Patents by Inventor Taichi Senda

Taichi Senda 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: 11933885
    Abstract: A radar signal imaging device 30 includes: a transmission unit 31 which transmits a radar signal toward an object to be imaged that is a non-rigid body; a position estimation unit 32 which estimates the position of the object; an oscillation degree estimation unit 33 which estimates an oscillation degree which is a degree of change within a predetermined period in the relative positions of feature points constituting the object; and a synthetic aperture processing unit 34 which performs synthetic aperture processing on the radar signal reflected by the object on the basis of the estimated position of the object and the estimated oscillation degree.
    Type: Grant
    Filed: June 6, 2018
    Date of Patent: March 19, 2024
    Assignee: NEC CORPORATION
    Inventors: Kazumine Ogura, Masayuki Ariyoshi, Yuzo Senda, Osamu Hoshuyama, Taichi Tanaka, Daisuke Ikefuji, Shingo Yamanouchi
  • Patent number: 9919300
    Abstract: Disclosed is transition metal complex that serves as a catalytic component with which 1-hexene can be produced efficiently with excellent selectivity, even under high temperature conditions, by means of an ethylene trimerization reaction. Said transition metal complex is represented by the following general formula (1), wherein M1 represents a Group 4 transition metal atom, and R1 through R11 and X1 through X3 each independently represent a hydrogen atom, a halogen atom, or a specific organic group.
    Type: Grant
    Filed: October 21, 2016
    Date of Patent: March 20, 2018
    Assignee: SUMITOMO CHEMICAL COMPANY, LIMITED
    Inventors: Yasutoyo Kawashima, Takahiro Hino, Taichi Senda, Masaya Tanimoto
  • Publication number: 20170036200
    Abstract: Disclosed is transition metal complex that serves as a catalytic component with which 1-hexene can be produced efficiently with excellent selectivity, even under high temperature conditions, by means of an ethylene trimerization reaction. Said transition metal complex is represented by the following general formula (1), wherein M1 represents a Group 4 transition metal atom, and R1 through R11 and X1 through X3 each independently represent a hydrogen atom, a halogen atom, or a specific organic group.
    Type: Application
    Filed: October 21, 2016
    Publication date: February 9, 2017
    Inventors: Yasutoyo KAWASHIMA, Takahiro HINO, Taichi SENDA, Masaya TANIMOTO
  • Patent number: 9090527
    Abstract: A silicon-bridged Cp-Ar transition metal complex serves as a catalytic component capable of efficiently and highly selectively producing 1-hexene through trimerization reaction of ethylene. The transition metal complex is represented by formula (1): wherein M represents a transition metal atom of Group 4 of the Periodic Table of the Elements; X1, X2, X3, R1, R2, R3, R4, R5, R6, R7, R8, and R9 each independently represent a hydrogen atom, a halogen atom, an alkyl group having 1 to 20 carbon atoms, an alkoxy group having 1 to 20 carbon atoms, an aryl group having 6 to 20 carbon atoms, an aryloxy group having 6 to 20 carbon atoms, an aralkyl group having 7 to 20 carbon atoms, and an aralkyloxy group having 7 to 20 carbon atoms, and wherein each of the groups may have a halogen atom as a substituent.
    Type: Grant
    Filed: March 29, 2012
    Date of Patent: July 28, 2015
    Assignee: Sumitomo Chemical Company, Limited
    Inventors: Taichi Senda, Masaya Tanimoto
  • Publication number: 20150105237
    Abstract: Disclosed is a catalytic component for trimerization containing a transition metal complex with which 1-hexene can be produced efficiently with excellent selectivity, even under high temperature conditions, by means of an ethylene trimerization reaction. Also disclosed is a trimerization catalyst that is obtained by bringing an olefin copolymerization catalyst and an activating co-catalytic component into contact with one another. Said transition metal complex is represented by the following general formula (1), wherein M1 represents a Group 4 transition metal atom, and R1 through R11 and X1 through X3 each independently represent a hydrogen atom, a halogen atom, or a specific organic group.
    Type: Application
    Filed: December 18, 2014
    Publication date: April 16, 2015
    Inventors: Yasutoyo KAWASHIMA, Takahiro HINO, Taichi SENDA, Masaya TANIMOTO
  • Publication number: 20150105572
    Abstract: Disclosed is transition metal complex that serves as a catalytic component with which 1-hexene can be produced efficiently with excellent selectivity, even under high temperature conditions, by means of an ethylene trimerization reaction. Said transition metal complex is represented by the following general formula (1), wherein M1 represents a Group 4 transition metal atom, and R1 through R11 and X1 through X3 each independently represent a hydrogen atom, a halogen atom, or a specific organic group.
    Type: Application
    Filed: December 18, 2014
    Publication date: April 16, 2015
    Inventors: Yasutoyo KAWASHIMA, Takahiro HINO, Taichi SENDA, Masaya TANIMOTO
  • Patent number: 8937195
    Abstract: A silicon-bridged Cp-Ar transition metal complex is provided that serves as a catalytic component capable of efficiently and highly selectively producing 1-hexene through the trimerization reaction of ethylene. The transition metal complex is represented by formula (1): wherein M1 represents a transition metal atom of Group 4 of the Periodic Table of the Elements; Ar1 is an aryl group represented by formula (2), Ar2 is an aryl group represented by formula (3) and Ar3 is an aryl group represented by formula (4) (not all of the three aryl groups Ar1, Ar2 and Ar3 are the same at the same time), Wherein each of the X and R groups represents hydrogen or the like.
    Type: Grant
    Filed: March 29, 2012
    Date of Patent: January 20, 2015
    Assignee: Sumitomo Chemical Company, Limited
    Inventors: Taichi Senda, Masaya Tanimoto, Hidenori Hanaoka
  • Publication number: 20140018564
    Abstract: A silicon-bridged Cp-Ar transition metal complex is provided that serves as a catalytic component capable of efficiently and highly selectively producing 1-hexene through the trimerization reaction of ethylene. The transition metal complex is represented by formula (1): wherein M1 represents a transition metal atom of Group 4 of the Periodic Table of the Elements; Ar1 is an aryl group represented by formula (2), Ar2 is an aryl group represented by formula (3) and Ar3 is an aryl group represented by formula (4) (not all of the three aryl groups Ar1, Ar2 and Ar3 are the same at the same time), Wherein each of the X and R groups represents hydrogen or the like.
    Type: Application
    Filed: March 29, 2012
    Publication date: January 16, 2014
    Applicant: Sumitomo Chemical Company, Limited
    Inventors: Taichi Senda, Masaya Tanimoto, Hidenori Hanaoka
  • Publication number: 20140018565
    Abstract: A silicon-bridged Cp-Ar transition metal complex serves as a catalytic component capable of efficiently and highly selectively producing 1-hexene through trimerization reaction of ethylene. The transition metal complex is represented by formula (1): wherein M represents a transition metal atom of Group 4 of the Periodic Table of the Elements; X1, X2, X3, R1, R2, R3, R4, R5, R6, R7, R8, and R9 each independently represent a hydrogen atom, a halogen atom, an alkyl group having 1 to 20 carbon atoms, an alkoxy group having 1 to 20 carbon atoms, an aryl group having 6 to 20 carbon atoms, an aryloxy group having 6 to 20 carbon atoms, an aralkyl group having 7 to 20 carbon atoms, and an aralkyloxy group having 7 to 20 carbon atoms, and wherein each of the groups may have a halogen atom as a substituent.
    Type: Application
    Filed: March 29, 2012
    Publication date: January 16, 2014
    Applicant: SUMITOMO CHEMICAL COMPANY, LIMITED
    Inventors: Taichi Senda, Masaya Tanimoto
  • Publication number: 20140012056
    Abstract: Disclosed is a method for producing 1-hexene that is capable of reducing the amount of by-product polymers when 1-hexene is produced through the trimerization reaction of ethylene. The method for producing 1-hexene comprises the following steps 1 and 2: step 1: the step of preparing a catalytic component by bringing a transition metal complex represented by any one of formulae (1-1) to (1-3) into contact with a specific organic aluminum compound in the absence of ethylene; and step 2: the step of trimerizing ethylene in the presence of a catalyst obtainable by bringing the catalytic component obtained in step 1 into contact with a specific boron compound.
    Type: Application
    Filed: March 29, 2012
    Publication date: January 9, 2014
    Applicant: SUMITOMO CHEMICAL COMPANY, LIMITED
    Inventors: Takayuki Hishiya, Takahiro Hino, Taichi Senda
  • Patent number: 8470947
    Abstract: Disclosed is an ethylenic polymer having a long characteristic relaxation time. The ethylenic polymer satisfies the following requirements: (a) the ethylenic polymer is a non-crosslinked ethylenic polymer; (b) the number of long-chain branches (LCB) per 1000 carbon atoms is 0.1-1.5 inclusive; (c) the intrinsic viscosity [?] is 1.0-3.0 dl/g inclusive; and (d) the ratio (G?/G?) of the storage modulus (G?) to the loss modulus (G?), determined by dynamic viscoelasticity measurement at 190° C. and at an angular frequency of 0.1 rad/sec is 0.8 or more and 4.0 or less.
    Type: Grant
    Filed: September 30, 2010
    Date of Patent: June 25, 2013
    Assignee: Sumitomo Chemical Company, Limited
    Inventors: Yasutoyo Kawashima, Takahiro Hino, Taichi Senda
  • Publication number: 20130005931
    Abstract: Disclosed is an ethylenic polymer having a long characteristic relaxation time. The ethylenic polymer satisfies the following requirements: (a) the ethylenic polymer is a non-crosslinked ethylenic polymer; (b) the number of long-chain branches (LCB) per 1000 carbon atoms is 0.1-1.5 inclusive; (c) the intrinsic viscosity [?] is 1.0-3.0 dl/g inclusive; and (d) the ratio (G?/G?) of the storage modulus (G?) to the loss modulus (G?), determined by dynamic viscoelasticity measurement at 190° C. and at an angular frequency of 0.1 rad/sec is 0.8 or more and 4.0 or less.
    Type: Application
    Filed: September 30, 2010
    Publication date: January 3, 2013
    Applicant: SUMITOMO CHEMICAL COMPANY, LIMITED
    Inventors: Yasutoyo Kawashima, Takahiro Hino, Taichi Senda
  • Publication number: 20120184431
    Abstract: Disclosed is transition metal complex that serves as a catalytic component with which 1-hexene can be produced efficiently with excellent selectivity, even under high temperature conditions, by means of an ethylene trimerization reaction. Also disclosed is a method for economically preparing a butyl-branched ethylene polymer, even under high temperature conditions, by using said transition metal complex as an ethylene trimerization catalyst, and polymerizing ethylene in the presence of an olefin polymerization catalyst that is obtained by bringing an olefin copolymerization catalyst and an activating co-catalytic component into contact with one another. Said transition metal complex is represented by the following general formula (1), wherein M1 represents a Group 4 transition metal atom, and R1 through R11 and X1 through X3 each independently represent a hydrogen atom, a halogen atom, or a specific organic group.
    Type: Application
    Filed: September 30, 2010
    Publication date: July 19, 2012
    Applicant: SUMITOMO CHEMICAL COMPANY, LIMITED
    Inventors: Yasutoyo Kawashima, Takahiro Hino, Taichi Senda, Masaya Tanimoto
  • Publication number: 20120184693
    Abstract: Disclosed is a method for preparing an ethylenic polymer with a low melting point in a more economical manner. In the ethylenic polymer preparation method, ethylene is polymerized under the presence of an olefin polymerization catalyst that is obtained by bringing an olefin polymerization catalytic component that comprises a transition metal complex represented by the following general formula (1), a trimerization catalytic component that comprises a transition metal complex represented by the following general formula (2), and an activating co-catalytic component into contact with each other.
    Type: Application
    Filed: September 30, 2010
    Publication date: July 19, 2012
    Applicant: SUMITOMO CHEMICAL COMPANY, LIMITED
    Inventors: Yasutoyo Kawashima, Takahiro Hino, Taichi Senda
  • Publication number: 20120172552
    Abstract: A transition metal ion complex represented by formula (1): wherein M represents a group-IV element of the periodic table, A represents a group-XIV element of the periodic table, D represents a group-XVI element of the periodic table, Cp represents a group having a cyclopentadienyl type anion skeleton, E represents a counter anion, R1-R6 represent a hydrogen atom, a halogen atom, an alkyl group, an aryl group, an aralkyl group, a silyl group substituted with a hydrocarbon, an alkoxy group, an aryloxy group, an aralkyl oxy group or an amino group substituted with hydrocarbon, and X1 represents an alkyl group, an aryl group or an aralkyl group.
    Type: Application
    Filed: March 13, 2012
    Publication date: July 5, 2012
    Inventors: Taichi SENDA, Hidenori Hanaoka
  • Patent number: 8084559
    Abstract: A transition metal complex represented by formula [1], and its production process; a substituent-carrying fluorene compound represented by formula [2], and its production process; an olefin polymerization catalyst component comprising the complex; an olefin polymerization catalyst obtained by contacting the catalyst component with a defined aluminum compound and/or a defined boron compound; and a production process of an olefin polymer using the catalyst:
    Type: Grant
    Filed: January 24, 2006
    Date of Patent: December 27, 2011
    Assignee: Sumitomo Chemical Company, Limited
    Inventors: Taichi Senda, Hidenori Hanaoka, Shinya Nakahara, Kenji Sogoh
  • Publication number: 20110118427
    Abstract: Disclosed are a transition metal complex represented by the formula (1) and a method for producing the same; a substituted fluorene compound represented by the formula (2) and a method for producing the same; an olefin polymerization catalyst including the transition metal complex as a constituent component; and a method for producing a polyolefin resin, which includes polymerizing an olefin in the presence of the olefin polymerization catalyst.
    Type: Application
    Filed: July 7, 2009
    Publication date: May 19, 2011
    Inventors: Takahiro Hino, Hidenori Hanaoka, Taichi Senda
  • Patent number: 7851569
    Abstract: A rare earth metal complex represented by the formula (1): in which A represents a Group 14 element of the periodic table, Cp represents a group having a substituted or unsubstituted cyclopentadienyl anion moiety, Ln represents a Group 3 metal atom or a lanthanoid metal atom, R1 to R6 are the same or different, and represent a hydrogen atom, a halogen atom, an alkyl group having 1 to 20 carbon atoms, an aryl group having 6 to 20 carbon atoms, an aralkyl group having 7 to 20 carbon atoms, a silyl group substituted with a hydrocarbon group having 1 to 20 carbon atoms, an alkoxy group having 1 to 20 carbon atoms, R7 represents an alkyl group having 1 to 20 carbon atoms, an aryl group having 6 to 20 carbon atoms, or an aralkyl group having 7 to 20 carbon atoms, Xs represent a monoanionic ligand, Ys represent a neutral ligand, m represents an integer of 1 to 3, and n represents an integer of 0 to 3. The rare earth metal complex is useful as, for example, a catalyst for polymerization reaction of olefins.
    Type: Grant
    Filed: July 5, 2007
    Date of Patent: December 14, 2010
    Assignee: Sumitomo Chemical Company, Limited
    Inventors: Taichi Senda, Hidenori Hanaoka
  • Publication number: 20100261857
    Abstract: An olefin/(meth)acrylate block copolymer in which a polyolefin segment obtained by polymerization of an olefin is covalently-bonded to a poly(meth)acrylate segment obtained by polymerization of a (meth)acrylate compound, and a morphology has a micro phase-separation structure.
    Type: Application
    Filed: September 12, 2008
    Publication date: October 14, 2010
    Applicant: SUMITOMO CHEMICAL COMPANY, LIMITED
    Inventors: Taichi Senda, Hidenori Hanaoka
  • Publication number: 20100204420
    Abstract: A transition metal ion complex represented by formula (1): wherein M represents a group-IV element of the periodic table, A represents a group-XIV element of the periodic table, D represents a group-XVI element of the periodic table, Cp represents a group having a cyclopentadienyl type anion skeleton, E represents a counter anion, R1-R6 represent a hydrogen atom, a halogen atom, an alkyl group, an aryl group, an aralkyl group, a silyl group substituted with a hydrocarbon, an alkoxy group, an aryloxy group, an aralkyl oxy group or an amino group substituted with hydrocarbon, and X1 represents an alkyl group, an aryl group or an aralkyl group.
    Type: Application
    Filed: September 16, 2008
    Publication date: August 12, 2010
    Applicant: Sumitomo Chemical Company, Limited
    Inventors: Taichi Senda, Hidenori Hanaoka