Patents by Inventor Kazuyoshi Yokota

Kazuyoshi Yokota 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: 20220211586
    Abstract: A root canal filling material composition comprising a lithium salt has higher healing promoting activity than conventional root canal filling material compositions. Preferable compositions are (1) a composition further comprising a calcium hydroxide, (2) a combination composition of a paste A containing a higher fatty acid and rosin and a paste B containing magnesium oxide and a vegetable oil, and one or both of the paste A and the paste B comprise the lithium salt, and (3) a combination composition of a paste A and a paste B and hardens by mixing the paste A and the paste B, one or both of the paste A and the paste B comprise the lithium salt, one or both of the paste A and the paste B comprise a glass powder, the glass powder contains calcium oxide and silicon dioxide in a total amount of 50 to 100% by weight relative to a total amount of the glass powder, and in the glass powder, a weight ratio of the calcium oxide to the silicon dioxide (calcium oxide:silicon dioxide) is 6:4 to 3:7.
    Type: Application
    Filed: May 10, 2019
    Publication date: July 7, 2022
    Applicant: NIPPON SHIKA YAKUHIN CO., LTD.
    Inventors: Kazuyoshi YOKOTA, Emi SAKANO, Shousaku ITOH, Mikako HAYASHI
  • Patent number: 9597946
    Abstract: The problem to be solved is to provide a door frame and a method of manufacturing the same, with reducing manufacturing cost. A door frame has a rear sash (vertical sash) (41) for supporting door glass and has a lock-device mounting bracket (door-frame component) (70) attached by welding to the rear sash (41) and having formed therein through-holes (70e, 70d) for welding. Weld beads (73, 75) are formed between the rear sash (41) and the wall surfaces of the through-holes (70e, 70d) for welding, the through-holes (70e, 70d) being formed in the lock-device mounting bracket (70).
    Type: Grant
    Filed: May 14, 2013
    Date of Patent: March 21, 2017
    Assignee: SHIROKI CORPORATION
    Inventor: Kazuyoshi Yokota
  • Publication number: 20160114658
    Abstract: A vehicle door frame includes a base and a projecting portion, which projects from a surface of the base, wherein a first side of the projecting portion and a second side of the projecting portion extend along a lengthwise direction of the vehicle door frame, and a recess is formed in the first side of the projecting portion and is recessed toward the second side of the projecting portion.
    Type: Application
    Filed: October 26, 2015
    Publication date: April 28, 2016
    Applicant: SHIROKI CORPORATION
    Inventors: Kazuyoshi YOKOTA, Jun MAKITA, Shunsuke TANAKA, Yuji MORI
  • Patent number: 9132720
    Abstract: A sash mounting structure includes positioners which are respectively provided at the lower end of an insertion support portion and the upper end of a lower sash that are inserted into and supported by a door panel, and which define the position of the lower sash relative to the side sash by being mutually engaged; and a fixer which is provided between the lower sash and the door panel, has a predetermined degree of freedom in fixing position in a vertical direction and fixes the lower sash to the door panel, wherein the lower sash is fixed to the door panel with the lower sash being positioned by the positioners. This structure strikes a balance between easiness of positioning the lower sash and accommodation of variations in accuracy, thus making it possible to improve the mounting workability when mounting the lower sash to the door panel.
    Type: Grant
    Filed: February 19, 2013
    Date of Patent: September 15, 2015
    Assignee: SHIROKI CORPORATION
    Inventor: Kazuyoshi Yokota
  • Publication number: 20150135600
    Abstract: A door sash includes a sash member including: a body portion having: a first sidewall facing one side of a door glass; a second sidewall facing the other side of the door glass; and a bottom wall that connects base ends of the first side wall and the second sidewall and faces a end face along a thickness direction of the door glass; and a fin portion which extends from a corner between the first sidewall and the bottom wall and has a surface flush with a surface opposite to a surface, which faces the door glass, of either one of the first sidewall and the bottom wall, and wherein the sash member is bent in a width direction of a vehicle.
    Type: Application
    Filed: November 18, 2014
    Publication date: May 21, 2015
    Inventors: Kazuyoshi YOKOTA, Kenji SHIMIZU
  • Patent number: 9027285
    Abstract: A door frame and a frame body including a glass opposing portion, a design portion positioned on one side of the glass opposing portion on the vehicle exterior side, a tubular portion positioned on the other side of the glass opposing portion on the vehicle interior side, and a glass guide portion having a concave cross section surrounding the edge of the door glass. All portions are collectively structured as a single member who is continuous and uniform from the upper sash portion to the side sash portion. A corner portion is created by a bending process at a boundary between the upper sash portion and the side sash portion. The width of the design portion of the frame varies in at least one area along the length thereof and the design portion of the frame body is covered with an exterior member.
    Type: Grant
    Filed: December 2, 2013
    Date of Patent: May 12, 2015
    Assignee: Shiroki Corporation
    Inventors: Katsuhisa Fukui, Tadashi Mutoh, Atsuo Noda, Kazuyoshi Yokota
  • Publication number: 20150108785
    Abstract: The problem to be solved is to provide a door frame and a method of manufacturing the same, with reducing manufacturing cost. A door frame has a rear sash (vertical sash) (41) for supporting door glass and has a lock-device mounting bracket (door-frame component) (70) attached by welding to the rear sash (41) and having formed therein through-holes (70e, 70d) for welding. Weld beads (73, 75) are formed between the rear sash (41) and the wall surfaces of the through-holes (70e, 70d) for welding, the through-holes (70e, 70d) being formed in the lock-device mounting bracket (70).
    Type: Application
    Filed: May 14, 2013
    Publication date: April 23, 2015
    Applicant: SHIROKI CORPORATION
    Inventor: Kazuyoshi Yokota
  • Publication number: 20150048646
    Abstract: A sash mounting structure includes positioners which are respectively provided at the lower end of an insertion support portion and the upper end of a lower sash that are inserted into and supported by a door panel, and which define the position of the lower sash relative to the side sash by being mutually engaged; and a fixer which is provided between the lower sash and the door panel, has a predetermined degree of freedom in fixing position in a vertical direction and fixes the lower sash to the door panel, wherein the lower sash is fixed to the door panel with the lower sash being positioned by the positioners. This structure strikes a balance between easiness of positioning the lower sash and accommodation of variations in accuracy, thus making it possible to improve the mounting workability when mounting the lower sash to the door panel.
    Type: Application
    Filed: February 19, 2013
    Publication date: February 19, 2015
    Applicant: SHIROKI CORPORATION
    Inventor: Kazuyoshi Yokota
  • Publication number: 20140298727
    Abstract: A door frame, a frame body including a glass opposing portion, a design portion on one side of the glass opposing portion and a tubular portion positioned on the other side thereof, is structured as a single member continuous from an upper sash portion to a side sash portion by forming the tubular portion to have a uniform cross section and by a bending process performed on a corner portion. The design portion is covered with an exterior member including an inwardly projecting portion projecting toward the inner periphery of the door frame and folding back, and a glass guide portion having a concave cross section is configured from the inwardly projecting portion of the exterior member and the design portion, the tubular portion and the glass opposing portion. The width of the inwardly projecting portion of the exterior member varies.
    Type: Application
    Filed: June 23, 2014
    Publication date: October 9, 2014
    Applicant: SHIROKI CORPORATION
    Inventors: Katsuhisa FUKUI, Tadashi MUTOH, Atsuo NODA, Kazuyoshi YOKOTA
  • Patent number: 8839565
    Abstract: A vehicle door sash having a uniform cross-sectional shape is provided, including an enclosed section on a vehicle inner side, and an outer extending wall which extends from the enclosed section toward the vehicle outer side, the enclosed section provided with inner and outer walls, with respect to a vehicle width direction, a body-side wall, and a window-opening-side wall that is adjacent to a window glass of the vehicle door. A weather strip is abutted against the body-side of the outer extending wall, and a glass runner is abutted against the window side of the outer extending wall. The body-side wall of the enclosed section is straight in cross section. A thickness of at least one of the inner and outer walls of the enclosed section is greater than a thickness of each of the body-side wall and the window-opening-side wall.
    Type: Grant
    Filed: May 21, 2010
    Date of Patent: September 23, 2014
    Assignee: Shiroki Corporation
    Inventors: Takayuki Okada, Jun Makita, Kenji Shimizu, Atsuo Noda, Go Yamane, Kazuyoshi Yokota
  • Publication number: 20140157602
    Abstract: A door frame, a frame body which includes a glass opposing portion, a design portion positioned on one side of the glass opposing portion on the vehicle exterior side, a tubular portion positioned on the other side of the glass opposing portion on the vehicle interior side, and a glass guide portion having a concave cross section surrounding the edge of the door glass, is structured as a single member which is continuous from an upper sash portion to a side sash portion by having a uniform cross section from the upper to side sash portions, and by a bending process performed on the corner portion. The width of the design portion of the frame varies at at least one area along the length thereof and the design portion of the frame body is covered with an exterior member.
    Type: Application
    Filed: December 2, 2013
    Publication date: June 12, 2014
    Applicant: SHIROKI CORPORATION
    Inventors: Katsuhisa FUKUI, Tadashi MUTOH, Atsuo NODA, Kazuyoshi YOKOTA
  • Patent number: 8354117
    Abstract: Object of the present invention is to provide a preparation for oral cavity that is appropriately usable as a prophylactic agent for dental caries, a therapeutic agent for dental caries at early stage, a prophylactic and/or therapeutic agent for dentinal hypersensitivity, a preparation for the lining of a dentin cavity surface, or the like, which has a superior effect of sealing the dentinal tubules, is capable of improving the acid resistance of the teeth and re-calcifying the teeth, ensures a short-time treatment with an easy operation, and has a high safety and good aesthetic properties.
    Type: Grant
    Filed: July 30, 2010
    Date of Patent: January 15, 2013
    Assignee: Nippon Shika Yakuhin Co., Ltd.
    Inventors: Masayoshi Tsunekawa, Kazuyoshi Yokota
  • Publication number: 20120198775
    Abstract: A door frame, a frame body which includes a glass opposing portion, a design portion positioned on one side of the glass opposing portion on the vehicle exterior side, a tubular portion positioned on the other side of the glass opposing portion on the vehicle interior side, and a glass guide portion having a concave cross section surrounding the edge of the door glass, is structured as a single member which is continuous from an upper sash portion to a side sash portion by having a uniform cross section from the upper to side sash portions, and by a bending process performed on the corner portion. The width of the design portion of the frame varies at least one area along the length thereof and the design portion of the frame body is covered with an exterior member.
    Type: Application
    Filed: April 13, 2012
    Publication date: August 9, 2012
    Applicant: SHIROKI CORPORATION
    Inventors: Katsuhisa FUKUI, Tadashi Mutoh, Atsuo Noda, Kazuyoshi Yokota
  • Publication number: 20120192498
    Abstract: A door frame, a frame body including a glass opposing portion, a design portion on one side of the glass opposing portion and a tubular portion positioned on the other side thereof, is structured as a single member continuous from an upper sash portion to a side sash portion by forming the tubular portion to have a uniform cross section and by a bending process performed on a corner portion. The design portion is covered with an exterior member including an inwardly projecting portion projecting toward the inner periphery of the door frame and folding back, and a glass guide portion having a concave cross section is configured from the inwardly projecting portion of the exterior member and the design portion, the tubular portion and the glass opposing portion. The width of the inwardly projecting portion of the exterior member varies.
    Type: Application
    Filed: April 13, 2012
    Publication date: August 2, 2012
    Applicant: SHIROKI CORPORATION
    Inventors: Katsuhisa FUKUI, Tadashi MUTOH, Atsuo NODA, Kazuyoshi YOKOTA
  • Publication number: 20120135059
    Abstract: Object of the present invention is to provide a preparation for oral cavity that is appropriately usable as a prophylactic agent for dental caries, a therapeutic agent for dental caries at early stage, a prophylactic and/or therapeutic agent for dentinal hypersensitivity, a preparation for the lining of a dentin cavity surface, or the like, which has a superior effect of sealing the dentinal tubules, is capable of improving the acid resistance of the teeth and re-calcifying the teeth, ensures a short-time treatment with an easy operation, and has a high safety and good aesthetic properties.
    Type: Application
    Filed: July 30, 2010
    Publication date: May 31, 2012
    Applicant: NIPPON SHIKA YAKUHIN CO., LTD.
    Inventors: Masayoshi Tsunekawa, Kazuyoshi Yokota
  • Publication number: 20120124912
    Abstract: A vehicle door frame includes a sash frame that forms a vehicle door frame body and a bracket joined to the sash frame, wherein the sash frame and the bracket are made to mutually overlap each other so that an edge portion of one of the sash frame and the bracket is positioned on the other of the sash frame and the bracket. The sash frame and the bracket are fixed to each other at the edge portion by welding, thereby forming a welded portion thereat. The sash frame and the bracket are fixed to each other by an adhesive injected in between opposed surfaces of the mutually overlapping portions of the sash frame and the bracket, thereby forming an adhesion portion thereat. A method of producing such a vehicle door frame is also disclosed.
    Type: Application
    Filed: November 17, 2011
    Publication date: May 24, 2012
    Applicant: SHIROKI CORPORATION
    Inventors: Takayuki OKADA, Kenji Shimizu, Jun Makita, Kazuyoshi Yokota
  • Publication number: 20100293863
    Abstract: A vehicle door sash having a uniform cross-sectional shape is provided, including an enclosed section on a vehicle inner side, and an outer extending wall which extends from the enclosed section toward the vehicle outer side, the enclosed section provided with inner and outer walls, with respect to a vehicle width direction, a body-side wall, and an adjacent-to-glass wall that is adjacent to a window glass of the vehicle door. A weather strip is abutted against the body-side of the outer extending wall, and a glass runner is abutted against the window side of the outer extending wall. The body-side wall of the enclosed section is straight in cross section. A thickness of at least one of the inner and outer walls of the enclosed section is greater than a thickness of each of the body-side wall and the adjacent-to-glass wall.
    Type: Application
    Filed: May 21, 2010
    Publication date: November 25, 2010
    Applicant: SHIROKI CORPORATION
    Inventors: Takayuki Okada, Jun Makita, Kenji Shimizu, Atsuo Noda, Go Yamane, Kazuyoshi Yokota
  • Publication number: 20050207978
    Abstract: Disclosed is a dental-caries detecting solution prepared by dissolving a dye capable of staining a carious region of a tooth to provide enhanced visibility of the carious region, in a water-miscible organic solvent, which is capable of distinctively staining only a first decalcified layer, or an outer layer of a softened dentine, to be removed, absolutely without staining a second layer, or an inner layer of the softened dentine, which should not be removed. In the dental-caries detecting solution, the water-miscible organic solvent contains a compound having a carbon number of 11 or more and including one or more hydroxyl groups. The water-miscible organic solvent is adjusted such that the dental-caries detecting solution has a viscosity of 300 to 1500 Cp.
    Type: Application
    Filed: March 14, 2005
    Publication date: September 22, 2005
    Inventors: Kazuo Ito, Misa Oikawa, Mizuho Kusunoki, Kazuyoshi Yokota, Masayoshi Tsunekawa
  • Publication number: 20040243515
    Abstract: In a transaction with an automatic transaction apparatus, necessary processes for a transaction in front of the automatic transaction apparatus are carried out in advance utilizing portable communication terminals, and information (transaction authentication information) on the preceding processes executed in advance is transmitted from the portable communication terminal to the automatic transaction apparatus. Thereby, there is no need to input again the information necessary for the transaction into the automatic transaction apparatus and reduction of the time necessary for the transaction by the time necessary for the above inputting can be facilitated.
    Type: Application
    Filed: July 2, 2004
    Publication date: December 2, 2004
    Applicant: FUJITSU LIMITED
    Inventors: Makoto Kurihara, Kazuyoshi Yokota, Setsuo Tsukui, Yoshio Onawa