Patents by Inventor Makoto Sone

Makoto Sone 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).

  • Patent number: 11101592
    Abstract: A connector holding structure is provided with a plurality of connectors to be connected to a plurality of mating connectors arranged in an arrangement direction, a plurality of wires drawn out from the plurality of connectors, and a connector holding member including a plurality of connector mounting portions for respectively holding the plurality of connectors, the connector holding member collectively holding the plurality of connectors. The connector holding member includes a deflectable and deformable flexible portion between adjacent ones of the plurality of connector mounting portions.
    Type: Grant
    Filed: July 24, 2018
    Date of Patent: August 24, 2021
    Inventors: Kosuke Sone, Kaho Hayashi, Tetsuji Tanaka, Makoto Higashikozono, Keishi Kitamura, Yasuto Takeda, Takahiro Maruyama
  • Patent number: 6639030
    Abstract: A process for production of an olefin polymer is provided which comprises polymerization of ethylene and/or &agr;-olefin of three of more carbons at a polymerization temperature of not lower than 120° C. with a catalyst comprising a specific metallocene compound having a substituted fluorenyl group, and a compound which reacts with the metallocene compound to form a cationic metallocene compound. The olefin polymer or copolymer produced by the process has narrow composition distribution, narrow molecular weight distribution, and a high molecular weight.
    Type: Grant
    Filed: October 19, 1995
    Date of Patent: October 28, 2003
    Assignee: Tosoh Corporation
    Inventors: Makoto Sone, Saiki Hasegawa, Satoru Yamada, Akihiro Yano
  • Publication number: 20030073789
    Abstract: A process for production of an olefin polymer is provided which comprises polymerization of ethylene and/or &agr;-olefin of three of more carbons at a polymerization temperature of not lower than 120° C. with a catalyst comprising a specific metallocene compound having a substituted fluorenyl group, and a compound which reacts with the metallocene compound to form a cationic metallocene compound. The olefin polymer or copolymer produced by the process has narrow composition distribution, narrow molecular weight distribution, and a high molecular weight.
    Type: Application
    Filed: October 19, 1995
    Publication date: April 17, 2003
    Inventors: MAKOTO SONE, SAIKI HASEGAWA, SATORU YAMADA, AKIHIRO YANO
  • Patent number: 6313240
    Abstract: A process for producing an ethylene/&agr;-olefin copolymer is provided in which ethylene is copolymerized with an &agr;-olefin having three or more carbons by use of an olefin polymerization catalyst at a polymerization temperature of not lower than 120° C. The olefin polymerization catalyst comprises, as constitutional components, a) a metallocene compound comprising hafnium, b) an ionizing ionic compound, and c) an organoaluminum compound, the ionizing ionic compound (b) being a compound which is capable of changing the metallocene compound (a) into a cationic form and does not further react the cationic form of the metallocene compound.
    Type: Grant
    Filed: February 18, 1994
    Date of Patent: November 6, 2001
    Assignee: Tosoh Corporation
    Inventors: Saiki Hasegawa, Makoto Sone, Hisami Yasuda, Akihiro Yano
  • Patent number: 6207774
    Abstract: An ethylene/&agr;-olefin copolymer of a weight-average molecular weight of not less than 40000 is produced by copolymerization of ethylene with an &agr;-olefin having three or more carbons by use of an olefin polymerization catalyst at a polymerization temperature of not lower than 120° C., the olefin polymerization catalyst comprising, as constitutional components, a) a metallocene compound, b) an ionizing ionic compound, and c) an organoaluminum compound, the ionizing ionic compound (b) being a compound which is capable of changing the metallocene compound (a) into a cationic form and does not further react the cationic form of the metallocene compound. This process produces an ethylene/&agr;-olefin copolymer of high molecular weight in high efficiency.
    Type: Grant
    Filed: October 8, 1997
    Date of Patent: March 27, 2001
    Assignee: Tosoh Corporation
    Inventors: Saiki Hasegawa, Makoto Sone, Hisami Yasuda, Akihiro Yano
  • Patent number: 6121396
    Abstract: A catalyst for polymerization of an olefin is provided which comprises a metallocene compound having a specified substituted fluorenyl group, and a compound capable of reacting the metallocene compound to form a cationic metallocene compound. With this compound, a high-molecular olefin polymer having narrow composition distribution and narrow molecular-weight distribution can be obtained at a polymerization temperature of not lower than 120.degree. C.
    Type: Grant
    Filed: October 25, 1995
    Date of Patent: September 19, 2000
    Assignee: Tosoh Corporation
    Inventors: Makoto Sone, Saiki Hasegawa, Satoru Yamada, Akihiro Yano
  • Patent number: 5434116
    Abstract: A transition metal organometallic compound comprising a transition metal in any one of group 3A to group 8 of the periodic table and cyclic compounds containing a heteroaom in group 5 or group 5B of the periodic table and having a cyclic structure including a .pi.-bonded portion and composed of said heteroatom and said .pi.-bonded portion, wherein said transition metal has a bond of a .pi.-binding heterocylic ligand, said heteroatom and said .pi.-bonded portion and a catalyst for polymerizing olefin comprising the above organic metal compound and an organic compound.
    Type: Grant
    Filed: June 2, 1993
    Date of Patent: July 18, 1995
    Assignee: Tosoh Corporation
    Inventors: Makoto Sone, Akihiro Yano
  • Patent number: 5434115
    Abstract: Novel catalysts for polymerization of ethylene or .alpha.-olefins, comprising a metallocene, an organoaluminum compound an ionic compound, and a boron compound, or comprising an ionic metallocene, an organoaluminum compound and a boron compound. Process for polymerization of ethylene or .alpha.-olefins by use of the above catalysts.
    Type: Grant
    Filed: May 19, 1993
    Date of Patent: July 18, 1995
    Assignee: Tosoh Corporation
    Inventors: Satoru Yamada, Makoto Sone, Saiki Hasegawa, Akihiro Yano