Patents by Inventor Ayako Okamoto

Ayako Okamoto 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).

  • Publication number: 20240009186
    Abstract: Provided is a solution suitable for oral administration of 7-[4-(4-benzo[b]thiophen-4-yl-piperazin-1-yl)butoxy]-1H-quinolin-2-one(compound (I)) or a salt thereof. A solution for oral administration containing compound (I) or a salt thereof and at least one compound selected from the group consisting of lactic acid, phosphoric acid, glycolic acid, malic acid, tartaric acid, citric acid, succinic acid and acetic acid and having pH 2.5-4.5.
    Type: Application
    Filed: March 27, 2023
    Publication date: January 11, 2024
    Applicant: OTSUKA PHARMACEUTICAL CO., LTD.
    Inventor: Ayako OKAMOTO
  • Publication number: 20210236483
    Abstract: Provided is a solution suitable for oral administration of 7-[4-(4-benzo[b]thiophen 4-yl)butoxy]-1H-quinolin-2-one (compound (I)) or a salt thereof. A solution for oral administration containing compound (I) or a salt thereof, and at least one compound selected from the group consisting of lactic acid, phosphoric, acid, glycolic acid, malic acid, tartaric acid, citric acid, succinic acid and acetic acid and having pH 2.5-4.5.
    Type: Application
    Filed: November 13, 2020
    Publication date: August 5, 2021
    Inventor: Ayako OKAMOTO
  • Publication number: 20200171023
    Abstract: Provided is a solution suitable for oral administration of 7-[4-(4-benzo[b]thiophen-4-yl-piperazin-1-yl)butoxy]-1H-quinolin-2-one (compound (I)) or a salt thereof. A solution for oral administration containing compound (I) or a salt thereof, and at least one compound selected from the group consisting of lactic acid, phosphoric acid, glycolic acid, malic acid, tartaric acid, citric acid, succinic acid and acetic acid and having pH 2.5-4.5.
    Type: Application
    Filed: September 10, 2019
    Publication date: June 4, 2020
    Inventor: Ayako OKAMOTO
  • Publication number: 20180271858
    Abstract: Provided is a solution suitable for oral administration of 7-[4-(4-benzo[b]thiophen-4-yl-piperazin-1-yl)butoxy]-1H-quinolin-2-one (compound (I)) or a salt thereof. A solution for oral administration containing compound (I) or a salt thereof, and at least one compound selected from the group consisting of lactic acid, phosphoric acid, glycolic acid, malic acid, tartaric acid, citric acid, succinic acid and acetic acid and having pH 2.5-4.5.
    Type: Application
    Filed: May 25, 2018
    Publication date: September 27, 2018
    Inventor: Ayako OKAMOTO
  • Publication number: 20170182036
    Abstract: Provided is a solution suitable for oral administration of 7-[4-(4-benzo[b]thiophen-4-yl-piperazin-1-yl)butoxy]-1H-quinolin-2-one (compound (I)) or a salt thereof. A solution for oral administration containing compound (I) or a salt thereof, and at least one compound selected from the group consisting of lactic acid, phosphoric acid, glycolic acid, malic acid, tartaric acid, citric acid, succinic acid and acetic acid and having pH 2.5-4.5.
    Type: Application
    Filed: February 24, 2017
    Publication date: June 29, 2017
    Inventor: Ayako OKAMOTO
  • Patent number: 9625844
    Abstract: Provided is a toner containing toner particles, each of which includes a binder resin containing a polyester as a main component, a colorant, and a wax, in which the binder resin includes a block polymer in which a segment capable of forming a crystalline structure and a segment incapable of forming a crystalline structure are bonded, the toner has a maximum endothermic peak from the binder resin, as determined by differential scanning calorimetry measurement, with a peak temperature in a specific range and with an endothermic quantity in a specific range, and the wax is an ester wax having a functionality of 3 or more.
    Type: Grant
    Filed: April 10, 2014
    Date of Patent: April 18, 2017
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Takaaki Kaya, Tetsuya Kinumatsu, Toshifumi Mori, Ayako Okamoto, Kenji Aoki, Shuntaro Watanabe, Atsushi Tani, Takashige Kasuya
  • Publication number: 20160213665
    Abstract: Provided is a solution for oral administration of 7-[4-(4-benzo[b]thiophen-4-yl-piperazin-1-yl)butoxy]-1H-quinolin-2-one (compound (I)) or a salt thereof, which is superior to preservation stability and is easy to take. A solution for oral administration containing compound (I) or a salt thereof, at least one flavor enhancing/masking agent, and at least one compound selected from the group consisting of lactic acid, phosphoric acid, glycolic acid and malic acid and having pH 2.5-4.5.
    Type: Application
    Filed: January 21, 2016
    Publication date: July 28, 2016
    Inventor: Ayako Okamoto
  • Publication number: 20150355563
    Abstract: In the measurement of an endothermic amount of a toner, (1) an endothermic peak temperature (Tp) derived from the binder resin is 50° C. or higher and 80° C. or lower; (2) a total endothermic amount (?H) derived from the binder resin is 30 [J/g] or more and 125 [J/g] or less based on mass of the binder resin; (3) when an endothermic amount derived from the binder resin from an initiation temperature of an endothermic process to Tp is represented by ?HTp [J/g], ?H and ?HTp satisfy formula (1) below; and (4) when an endothermic amount derived from the binder resin from the initiation temperature of an endothermic process to a temperature 3.0° C. lower than Tp is represented by ?HTp-3 [J/g], ?H and ?HTp-3 satisfy formula (2) below. 0.30??HTp/?H?0.50??(1) 0.00??HTp-3/?H?0.
    Type: Application
    Filed: August 21, 2015
    Publication date: December 10, 2015
    Inventors: Kenji Aoki, Atsushi Tani, Takaaki Kaya, Ayako Okamoto, Takashige Kasuya
  • Patent number: 8980521
    Abstract: The present invention provides a toner excellent in low-temperature fixability and also excellent in heat-resistant storage property, offset resistance, and durability. In a process for producing a toner containing toner particles by emulsion aggregation, each toner particle includes a binder resin of which a main component is a block polymer having a crystal structure, a colorant, and a release agent; the binder resin includes polyester as a main component; the rate of a portion capable of forming a crystal structure to the binder resin is 50 to 80 mass %; a peak temperature Tp of a maximum endothermic peak attributed to the binder resin is 50 to 80° C. in endothermic amount measurement of the toner with a differential scanning calorimeter (DSC); and fused particles are heated at a heating temperature t (° C.) satisfying Tp??15.0?t?Tp??5.0 for at least 0.5 hr.
    Type: Grant
    Filed: November 21, 2011
    Date of Patent: March 17, 2015
    Assignee: Canon Kabushiki Kaisha
    Inventors: Kenji Aoki, Shuntaro Watanabe, Takaaki Kaya, Ayako Okamoto, Tetsuya Kinumatsu, Atsushi Tani, Takashige Kasuya
  • Patent number: 8877417
    Abstract: In a toner formed of toner particles which include a colorant, a wax, and a binder resin containing a crystalline resin (a) primarily composed of a polyester, the crystalline resin has an endothermic peak temperature (Tp) in a range of 50° C. to 80° C., and in a viscoelasticity measurement of the toner, G?(Tp?10) is in a range of 5.0×107 to 5.0×108 Pa, G?(Tp+10) is in a range of 5.0×105 to 5.0×106 Pa, and G?(Tp?20), G?(Tp?10), G?(Tp+10), and G?(Tp+30) satisfy specific relationships.
    Type: Grant
    Filed: July 19, 2011
    Date of Patent: November 4, 2014
    Assignee: Canon Kabushiki Kaisha
    Inventors: Takaaki Kaya, Kenji Aoki, Ayako Okamoto, Atsushi Tani, Takashige Kasuya
  • Publication number: 20140303183
    Abstract: Provided is a solution suitable for oral administration of 7-[4-(4-benzo[b]thiophen-4-yl-piperazin-1-yl)butoxy]-1H-quinolin-2-one (compound (I)) or a salt thereof. A solution for oral administration containing compound (I) or a salt thereof, and at least one compound selected from the group consisting of lactic acid, phosphoric acid, glycolic acid, malic acid, tartaric acid, citric acid, succinic acid and acetic acid and having pH 2.5-4.5.
    Type: Application
    Filed: October 19, 2012
    Publication date: October 9, 2014
    Inventor: Ayako Okamoto
  • Patent number: 8846284
    Abstract: Provided is a toner comprising toner particles, wherein each of the toner particles has a core-shell structure composed of a core and a shell phase formed on the core, the shell phase contains a resin (B), and the core contains a binder resin (A), a colorant and a wax, wherein the toner particles contain the resin (B) in a specific amount with respect to the core, and wherein the solubility parameter (SP value) of the binder resin (A) is denoted by SP(A), the SP value of the resin (B) is denoted by SP(B), the SP value of a repeating unit with the smallest SP value from among repeating units constituting the resin (B) is denoted by SP(C), and the SP value of the wax is denoted by SP(W), each of the SP(A), SP(B), SP(C) and SP(W) satisfy specific relationships.
    Type: Grant
    Filed: January 14, 2013
    Date of Patent: September 30, 2014
    Assignee: Canon Kabushiki Kaisha
    Inventors: Tetsuya Kinumatsu, Atsushi Tani, Kenji Aoki, Shuntaro Watanabe, Takaaki Kaya, Ayako Okamoto, Yoshihiro Nakagawa, Toshifumi Mori, Takashige Kasuya
  • Publication number: 20140220486
    Abstract: Provided is a toner containing toner particles, each of which includes a binder resin containing a polyester as a main component, a colorant, and a wax, in which the binder resin includes a block polymer in which a segment capable of forming a crystalline structure and a segment incapable of forming a crystalline structure are bonded, the toner has a maximum endothermic peak from the binder resin, as determined by differential scanning calorimetry measurement, with a peak temperature in a specific range and with an endothermic quantity in a specific range, and the wax is an ester wax having a functionality of 3 or more.
    Type: Application
    Filed: April 10, 2014
    Publication date: August 7, 2014
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Takaaki Kaya, Tetsuya Kinumatsu, Toshifumi Mori, Ayako Okamoto, Kenji Aoki, Shuntaro Watanabe, Atsushi Tani, Takashige Kasuya
  • Patent number: 8785101
    Abstract: Provided is a toner containing toner particles, each of which includes a binder resin containing a polyester as a main component, a colorant, and a wax, in which the binder resin includes a block polymer in which a segment capable of forming a crystalline structure and a segment incapable of forming a crystalline structure are bonded, the toner has a maximum endothermic peak from the binder resin, as determined by differential scanning calorimetry measurement, with a peak temperature in a specific range and with an endothermic quantity in a specific range, and the wax is an ester wax having a functionality of 3 or more.
    Type: Grant
    Filed: January 14, 2013
    Date of Patent: July 22, 2014
    Assignee: Canon Kabushiki Kaisha
    Inventors: Takaaki Kaya, Tetsuya Kinumatsu, Toshifumi Mori, Ayako Okamoto, Kenji Aoki, Shuntaro Watanabe, Atsushi Tani, Takashige Kasuya
  • Patent number: 8741519
    Abstract: Provided is a toner having an excellent low-temperature fixability and hot offset resistance, a broad fixing temperature latitude in low-temperature areas to high-temperature areas, and a high heat-resistant storage stability. The toner includes toner particles having a core-shell structure in which a shell phase containing a resin A is formed on a core containing a binder resin, a colorant and a wax. In measurement of resin A by a differential scanning calorimetry (DSC), the peak temperature TpA (° C.) of a maximum endothermic peak in the first temperature rise is at least 55° C. but not more than 80° C. In measurement of a viscoelasticity of resin A, the loss elastic modulus at TpA?10 (° C.) is at least 1×107 Pa but not more than 1×108 Pa. In measurement of the viscoelasticity of resin A, the loss elastic moduli at TpA (° C.), TpA+10 (° C.) and TpA+25 (° C.) satisfy specific conditions.
    Type: Grant
    Filed: January 14, 2013
    Date of Patent: June 3, 2014
    Assignee: Canon Kabushiki Kaisha
    Inventors: Shuntaro Watanabe, Kenji Aoki, Tetsuya Kinumatsu, Takaaki Kaya, Atsushi Tani, Ayako Okamoto, Toshifumi Mori, Yoshihiro Nakagawa, Takashige Kasuya
  • Patent number: 8642237
    Abstract: In differential scanning calorimetry of a toner, regarding a binder resin in the toner, (i) the peak temperature T10 of a maximum endothermic peak (temperature raising rate 10.0° C./min; P10) is 50° C. to 80° C. and the half-width W10 is 2.0° C. to 3.5° C. and (ii) W1, W10, and W20 satisfy that W1/W10 is 0.20 to 1.00 and W20/W10 is 1.00 to 1.50, where the half-width of a maximum endothermic peak (temperature raising rate of 1.0° C./min; P1) is represented by W1 (° C.) and the half-width of a maximum endothermic peak (temperature raising rate of 20.0° C./min; P20) is represented by W20 (° C.).
    Type: Grant
    Filed: July 20, 2011
    Date of Patent: February 4, 2014
    Assignee: Canon Kabushiki Kaisha
    Inventors: Atsushi Tani, Tetsuya Kinumatsu, Ayako Okamoto, Kenji Aoki, Shuntaro Watanabe, Takaaki Kaya, Takashige Kasuya
  • Patent number: 8603712
    Abstract: Provided is a toner comprising a toner particle having a core-shell structure in which a shell phase containing a resin A is formed on a core that contains a binder resin, a colorant and a wax, wherein the resin A is a vinyl resin prepared by copolymerizing a vinyl monomer X that has an organopolysiloxane structure and a vinyl monomer Y that has a polyester segment capable of forming a crystalline structure; the content of the vinyl monomer X in a total monomer used for the copolymerization is in a particular range; the toner particle contains resin A in a particular proportion; and the binder resin contains a crystalline resin.
    Type: Grant
    Filed: January 14, 2013
    Date of Patent: December 10, 2013
    Assignee: Canon Kabushiki Kaisha
    Inventors: Kenji Aoki, Shuntaro Watanabe, Takaaki Kaya, Tetsuya Kinumatsu, Ayako Okamoto, Toshifumi Mori, Yoshihiro Nakagawa, Atsushi Tani, Takashige Kasuya
  • Publication number: 20130266897
    Abstract: The present invention provides a toner excellent in low-temperature fixability and also excellent in heat-resistant storage property, offset resistance, and durability. In a process for producing a toner containing toner particles by emulsion aggregation, each toner particle includes a binder resin of which a main component is a block polymer having a crystal structure, a colorant, and a release agent; the binder resin includes polyester as a main component; the rate of a portion capable of forming a crystal structure to the binder resin is 50 to 80 mass %; a peak temperature Tp of a maximum endothermic peak attributed to the binder resin is 50 to 80° C. in endothermic amount measurement of the toner with a differential scanning calorimeter (DSC); and fused particles are heated at a heating temperature t (° C.) satisfying Tp??15.0?t?Tp??5.0 for at least 0.5 hr.
    Type: Application
    Filed: November 21, 2011
    Publication date: October 10, 2013
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Kenji Aoki, Shuntaro Watanabe, Takaaki Kaya, Ayako Okamoto, Tetsuya Kinumatsu, Atsushi Tani, Takashige Kasuya
  • Publication number: 20130130169
    Abstract: In the measurement of an endothermic amount of a toner, (1) an endothermic peak temperature (Tp) derived from the binder resin is 50° C. or higher and 80° C. or lower; (2) a total endothermic amount (?H) derived from the binder resin is 30 [J/g] or more and 125 [J/g] or less based on mass of the binder resin; (3) when an endothermic amount derived from the binder resin from an initiation temperature of an endothermic process to Tp is represented by ?HTp [J/g], ?H and ?HTp satisfy formula (1) below; and (4) when an endothermic amount derived from the binder resin from the initiation temperature of an endothermic process to a temperature 3.0° C. lower than Tp is represented by ?HTp-3 [J/g], ?H and ?HTp-3 satisfy formula (2) below. 0.30??HTp/?H?0.50??(1) 0.00??HTp-3/?H?0.
    Type: Application
    Filed: July 14, 2011
    Publication date: May 23, 2013
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Kenji Aoki, Atsushi Tani, Takaaki Kaya, Ayako Okamoto, Takashige Kasuya
  • Publication number: 20120021349
    Abstract: In differential scanning calorimetry of a toner, regarding a binder resin in the toner, (i) the peak temperature T10 of a maximum endothermic peak (temperature raising rate 10.0° C./min; P10) is 50° C. to 80° C. and the half-width W10 is 2.0° C. to 3.5° C. and (ii) W1, W10, and W20 satisfy that W1/W10 is 0.20 to 1.00 and W20/W10 is 1.00 to 1.50, where the half-width of a maximum endothermic peak (temperature raising rate of 1.0° C./min; P1) is represented by W1 (° C.) and the half-width of a maximum endothermic peak (temperature raising rate of 20.0° C./min; P20) is represented by W20 (° C.).
    Type: Application
    Filed: July 20, 2011
    Publication date: January 26, 2012
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Atsushi Tani, Tetsuya Kinumatsu, Ayako Okamoto, Kenji Aoki, Shuntaro Watanabe, Takaaki Kaya, Takashige Kasuya