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公开(公告)号：US20220133441A1
公开(公告)日：2022-05-05
申请号：US17573689
申请日：2022-01-12
Applicant: Mitsui Chemicals, Inc. , Takashima Sangyo Co., Ltd.
Inventor： Takashi YUKITA , Hideyuki NAGAI , Yasufumi TSUCHIYA , Daigo HAMA , Kohei YAZAKI , You SATO , Junji OOWA
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.
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公开(公告)号：US20200046466A1
公开(公告)日：2020-02-13
申请号：US16342649
申请日：2017-10-12
Applicant: Mitsui Chemicals, Inc. , Takashima Sangyo Co., Ltd.
Inventor： Takashi YUKITA , Hideyuki NAGAI , Yasufumi TSUCHIYA , Daigo HAMA , Kohei YAZAKI , You SATO , Junji OOWA
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.
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公开(公告)号：US20220409426A1
公开(公告)日：2022-12-29
申请号：US17787605
申请日：2020-12-22
Applicant: Mitsui Chemicals, Inc.
Inventor： Takashi YUKITA , Yuki IWABUCHI , Akira HASEGAWA
IPC: A61F5/56
Abstract: The present invention addresses the problem of providing: a mouthpiece having a shape that adequately conforms to the teeth rows, etc., of a user, the mouthpiece having an excellent feel during wearing; and a method for manufacturing the mouthpiece. A mouthpiece for solving the abovementioned problem includes a mouthpiece body part having a hard section, which has a groove for accommodating the teeth rows and/or the gums, and a soft section, which contains a material having a lower bending elasticity than that of the hard section. The proportion of the maximum thickness of the soft section to the minimum thickness of the soft section is 5 or greater.
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Patent Agency Ranking
公开(公告)号：US20230157861A1
公开(公告)日：2023-05-25
申请号：US17641121
申请日：2020-09-03
Applicant: Mitsui Chemicals, Inc.
Inventor： Takashi YUKITA , Yuki IWABUCHI , Akira HASEGAWA
IPC: A61F5/56
CPC classification number: A61F5/566
Abstract: The present invention addresses the problem of providing a mouthpiece that has an excellent fit and that is not prone to breakage or deformation. This mouthpiece for solving the above problem has: a pair of mouthpiece body parts configured from an upper-jaw mouthpiece body part mounted to the upper jaw, and a lower-jaw mouthpiece body part mounted to the lower jaw; a positioning member for restricting rearward displacement of the lower-jaw mouthpiece body part; and a support part that is disposed between the positioning member and the body parts and that supports the positioning member, so as to cover a portion of a surface that faces a surface of the upper-jaw mouthpiece body part and/or the lower-jaw mouthpiece body part that is mounted to a tooth row, the support part including a material that has a different flexural modulus than the mouthpiece body parts.
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公开(公告)号：US20200289309A1
公开(公告)日：2020-09-17
申请号：US16354224
申请日：2019-03-15
Applicant: Mitsui Chemicals, Inc.
Inventor： Takashi YUKITA , Yuki Iwabuchi , Akira HASEGAWA
IPC: A61F5/56
Abstract: An oral appliance may include a first jaw retainer piece, a second jaw retainer piece, a holding member, and a rod. The holding member may be mounted on a front-facing portion of the first jaw retainer piece, and have an opening for receiving a rod. The rod may have a leading end slidably inserted into the opening of the holding member and a trailing end mounted on a front-facing portion of the second jaw retainer piece. The oral appliance may further include a restrictor that restricts sliding of the rod relative to the holding member.
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公开(公告)号：US20190183670A1
公开(公告)日：2019-06-20
申请号：US16311303
申请日：2017-06-21
Applicant: Mitsui Chemicals, Inc.
Inventor： Hideyuki NAGAI , Takashi YUKITA , Maki YAMAMOTO , Yasufumi TSUCHIYA , Walid RAAD
IPC: A61F5/56
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.
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7.发明申请公开(公告)号：US20170275396A1
公开(公告)日：2017-09-28
申请号：US15509382
申请日：2015-09-10
Applicant: MITSUI CHEMICALS, INC.
Inventor： Ikuko EBISAWA , Masahiro YAMASHITA , Takashi YUKITA , Junichi MOHRI , Junpei TANAKA , Noriko KAI
CPC classification number: C08F10/08 , C08F4/022 , C08F4/6028 , C08F4/64003 , C08F4/6428 , C08F4/6592 , C08F10/02 , C08F210/06 , C08F210/08 , C08F2420/03 , C08F2800/10
Abstract: The purpose of the present invention is to provide a method for efficiently producing an olefin (co)polymer containing a constituent unit derived from 1-butene, the (co)polymer having a molecular weight that is sufficiently high even for high temperature conditions that are beneficial for industrial production methods. This purpose can be achieved by means of a method for producing an olefin (co)polymer containing a constituent unit derived from 1-butene, wherein at least 1-butene and, if necessary, an α-olefin having 2 or more carbon atoms (excluding 1-butene) and other monomers are (co)polymerized in the presence of an olefin polymerization catalyst that contains (A) a crosslinked metallocene compound represented by general formula [I] and (B) at least one type of compound selected from among (b-1) an organic aluminum oxy compound, (b-2) a compound that forms an ion pair upon a reaction with the crosslinked metallocene compound (A), and (b-3) an organic aluminum compound, at a polymerization temperature of 55-200° C. and a polymerization pressure of 0.1-5.0 MPaG.
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8.发明申请公开(公告)号：US20160039952A1
公开(公告)日：2016-02-11
申请号：US14773638
申请日：2014-03-11
Applicant: MITSUI CHEMICALS, INC.
Inventor： Ikuko EBISAWA , Hideo KITAGAWA , Takashi YUKITA , Masahiro YAMASHITA , Kouji TAKEDA , Hiromu KANEYOSHI
CPC classification number: C08F10/06 , C07F7/00 , C08F4/65912 , C08F4/65927 , C08F110/06 , C08F210/06 , C08F210/16 , C08F10/00
Abstract: To provide a method of efficiently affording olefin polymers having a high molecular weight and a high melting point even under industrially advantageous high-temperature conditions. A production method of an olefin polymer to solve the above problem includes polymerizing monomer(s) including at least one α-olefin having 3 or more carbon atoms at 50° C. to 200° C. in the presence of an olefin polymerization catalyst including; (A) a crosslinked metallocene compound represented by General Formula [I] below; and (B) at least one compound selected from (b-1) an organoaluminum oxy-compound, (b-2) a compound that forms an ion pair by reacting with the crosslinked metallocene compound (A), and (b-3) an organoalunimum compound.
Abstract translation: 提供即使在工业上有利的高温条件下也能有效地提供具有高分子量和高熔点的烯烃聚合物的方法。 为了解决上述问题，烯烃聚合物的制造方法包括在烯烃聚合催化剂的存在下，在50℃〜200℃下聚合包含至少一种碳原子数3以上的α-烯烃的单体，所述烯烃聚合催化剂包括 ; （A）下述通式[I]表示的交联金属茂化合物; 和（B）至少一种选自（b-1）有机铝氧化合物的化合物，（b-2）通过与交联的茂金属化合物（A）反应形成离子对的化合物和（b-3） 有机最合物。
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