10 cc/g or a plurality of yarns comprising at least 50% by weight of such single yarns and water-nonswellable yarns so that the twist constant is at least 2.5.
    Type: Grant
    Filed: December 10, 1982
    Date of Patent: June 25, 1985
    Assignee: Kao Corporation
    Inventors: Osamu Ito, Harumasa Yamasaki, Itsuo Minakata, Kazunori Nishizawa
  • Patent number: 4477467
    Abstract: An insect repellent is disclosed which comprises, as essential ingredients, N,N-diethyltoluamide as a repellent component, and an aromatic proton donor in which the aromatic rings are substituted directly by hydroxyl and/or carboxyl groups. This repellent composition has a longer lasting effect due to increased resistance to absorption through the skin.
    Type: Grant
    Filed: January 25, 1982
    Date of Patent: October 16, 1984
    Assignee: Kao Soap Co., Ltd.
    Inventors: Kazunori Nishizawa, Haruya Kato
  • Patent number: 4447240
    Abstract: A disposable diaper is disclosed which comprises a liquid-permeable surface sheet, a liquid-impermeable back face sheet and a water-absorbing layer disposed between said sheets, wherein water-absorbing shrinkable fibers, the length of which is reduced on contact with water to impart elasticity to the fibers, are fixed across the central portion of the diaper in the lengthwise direction of the diaper without being lapped over the water-absorbing layer and said water-absorbing layer is connected to said water-absorbing shrinkable fibers by cellulose fibers.
    Type: Grant
    Filed: September 15, 1981
    Date of Patent: May 8, 1984
    Assignee: Kao Soap Co., Ltd.
    Inventors: Osamu Ito, Kazunori Nishizawa
  • Patent number: 4418524
    Abstract: A twisted combination yarn is disclosed which is made of a first yarn which contracts when it absorbs water, and a second yarn plied with the first yarn which is not substantially changed in length by contact with water. The twisted combination yarn of the invention has a high water absorbing capacity, and contracts and becomes elastic when it absorbs water.
    Type: Grant
    Filed: June 16, 1981
    Date of Patent: December 6, 1983
    Assignee: Kao Soap Co., Ltd.
    Inventors: Osamu Ito, Kazunori Nishizawa
  • Patent number: 4364992
    Abstract: An absorbent article comprising an upper, first, absorbing layer formed so that its density under a load of 35 g/cm.sup.2 is lower than 0.045 g/cm.sup.3 both in the dry state and in the wet state and the weight per square meter is 15 to 50 g, and a lower, second, absorbing layer having a super water-absorbing polymer fixed thereto.
    Type: Grant
    Filed: June 12, 1981
    Date of Patent: December 21, 1982
    Assignee: Kao Soap Co., Ltd.
    Inventors: Osamu Ito, Kazunori Nishizawa
  • Patent number: 4357938
    Abstract: A disposable diaper comprising a water-absorbing layer located between a liquid-permeable surface sheet and a liquid-impermeable backing sheet, wherein water-absorbing shrinkable fibers, which shrink in the direction of the fiber length and are rendered elastic on absorption of water, are fixed to and extend along the central portion in the lengthwise direction of the disposable diaper in such a manner that the water-absorbing shrinkable fibers are not placed on top of the water-absorbing layer, and wherein means is provided so that the water-absorbing shrinkable fibers become wetted when the diaper is wetted, said water-absorbing shrinkable fibers exhibiting a percent shrinkage of at least 15% and a shrinking force of at least 100 g when said fibers are wetted.
    Type: Grant
    Filed: June 26, 1981
    Date of Patent: November 9, 1982
    Assignee: Kao Soap Co., Ltd.
    Inventors: Osamu Ito, Harumasa Yamasaki, Kazunori Nishizawa
  • Patent number: 4306559
    Abstract: A disposable diaper comprising a urine-permeable surface sheet, a urine-impervious backing sheet and an absorbent pad interposed between said two sheets, said disposable diaper being characterized in that the urine-impervious backing sheet comprises at least two layers, the first layer being a substantially urine-impermeable, vapor-permeable sheet, and the second layer being a urine-impermeable sheet which is perforated at an aperture ratio lower than 30%, said first and second layer being integrally formed.
    Type: Grant
    Filed: February 27, 1980
    Date of Patent: December 22, 1981
    Assignee: Kao Soap Company, Ltd.
    Inventors: Kazunori Nishizawa, Toshihiro Shirase, Hiroshi Mizutani
  • Patent number: 4269188
    Abstract: A disposable diaper comprises an absorbing material comprising a sheet containing water-absorbing polymer powder and two papers to fix said powder between them, a great number of slits being formed on said sheet, and fluff pulp layers sandwiching said sheet, among said two papers the paper which is close to the surface of the diaper where to contact with the skin being a high wet strength paper, the paper which is close to the back face of the diaper being a low wet strength paper.
    Type: Grant
    Filed: July 23, 1979
    Date of Patent: May 26, 1981
    Assignee: Kao Soap Co., Ltd.
    Inventors: Kazunori Nishizawa, Toshihiro Shirose, Osamu Itoh