Patents by Inventor Eiichi Nakamura

Eiichi Nakamura 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: 20100048934
    Abstract: The present invention provides a method for producing a fullerene derivative, comprising the organic group addition step B in which an organic group is further added by reacting at least a basic compound and a halogen compound with a fullerene derivative, which is obtained by addition of a hydrogen atom and an organic group in the organic group addition step A, in which an organic group is added by reacting at least a Grignard reagent and a polar substance with a fullerene or fullerene derivative.
    Type: Application
    Filed: November 6, 2007
    Publication date: February 25, 2010
    Applicant: JAPAN SCIENCE AND TECHNOLOGY AGENCY
    Inventors: Eiichi Nakamura, Yutaka Matsuo, Akihiko Iwashita
  • Publication number: 20090247777
    Abstract: The present invention provides a fullerene derivative represented by the following formula (1): wherein in formula (1), R1 is a substituted or unsubstituted organic group or a hydrogen atom, and wherein in formulae (2) and (3): W is a single bond, C1-C11, alkylene, C2-C12 alkenylene, or C2-C12 alkynylene, wherein any —CH2— in the alkylene, alkenylene or alkynylene can be substituted with —O—, —S—, —COO—, or —OCO—; Z is an element belonging to group IVB; and R21 to R23 are each independently a substituted or unsubstituted C1-C20 alkyl group, a substituted or unsubstituted C2-C15 alkenyl group, or a substituted or unsubstituted C2-C15 alkynyl group.
    Type: Application
    Filed: November 2, 2006
    Publication date: October 1, 2009
    Applicant: JAPAN SCIENCE AND TECHNOLOGY AGENCY
    Inventors: Eiichi Nakamura, Yutaka Matsuo, Yu-Wu Zhong, Ayako Muramatsu
  • Publication number: 20090194158
    Abstract: The present invention provides a photoelectric conversion material comprising a fullerene derivative represented by the formula C60(R1)5(R2), wherein each R1 independently represents an organic group having a substituent; and R2 represents a hydrogen atom or a substituted or unsubstitutedC1-C30 hydrocarbon group. Further, the present invention also provides a photoelectric conversion device having a self-assembled monomolecular film of the photoelectric conversion material, and a solar cell having the photoelectric conversion device.
    Type: Application
    Filed: May 2, 2007
    Publication date: August 6, 2009
    Applicant: JAPAN SCIENCE AND TECHNOLOGY AGENCY
    Inventors: Eiichi Nakamura, Yutaka Matsuo, Katsuhiko Kanaizuka
  • Patent number: 7547429
    Abstract: The present invention relates to a fullerene derivative having a partial structure represented by the general formula (I): wherein C1 to C8 are carbon atoms constituting a fullerene skeleton in which C6 to C8 are independently bonded to an organic group having 1 to 50 carbon atoms, and C1 is bonded to a substituted or unsubstituted alkyl group having 1 to 20 carbon atoms.
    Type: Grant
    Filed: May 27, 2004
    Date of Patent: June 16, 2009
    Assignees: Mitsubishi Chemical Corporation
    Inventors: Eiichi Nakamura, Yutaka Matsuo
  • Publication number: 20090118527
    Abstract: The present invention provides a method for producing a fullerene derivative comprising reacting: a serene; an organometallic reagent (A) comprising B, Al, Zn, Sn, Pb, Te, Ti, Mn, Zr or Sm; and a copper compound (B).
    Type: Application
    Filed: March 15, 2007
    Publication date: May 7, 2009
    Applicant: JAPAN SCIENCE AND TECHNOLOGY AGENCY
    Inventors: Eiichi Nakamura, Yutaka Matsuo, Takahiro Nakae
  • Publication number: 20090101200
    Abstract: The present invention provides a photoelectric conversion material comprising a fullerene derivative represented by the formula C60(R1)5(MLn), wherein: each R1 independently represents an organic group having a substituent; M represents a metal atom; L is a ligand of M; and n is the number of Ls. Further, the present invention also provides a photoelectric conversion device having a self-assembled monomolecular film of the photoelectric conversion material, and a solar cell having the photoelectric conversion device.
    Type: Application
    Filed: May 2, 2007
    Publication date: April 23, 2009
    Applicant: JAPAN SCIENCE AND TECHNOLOGY AGENCY
    Inventors: Eiichi Nakamura, Yutaka Matsuo, Katsuhiko Kanaizuka
  • Patent number: 7475748
    Abstract: An all terrain vehicle has a rear structure in which a exhaust duct extends rearward from a rear portion of a belt transmission and is detachably supported by a vehicle body frame, the exhaust duct is composed of a plurality of constituent members coupled to one another along an exhaust direction of the exhaust air flowing in the exhaust duct, the constituent members having a distance from one another are formed from a high rigidity material maintaining its own shape thereof, and the constituent members are detachably coupled to one another through a coupling member formed of an elastic material.
    Type: Grant
    Filed: July 14, 2005
    Date of Patent: January 13, 2009
    Assignee: Suzuki Kabushiki Kaisha
    Inventors: Eiichi Nakamura, Takuya Kusaka, Tetsuharu Nojiri
  • Publication number: 20080152593
    Abstract: A contrast agent characterized in that each of carbon nanohorns forming a carbon nanohorn aggregate has an opening at the side wall or tip, wherein a metal M (at least one metal selected from among paramagnetic metals, ferromagnetic metals, and superparamagnetic metals) or a compound of the metal M is incorporated in or dispersed on each of the carbon nanohorns. A contrast agent characterized in that it contains a Gd oxide. There is provided a contrast agent, which can be mass-produced easily, and satisfies the requirement of low toxicity and enables microscopic diagnoses when used for MRI. A contrast agent characterized in that is contains a carbon nanohorn aggregate.
    Type: Application
    Filed: December 21, 2005
    Publication date: June 26, 2008
    Applicants: Japan Science And Technology Agency, NEC Corporation
    Inventors: Sumio Iijima, Jin Miyawaki, Masako Yudasaka, Eiichi Nakamura, Hiroyuki Isobe, Hideki Yorimitsu, Hideto Imai
  • Patent number: 7347296
    Abstract: An all terrain vehicle for smoothly introducing an exhaust air from a radiator rearward and improving cooling performance for cooling respective members of the vehicle is provided with a front structure, in which a cooling fan is provided on a rear surface of the radiator so that a central portion of the cooling fan is offset from a center of the radiator toward a side opposite to a side on which the belt transmission is arranged, an exhaust pipe connected to a front portion of the cylinder assembly is provided to extend toward the side on which the belt transmission is arranged so that the exhaust pipe extends downward at a portion above the belt transmission, and the inlet duct is provided on the side on which the exhaust pipe is provided so as to vertically extend along the vehicle body frame provided vertically through a portion below the exhaust pipe.
    Type: Grant
    Filed: July 7, 2005
    Date of Patent: March 25, 2008
    Assignee: Suzuki Kabushiki Kaisha
    Inventors: Eiichi Nakamura, Takuya Kusaka
  • Publication number: 20070224120
    Abstract: This invention relates to novel 15O-labeled monosaccharide useful for positron emission tomography (PET) and producing method thereof.
    Type: Application
    Filed: March 28, 2005
    Publication date: September 27, 2007
    Applicant: Astellas Pharma Inc.
    Inventors: Eiichi Nakamura, Shintaro Nishimura, Yoshihiro Murakami, Hideki Yorimitsu
  • Publication number: 20070123734
    Abstract: A problem of the present invention is to provide an economical process with minimized toxicity for producing an aromatic compound having a variety of substituents such as various alkyl groups, and the problem is solved by a process for production of an aromatic compound represented by formula (1) below, which comprises reacting a compound represented by formula (2) below with an aromatic magnesium reagent represented by formula (3a) below in the presence of an iron catalyst and a diamine compound: wherein R is an optionally substituted hydrocarbon group or a C3-C10 saturated or unsaturated ring group; A is an optionally substituted C4-C20 aromatic group or an optionally substituted heteroaromatic group; X is a halogen atom or a sulfonic acid ester; and Y1 is bromine, iodine, chlorine or a carbanion ligand.
    Type: Application
    Filed: February 10, 2005
    Publication date: May 31, 2007
    Inventors: Masaharu Nakamura, Eiichi Nakamura, Keiko Matsuo, Shingo Ito
  • Patent number: 7202374
    Abstract: A metal complex contains at least one ligand, each having the form of a molecule of a fullerene derivative or an anion of the fullerene derivative, where the fullerene derivative, with a solubility in n-hexane of not lower that 0.1 mg/ml at 250° C., includes a fullerene skeleton and three or more organic groups attached to the fullerene skeleton, where each of the organic groups is represented by the general formula (III): —CH2—X(R2)(R3)(R4) ??(III) where X represents an element belonging to the group 14 in the periodic table; and R2, R3 and R4 may be the same or different and each represents a hydrogen atom, hydrocarbon group, alkoxy group or amino group.
    Type: Grant
    Filed: June 10, 2005
    Date of Patent: April 10, 2007
    Assignees: Mitsubishi Chemical Corporation
    Inventors: Eiichi Nakamura, Yutaka Matsuo
  • Patent number: 7018599
    Abstract: A novel means for DNA compaction is provided. The object is accomplished by providing a fullerene derivative having 1 to 4 nitrogen-containing hydrophilic side chain(s) or its salt for DNA compaction. DNA compaction can be achieved effectively, and application to gene therapy is also expected.
    Type: Grant
    Filed: May 17, 2004
    Date of Patent: March 28, 2006
    Assignee: Astellas Pharma Inc.
    Inventors: Eiichi Nakamura, Masaya Sawamura, Hiroyuki Isobe
  • Publication number: 20060011401
    Abstract: An all terrain vehicle has a rear structure in which a exhaust duct extends rearward from a rear portion of a belt transmission and is detachably supported by a vehicle body frame, the exhaust duct is composed of a plurality of constituent members coupled to one another along an exhaust direction of the exhaust air flowing in the exhaust duct, the constituent members having a distance from one another are formed from a high rigidity material maintaining its own shape thereof, and the constituent members are detachably coupled to one another through a coupling member formed of an elastic material.
    Type: Application
    Filed: July 14, 2005
    Publication date: January 19, 2006
    Applicant: SUZUKI KABUSHIKI KAISHA
    Inventors: Eiichi Nakamura, Takuya Kusaka, Tetsuharu Nojiri
  • Publication number: 20060006010
    Abstract: An all terrain vehicle for smoothly introducing an exhaust air from a radiator rearward and improving cooling performance for cooling respective members of the vehicle is provided with a front structure, in which a cooling fan is provided on a rear surface of the radiator so that a central portion of the cooling fan is offset from a center of the radiator toward a side opposite to a side on which the belt transmission is arranged, an exhaust pipe connected to a front portion of the cylinder assembly is provided to extend toward the side on which the belt transmission is arranged so that the exhaust pipe extends downward at a portion above the belt transmission, and the inlet duct is provided on the side on which the exhaust pipe is provided so as to vertically extend along the vehicle body frame provided vertically through a portion below the exhaust pipe.
    Type: Application
    Filed: July 7, 2005
    Publication date: January 12, 2006
    Applicant: SUZUKI KABUSHIKI KAISHA
    Inventors: Eiichi Nakamura, Takuya Kusaka
  • Patent number: 6969772
    Abstract: A fullerene derivative, with a solubility in n-hexane of not lower that 0.1 mg/ml at 25° C., includes a fullerene skeleton and three or more organic groups attached to the fullerene skeleton, where each of the organic groups is represented by the general formula (III): —CH2—X (R2)(R3)(R4)??(III) where X represents an element belonging to the group 14 in the periodic table; and R2, R3 and R4 may be the same or different and each represents a hydrogen atom, hydrocarbon group, alkoxy group or amino group.
    Type: Grant
    Filed: January 24, 2003
    Date of Patent: November 29, 2005
    Assignees: Mitsubishi Chemical Corporation
    Inventors: Eiichi Nakamura, Yutaka Matsuo
  • Publication number: 20050234252
    Abstract: A fullerene derivative, with a solubility in n-hexane of not lower that 0.1 mg/ml at 25° C., includes a fullerene skeleton and three or more organic groups attached to the fullerene skeleton, where each of the organic groups is represented by the general formula (III): CH2—X (R2)(R3)(R4)??(III) where X represents an element belonging to the group 14 in the periodic table; and R2, R3 and R4 may be the same or different and each represents a hydrogen atom, hydrocarbon group, alkoxy group or amino group.
    Type: Application
    Filed: June 10, 2005
    Publication date: October 20, 2005
    Applicants: MITSUBISHI CHEMICAL CORPORATION, Eiichi NAKAMURA
    Inventors: Eiichi Nakamura, Yutaka Matsuo
  • Patent number: 6855419
    Abstract: This invention attempts to provide a method for producing a DNA chip which can be accomplished in simple steps at a low cost, and wherein use of the resulting DNA chip reduces loss of probes and sample substances in the washing step enabling efficient use of such probe and sample. This invention also attempts to provide a DNA chip produced by such method. Accordingly, a method for producing a DNA chip comprising a substrate and a DNA-binding layer formed on the substrate wherein said DNA-binding layer is a diamond like film having a DNA-binding group is provided, and this method comprises the steps of: reducing pressure of a vacuum chamber to a predetermined degree of vacuum; feeding the chamber with a gas which is the source of said diamond like film; feeding the chamber with a gas which is the source of nitrogen; and forming the diamond like film having a DNA-binding group on the substrate by CVD. Also provided is the DNA chip produced by such method.
    Type: Grant
    Filed: May 16, 2002
    Date of Patent: February 15, 2005
    Assignee: Kishimoto Sangyo Co., Ltd.
    Inventors: Eiichi Nakamura, Kenichi Shibayama, Hiroshi Maruyama, Takashi Inoue
  • Publication number: 20050008558
    Abstract: The present invention relates to a fullerene derivative having a partial structure represented by the general formula (I): wherein C1 to C8 are carbon atoms constituting a fullerene skeleton in which C6 to C8 are independently bonded to an organic group having 1 to 50 carbon atoms, and C1 is bonded to a substituted or unsubstituted alkyl group having 1 to 20 carbon atoms.
    Type: Application
    Filed: May 27, 2004
    Publication date: January 13, 2005
    Applicants: Eiichi NAKAMURA, MITSUBISHI CHEMICAL CORPORATION
    Inventors: Eiichi Nakamura, Yutaka Matsuo
  • Patent number: 6828285
    Abstract: An oil composition for heat treatment of a gear which comprises mineral oil having a kinematic viscosity of 5 to 40 mm2/second at 100° C. as a base oil and, based on a total amount of the composition, 0.01 to 5% by weight of (a) a phosphoric acid ester compound and, where necessary, 0.5 to 10% by weight of (b) one compound selected from alkenylsuccinimide compounds, alkylsuccinimide compounds and addition products of boron with alkenylsuccinimide compounds or alkylsuccinimide compounds and 0.5 to 10% by weight of (c) at least one compound selected from salicylates, phenates and sulfonates of alkaline earth metals. A coating film is formed on the surface of a gear simultaneously with hardening of the gear and the gear can be provided with resistance to pitching.
    Type: Grant
    Filed: February 14, 2003
    Date of Patent: December 7, 2004
    Assignee: Idemitsu Kosan Co., Ltd.
    Inventor: Eiichi Nakamura