Patents by Inventor Zenbei Meiwa
Zenbei Meiwa 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: 8273215Abstract: The present invention provides a method for producing a coated paper, including steps of coating a base paper coated with an aqueous solution of a water-soluble polymer with a coating liquid containing at least a pigment and an adhesive to produce a coated paper, and calendering the coated paper having a moisture content of not more than 5.5% by weight. The present invention also provides a method for producing a coated paper, including steps of coating a base paper having a moisture content of not more than 4% by weight with a coating liquid containing at least a pigment and an adhesive to produce a coated paper, and calendering the coated paper having a moisture content of not more than 5.5% by weight.Type: GrantFiled: October 14, 2008Date of Patent: September 25, 2012Assignees: Kao Corporation, Nippon Paper Industries Co., Ltd.Inventors: Kenichiro Yabe, Yasushi Ikeda, Mariko Ogawa, Zenbei Meiwa, Haruyuki Sato
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Publication number: 20110281487Abstract: The present invention provides the gas barrier molded article having high permeation barrier properties against oxygen gas, water vapor and the like. A gas barrier material containing cellulose fibers having an average fiber diameter of not more than 200 nm wherein the content of carboxyl group in a cellulose ranges from 0.1 to 2 mmol/g; and further a cross-linking agent having a reactive functional group or the cellulose fibers being dried or heated or a gas barrier molded article containing a molded substrate and a layer composed of the gas barrier material on the surface of the molded substrate.Type: ApplicationFiled: December 25, 2009Publication date: November 17, 2011Applicant: KAO CORPORATIONInventors: Kenta Mukai, Yoshiaki Kumamoto, Akira Isogai, Zenbei Meiwa, Takahiro Maezawa, Toru Ugajin
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Publication number: 20100273016Abstract: The present invention provides a surface treatment agent for paper such as a coating base paper. The surface treatment agent contains a cationic group-containing copolymer produced by polymerizing a specific vinyl monomer and a specific cationic group-containing vinyl monomer at a specific ratio.Type: ApplicationFiled: October 14, 2006Publication date: October 28, 2010Applicant: Kao CorporationInventors: Zenbei Meiwa, Kenichiro Yabe, Yasushi Ikeda
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Publication number: 20100206503Abstract: The present invention provides a method for producing a coated paper, including steps of coating a base paper coated with an aqueous solution of a water-soluble polymer with a coating liquid containing at least a pigment and an adhesive to produce a coated paper, and calendering the coated paper having a moisture content of not more than 5.5% by weight. The present invention also provides a method for producing a coated paper, including steps of coating a base paper having a moisture content of not more than 4% by weight with a coating liquid containing at least a pigment and an adhesive to produce a coated paper, and calendering the coated paper having a moisture content of not more than 5.5% by weight.Type: ApplicationFiled: October 14, 2008Publication date: August 19, 2010Applicants: KAO CORPORATION, NIPPON PAPER INDUSTRIES CO., LTD.Inventors: Kenichiro Yabe, Yasushi Ikeda, Mariko Ogawa, Zenbei Meiwa, Haruyuki Sato
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Patent number: 7744725Abstract: An additive for internal addition, which improves the paper qualities of a pulp sheet, such as stiffness and bulk which includes a polymer emulsion containing a natural cationic polymer (A) or synthetic cationic polymer (A?) and polymer particles (B) containing vinyl monomer-derived structural units.Type: GrantFiled: August 27, 2003Date of Patent: June 29, 2010Assignee: Kao CorporationInventors: Kazuo Kubota, Zenbei Meiwa, Hiromichi Takahashi, Yoshihiro Hasebe
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Publication number: 20060106137Abstract: The invention provides an additive for internal addition, which improves the paper qualities of a pulp sheet, such as stiffness and bulk. The invention relates to a paper quality improver for internal addition, which comprises a polymeric emulsion containing a natural cationic polymer (A) or synthetic cationic polymer (A?) and polymer particles (B) containing vinyl monomer-derived structural units.Type: ApplicationFiled: August 27, 2003Publication date: May 18, 2006Applicant: Kao CorporationInventors: Kazuo Kubota, Zenbei Meiwa, Hiromichi Takahashi, Yoshihiro Hasebe
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Publication number: 20020146380Abstract: A gel depilatory composition obtainable by mixing (a) a keratin reducing compound, (b) a hydrophilic high molecular compound having an ionic group, (c) a crosslinking agent and (d) water and has a high effect on the removal of body hairs and is decreased in odor peculiar to chemicals.Type: ApplicationFiled: January 24, 2002Publication date: October 10, 2002Applicant: Kao CorporationInventors: Hiromi Nambu, Yuki Hidaka, Zenbei Meiwa
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Publication number: 20010029243Abstract: The invention relates to disintegrating particles formed by agglomerating primary particles at least part of which are insoluble in water, wherein the agglomeration of the disintegrating particles is disintegrated in an aqueous solution containing a water-soluble salt by lowering the concentration of the water-soluble salt. The invention also relates to a cleanser or detergent composition that includes the disintegrating particles, a water-soluble salt at a concentration lower than its saturated solubility, a surfactant and water. The composition has excellent physical (mechanical) cleanability and stability with time and gives users a pleasant feeling upon use. The composition does not cause damage to and itch on the skin because the disintegrating particles are disintegrated during cleansing and rinsing, and it is extremely good in rinsability.Type: ApplicationFiled: May 28, 1999Publication date: October 11, 2001Inventors: ZENBEI MEIWA, MAMORU NAKAMURA, TATSUKI MATSUMOTO, YOSHIHIRO HASEBE, HIDEYUKI HANAZAWA, RITSUKO YAMAZAKI
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Patent number: 6294509Abstract: The invention relates to disintegrating particles formed by agglomerating primary particles at least part of which are insoluble in water, wherein the agglomeration of the disintegrating particles is disintegrated in an aqueous solution containing a water-soluble salt by lowering the concentration of the water-soluble salt. The invention also relates to a cleanser or detergent composition that includes the disintegrating particles, a water-soluble salt at a concentration lower than its saturated solubility, a surfactant and water. The composition has excellent physical (mechanical) cleanability and stability with time and gives users a pleasant feeling upon use. The composition does not cause damage to and itch on the skin because the disintegrating particles are disintegrated during cleansing and rinsing, and it is extremely good in rinsability.Type: GrantFiled: May 28, 1999Date of Patent: September 25, 2001Assignee: Kao CorporationInventors: Zenbei Meiwa, Mamoru Nakamura, Tatsuki Matsumoto, Yoshihiro Hasebe, Hideyuki Hanazawa, Ritsuko Yamazaki
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Patent number: 5695374Abstract: A nonwoven fabric for a liner of a floppy disk is characterized by a binder which is applied to the fibers of the nonwoven fabric. The binder comprises (a) an emulsion obtainable from a polymerizable unsaturated monomer having a functional group and other polymerizable unsaturated monomers capable of undergoing copolymerization with said polymerizable unsaturated monomer, and (b) a melamine compound having a methylol group.Type: GrantFiled: September 19, 1995Date of Patent: December 9, 1997Assignee: Kao CorporationInventors: Tadashi Sakuma, Keizo Takahashi, Zenbei Meiwa, Hiroshi Ikeda, Mami Murata
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Patent number: 5489469Abstract: A liquid-absorbent composite comprises (a) a water-absorbent polymer, (b) a water-insoluble inorganic material and (c) a water-insoluble hydrophilic fibrous material at a weight ratio between (a), (b) and (c) in the range of 100:5-1200:5-1200. It is very useful as the absorbent component for a sanitary napkin and a medical pad.Type: GrantFiled: May 28, 1993Date of Patent: February 6, 1996Assignee: Kao CorporationInventors: Takatoshi Kobayashi, Yukihiro Nakano, Zenbei Meiwa, Minoru Nakanishi, Tadashi Matsui
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Patent number: 4850991Abstract: An absorbent article comprises a liquid-permeable surface sheet, a liquid-impermeable leak-proof sheet and an absorbent layer disposed between the two sheets, said leak-proof sheet having on the outside surface a composite comprising a hydrophobic polymer having a glass transition temperature of zero degree centigrade or lower and foamed beads of a polymer. It is improved in the anti-slipping property, the leak-proof property and the permeability to moisture.Type: GrantFiled: September 10, 1987Date of Patent: July 25, 1989Assignee: KAO CorporationInventors: Minoru Nakanishi, Akira Sakurai, Takatoshi Kobayashi, Zenbei Meiwa, Norihiro Abe
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Patent number: 4845005Abstract: A dry developer composition for electrophotography is disclosed capable of retaining a positive charge and comprises a binder resin and a colorant, the binder resin being a polymer obtained by polymerizing, in a suspension, (A) 98 to 99.95 parts by weight of a hydrophobic copolymerizable monomer and (B) 0.05 to 2.0 parts by weight of a tertiary amino group-containing copolymerizable monomer having the formula (1): ##STR1## in which R1 is hydrogen or methyl, X is --COO-- or --CONH--, R2 and R3 are each an alkyl having 1 to 4 carbon atoms or an aryl and n is an integer of 1 to 4, in the presence of (C) 0.5 to 5.0 parts by weight of an azonitrile polymerization initiator.Type: GrantFiled: December 30, 1983Date of Patent: July 4, 1989Assignee: Kao CorporationInventors: Masao Niki, Zenbei Meiwa