Patents by Inventor Yuta ONUMA

Yuta ONUMA 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: 20250035213
    Abstract: A shaft sealing device capable of maintaining high lubricity between sliding surfaces is provided. Communication paths communicating with an external space are connected to a drive space and a fluid in the drive space introduced between a pair of sliding surfaces by a fluid introduction mechanism is replenished from an external space through the communication paths.
    Type: Application
    Filed: March 7, 2022
    Publication date: January 30, 2025
    Inventors: Yuta NEGISHI, Ryosuke UCHIYAMA, Gai YAMAGUCHI, Yuki MAETANI, Takahiro TSUKAMOTO, Osamu MATSUMOTO, Sayaka MIYAZAKI, Hiroki INOUE, Minori ONUMA, So MAKISHIMA
  • Publication number: 20240391227
    Abstract: A sheet-like packaging material for packaging tobacco products, said packaging material comprising at least a first paper layer including an aromatized component, a barrier layer having barrier properties against the aromatized component, and a second paper layer, wherein the barrier layer is disposed so as to be positioned between the first paper layer and the second paper layer.
    Type: Application
    Filed: August 2, 2024
    Publication date: November 28, 2024
    Applicant: Japan Tobacco Inc.
    Inventor: Yuta ONUMA
  • Publication number: 20240383669
    Abstract: A sheet-like packaging material for packaging tobacco products, said packaging material comprising at least a paper layer including a flavoring component, and a barrier layer having barrier properties against the flavoring component, wherein the barrier layer is a non-metal layer.
    Type: Application
    Filed: July 29, 2024
    Publication date: November 21, 2024
    Applicant: Japan Tobacco Inc.
    Inventor: Yuta ONUMA
  • Publication number: 20240301955
    Abstract: A movable valve element (24) is comprised of a valve member (22) and a leaf spring (26). A passage forming member (12) is securely fixed to a valve chamber forming member (10) that forms a valve chamber (S). The passage forming member (12) has a fluid passage (14) extending from one end to the other end thereof, with the one end (14a) of the fluid passage (14) constituting an outlet port of the valve chamber (S). The passage forming member (12) has an O-ring (20) surrounding and spaced apart from the outlet port (14a), the O-ring (20) constituting a valve seat. Spring force of the leaf spring (26) brings the valve member (22) into pressure contact with the O-ring (20), to form a closed valve state.
    Type: Application
    Filed: January 12, 2024
    Publication date: September 12, 2024
    Applicant: YAMABIKO CORPORATION
    Inventors: Takahiro YAMAZAKI, Yuta ONUMA, Tamotsu SAITO, Tomoyoshi KUDO, Ryosuke IMAI
  • Publication number: 20240026842
    Abstract: A flow control restrictor includes: a needle valve; and a limit cap which is made of metal and attached to the needle valve. In the needle valve, a first shaft portion which is made of metal and screwed into a regulation hole and a second shaft portion which is made of metal and housed inside the regulation hole are formed. On the second shaft portion, a first projection-and-recess portion is formed, and a pressed portion made of resin is provided on the first shaft portion side relative to the first projection-and-recess portion. The limit cap is fitted onto the second shaft portion. On the limit cap, a projecting portion which is inserted into a restriction groove of the regulation hole and a second projection-and-recess portion which is engaged with the first projection-and-recess portion are formed. The pressed portion is pressed against an inner peripheral surface of the limit cap.
    Type: Application
    Filed: June 29, 2023
    Publication date: January 25, 2024
    Applicant: YAMABIKO CORPORATION
    Inventors: Tamotsu SAITO, Tomoyoshi KUDO, Yuta ONUMA, Ryosuke IMAI
  • Publication number: 20240026841
    Abstract: A fuel regulator includes a limit cap which is attached to a needle valve which is inserted into a regulation hole. In an inner peripheral surface of a second hole portion of the regulation hole, a restriction groove and a guide groove which extends from the restriction groove through an outer surface of a main body portion in an axial direction of the second hole portion are formed. A projecting portion which is inserted into the restriction groove is formed on an outer peripheral surface of the limit cap, and the projecting portion is capable of passing through the guide groove, and in the main body portion, a cast hole which extends from the restriction groove through the outer surface of the main body portion in a direction intersecting the axial direction of the second hole portion is formed.
    Type: Application
    Filed: July 10, 2023
    Publication date: January 25, 2024
    Applicant: YAMABIKO CORPORATION
    Inventors: Tamotsu SAITO, Tomoyoshi KUDO, Yuta ONUMA, Ryosuke IMAI
  • Patent number: 11719195
    Abstract: A limiting cap is provided to restrict rotation of a needle valve and to be easily assembled onto the needle cap. The limiting cap assembled onto the needle valve screwed into an adjustment hole of a fuel adjuster includes a main body to be arranged onto the needle valve. A rising part, which is inserted into a recess of the fuel adjuster, is formed on an outer peripheral surface of the main body. The main body includes a first engagement part on an inner side and a fixing part on an outer side. A first hubbly part formed in an inner peripheral surface of the first engagement part is engageable with a second hubbly part formed in an outer peripheral surface of the needle valve. The needle valve is fixed into the fixing part. The fixing part is formed to have a smaller inner diameter than the first engagement part.
    Type: Grant
    Filed: November 27, 2020
    Date of Patent: August 8, 2023
    Assignee: YAMABIKO CORPORATION
    Inventors: Tamotsu Saito, Tomoyoshi Kudo, Yuta Onuma, Ryosuke Imai
  • Publication number: 20230091096
    Abstract: A sheet-form packaging material for forming a tobacco product package that packages a tobacco product in a tightly sealed internal housing part includes a paper base layer containing a fiber cellulose-based material; a steam barrier layer layered over the paper base layer, containing a resin material, containing no metal material, and having steam barrier property; and a heat-seal layer formed as an outer layer on at least one surface side of the packaging material, and coated with a heat-seal agent for heat-sealing against one another the edge portions of the packaging material. The steam barrier layer has a steam permeability of between 1 [g/m2·24 h] and 100 [g/m2·24 h] inclusive, and the heat seal layer has a thickness of between 0.5 [?m] and 5 [?m] inclusive.
    Type: Application
    Filed: November 23, 2022
    Publication date: March 23, 2023
    Applicant: JAPAN TOBACCO INC.
    Inventors: Yuta ONUMA, Hiroyoshi ONO, Shinichi IWATA
  • Publication number: 20230083278
    Abstract: Provided are a wrapping material and package that are for commercial tobacco products, that are capable of tightly sealing commercial tobacco products, and that are environmentally friendlier than conventional materials and packages because of using less amount of resin materials. This sheet-shaped wrapping material is for forming a package that is for commercial tobacco products and that wraps the commercial tobacco products in a tightly-sealed internal containing portion. The wrapping material comprises: a paper base layer containing a fibrous cellulose material; an aluminum-containing layer that is layered on top of the paper base layer; and a heat seal layer that is formed as an outer layer on at least one side of the wrapping material, and that is a coating of a heat-sealing agent that heat-seals edges of the wrapping material together. The thickness of the heat seal layer is 0.5-5 ?m.
    Type: Application
    Filed: November 23, 2022
    Publication date: March 16, 2023
    Applicant: JAPAN TOBACCO INC.
    Inventors: Yuta ONUMA, Hiroyoshi ONO, Shinichi IWATA
  • Publication number: 20210164419
    Abstract: A limiting cap is provided to restrict rotation of a needle valve and to be easily assembled onto the needle cap. The limiting cap assembled onto the needle valve screwed into an adjustment hole of a fuel adjuster includes a main body to be arranged onto the needle valve. A rising part, which is inserted into a recess of the fuel adjuster, is formed on an outer peripheral surface of the main body. The main body includes a first engagement part on an inner side and a fixing part on an outer side. A first hubbly part formed in an inner peripheral surface of the first engagement part is engageable with a second hubbly part formed in an outer peripheral surface of the needle valve. The needle valve is fixed into the fixing part. The fixing part is formed to have a smaller inner diameter than the first engagement part.
    Type: Application
    Filed: November 27, 2020
    Publication date: June 3, 2021
    Applicant: YAMABIKO CORPORATION
    Inventors: Tamotsu SAITO, Tomoyoshi KUDO, Yuta ONUMA, Ryosuke IMAI