Patents by Inventor Kazuhiko Katayama

Kazuhiko Katayama 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: 20240390404
    Abstract: An object of the present invention is to provide an anti-human norovirus agent which can inhibit infection with and proliferation of human norovirus. The present inventors have found that the object can be attained through provision of an anti-human norovirus agent comprising a fucose analog having an inhibitory action on glycosylation by fucosyltransferase (FUT) as an active ingredient. Examples of the active ingredient include a fucose analog represented by formula (III) or (IV) or a salt thereof: [In the formulas, each of formula (III) and formula (IV) represents an ?-anomer or a ?-anomer; each of R1, R3, and R4 is —OH or —OAc; R2 is a halogen atom, —OH, or —OAc; and R5 is —CH3, —C?CH, —C?CCH3, or —CH2C?CH.
    Type: Application
    Filed: August 5, 2024
    Publication date: November 28, 2024
    Applicants: KEIO UNIVERSITY, THE KITASATO INSTITUTE
    Inventors: Kazuhiko KATAYAMA, Akira FUJIMOTO, Kei HAGA, Reiko TODAKA, Toshiro SATO
  • Publication number: 20240316181
    Abstract: An object of the present invention is to establish means for providing a component vaccine which can selectively or intensively induce cell-mediated immunity mainly attributable to MHC class I, and humoral immunity mainly attributable to MHC class II. The inventors have found that the object can be attained by providing a component vaccine containing, as an active ingredient, a trimer and/or a hexamer of a molecular needle carrying a peptide binding to MHC class I and/or a peptide binding to MHC class II. The inventors have also found an information acquisition method that can determine the MHC class or the like of a test peptide or a similar substance by detecting a change in secretion of a physiologically active substance such as a cytokine in a test animal which has been infected with a target microorganism.
    Type: Application
    Filed: January 7, 2022
    Publication date: September 26, 2024
    Applicants: TOKYO INSTITUTE OF TECHNOLOGY, THE KITASATO INSTITUTE
    Inventors: Takafumi UENO, Dan Que NGUYEN, Kazuhiko KATAYAMA, Reiko TODAKA, Kei HAGA, Akihito SAWADA
  • Publication number: 20240284966
    Abstract: This non-combustion-heated stick 1 comprises: a tobacco section 10 that has an aerosol source 11 containing tobacco; a cooling section 20 that cools vapor, generated by heating the tobacco section 10 by means of a heat generating element, to produce an aerosol; and a filter section 30 through which the aerosol passes. The tobacco section 10 has a higher filling density of tobacco in a part closer to the heat generating element than in a part further away therefrom.
    Type: Application
    Filed: May 9, 2024
    Publication date: August 29, 2024
    Applicant: Japan Tobacco Inc.
    Inventors: Kazuhiko KATAYAMA, Kimitaka UCHII, Tetsuya MOTODAMARI, Keisuke HARUKI
  • Publication number: 20240284972
    Abstract: A non-combustion-heating-type stick is provided with: a base material section including an aerosol source; a cooling unit for generating aerosol by cooling steam generated by heating the aerosol source; and, a filter section. The filter section has: a first filter disposed on the cooling unit side; a second filter disposed on the side opposite from the cooling unit with respect to the first filter; and, a powder-containing substance that is disposed in a cavity formed between the first filter and the second filter, is a mass of a raw material powder containing at least one of a taste component and a perfume component, and becomes a powder when an external force is applied. The second filter is formed with a powder supply path for supplying powder from the cavity 33 to a suction port end.
    Type: Application
    Filed: April 30, 2024
    Publication date: August 29, 2024
    Applicant: Japan Tobacco Inc.
    Inventors: Kazuhiko KATAYAMA, Kimitaka UCHII, Tetsuya MOTODAMARI, Keisuke HARUKI
  • Publication number: 20240277039
    Abstract: This non-combustion-heating-type stick comprises a substrate part including an aerosol source, a tubular cooling part for cooling vapor generated due to the substrate part being heated to generate an aerosol, and a filter part through which the aerosol passes. An open hole through which air is channeled from the exterior to the interior is formed in the cooling part at a position that is at least 7 mm from the boundary between the cooling part and the filter part, or that is within 13 mm from the boundary between the cooling part and the substrate part.
    Type: Application
    Filed: April 30, 2024
    Publication date: August 22, 2024
    Applicant: Japan Tobacco Inc.
    Inventors: Kazuhiko KATAYAMA, Kimitaka UCHII, Tetsuya MOTODAMARI, Keisuke HARUKI
  • Patent number: 11633557
    Abstract: A non-combustion type flavor inhaler comprising: an atomizer atomizing an aerosol source without burning; and a controller controlling a power output to the atomizer, wherein the controller is configured to start supply of a power output to the atomizer before start of a user's puffing action, and is configured to stop supply of a power output to the atomizer during a user's puffing action.
    Type: Grant
    Filed: February 17, 2021
    Date of Patent: April 25, 2023
    Assignee: JAPAN TOBACCO INC.
    Inventors: Kazuhiko Katayama, Akihiko Suzuki, Manabu Takeuchi, Takuma Nakano, Manabu Yamada
  • Patent number: 11633555
    Abstract: A non-combustion type flavor inhaler comprising: an atomizer atomizing an aerosol source without burning; and a controller controlling a power output to the atomizer, wherein the controller is configured to start supply of a power output to the atomizer before start of a user's puffing action, and is configured to stop supply of a power output to the atomizer during a user's puffing action.
    Type: Grant
    Filed: November 28, 2017
    Date of Patent: April 25, 2023
    Assignee: JAPAN TOBACCO INC.
    Inventors: Kazuhiko Katayama, Akihiko Suzuki, Manabu Takeuchi, Takuma Nakano, Manabu Yamada
  • Patent number: 11517616
    Abstract: The present invention addresses the issue of providing a norovirus component vaccine for subcutaneous, intradermal, percutaneous, or intramuscular administration which vaccine can readily immunize the target cells, an associated product of a molecular needle serving as an active ingredient of the vaccine, and a production method for the associated product. The invention provides a norovirus component vaccine containing, as an active ingredient, an associated product including a hexamer formed through bonding of two molecules of a trimer of a molecular needle represented by the following formula (1). W-L1-Xn—Y (1) [wherein W represents an amino acid sequence of P domain of the capsid protein of norovirus as an immunogen; L1 represents a first linker sequence having 0 to 100 amino acids; X represents an amino acid sequence represented by SEQ ID NO: 1; Y represents an amino acid sequence of a cell introduction domain; n is an integer of 1 to 3].
    Type: Grant
    Filed: October 19, 2017
    Date of Patent: December 6, 2022
    Assignees: Denka Company Limited, TOKYO INSTITUTE OF TECHNOLOGY, THE KITASATO INSTITUTE, DIRECTOR-GENERAL OF NATIONAL INSTITUTE OF INFECTIOUS DISEASES
    Inventors: Takafumi Ueno, Kengo Yoshikawa, Megumi Mano, Kazuhiko Katayama, Motohiro Miki, Reiko Todaka, Yoshimasa Takahashi, Taishi Onodera
  • Publication number: 20220362370
    Abstract: An object of the present invention is to establish means for providing a component vaccine which can elicit immunity to a non-structural protein. The present inventors have found that the object can be attained by providing a component vaccine containing an associated product containing a trimer and/or a hexamer of a molecular needle to which a non-structural protein of a pathogenic virus is attached.
    Type: Application
    Filed: August 26, 2020
    Publication date: November 17, 2022
    Applicants: TOKYO INSTITUTE OF TECHNOLOGY, THE KITASATO INSTITUTE, DENKA COMPANY LIMITED
    Inventors: Takafumi UENO, Dan Que NGUYEN, Kazuhiko KATAYAMA, Reiko TODAKA, Kei HAGA, Akihito SAWADA
  • Publication number: 20220218015
    Abstract: Provided is an oral tobacco product in which the amount of an oral tobacco material relative to a gum molded body can be changed in accordance with feelings and preferences of a user. The oral tobacco product includes an oral tobacco material that contains a tobacco raw material, a gum molded body that contains a gum base and that does not contain a tobacco raw material, and a packaging material that houses each of the oral tobacco material and the gum molded body in a state of being separated from each other.
    Type: Application
    Filed: April 1, 2022
    Publication date: July 14, 2022
    Applicant: JAPAN TOBACCO INC.
    Inventors: Yutaka KAIHATSU, Kazuhiko KATAYAMA
  • Patent number: 11299750
    Abstract: An object of the present invention is to solve problems in terms of stagnation of research on norovirus by providing a cultured transgenic cell or a transgenic animal in which murine norovirus (MNV) can be grown across the barrier of host specificity in mammalian cells, and providing a screening method that uses the cultured transgenic cell or the transgenic animal. The present inventors have found that MNV infection is determined in a cultured transgenic mammalian cell or a mammal possessing the cultured transgenic mammalian cell as its own cell, the cultured transgenic mammalian cell containing one or more species selected from the entirety or a portion of the murine CD300F gene and/or a CD300 family gene having an extracellular domain nucleotide sequence similar to that of the murine CD300F gene. The present inventors have solved the aforementioned problems by providing, for example, a norovirus-related drug screening method on the basis of this finding.
    Type: Grant
    Filed: February 1, 2017
    Date of Patent: April 12, 2022
    Assignees: DIRECTOR-GENERAL OF NATIONAL INSTITUTE OF INFECTIOUS DISEASES, Denka Company Limited, NATIONAL CENTER FOR GERIATRICS AND GERONTOLOGY
    Inventors: Kei Haga, Akira Fujimoto, Reiko Todaka, Kazuhiko Katayama, Akira Nakanishi, Motohiro Miki, Sakari Sekine, Hiroshi Otsuka, Shigetaka Mimori
  • Publication number: 20220062315
    Abstract: An object of the present invention is to provide an anti-human norovirus agent which can inhibit infection with and proliferation of human norovirus. The present inventors have found that the object can be attained through provision of an anti-human norovirus agent comprising, as an active ingredient, a fucose analog having an inhibitory action on glycosylation by fucosyltransferase (FUT). Examples of the active ingredient include a fucose analog represented by formula (III) or (IV) or a salt thereof. [In the formulas, each of formula (III) and formula (IV) represents an ?-anomer or a ?-anomer; each of R4, R3, and R4 is —OH or -OAc; R2 is a halogen atom, —OH, or -OAc; and R5 is —CH3, —C?CH, —C?CCH3, or —CH2C?CH.
    Type: Application
    Filed: December 27, 2019
    Publication date: March 3, 2022
    Applicants: KEIO UNIVERSITY, THE KITASATO INSTITUTE
    Inventors: Kazuhiko KATAYAMA, Akira FUJIMOTO, Kei HAGA, Reiko TODAKA, Toshiro SATO
  • Patent number: 11160304
    Abstract: A smokeless flavor inhalator includes a tobacco material as a flavor generator, and a heater for heating the tobacco material to allow flavor components to be released from the tobacco material while preventing smoke from being generated from the tobacco material. The heater has a carbon heat source and a cooling element. The carbon heat source and the cooling element cooperatively keep the heating temperature of the tobacco material at a temperature of 50 to 200° C.
    Type: Grant
    Filed: July 18, 2018
    Date of Patent: November 2, 2021
    Assignee: JAPAN TOBACCO INC.
    Inventors: Yasuhiro Shinozaki, Kazuhiko Katayama, Takeshi Akiyama, Yoshiaki Ishikawa, Manabu Yamada
  • Publication number: 20210299240
    Abstract: The present invention addresses the issue of providing a norovirus component vaccine for subcutaneous, intradermal, percutaneous, or intramuscular administration which vaccine can readily immunize the target cells, an associated product of a molecular needle serving as an active ingredient of the vaccine, and a production method for the associated product. The invention provides a norovirus component vaccine containing, as an active ingredient, an associated product including a hexamer formed through bonding of two molecules of a trimer of a molecular needle represented by the following formula (1). W-L1-Xn—Y (1) [wherein W represents an amino acid sequence of P domain of the capsid protein of norovirus as an immunogen; L1 represents a first linker sequence having 0 to 100 amino acids; X represents an amino acid sequence represented by SEQ ID NO: 1; Y represents an amino acid sequence of a cell introduction domain; n is an integer of 1 to 3].
    Type: Application
    Filed: October 19, 2017
    Publication date: September 30, 2021
    Applicants: DENKA COMPANY LIMITED, TOKYO INSTITUTE OF TECHNOLOGY, THE KITASATO INSTITUTE, JAPAN AS REPRESENTED BY DIRECTOR-GENERAL OF NATIONAL INSTITUTE OF INFECTIOUS DISEASES
    Inventors: Takafumi UENO, Kengo YOSHIKAWA, Megumi MANO, Kazuhiko KATAYAMA, Motohiro MIKI, Reiko TODAKA, Yoshimasa TAKAHASHI, Taishi ONODERA
  • Publication number: 20210170123
    Abstract: A non-combustion type flavor inhaler comprising: an atomizer atomizing an aerosol source without burning; and a controller controlling a power output to the atomizer, wherein the controller is configured to start supply of a power output to the atomizer before start of a user's puffing action, and is configured to stop supply of a power output to the atomizer during a user's puffing action.
    Type: Application
    Filed: February 17, 2021
    Publication date: June 10, 2021
    Applicant: JAPAN TOBACCO INC.
    Inventors: Kazuhiko KATAYAMA, Akihiko SUZUKI, Manabu TAKEUCHI, Takuma NAKANO, Manabu YAMADA
  • Publication number: 20210170124
    Abstract: A non-combustion type flavor inhaler comprising: an atomizer atomizing an aerosol source without burning; and a controller controlling a power output to the atomizer, wherein the controller is configured to start supply of a power output to the atomizer before start of a user's puffing action, and is configured to stop supply of a power output to the atomizer during a user's puffing action.
    Type: Application
    Filed: February 17, 2021
    Publication date: June 10, 2021
    Applicant: JAPAN TOBACCO INC.
    Inventors: Kazuhiko KATAYAMA, Akihiko SUZUKI, Manabu TAKEUCHI, Takuma NAKANO, Manabu YAMADA
  • Publication number: 20210090255
    Abstract: A recording medium stores therein a program for causing a computer to execute processing includes: acquiring images of N or less each including teeth adjacent to each other; arranging and displaying, in N image display areas capable of displaying the images in association with an arrangement of teeth, each of the images, in association with each of the N image display areas, a selection area for selecting presence or absence of an image and input areas for inputting information indicating a condition of each tooth included in an image displayed in each of the N image display areas; receiving a selection content in the selection area or input contents in the input areas or combination of the selection content and the input contents; and generating learning information in which a condition of each of the teeth and an image of each of the teeth are associated with each other.
    Type: Application
    Filed: December 8, 2020
    Publication date: March 25, 2021
    Applicant: FUJITSU LIMITED
    Inventors: Takashi Kumagai, Tadashi Fujioka, Chikashi Kigure, Kazuhiko Katayama, Yuji Deki, Shirin Aoki, Fumiyuki Takehisa, Tsugumasa Yamamoto, Wataru Oura
  • Patent number: 10668233
    Abstract: A method of manufacturing a flavor cartridge for a flavor inhalator, the method comprising the steps of filling a predetermined amount of a flavor generating material capable of emitting a flavor component in a frame compressing the flavor generating material in the frame by applying pressure thereto by a pusher and fixing a lid to the frame, wherein the flavor generating material contains a tobacco material obtained by shredding or pulverizing tobacco leaf, and the lid has air permeability.
    Type: Grant
    Filed: May 16, 2017
    Date of Patent: June 2, 2020
    Assignee: JAPAN TOBACCO INC.
    Inventors: Hirofumi Matsumoto, Takeshi Shinkawa, Atsuro Yamada, Kazuhiko Katayama, Manabu Yamada, Tomoichi Watanabe
  • Publication number: 20200087617
    Abstract: A 2D organoid for infection and growth culture of human diarrhea virus, obtained by: (1) obtaining a 3D organoid by three-dimensionally culturing a human intestinal epithelial stem cell, a human intestinal epithelial cell, or a tissue containing at least any of those cells on an extracellular matrix; and (2) dispersing the 3D organoid to prepare a single cell, and monolayer-culturing the single cell on an extracellular matrix to obtain the 2D organoid having a monolayer structure in which epithelial cells contain differentiated trophoblastic cells and goblet cells and configured as human intestinal lumen having a monolayer structure.
    Type: Application
    Filed: August 21, 2017
    Publication date: March 19, 2020
    Inventors: Toshiro Sato, Kazuhiko Katayama
  • Patent number: 10390555
    Abstract: The production process comprises a step (A) in which an alkali-treated tobacco source is heated to make the tobacco source release a flavoring ingredient into a gas phase, a step (B) in which the flavoring ingredient released into the gas phase is brought into contact with a given solvent which is a liquid substance at ordinary temperature, thereby trapping the flavoring ingredient in the given solvent, and a step (C) in which the given solvent is added to a constituent element.
    Type: Grant
    Filed: October 23, 2015
    Date of Patent: August 27, 2019
    Assignee: JAPAN TOBACCO INC.
    Inventors: Yoshinori Fujisawa, Takuma Nakano, Kimitaka Uchii, Manabu Takeuchi, Kazuhiko Katayama, Manabu Yamada