Patents by Inventor Yumi KAWAJIRI

Yumi KAWAJIRI 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: 20210329915
    Abstract: Provided is an absorption promotor for causing a flying-insect pest repellent fragrance-containing composition with a high repellent effect to be rapidly absorbed into an elastomer molded body. The absorption promotor for causing a flying-insect pest repellent fragrance-containing composition into an elastomer molded body having a hardness of 60 degrees or less includes d-limonene and/or 1,8-cineole as an active ingredient. The absorption promotor is blended preferably in a range of 2.0 to 65% by mass and more preferably 10 to 45% by mass in the flying-insect pest repellent fragrance-containing composition.
    Type: Application
    Filed: September 18, 2019
    Publication date: October 28, 2021
    Inventors: Ryoko UKITA, Tomomi IWAMOTO, Taiji ONO, Yumi KAWAJIRI, Koji NAKAYAMA
  • Publication number: 20210315209
    Abstract: An outdoor aerosol agent for insect pest control useful for insect pests with reduced sensitivity to pyrethroid-based insecticidal components, particularly mosquitoes, having excellent adhesion to surfaces to be treated and effectiveness of formation of a barrier space without causing issues with VOC regulations. The aerosol agent is obtained by filling a pressure-resistant container with an aerosol stock solution and a propellant, wherein VOC content in the aerosol stock solution is 30% by mass or less, the aerosol stock solution including: (a) 0.01 to 3.0% by mass of a room-temperature volatile pyrethroid-based insecticidal component that has a vapor pressure of 2×10?4 to 1×10?2 mmHg at 30° C.; (b) 0.5 to 10% by mass of a glycol ether compound having a boiling point of 160 to 320° C.; (c) 0.2 to 5.0% by mass of a nonionic surfactant and/or an anionic surfactant; and (d) the remainder % by mass being water.
    Type: Application
    Filed: August 6, 2019
    Publication date: October 14, 2021
    Inventors: Yuya HARADA, Yoko KOBAYASHI, Yumi KAWAJIRI, Koji NAKAYAMA
  • Publication number: 20210051937
    Abstract: Provided are a mosquito control aerosol which can produce a good control effect on mosquitoes over a long period of time while reducing influence on humans and pets, and a mosquito control method using the mosquito control aerosol. The mosquito control aerosol includes: a pressure-resistant container equipped with a metering spray valve, that contains a liquid aerosol-forming material including an insect pest control component and an organic solvent, and a propellant; and a spray button having a spray outlet connected to the metering spray valve. The volume of the liquid aerosol-forming material sprayed when the spray button is pressed down once is adjusted to 0.1 to 0.4 mL, and the spray force thereof as measured at a distance of 20 cm from the spray outlet at 25° C. is adjusted to 0.3 to 10.0 g·f.
    Type: Application
    Filed: November 3, 2020
    Publication date: February 25, 2021
    Inventors: Ayako NOTOMI, Hiroko YOSHINAKA, Yoko KOBAYASHI, Osamu TANAKA, Yumi KAWAJIRI, Koji NAKAYAMA
  • Patent number: 10542740
    Abstract: Provided is a chemical agent vaporizing/discharging device which can efficiently vaporize and discharge a chemical agent from a chemical agent retainer, and sufficiently diffuse the chemical agent, even when the device is used in a relatively large space or outdoors. A chemical agent vaporizing/discharging device 100 comprises: a chemical agent retainer 50 having a chemical agent retention layer 10 including interstices 11 for allowing retention of a volatile chemical agent, and a gas permeable layer 20 including voids 21 having a size larger than a size of the interstices 11; and a rotational drive part 60 for driving the chemical agent retainer 50. A shape and a size of the chemical agent retainer 50, and a rotational speed of the rotational drive part 60, are set so that a centrifugal effect of 10 to 150 (G) is obtained during rotation of the chemical agent retainer 50.
    Type: Grant
    Filed: December 14, 2015
    Date of Patent: January 28, 2020
    Assignee: DAINIHON JOCHUGIKU Co., Ltd.
    Inventors: Seiichi Kashima, Ryoko Ukita, Yumi Kawajiri, Koji Nakayama
  • Patent number: 10349647
    Abstract: A three-dimensional structure is provided which is obtained by molding a volatile chemical-containing resin composition into a plate form, wherein the three-dimensional structure includes through-holes penetrating therethrough from the front to the back thereof, the through-holes have peripheries having a shape selected from polygonal, circular, circular arc and spiral shapes when the three-dimensional structure is viewed from the front, and the peripheries of the through-holes are formed on a single plane or on a smoothly curved imaginary surface.
    Type: Grant
    Filed: October 24, 2016
    Date of Patent: July 16, 2019
    Assignee: DAINIHON JOCHUGIKU CO., LTD.
    Inventors: Seiichi Kashima, Tomohiro Kakinoki, Yumi Kawajiri, Koji Nakayama, Masuo Matsumoto
  • Publication number: 20180110211
    Abstract: A three-dimensional structure is provided which is obtained by molding a volatile chemical-containing resin composition into a plate form, wherein the three-dimensional structure includes through-holes penetrating therethrough from the front to the back thereof, the through-holes have peripheries having a shape selected from polygonal, circular, circular arc and spiral shapes when the three-dimensional structure is viewed from the front, and the peripheries of the through-holes are formed on a single plane or on a smoothly curved imaginary surface.
    Type: Application
    Filed: October 24, 2016
    Publication date: April 26, 2018
    Applicant: DAINIHON JOCHUGIKU CO., LTD.
    Inventors: Seiichi KASHIMA, Tomohiro KAKINOKI, Yumi KAWAJIRI, Koji NAKAYAMA, Masuo MATSUMOTO
  • Publication number: 20180064101
    Abstract: Provided is a water-based insecticidal composition to be vaporized and diffused by being heated for controlling mosquitoes having reduced susceptibility to a pyrethroid insecticidal component. The composition contains 0.1-3.0 mass % of the pyrethroid insecticidal component, 10-70 mass % of at least one glycol ether compound having a boiling point of 150-300° C. as a susceptibility reduction-countering auxiliary agent for the pyrethroid insecticidal component, and water.
    Type: Application
    Filed: February 29, 2016
    Publication date: March 8, 2018
    Inventors: Hiroki SUGIOKA, Tomoyuki HIKITSUCHI, Taiji ONO, Tomoe WATANABE, Yumi KAWAJIRI, Hiroshi ASAI, Koji NAKAYAMA
  • Publication number: 20170325442
    Abstract: Provided is a chemical agent vaporizing/discharging device which can efficiently vaporize and discharge a chemical agent from a chemical agent retainer, and sufficiently diffuse the chemical agent, even when the device is used in a relatively large space or outdoors. A chemical agent vaporizing/discharging device 100 comprises: a chemical agent retainer 50 having a chemical agent retention layer 10 including interstices 11 for allowing retention of a volatile chemical agent, and a gas permeable layer 20 including voids 21 having a size larger than a size of the interstices 11; and a rotational drive part 60 for driving the chemical agent retainer 50. A shape and a size of the chemical agent retainer 50, and a rotational speed of the rotational drive part 60, are set so that a centrifugal effect of 10 to 150 (G) is obtained during rotation of the chemical agent retainer 50.
    Type: Application
    Filed: December 14, 2015
    Publication date: November 16, 2017
    Inventors: Seiichi KASHIMA, Ryoko UKITA, Yumi KAWAJIRI, Koji NAKAYAMA
  • Publication number: 20170071186
    Abstract: Provided are a mosquito control aerosol which can produce a good control effect on mosquitoes over a long period of time while reducing influence on humans and pets, and a mosquito control method using the mosquito control aerosol. The mosquito control aerosol includes: a pressure-resistant container equipped with a metering spray valve, that contains a liquid aerosol-forming material including an insect pest control component and an organic solvent, and a propellant; and a spray button having a spray outlet connected to the metering spray valve. The volume of the liquid aerosol-forming material sprayed when the spray button is pressed down once is adjusted to 0.1 to 0.4 mL, and the spray force thereof as measured at a distance of 20 cm from the spray outlet at 25° C. is adjusted to 0.3 to 10.0 g·f.
    Type: Application
    Filed: February 24, 2015
    Publication date: March 16, 2017
    Inventors: Ayako NOTOMI, Hiroko YOSHINAKA, Yoko KOBAYASHI, Osamu TANAKA, Yumi KAWAJIRI, Koji NAKAYAMA