Patents by Inventor Akihiro Okamoto

Akihiro 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: 20250027232
    Abstract: A colored fiber excellent in heat generation suppression property and fastness is provided. A method for manufacturing a colored fiber, and a fiber product is also provided. The colored fiber includes a fiber and a compound expressed by Formula (1) below.
    Type: Application
    Filed: September 20, 2024
    Publication date: January 23, 2025
    Applicant: KANEKA CORPORATION
    Inventors: Masatoshi Mizumura, Akihiro Okamoto, Takeshi Tanaka
  • Publication number: 20240417916
    Abstract: One or more embodiments of the present invention relate to antibacterial acrylic artificial hair fibers containing chitosan and a nonionic surfactant, in which a content of the chitosan extracted with diluted acetic acid is 0.005% by weight to 0.4% by weight, or the content of the chitosan extracted with concentrated hydrochloric acid is 0.014% by weight to 1.2% by weight, a content of the nonionic surfactant is 0.10% by weight to 0.90% by weight, the nonionic surfactant is one or more selected from the group consisting of a polyoxyethylene sorbitan fatty acid ester, a polyoxyethylene fatty acid monoester, and a polyoxyethylene alkyl ether, and the nonionic surfactant has a hydrophilic-lipophilic balance (HLB) of 13.0 or more.
    Type: Application
    Filed: September 26, 2022
    Publication date: December 19, 2024
    Inventors: Takaaki KOBASHI, Akihiro OKAMOTO, Takeshi TANAKA
  • Publication number: 20240385140
    Abstract: The in vitro diagnostic method for periodontal disease of the present invention includes bringing a sample derived from an oral cavity of a subject into contact with an electrode to perform electrochemical measurement in the presence of a glucogenic amino acid and an electron mediator under an anaerobic environment and providing information for judging that periodontal disease is progressing in the oral cavity of the subject when current generation is detected as a result of the electrochemical measurement. According to the in vitro diagnostic method for periodontal disease of the present invention, it is possible to provide information for judging the progress of periodontal disease by simple operation.
    Type: Application
    Filed: June 21, 2022
    Publication date: November 21, 2024
    Inventors: Akihiro OKAMOTO, Divya NARADASU
  • Patent number: 12146850
    Abstract: A detection apparatus includes: an electrode formation unit that is brought into contact with an object to form an electrode; a detection unit that constitutes an electrode pair with the electrode; a measurement unit that measures a current flowing between the electrode and the detection unit; and a determination unit that determines presence or absence of an abnormality related to bacteria attached to the object according to the current measured by the measurement unit.
    Type: Grant
    Filed: May 12, 2020
    Date of Patent: November 19, 2024
    Assignee: NATIONAL INSTITUTE FOR MATERIALS SCIENCE
    Inventor: Akihiro Okamoto
  • Publication number: 20240368830
    Abstract: An antibacterial polyacrylonitrile-based synthetic fiber suitable for synthetic hair that is superior in an antibacterial property and texture, a method for producing the fiber, and a headdress product containing the fiber are provided. The antibacterial polyacrylonitrile-based synthetic fiber contains a quaternary ammonium salt (B) represented by formula (1): and a non-ionic surfactant (C), that are attached to a polyacrylonitrile-based synthetic fiber (A). The non-ionic surfactant (C) contains a sorbitan fatty acid ester (C1) and polyoxyethylene triglyceride (C2). The amount of the quaternary ammonium salt (B) attached is between 0.05 mass % and 0.3 mass % both inclusive with respect to a total mass of the antibacterial polyacrylonitrile-based synthetic fiber. The amount of the non-ionic surfactant (C) attached is between 0.15 mass % and 0.9 mass % both inclusive with respect to the total mass of the antibacterial polyacrylonitrile-based synthetic fiber.
    Type: Application
    Filed: July 19, 2024
    Publication date: November 7, 2024
    Applicant: KANEKA CORPORATION
    Inventors: Takaaki Kobashi, Akihiro Okamoto, Takeshi Tanaka
  • Publication number: 20240279635
    Abstract: A biofilm activity adjusting method according to the present invention, includes: bringing a medium containing 2-hydroxy-1,4-naphthoquinone and water into contact with a conductor having a bacterium-derived biofilm; and adjusting the biofilm activity by applying, to the conductor, a first electric potential of higher than a lower limit value of an electric potential window and ?0.4 V or lower with respect to a silver/silver chloride electrode reference. The biofilm activity adjusting method according to the present invention makes it possible to obtain an excellent activity adjusting effect on the biofilm.
    Type: Application
    Filed: June 8, 2022
    Publication date: August 22, 2024
    Inventors: Akihiro OKAMOTO, Waheed MIRAN
  • Publication number: 20240268942
    Abstract: A peri-implantitis treatment device (1) according to the present invention includes: an electrode (14) for applying a negative electric potential to a metal portion (7) of a dental implant (8); a potential controller for controlling the electric potential of the electrode (14); and a mouthpiece (2) that holds the electrode (14) and the potential controller and is attached to the dental implant (8). The peri-implantitis treatment device (1) according to the present invention makes it possible to effectively inactivate even bacteria (colonies) that have formed biofilms hard to inactivate by antibiotics in deep periodontal pockets where mechanical cleaning is difficult.
    Type: Application
    Filed: June 8, 2022
    Publication date: August 15, 2024
    Inventors: Akihiro OKAMOTO, Waheed MIRAN
  • Publication number: 20240240363
    Abstract: Described are antibacterial acrylic artificial hair fibers containing chitosan and a nonionic surfactant. The amount of chitosan extracted with diluted acetic acid is 0.005% by weight to 0.4% by weight. The amount of chitosan extracted with concentrated hydrochloric acid is 0.013% by weight to 1.3% by weight. The nonionic surfactant contains a sorbitan fatty acid ester and a polyoxyethylene triglyceride. The amount of the nonionic surfactant is 0.1% by weight to 0.9% by weight, and the percentage of the sorbitan fatty acid ester in the nonionic surfactant is 20% by weight to 90% by weight.
    Type: Application
    Filed: March 29, 2024
    Publication date: July 18, 2024
    Applicant: KANEKA CORPORATION
    Inventors: Takaaki Kobashi, Akihiro Okamoto, Takeshi Tanaka
  • Patent number: 12031239
    Abstract: An acrylic fiber for artificial hair includes an acrylic copolymer obtained by copolymerizing acrylonitrile, vinyl chloride and/or vinylidene chloride, and a sulfonic acid group-containing vinyl monomer; and an organic solvent that can dissolve the acrylic copolymer, where the organic solvent is present in an amount of 0.1 to 3% by mass with respect to the total mass of the acrylic fiber for artificial hair. The acrylic fiber for artificial hair has an average surface roughness of 5900 ?m2 or less in an area of 40 ?m long and 80 ?m wide of the side surface of the fiber.
    Type: Grant
    Filed: January 20, 2021
    Date of Patent: July 9, 2024
    Assignee: KANEKA CORPORATION
    Inventors: Satoru Yoshimura, Masaru Anahara, Hiroki Shinomiya, Masanobu Tamura, Ryohei Noishiki, Aki Kano, Akihiro Okamoto
  • Publication number: 20220214302
    Abstract: A detection apparatus includes: an electrode formation unit that is brought into contact with an object to form an electrode; a detection unit that constitutes an electrode pair with the electrode; a measurement unit that measures a current flowing between the electrode and the detection unit; and a determination unit that determines presence or absence of an abnormality related to bacteria attached to the object according to the current measured by the measurement unit.
    Type: Application
    Filed: May 12, 2020
    Publication date: July 7, 2022
    Inventor: Akihiro OKAMOTO
  • Publication number: 20220154243
    Abstract: [Object] To provide a measurement apparatus capable of easily acquiring microbiota information regarding a specimen, and also provide a measurement method and a program.
    Type: Application
    Filed: March 23, 2020
    Publication date: May 19, 2022
    Inventor: Akihiro OKAMOTO
  • Publication number: 20210318261
    Abstract: A measurement device according to one embodiment of the present invention, comprises: a voltage applying part for applying a voltage between electrodes of a biosensor, the biosensor comprising a solid electrolyte and at least two electrodes, and being configured such that the solid electrolyte and the electrodes are in contact with each other; a detection part for measuring a current value flowing between the electrodes when the voltage is applied; and a computing part for providing information resulting from the microorganisms by comparing the current value with a reference value stored in advance in which a current value and at least one type of factor selected from the group consisting of the presence or absence of the biological particles, a proliferative state of the microorganisms, and the presence or absence of expression of pathogenicity of the microorganisms are defined.
    Type: Application
    Filed: August 6, 2019
    Publication date: October 14, 2021
    Applicant: NATIONAL INSTITUTE FOR MATERIALS SCIENCE
    Inventors: Akihiro OKAMOTO, Wei-Peng LI
  • Publication number: 20210255142
    Abstract: [Object] An object of the present technology to provide a diagnosing apparatus capable of providing, more accurately and simply, information for determining at least one item selected from the group consisting of a type of an illness that has developed in a subject, and a state of progress of the illness that has developed in the subject. Another object of the present technology is to provide an analysis method.
    Type: Application
    Filed: July 5, 2019
    Publication date: August 19, 2021
    Inventors: Akihiro OKAMOTO, Divya NARADASU
  • Patent number: 11058075
    Abstract: Prior art technology has a problem in that when a plant is cultivated for a long period of time on a PVA film having its lower surface positioned in contact with a nutrient fluid, plant roots that have formed penetrate through the film. A plant cultivation system wherein the PVA film has an equilibrium degree of swelling in the range of from 125 to 250% as measured in water at 30° C. and has a loss tangent (tan ?) in the range of from 0.005 to 0.2 as measured in an equilibrium swollen state in water at 30° C., and a method for cultivating a plant by using this plant cultivation system. Plant cultivation can be performed for a long period of time while avoiding infection by bacteria and the like causative of plant diseases. Therefore, the present invention is useful in, e.g., agriculture and the manufacture of pharmaceuticals.
    Type: Grant
    Filed: April 17, 2020
    Date of Patent: July 13, 2021
    Assignee: MEBIOL INC.
    Inventors: Hiroshi Yoshioka, Yuichi Mori, Akihiro Okamoto, Shigeki Miura, Tomoyoshi Mizutani
  • Publication number: 20210140071
    Abstract: An acrylic fiber for artificial hair includes an acrylic copolymer obtained by copolymerizing acrylonitrile, vinyl chloride and/or vinylidene chloride, and a sulfonic acid group-containing vinyl monomer; and an organic solvent that can dissolve the acrylic copolymer, where the organic solvent is present in an amount of 0.1 to 3% by mass with respect to the total mass of the acrylic fiber for artificial hair. The acrylic fiber for artificial hair has an average surface roughness of 5900 ?m2 or less in an area of 40 ?m long and 80 ?m wide of the side surface of the fiber.
    Type: Application
    Filed: January 20, 2021
    Publication date: May 13, 2021
    Applicant: KANEKA CORPORATION
    Inventors: Satoru Yoshimura, Masaru Anahara, Hiroki Shinomiya, Masanobu Tamura, Ryohei Noishiki, Aki Kano, Akihiro Okamoto
  • Patent number: 10989731
    Abstract: To provide a physical quantity sensor having excellent reliability by reducing the influence of a force applied from the outside. Disclosed is a physical quantity sensor, which has a weight or a movable electrode formed on a device substrate, and an outer peripheral section that is disposed to surround the weight or the movable electrode, said weight or movable electrode being displaceable in the rotation direction in a plane. When the weight or the movable electrode is displaced in the rotation direction in the plane, the physical quantity sensor is provided with a rotation space at the outer peripheral section of an end portion of the weight or the movable electrode, said end portion being in the direction viewed from the center position of the weight or the movable electrode.
    Type: Grant
    Filed: August 3, 2016
    Date of Patent: April 27, 2021
    Assignee: HITACHI AUTOMOTIVE SYSTEMS, LTD.
    Inventors: Masatoshi Kanamaru, Daisuke Maeda, Masahide Hayashi, Masashi Yura, Akihiro Okamoto
  • Patent number: 10878688
    Abstract: A monitoring system including: a true image generation unit that generates a true image by subjecting a current image that is a latest captured image to a privacy protection process, a false video storage unit that stores a video or a still image and be capable of extracting one frame of the video or the still image as a false image for determining whether or not a monitoring is being appropriately performed by a monitoring person, an image transmission unit that transmits a monitoring target image generated on a basis of the false image to a terminal device, and a notification determination unit that, upon receipt of information that a notification event has been discovered in the monitoring target image by a user of the terminal device, determines whether or not the monitoring target image notified of the discovery is an image generated on the basis of the false image.
    Type: Grant
    Filed: January 23, 2020
    Date of Patent: December 29, 2020
    Assignee: Asahi Kasei Kabushiki Kaisha
    Inventor: Akihiro Okamoto
  • Patent number: 10878347
    Abstract: A service status management system includes a capturing unit to capture an image of the inside of a facility, an object registering unit register a service object, an object detecting unit to detect the service object registered in the object registering unit in the captured image, a time limit setting unit to set a time limit of a validity period that starts at a time point when the object detecting unit detected the service object for the first time, an image generating unit to generate an image that includes a time limit area capable of displaying a time limit information image and a facility image area displaying a facility image representing the state of the facility, the image being a notification image notifying the status of a service to an external terminal device, and a notification image transmitting unit to transmit the notification image to the terminal device.
    Type: Grant
    Filed: December 14, 2017
    Date of Patent: December 29, 2020
    Assignee: Asahi Kasei Kabushiki Kaisha
    Inventor: Akihiro Okamoto
  • Publication number: 20200260671
    Abstract: Prior art technology has a problem in that when a plant is cultivated for a long period of time on a PVA film having its lower surface positioned in contact with a nutrient fluid, plant roots that have formed penetrate through the film. A plant cultivation system wherein the PVA film has an equilibrium degree of swelling in the range of from 125 to 250% as measured in water at 30° C. and has a loss tangent (tan ?) in the range of from 0.005 to 0.2 as measured in an equilibrium swollen state in water at 30° C., and a method for cultivating a plant by using this plant cultivation system. Plant cultivation can be performed for a long period of time while avoiding infection by bacteria and the like causative of plant diseases. Therefore, the present invention is useful in, e.g., agriculture and the manufacture of pharmaceuticals.
    Type: Application
    Filed: April 17, 2020
    Publication date: August 20, 2020
    Applicant: MEBIOL INC.
    Inventors: Hiroshi YOSHIOKA, Yuichi MORI, Akihiro OKAMOTO, Shigeki MIURA, Tomoyoshi MIZUTANI
  • Patent number: 10698484
    Abstract: An object of the present invention is to provide an input device, a biosensor, a program, a computer-readable medium, and a mode setting method that enable errors in determining whether or not to set a mode of a control target device to be controlled to be reduced. An input device includes: a sensor signal acquisition unit configured to acquire a sensor signal; a waveform comparison unit configured to compare waveforms during two or more periods of the sensor signal; and a mode setting unit configured to, on the basis of a result of comparison by the waveform comparison unit, set a mode of a control target device to be controlled.
    Type: Grant
    Filed: December 6, 2016
    Date of Patent: June 30, 2020
    Assignee: Asahi Kasei Kabushiki Kaisha
    Inventor: Akihiro Okamoto