Patents by Inventor Takaya Sakai

Takaya Sakai 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: 11975086
    Abstract: A method for removing keratotic plugs capable of sufficiently exhibiting an excellent keratotic plug-removing effect without a burden, such as pam and of irritation, on the skin. The method comprises applying a composition comprising (X) one or more selected from (X1) 2-amino-2-hydroxymethyl-1,3-propanediol, (X2) 2-amino-2-methyl-1-propanol, and (X3) 2-amino-2-methyl-1,3-propanediol and a nonionic surfactant to the skin.
    Type: Grant
    Filed: June 29, 2022
    Date of Patent: May 7, 2024
    Assignee: KAO CORPORATION
    Inventors: Toshiaki Ozawa, Takaya Sakai, Mariko Miyoshi, Daisuke Furukawa, Aya Shirai
  • Publication number: 20220347072
    Abstract: Provided is a method for removing keratotic plugs capable of sufficiently exhibiting an excellent keratotic plug-removing effect without a burden, such as pain and of irritation, on the skin. The present invention relates to a method for removing keratotic plugs comprising using a composition comprising (X) one or more selected from the group consisting of (X1) 2-amino-2-hydroxymethyl-1,3-propanediol (X2), 2-amino-2-methyl-1-propanol, and (X3) 2-amino-2-methyl-1,3-propanediol.
    Type: Application
    Filed: June 29, 2022
    Publication date: November 3, 2022
    Applicant: KAO CORPORATION
    Inventors: Toshiaki OZAWA, Takaya SAKAI, Mariko MIYOSHI, Daisuke FURUKAWA, Aya SHIRAI
  • Patent number: 11406576
    Abstract: Provided is a method for removing keratotic plugs capable of sufficiently exhibiting an excellent keratotic plug-removing effect without a burden, such as pain and of irritation, on the skin. The present invention relates to a method for removing keratotic plugs comprising using a composition comprising (X) one or more selected from the group consisting of (X1) 2-amino-2-hydroxymethyl-1,3-propanediol (X2), 2-amino-2-methyl-1-propanol, and (X3) 2-amino-2-methyl-1,3-propanediol.
    Type: Grant
    Filed: April 9, 2018
    Date of Patent: August 9, 2022
    Assignee: KAO CORPORATION
    Inventors: Toshiaki Ozawa, Takaya Sakai, Mariko Miyoshi, Daisuke Furukawa, Aya Shirai
  • Patent number: 11046916
    Abstract: Provided is a surfactant composition which includes high concentrations of a surfactant, has fluidity in a wide concentration range, and does not become clouded when diluted with hard water. This surfactant composition includes component A, component B, and component C described below, wherein a total content of the component A and the component B is 35 to 80% by mass and wherein the component A is at least one sulfonate compound selected from the group consisting of a hydroxyalkane sulfonate and an olefin sulfonate, the component B is a polyoxyalkylene alkyl ether, and the component C is water.
    Type: Grant
    Filed: May 30, 2017
    Date of Patent: June 29, 2021
    Assignee: KAO CORPORATION
    Inventors: Yukiko Tabuchi, Takaya Sakai, Makiko Shigehisa, Hiroko Endo
  • Publication number: 20210100727
    Abstract: Provided is a method for removing keratotic plugs capable of sufficiently exhibiting an excellent keratotic plug-removing effect without a burden, such as pain and of irritation, on the skin. The present invention relates to a method for removing keratotic plugs comprising using a composition comprising (X) one or more selected from the group consisting of (X1) 2-amino-2-hydroxymethyl-1,3-propanediol (X2), 2-amino-2-methyl-1-propanol, and (X3) 2-amino-2-methyl-1,3-propanediol.
    Type: Application
    Filed: April 9, 2018
    Publication date: April 8, 2021
    Applicant: KAO CORPORATION
    Inventors: Toshiaki OZAWA, Takaya SAKAI, Mariko MIYOSHI, Daisuke FURUKAWA, Aya SHIRAI
  • Patent number: 10941369
    Abstract: The present invention provides a surfactant composition which includes a surfactant at a high concentration, while having fluidity over a wide concentration range. A surfactant composition according to the present invention contains the components A, B, C and D described below, and is configured such that: the total content of the components A, B and C is from 30% by mass to 80% by mass (inclusive); the mass ratio of the total content of the components A and B to the content of the component C, namely (A+B)/C is from 20/80 to 80/20; and the mass ratio of the content of the component A to the content of the component B, namely A/B is from 98/2 to 45/55. A: an internal olefin sulfonic acid and/or a salt thereof; B: an anionic surfactant other than the component A; C: a nonionic surfactant; D: water.
    Type: Grant
    Filed: August 7, 2017
    Date of Patent: March 9, 2021
    Assignee: KAO CORPORATION
    Inventors: Yukiko Tabuchi, Takaya Sakai, Hiroko Endo
  • Publication number: 20200231902
    Abstract: Provided is a surfactant composition which includes high concentrations of a surfactant, has fluidity in a wide concentration range, and does not become clouded when diluted with hard water. This surfactant composition includes component A, component B, and component C described below, wherein a total content of the component A and the component B is 35 to 80% by mass and wherein the component A is at least one sulfonate compound selected from the group consisting of a hydroxyalkane sulfonate and an olefin sulfonate, the component B is a polyoxyalkylene alkyl ether, and the component C is water.
    Type: Application
    Filed: May 30, 2017
    Publication date: July 23, 2020
    Applicant: KAO CORPORATION
    Inventors: Yukiko TABUCHI, Takaya SAKAI, Makiko SHIGEHISA, Hiroko ENDO
  • Patent number: 10672565
    Abstract: An aluminum electrolytic capacitor includes: an exterior case of a bottomed cylindrical shape for accommodating a capacitor element in which an anode foil and a cathode foil are wound in an overlapping manner with a separator interposed therebetween; and an elastic sealing member for sealing an opening of the exterior case, wherein the exterior case is formed with, on an outer circumferential surface, a plurality of tapered concave portions whose depth in the radial direction becomes shallow from the bottomed cylindrical bottom toward the opening side, whereby a tapered raised portion, which is raised toward the center side in the radial direction, is formed on an inner circumferential surface located on the back surface of the concave portion, and the capacitor element is abutted and supported by the raised portion.
    Type: Grant
    Filed: April 11, 2017
    Date of Patent: June 2, 2020
    Assignee: NICHICON CORPORATION
    Inventors: Takaya Sakai, Mitsuru Yoneda, Kazuhiro Yasukawa, Yuichi Kanayama, Shingo Sakata
  • Patent number: 10586656
    Abstract: A pressure valve to be arranged in a seal member sealing a casing in which a capacitor element is housed, the pressure valve having a base end positioned within the case and a tip positioned outside the case. The pressure valve includes a tapered portion having a tapered shape. At the top portion of the tapered portion, there is formed a slit able to undergo a state change between a close-state and an open-state by elastic deformation. When the casing internal pressure is less than a certain value, the slit maintains the close-state. When the casing internal pressure has reached the certain value, the slit undergoes a state change to the open-state, whereby the inside and outside of the case communicate with each other and the internal pressure is released from within the case.
    Type: Grant
    Filed: October 7, 2016
    Date of Patent: March 10, 2020
    Assignee: NICHICON CORPORATION
    Inventors: Mitsuru Yoneda, Takaya Sakai, Kenta Kawanishi, Kazuya Yamanaka
  • Publication number: 20200054539
    Abstract: Provided is a method for removing keratotic plugs capable of sufficiently exhibiting an excellent keratotic plug-removing effect without a burden, such as pain and feeling of irritation, on the skin. The present invention relates to a method for removing keratotic plugs comprising using a composition comprising 0.8 mass % or more and 20 mass % or less of (A) arginine and having a pH of 8.0 or more and 12.5 or less at 25° C.
    Type: Application
    Filed: April 9, 2018
    Publication date: February 20, 2020
    Applicant: KAO CORPORATION
    Inventors: Toshiaki OZAWA, Takaya SAKAI, Mariko MIYOSHI, Daisuke FURUKAWA, Aya SHIRAI
  • Publication number: 20190169536
    Abstract: The present invention provides a surfactant composition which includes a surfactant at a high concentration, while having fluidity over a wide concentration range. A surfactant composition according to the present invention contains the components A, B, C and D described below, and is configured such that: the total content of the components A, B and C is from 30% by mass to 80% by mass (inclusive); the mass ratio of the total content of the components A and B to the content of the component C, namely (A+B)/C is from 20/80 to 80/20; and the mass ratio of the content of the component A to the content of the component B, namely A/B is from 98/2 to 45/55.
    Type: Application
    Filed: August 7, 2017
    Publication date: June 6, 2019
    Applicant: KAO CORPORATION
    Inventors: Yukiko TABUCHI, Takaya SAKAI, Hiroko ENDO
  • Publication number: 20190131078
    Abstract: An aluminum electrolytic capacitor includes: an exterior case of a bottomed cylindrical shape for accommodating a capacitor element in which an anode foil and a cathode foil are wound in an overlapping manner with a separator interposed therebetween; and an elastic sealing member for sealing an opening of the exterior case, wherein the exterior case is formed with, on an outer circumferential surface, a plurality of tapered concave portions whose depth in the radial direction becomes shallow from the bottomed cylindrical bottom toward the opening side, whereby a tapered raised portion, which is raised toward the center side in the radial direction, is formed on an inner circumferential surface located on the back surface of the concave portion, and the capacitor element is abutted and supported by the raised portion.
    Type: Application
    Filed: April 11, 2017
    Publication date: May 2, 2019
    Inventors: Takaya SAKAI, Mitsuru YONEDA, Kazuhiro YASUKAWA, Yuichi KANAYAMA, Shingo SAKATA
  • Publication number: 20180323013
    Abstract: A pressure valve to be arranged in a seal member sealing a casing in which a capacitor element is housed, the pressure valve having a base end positioned within the case and a tip positioned outside the case. The pressure valve includes a tapered portion having a tapered shape. At the top portion of the tapered portion, there is formed a slit able to undergo a state change between a close-state and an open-state by elastic deformation. When the casing internal pressure is less than a certain value, the slit maintains the close-state. When the casing internal pressure has reached the certain value, the slit undergoes a state change to the open-state, whereby the inside and outside of the case communicate with each other and the internal pressure is released from within the case.
    Type: Application
    Filed: October 7, 2016
    Publication date: November 8, 2018
    Inventors: Mitsuru YONEDA, Takaya SAKAI, Kenta KAWANISHI, Kazuya YAMANAKA
  • Patent number: 8778865
    Abstract: The present invention provides the softener composition containing the specific quaternary ammonium salts (I) and (II) each having a bis(polyalkoxyalkanol) structure, represented by the formulae (I) and (II) respectively, at a weight ratio of (I):(II) of 50.1:49.9 to 99.99:0.01.
    Type: Grant
    Filed: March 8, 2011
    Date of Patent: July 15, 2014
    Assignee: Kao Corporation
    Inventors: Risa Ikoshi, Makoto Kubo, Takaya Sakai
  • Patent number: 8497235
    Abstract: The present invention provides a softener composition containing a specific bis(polyalkoxyalkanol) type quaternary ammonium salt represented by formula (I): [wherein R1 and R2 may be the same as or different from each other and represent a hydrocarbon group having 11 to 23 carbon atoms, R3 and R4 may be the same as or different from each other and represent a hydrocarbon group having 1 to 4 carbon atoms which may have a hydroxyl group, k and l may be the same as or different from each other and represent an integer of 5 to 10 and X? represents an anion.
    Type: Grant
    Filed: December 9, 2009
    Date of Patent: July 30, 2013
    Assignee: Kao Corporation
    Inventors: Risa Ikoshi, Takaya Sakai, Makoto Kubo
  • Publication number: 20120329702
    Abstract: The present invention provides the softener composition containing the specific quaternary ammonium salts (I) and (II) each having a bis(polyalkoxyalkanol) structure, represented by the formulae (I) and (II) respectively, at a weight ratio of (I):(II) of 50.1:49.9 to 99.99:0.01.
    Type: Application
    Filed: March 8, 2011
    Publication date: December 27, 2012
    Applicant: KAO CORPORATION
    Inventors: Risa Ikoshi, Makoto Kubo, Takaya Sakai
  • Publication number: 20110263476
    Abstract: The present invention provides a softener composition containing a specific bis(polyalkoxyalkanol) type quaternary ammonium salt represented by formula (I): [wherein R1 and R2 may be the same as or different from each other and represent a hydrocarbon group having 11 to 23 carbon atoms, R3 and R4 may be the same as or different from each other and represent a hydrocarbon group having 1 to 4 carbon atoms which may have a hydroxyl group, k and l may be the same as or different from each other and represent an integer of 5 to 10 and X? represents an anion.
    Type: Application
    Filed: December 9, 2009
    Publication date: October 27, 2011
    Applicant: KAO CORPORATION
    Inventors: Risa Ikoshi, Takaya Sakai, Makoto Kubo
  • Patent number: 6958316
    Abstract: The present invention provides a thickener which is superior in compounding stability and has high thickening action and a surfactant composition containing the thickener. The present invention relates to a thickener comprising a fatty acid amide ether compound (1) and to a surfactant composition comprising this thickener and at least one surfactant. Namely, the present invention relates to a method of increasing the viscosity of a surfactant by using this thickener. wherein R1 represents a straight-chain or branched alkyl or alkenyl group which has 5 to 21 carbon atoms and may be substituted with at least one hydroxyl group, R2 represents a straight-chain or branched alkyl group having 1 to 12 carbon atoms and R3 represents an alkylene group having 2 to 12 carbon atoms.
    Type: Grant
    Filed: October 22, 2002
    Date of Patent: October 25, 2005
    Assignee: Kao Corporation
    Inventors: Makoto Kubo, Kazuhiro Iitaka, Takaya Sakai, Yoshifumi Nishimoto, Yohei Kaneko
  • Patent number: 6946430
    Abstract: To provide a surfactant composition with an excellent foamability and thickening performance and further an excellent storage stability, it comprises the following components (a) and (b): (a) at least one anionic surfactant selected from (1) sulfonate-type anionic surfactants having amide group or ester group, (2) carboxylate-type anionic surfactants and (3) phosphate-type anionic surfactants and (b) a compound expressed by the formula (I): where R1CO— is an acyl group having 6 to 24 carbon atoms, R2 is an alkyl group having 1 to 3 carbon atoms and R3 is an alkylene group having 1 to 6 carbon atoms or an alkenylene group having 2 to 6 carbon atoms.
    Type: Grant
    Filed: March 26, 2002
    Date of Patent: September 20, 2005
    Assignee: Kao Corporation
    Inventors: Takaya Sakai, Makoto Kubo, Makio Tetsu, Youhei Kaneko
  • Publication number: 20040266657
    Abstract: The present invention provides a thickener which is superior in compounding stability and has high thickening action and a surfactant composition containing the thickener. The present invention relates to a thickener comprising a fatty acid amide ether compound (1) and to a surfactant composition comprising this thickener and at least one surfactant. Namely, the present invention relates to a method of increasing the viscosity of a surfactant by using this thickener.
    Type: Application
    Filed: August 25, 2004
    Publication date: December 30, 2004
    Inventors: Makoto Kubo, Kazuhiro Iitaka, Takaya Sakai, Yoshifumi Nishimoto, Yohei Kaneko