Patents by Inventor Yasufumi Tsuchiya

Yasufumi Tsuchiya 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: 20220133441
    Abstract: A dental coupling member related comprises: a first elongated body including, in a first-orientation end region, a first coupling part to be coupled with a first attaching part of a first dental appliance and including, formed in a second-orientation end region, a screwing part; an outer tube including, in a second-orientation end region, a second coupling part to be coupled with a second attaching part of a second dental appliance, and being open at an end on a first-orientation end region side; a third elongated body including a screwed part formed in a first-orientation end region and is inserted into the outer tube in a second-orientation end region of the outer tube, the screwed part being for screwing with the screwing part; and a protrusion projecting from an inner peripheral surface of the outer tube and facing an end surface of the third elongated body on the second-orientation end region side.
    Type: Application
    Filed: January 12, 2022
    Publication date: May 5, 2022
    Inventors: Takashi YUKITA, Hideyuki NAGAI, Yasufumi TSUCHIYA, Daigo HAMA, Kohei YAZAKI, You SATO, Junji OOWA
  • Patent number: 11253341
    Abstract: A dental coupling member related to a first aspect of the invention comprises: a rod having, at one end region, a first coupling part that is coupled to a first attachment part of a first dental tool, and having a screw part at the other end region; and a cylindrical body having, in an inner circumferential surface of one end region, a screwed part into which the screw part is screwed, and having, at the other end region, a second coupling part that is coupled to a second attachment part of a second dental tool. This dental coupling member comprises a different-torque part at the screw part and/or the screwed part, the different-torque part having a different torque for screwing against the other of the screw part and the screwed part. This dental coupling member suppresses the occurrence of loosening between the screw part and the screwed part.
    Type: Grant
    Filed: October 12, 2017
    Date of Patent: February 22, 2022
    Assignees: Mitsui Chemicals, Inc., Takashima Sangyo Co., Ltd.
    Inventors: Takashi Yukita, Hideyuki Nagai, Yasufumi Tsuchiya, Daigo Hama, Kohei Yazaki, You Sato, Junji Oowa
  • Publication number: 20210212801
    Abstract: A dental coupling member which can easily adjust the position of the lower jaw of the user without increasing the size of the coupling member is provided. The dental coupling member is attached to upper and lower oral appliances to couple them, and regulates displacement of the lower oral appliance to rear side. The dental coupling member has; an outer which is a cylindrical member having a through hole, to be attached to one oral appliance; an inner having a rod-shaped insertion portion to be inserted into an interior of the cylindrical portion and slidably held by the outer, the inner to be attached to the other oral appliance; and a stopper adjustably positioned inside the cylindrical portion, the stopper serve to limit a slide width of the insertion portion inside the cylindrical portion by adjustment of its position along the axial direction of the cylindrical portion.
    Type: Application
    Filed: March 20, 2019
    Publication date: July 15, 2021
    Inventors: Takashi Yukita, Haruka Sugita, Akira Hasegawa, Yasufumi Tsuchiya, Takehiro Ishiguro, Chiaki Endo, Kenichi Kasahara, Kohei Yazaki, Toshiaki Donuma, You Sato, Daigo Hama
  • Patent number: 11058660
    Abstract: A method of healing an external wound involves applying an external wound-healing agent to an external wound, or bringing the external wound-healing agent applied to a substrate into contact with an external wound, wherein the external wound-healing agent includes, as an active ingredient, at least one compound of a glycerol alkyl ester represented by defined Formula (I) or a diglycerol alkyl ester represented by defined Formula (II). In a further embodiment, the method involves bringing a fiber aggregate or a film into contact with an external wound, wherein the fiber aggregate or the film each includes a thermoplastic resin and at least one compound of the glycerol alkyl ester or the diglycerol alkyl ester.
    Type: Grant
    Filed: December 31, 2018
    Date of Patent: July 13, 2021
    Assignee: MITSUI CHEMICALS, INC.
    Inventors: Naosuke Kunimoto, Kenichi Suzuki, Kouya Kojima, Akira Hasegawa, Yasufumi Tsuchiya, Jun Kamada, Satoshi Yamasaki, Goro Kuwamura, Daisuke Hasegawa
  • Publication number: 20200390594
    Abstract: A mouthpiece including a constituent portion (X) that includes an olefin-based polymer (A) having a repeating unit having 2 or 3 carbon atoms and that satisfies a bending elastic modulus (?) at 23° C. of 80 MPa???1000 MPa.
    Type: Application
    Filed: February 27, 2017
    Publication date: December 17, 2020
    Applicant: Mitsui Chemicals, Inc.
    Inventors: Takashi Yukita, Maki Yamamoto, Hideyuki Nagai, Yasufumi Tsuchiya
  • Publication number: 20200121493
    Abstract: The mouthpiece according to a first aspect of the present invention comprises a pair of opposing upper jaw mouthpiece and lower jaw mouthpiece, a pair of positioning members that is provided in either one of the upper jaw mouthpiece and the lower jaw mouthpiece and to be able to carry out positional adjustment in a front-back direction, and a pair of stoppers that is provided in the other one of the upper jaw mouthpiece and the lower jaw mouthpiece, regulates a rearward displacement of the lower jaw mouthpiece by coming into abutment with the positioning members, and regulates lateral displacements of the upper jaw mouthpiece and the lower jaw mouthpiece by coming into abutment with the either one of the upper jaw mouthpiece and the lower jaw mouthpiece.
    Type: Application
    Filed: December 14, 2017
    Publication date: April 23, 2020
    Inventors: Takashi YUKITA, Hideyuki NAGAI, Yasufumi TSUCHIYA, Walid RAAD
  • Publication number: 20200121494
    Abstract: A mouthpiece with which the advancement amount of a lower jaw mouthpiece can be more easily adjusted, without increasing the size of the mouthpiece, is provided. The mouthpiece has: a pair of upper jaw and lower jaw mouthpieces facing each other; a male screw; a female screw; a front holding part provided to one of the mouthpieces, holding the male screw or the female screw; and a rear holding part provided to the other mouthpiece, holding the female screw or the male screw further rearward than the front holding part. The female screw and the male screw position the lower jaw mouthpiece in the front-rear direction with respect to the upper jaw mouthpiece, as a result of the turning of the male screw which is screwed into the female screw at a denture tooth surface or further rearward than the denture tooth surface.
    Type: Application
    Filed: June 21, 2018
    Publication date: April 23, 2020
    Inventors: Jingo KUSUKAWA, Ryuichiro TANOUE, Kinuko OGATA, Kohei YAZAKI, Daigo HAMA, Junji OOWA, Takashi YUKITA, Hideyuki NAGAI, Akira HASEGAWA, Yasufumi TSUCHIYA
  • Publication number: 20200046466
    Abstract: A dental coupling member related to a first aspect of the invention comprises: a rod having, at one end region, a first coupling part that is coupled to a first attachment part of a first dental tool, and having a screw part at the other end region; and a cylindrical body having, in an inner circumferential surface of one end region, a screwed part into which the screw part is screwed, and having, at the other end region, a second coupling part that is coupled to a second attachment part of a second dental tool. This dental coupling member comprises a different-torque part at the screw part and/or the screwed part, the different-torque part having a different torque for screwing against the other of the screw part and the screwed part. This dental coupling member suppresses the occurrence of loosening between the screw part and the screwed part.
    Type: Application
    Filed: October 12, 2017
    Publication date: February 13, 2020
    Inventors: Takashi YUKITA, Hideyuki NAGAI, Yasufumi TSUCHIYA, Daigo HAMA, Kohei YAZAKI, You SATO, Junji OOWA
  • Publication number: 20190183670
    Abstract: A mouthpiece includes a maxillary piece that is mounted to maxillary dentition, a mandibular piece that is mounted to mandibular dentition, a coupling member that positions the mandibular piece with respect to the maxillary piece, and a spacer. The spacer includes an anchor portion that includes an indentation and that is formed at an inner wall face of the maxillary piece, a protrusion that is fit into the indentation of the anchor portion, and a clamped portion that is clamped between the maxillary piece and the mandibular piece.
    Type: Application
    Filed: June 21, 2017
    Publication date: June 20, 2019
    Applicant: Mitsui Chemicals, Inc.
    Inventors: Hideyuki NAGAI, Takashi YUKITA, Maki YAMAMOTO, Yasufumi TSUCHIYA, Walid RAAD
  • Publication number: 20190133987
    Abstract: A method of healing an external wound involves applying an external wound-healing agent to an external wound, or bringing the external wound-healing agent applied to a substrate into contact with an external wound, wherein the external wound-healing agent includes, as an active ingredient, at least one compound of a glycerol alkyl ester represented by defined Formula (I) or a diglycerol alkyl ester represented by defined Formula (II). In a further embodiment, the method involves bringing a fiber aggregate or a film into contact with an external wound, wherein the fiber aggregate or the film each includes a thermoplastic resin and at least one compound of the glycerol alkyl ester or the diglycerol alkyl ester.
    Type: Application
    Filed: December 31, 2018
    Publication date: May 9, 2019
    Applicant: Mitsui Chemicals, Inc.
    Inventors: Naosuke KUNIMOTO, Kenichi SUZUKI, Kouya KOJIMA, Akira HASEGAWA, Yasufumi TSUCHIYA, Jun KAMADA, Satoshi YAMASAKI, Goro KUWAMURA, Daisuke HASEGAWA
  • Publication number: 20190110866
    Abstract: A coupling member includes a sliding member and a sleeve. The sliding member has one axial direction end portion coupled to a first attachment portion provided at a first attachment that is mounted to one of a maxilla or a mandible. The sleeve has one axial direction end portion coupled to a second attachment portion provided at a second attachment that is mounted to the other of the maxilla and the mandible. The sliding member is inserted into the sleeve so as to be slidable. A restricting section is formed at the sleeve between two axial direction end portions of the sleeve so as to restrict sliding of the sliding member in both directions along an axial direction of the sliding member.
    Type: Application
    Filed: June 21, 2017
    Publication date: April 18, 2019
    Applicant: Mitsui Chemicals, Inc.
    Inventors: Hideyuki Nagai, Takashi Yukita, Maki Yamamoto, Yasufumi Tsuchiya, Walid Raad
  • Publication number: 20170209345
    Abstract: An object of the present invention is to provide a dental material, particularly, a dental prosthesis, having excellent properties such as hydrophilicity and antifouling properties. The dental prosthesis according to the present invention includes a monolayer film obtained by curing a composition including: a compound (I) having at least one hydrophilic group selected from anionic hydrophilic groups and cationic hydrophilic groups, and at least one functional group with a polymerizable carbon-carbon double bond; a compound (II) having two or more functional groups with a polymerizable carbon-carbon double bond (wherein the compound (II) has no anionic hydrophilic group nor cationic hydrophilic group); and a surfactant (III) having a hydrophilic moiety including an anionic hydrophilic group, a cationic hydrophilic group or two or more hydroxyl groups, and a hydrophobic moiety composed of an organic residue (wherein the surfactant has no polymerizable carbon-carbon double bond).
    Type: Application
    Filed: July 8, 2015
    Publication date: July 27, 2017
    Applicant: MITSUI CHEMICALS, INC.
    Inventors: Akira HASEGAWA, Yasufumi TSUCHIYA, Koya KOJIMA, Koju OKAZAKI, Yohsuke ASANO, Kenichi FUJII, Takaaki HAYASHI
  • Publication number: 20170209406
    Abstract: An external wound-healing agent includes, as an active ingredient, at least one compound of a glycerol alkyl ester represented by Formula (I) or a diglycerol alkyl ester represented by Formula (II).
    Type: Application
    Filed: July 15, 2015
    Publication date: July 27, 2017
    Applicant: Mitsui Chemicals, Inc.
    Inventors: Naosuke Kunimoto, Kenichi Suzuki, Kouya Kojima, Akira Hasegawa, Yasufumi Tsuchiya, Jun Kamada, Satoshi Yamasaki, Goro Kuwamura, Daisuke Hasegawa
  • Publication number: 20090258966
    Abstract: An object of the present invention is to provide a dental composition having excellent adhesive effect and simultaneously not causing microleakage. A dental composition of a first embodiment of the present invention includes (A) an acidic-group containing polymerizable monomer, (B) a polymerizable monomer, (C) a filler comprising poly(meth)acrylate particles, (D) a calcium-containing material including tetracalcium phosphate (TTCP) and dicalcium phosphate (DCP), and (E) a polymerization initiator. The component (A) is contained at 16-70 parts by weight based on a total of 100 parts by weight of (A)+(B). The component (B) is contained at 84-30 parts by weight based on a total of 100 parts by weight of (A)+(B). The component (C) is contained at 0.2-297 parts by weight relative to a total of 100 parts by weight of (A)+(B). The component (D) is contained at 0.2-297 parts by weight relative to a total of 100 parts by weight of (A)+(B).
    Type: Application
    Filed: October 4, 2006
    Publication date: October 15, 2009
    Applicants: NIHON UNIVERSITY, SUN MEDICAL CO., LTD.
    Inventors: Satoshi Hirayama, Takuji Ikemi, Yasufumi Tsuchiya, Tatsuya Ori, Takashi Yamamoto
  • Patent number: D870293
    Type: Grant
    Filed: August 30, 2017
    Date of Patent: December 17, 2019
    Assignee: MITSUI CHEMICALS, INC.
    Inventors: Takashi Yukita, Haruka Sugita, Akira Hasegawa, Hideyuki Nagai, Yasufumi Tsuchiya
  • Patent number: D903122
    Type: Grant
    Filed: March 12, 2019
    Date of Patent: November 24, 2020
    Assignee: MITSUI CHEMICALS, INC.
    Inventors: Takashi Yukita, Haruka Sugita, Akira Hasegawa, Hideyuki Nagai, Yasufumi Tsuchiya
  • Patent number: D913504
    Type: Grant
    Filed: March 12, 2019
    Date of Patent: March 16, 2021
    Assignee: Mitsui Chemicals, Inc.
    Inventors: Takashi Yukita, Haruka Sugita, Akira Hasegawa, Hideyuki Nagai, Yasufumi Tsuchiya