Patents by Inventor Kazuo Kuwahara
Kazuo Kuwahara 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: 11183693Abstract: One aspect provides a resin composition that is used for an electrode of a power storage device and that has excellent ion permeability while ensuring good binding properties with an electrode. One aspect of the present disclosure relates to a resin composition for an electrode of a power storage device. The resin composition contains polymer particles. The polymer particles have ion permeability. A rate of change in elasticity of the polymer particles before and after treatment with an electrolyte solution [(modulus of elasticity after treatment)/(modulus of elasticity before treatment)] is 30% or less.Type: GrantFiled: July 28, 2017Date of Patent: November 23, 2021Assignee: KAO CORPORATIONInventors: Atsushi Hiraishi, Kazuo Kuwahara, Kei Takahashi, Kazuo Oki, Hideki Goto
-
Publication number: 20200381734Abstract: One aspect provides a resin composition that is used for an electrode of a power storage device and that has excellent ion permeability while ensuring good binding properties with an electrode. One aspect of the present disclosure relates to a resin composition for an electrode of a power storage device. The resin composition contains polymer particles. The polymer particles have ion permeability. A rate of change in elasticity of the polymer particles before and after treatment with an electrolyte solution [(modulus of elasticity after treatment)/(modulus of elasticity before treatment)] is 30% or less.Type: ApplicationFiled: July 28, 2017Publication date: December 3, 2020Applicant: Kao CorporationInventors: Atsushi HIRAISHI, Kazuo KUWAHARA, Kei TAKAHASHI, Kazuo OKI, Hideki GOTO
-
Patent number: 10211460Abstract: A positive electrode for a battery includes a positive active material, a conductive agent, and a copolymer. The copolymer includes a constituent unit (a) represented by the following general formula (1) and a constituent unit (b) represented by the following general formula (2): (wherein R1, R2, R3, R5, R6, R7 and R9 are the same or different and denote a hydrogen atom, a methyl group or an ethyl group, R4 denotes a hydrocarbon group having 8 to 30 carbon atoms, R8 denotes a linear or branched alkylene group having 2 to 4 carbon atoms, X1 and X2 denote an oxygen atom or NH, and p denotes a number of 1 to 50).Type: GrantFiled: April 2, 2013Date of Patent: February 19, 2019Assignee: GS Yuasa International Ltd.Inventors: Kazuo Kuwahara, Shuichi Inaya, Yuichi Ito, Kohei Tsujita, Mitsuhiko Samata
-
Patent number: 9033020Abstract: A labeling device comprising a guide frame, rotatably supporting a label roll formed by winding around a core a label holding band, which releasably holds a plurality of labels in series, and a peeling member which peels the printed label from the band by bending the band at an acute angle towards a slanting lower part in relation to the direction of movement of the band. The labeling device comprises a guide unit that is pivotally provided for nipping and holding a leading edge of the label holding band in front of the peeling member and is rotatable around the peeling member with the leading edge of the band so that the leading edge of the band is automatically brought to a feeding roller arranged on the slanting lower part of the peeling member in relation to the direction of the movement of the label holding band.Type: GrantFiled: October 29, 2010Date of Patent: May 19, 2015Assignees: Techno Medica Co., Ltd., Autonics Co., Ltd.Inventors: Toshikazu Matsumoto, Yoshimi Hirasawa, Yasushi Nakano, Mitsuyuki Suzuki, Kazuo Kuwahara, Masashi Hamano, Takeshi Yokochi
-
Publication number: 20150028264Abstract: A positive electrode for a battery includes a positive active material, a conductive agent, and a copolymer. The copolymer includes a constituent unit (a) represented by the following general formula (1) and a constituent unit (b) represented by the following general formula (2): (wherein R1, R2, R3, R5, R6, R7 and R9 are the same or different and denote a hydrogen atom, a methyl group or an ethyl group, R4 denotes a hydrocarbon group having 8 to 30 carbon atoms, R8 denotes a linear or branched alkylene group having 2 to 4 carbon atoms, X1 and X2 denote an oxygen atom or NH, and p denotes a number of 1 to 50.Type: ApplicationFiled: April 2, 2013Publication date: January 29, 2015Inventors: Kazuo Kuwahara, Shuichi Inaya, Yuichi Ito, Kohei Tsujita, Mitsuhiko Samata
-
Patent number: 8580284Abstract: Abstract Provided is an oil-based cosmetic preparation which retains a smooth feel. Provided is an oil-based cosmetic preparation containing the following components (A), (B), and (C): (A) a cellulose derivative having a cellulose skeleton in a main chain, in which 67 mol % or more in total hydroxyl groups are substituted with a group —O-M-R, wherein M represents CH2 or a carbonyl group C?O, and R represents a straight or branched alkyl or alkenyl group having 3 to 40 carbon atoms; (B) an ester oil which is liquid at 25° C.; and (C) a hydrocarbon oil which is liquid at 25° C., in which a weight ratio (B)/(C) of the component (B) to the component (C) is 8/1 to 1/4.Type: GrantFiled: September 24, 2009Date of Patent: November 12, 2013Assignee: Kao CorporationInventors: Eiko Tamura, Kouji Ohsaki, Kazuo Kuwahara, Kazuhiro Ishikawa, Kenko Kurita, Yu Saito
-
Publication number: 20130213577Abstract: A labeling device comprising a guide frame, rotatably supporting a label roll formed by winding around a core a label holding band, which releasably holds a plurality of labels in series, and a peeling member which peels the printed label from the band by bending the band at an acute angle towards a slanting lower part in relation to the direction of movement of the band. The labeling device comprises a guide unit that is pivotally provided for nipping and holding a leading edge of the label holding band in front of the peeling member and is rotatable around the peeling member with the leading edge of the band so that the leading edge of the band is automatically brought to a feeding roller arranged on the slanting lower part of the peeling member in relation to the direction of the movement of the label holding band.Type: ApplicationFiled: October 29, 2010Publication date: August 22, 2013Applicants: AUTONICS CO., LTD., TECHNO MEDICA CO., LTD.Inventors: Toshikazu Matsumoto, Yoshimi Hirasawa, Yasushi Nakano, Mitsuyuki Suzuki, Kazuo Kuwahara, Masashi Hamano, Takeshi Yokochi
-
Patent number: 8349943Abstract: The present invention provides a nonaqueous pigment dispersant containing a copolymer having: (a) a constituent unit derived from a nitrogen atom-containing polymerizable macromonomer having an ethylenic unsaturated double bond at one terminal, and (b) a constituent unit derived from a monomer unit having an ethylenic unsaturated double bond, being copolymerizable with the nitrogen atom-containing polymerizable macromonomer of constituent (a), and a pigment dispersion composition containing the dispersant, a pigment and a nonaqueous solvent.Type: GrantFiled: March 14, 2007Date of Patent: January 8, 2013Assignee: Kao CorporationInventors: Kazuhiro Ishikawa, Kazuo Kuwahara, Hiromi Nambu, Akito Itoi, Yukihiro Fukuyama, Yuki Wakabayashi
-
Publication number: 20110177143Abstract: Abstract Provided is an oil-based cosmetic preparation which retains a smooth feel. Provided is an oil-based cosmetic preparation containing the following components (A), (B), and (C): (A) a cellulose derivative having a cellulose skeleton in a main chain, in which 67 mol % or more in total hydroxyl groups are substituted with a group —O-M-R, wherein M represents CH2 or a carbonyl group C?O, and R represents a straight or branched alkyl or alkenyl group having 3 to 40 carbon atoms; (B) an ester oil which is liquid at 25° C.; and (C) a hydrocarbon oil which is liquid at 25° C., in which a weight ratio (B)/(C) of the component (B) to the component (C) is 8/1 to 1/4.Type: ApplicationFiled: September 24, 2009Publication date: July 21, 2011Applicant: KAO CorporationInventors: Eiko Tamura, Kouji Ohsaki, Kazuo Kuwahara, Kazuhiro Ishikawa, Kenko Kurita, Yu Saito
-
Publication number: 20110152428Abstract: A high-molecular dispersant suitable for basic inorganic pigments in non-aqueous systems is provided. The high-molecular dispersant contains a copolymer that contains a constitutional unit (a), a constitutional unit (b), and a constitutional unit (c), wherein the constitutional unit (a) accounts for 5 to 45 wt % of the total amount of the constitutional units, the constitutional unit (b) accounts for 50 to 90 wt % of the total amount of the constitutional units, and a ratio by weight of the constitutional unit (c) with respect to the constitutional unit (b) (constitutional unit (c)/constitutional unit (b)) is 0.05 to 0.Type: ApplicationFiled: August 21, 2009Publication date: June 23, 2011Applicant: KAO CORPORATIONInventors: Shuichi Inaya, Kazuo Kuwahara, Takahiro Oshima
-
Publication number: 20100261816Abstract: The present invention relates to [1] a non-aqueous pigment dispersion composition including (A) a pigment, (B) a non-aqueous solvent and (C) a polymer obtained by reacting a copolymer (component (c1)) containing a constitutional unit derived from (c1a) a vinyl monomer containing a reactive functional group and a constitutional unit derived from (c1b) a vinyl monomer containing a nitrogen atom with a poly(alkyl(meth)acrylate) and/or a polystyrene (component (c2)) containing a functional group capable of reacting with the reactive functional group in the component (c1) at one terminal end thereof; and [2] a process for producing a polymer for non-aqueous pigment dispersion, including the steps of (I) reacting the vinyl monomer (c1b) with the vinyl monomer (c1a) to produce a copolymer containing constitutional units derived from the respective vinyl monomers; and (II) reacting the resulting copolymer with the component (c2) to produce a graft copolymer formed by grafting the component (c2) to the copolymer.Type: ApplicationFiled: October 23, 2008Publication date: October 14, 2010Inventors: Kazuo Kuwahara, Akito Itoi, Kazuhiro Ishikawa, Hirokazu Zushi
-
Publication number: 20090258975Abstract: The present invention provides a nonaqueous pigment dispersant containing a copolymer having the following constituent units (a) and (b): (a) a constituent unit derived from a nitrogen atom-containing polymerizable macromonomer having an ethylenic unsaturated double bond at one terminal, and (b) a constituent unit derived from a monomer unit having an ethylenic unsaturated double bond, being copolymerizable with the nitrogen atom-containing polymerizable macromonomer of constituent (a), and a pigment dispersion composition containing the dispersant, a pigment and a nonaqueous solvent.Type: ApplicationFiled: March 14, 2007Publication date: October 15, 2009Applicant: KAO CORPORATIONInventors: Kazuhiro Ishikawa, Kazuo Kuwahara, Hiromi Nambu, Akito Itoi, Yukihiro Fukuyama, Yuki Wakabayashi
-
Publication number: 20090053270Abstract: The cosmetic for eyelashes according to the present invention is capable of simply imparting a good curl-up effect to eyelashes, is free from formation of lumps upon coating, and can exhibit a high moisture resistance and a high curl retention effect during use as well as a beautiful finish. The present invention relates to a cosmetic for eyelashes which includes a film-forming polymer (A) containing constitutional units derived from methacrylic acid and/or a salt thereof (monomer (a)) and a monomer (b) having a solubility of 2 g or less in 100 g of water as measured at 20° C., and having a glass transition temperature (Tg1) of 80° C. or higher.Type: ApplicationFiled: March 17, 2006Publication date: February 26, 2009Applicant: KAO CORPORATIONInventors: Kensuke Yoshida, Sugiko Nakamura, Kazuo Kuwahara
-
Publication number: 20070212312Abstract: The present invention relates to metal oxide complex powder obtained by polymerizing a polymerizable and unsaturated group-containing monomer via a polymerization initiation group introduced onto the surface of at least one metal oxide selected from zinc oxide, titanium oxide and cerium oxide and cosmetics containing the metal oxide complex power.Type: ApplicationFiled: March 30, 2005Publication date: September 13, 2007Applicant: Kao CorporationInventors: Kazuo Kuwahara, Kohji Ohno, Takeshi Fukuda
-
Publication number: 20070202066Abstract: The present invention relates to a cosmetic for eyelash comprising a film-forming polymer (a) having a rate of change in polymer content (?W) of 13% or more, and water, wherein a content of the film-forming polymer (a) is 0.6 to 50% by mass. The cosmetic for eyelash according to the present invention is free from formation of lumps upon use, and imparts a good curl effect to the eyelash.Type: ApplicationFiled: March 18, 2005Publication date: August 30, 2007Applicant: Kao CorporationInventors: Kensuke Yoshida, Shinsuke Okuda, Sugiko Nakamura, Hiromi Nambu, Kazuo Kuwahara
-
Patent number: 6750271Abstract: The present invention provides polymer particles being capable of stably maintaining a hydrophobic protecting agent for skin and/or hair and a method of treating fibers by the polymer particles. It is polymer particles having a volume average particle diameter of 0.001 to 30 &mgr;m, which comprises an organic high-molecular polymer (a) as the wall membrane and a hydrophobic-protecting agent for skin and/or hair (b) as the core material, or chitosan and a polymer of an organic acid having reactive vinyl group and/or a salt thereof as the membrane wall and the protecting agent (b) as the core material; a fiber-treating agent comprising said polymer particles; fiber having said polymer particles present continuously or discontinuously on the surface thereof; or a fiber-treating method which comprises bringing said polymer particles or said fiber-treating agent into contact with fiber.Type: GrantFiled: September 14, 2001Date of Patent: June 15, 2004Assignee: Kao CorporationInventors: Hiromi Nanbu, Kazuo Kuwahara, Shinichi Tokunaga
-
Publication number: 20020055560Abstract: The present invention provides polymer particles being capable of stably maintaining a hydrophobic protecting agent for skin and/or hair and a method of treating fibers by the polymer particles. It is polymer particles having a volume average particle diameter of 0.001 to 30 &mgr;m, which comprises an organic high-molecular polymer (a) as the wall membrane and a hydrophobic -protecting agent for skin and/or hair (b) as the core material, or chitosan and a polymer of an organic acid having reactive vinyl group and/or a salt thereof as the membrane wall and the protecting agent (b) as the core material; a fiber-treating agent comprising said polymer particles; fiber having said polymer particles present continuously or discontinuously on the surface thereof; or a fiber-treating method which comprises bringing said polymer particles or said fiber-treating agent into contact with fiber.Type: ApplicationFiled: September 14, 2001Publication date: May 9, 2002Applicant: Kao CorporationInventors: Hiromi Nanbu, Kazuo Kuwahara, Shinichi Tokunaga
-
Patent number: 6359032Abstract: The present invention provides a polymer emulsion which contains polymer particles having an average particle size of not more than 30 &mgr;m and having core-parts and shell-parts; which is composed of chitosan (a) and a polymer (b) of organic acids having a reactive vinyl group or a salt thereof, as constituent component of shell-part, and composed of a polymer (c) of hydrophobic monomers, as constituent component of core-part. Further, the present invention provides a coloring agent particle comprising a polymer particle in the above-mentioned polymer emulsion; and wherein a coloring material (k) is present in the shell-part and/or core-part. Furthermore, the present invention provides a deodorizing fiber wherein a polymer particle in the above-mentioned polymer emulsion is present on the surface of the fiber.Type: GrantFiled: January 9, 2001Date of Patent: March 19, 2002Assignee: Kao CorporationInventors: Kazuo Kuwahara, Yoshihiro Hasebe, Akira Akaogi, Tsuneo Yasumura, Toshie Takahashi, Osamu Tachizawa, Eiji Terada
-
Publication number: 20010053803Abstract: The present invention provides a polymer emulsion which contains polymer particles having an average particle size of not more than 30 &mgr;m and having core-parts and shell-parts; which is composed of chitosan (a) and a polymer (b) of organic acids having a reactive vinyl group or a salt thereof, as constituent component of shell-part, and composed of a polymer (c) of hydrophobic monomers, as constituent component of core-part.Type: ApplicationFiled: January 9, 2001Publication date: December 20, 2001Applicant: KAO CORPORATIONInventors: Kazuo Kuwahara, Yoshihiro Hasebe, Akira Akaogi, Tsuneo Yasumura, Toshie Takahashi, Osamu Tachizawa, Eiji Terada
-
Patent number: 6252003Abstract: The present invention provides a polymer emulsion which contains polymer particles having an average particle size of not more than 30 &mgr;m and having core-parts and shell-parts; which is composed of chitosan (a) and a polymer (b) of organic acids having a reactive vinyl group or a salt thereof, as constituent component of shell-part, and composed of a polymer (c) of hydrophobic monomers, as constituent component of core-part. Further, the present invention provides a coloring agent particle comprising a polymer particle in the above-mentioned polymer emulsion; and wherein a coloring material (k) is present in the shell-part and/or core-part. Furthermore, the present invention provides a deodorizing fiber wherein a polymer particle in the above-mentioned polymer emulsion is present on the surface of the fiber.Type: GrantFiled: February 3, 2000Date of Patent: June 26, 2001Assignee: Kao CorporationInventors: Kazuo Kuwahara, Yoshihiro Hasebe, Akira Akaogi, Tsuneo Yasumura, Toshie Takahashi, Osamu Tachizawa, Eiji Terada