Patents by Inventor Yoshiaki Kobuke

Yoshiaki Kobuke 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: 7928222
    Abstract: Compounds described herein are suitable for use in three-dimensional optical recording materials, etc. The compounds each have a structure that allows pi-electron conjugation to be achieved by linking a porphyrin ring and a perinaphthothioindigo ring to each other with a straight-chain atomic group. The compounds are suitable for use in three-dimensional optical recording materials, etc. since they have a high two-photon absorption efficiency and undergo photochromism effectively through optical absorption. The compounds include those represented by the following formula (1): P1—[Y]—P2??(1) where P1 corresponds to a porphyrin ring; P2 corresponds to a perinaphthothioindigo ring a hydrogen atom, or a halogen atom; and Y is a group that links P1 and P2.
    Type: Grant
    Filed: January 4, 2007
    Date of Patent: April 19, 2011
    Assignee: National University Corporation Nara Institute of Science and Technology
    Inventors: Yoshiaki Kobuke, Kazuya Ogawa
  • Patent number: 7884281
    Abstract: A photoelectric transfer material, manufacturing method thereof, photoelectric transfer element and manufacturing method thereof are provided. In an organic photoelectric transfer element of an organic solar cell or other like device, the photoelectric transfer material is composed of a conductive polymer such as MEH-PPV, electronic acceptor such as a fullerene derivative and antenna porphyrin aggregate. The photoelectric transfer material can be made by coating a mixed solution of the conductive polymer, electron acceptor and antenna porphyrin aggregate by spin coating, for example. This photoelectric transfer material and a photoelectric transfer element using the material exhibit high photoelectric transfer efficiency because of small electric resistance and high sunlight usage efficiency, and simultaneously exhibit stability.
    Type: Grant
    Filed: January 11, 2005
    Date of Patent: February 8, 2011
    Assignee: Sony Corporation
    Inventors: Masashi Enomoto, Myung-Seok Choi, Yoshiaki Kobuke, Akiharu Satake
  • Patent number: 7767808
    Abstract: A porphyrin/phthalocyanine dimer represented by the following Formula (A-1) and a tetramer represented by the following Formula (A-2) (where R1, R2 and R3 may be the same or different, and each represents a hydrogen atom or an alkyl or alkyloxy group; M1 and M2 may be the same or different, and each represents two protons or a bivalent or trivalent metal ion; X1 represents a single bond or an alkylene group; X represents —O—, —S—, >NR101 (where R101 represents H or alkyl group), CH2, or a single bond; Y represents 2H, ?O or ?S; m is an integer of 0 to 4; Z represents a five- or six-membered nitrogen-containing coordinating heteroaromatic ring group; provided that the multiple substituent groups represented by the same character may be the same or different.
    Type: Grant
    Filed: May 30, 2006
    Date of Patent: August 3, 2010
    Assignee: National University Corporation Nara Institute of Science and Technology
    Inventors: Yoshiaki Kobuke, Akiharu Satake, Kazuya Ogawa
  • Publication number: 20070224529
    Abstract: Compounds that are suitable to be used for three-dimensional optical recording materials, etc. The compounds each have a structure that allows pi-electron conjugation to be achieved by linking a porphyrin ring and a perinaphthothioindigo ring to each other with a straight-chain atomic group. The compounds of the present invention are suitable to be used for three-dimensional optical recording materials, etc. since they have a high two-photon absorption efficiency and undergo photochromism effectively through optical absorption.
    Type: Application
    Filed: January 4, 2007
    Publication date: September 27, 2007
    Applicant: National University Corporation Nara Institute of Science and Technology
    Inventors: Yoshiaki Kobuke, Kazuya Ogawa
  • Patent number: 7192650
    Abstract: A photo-functional molecule element having, on a substrate, a porphyrin polymer containing covalently-fixed porphyrin units, and the method of preparing the same. The photo-functional molecule element may be used as a photoelectric conversion element such as an organic solar cell or a three-dimensional, non-linear organic material.
    Type: Grant
    Filed: February 27, 2004
    Date of Patent: March 20, 2007
    Assignee: Nara Institute of Science and Technology
    Inventors: Yoshiaki Kobuke, Akiharu Satake
  • Publication number: 20060217538
    Abstract: A porphyrin/phthalocyanine dimer represented by the following Formula (A-1) and a tetramer represented by the following Formula (A-2) (where R1, R2 and R3 may be the same or different, and each represents a hydrogen atom or an alkyl or alkyloxy group; M1 and M2 may be the same or different, and each represents two protons or a bivalent or trivalent metal ion; X1 represents a single bond or an alkylene group; X represents —O—, —S—, >NR101 (where R101 represents H or alkyl group), CH2, or a single bond; Y represents 2H, ?O or ?S; m is an integer of 0 to 4; Z represents a five- or six-membered nitrogen-containing coordinating heteroaromatic ring group; provided that the multiple substituent groups represented by the same character may be the same or different.
    Type: Application
    Filed: May 30, 2006
    Publication date: September 28, 2006
    Inventors: Yoshiaki Kobuke, Akiharu Satake, Kazuya Ogawa
  • Patent number: 7094866
    Abstract: A covalently linked linear porphyrin polymer represented by formula (1): wherein R represents an alkyl group or ?(wherein a, b and d independently represent H, an alkyl group or aryl group); X represents —O—, —S—, >NR101 (wherein R101 represents H or an alkyl group), —CH2— or a single bond; Y represents ?O, ?S, or 2H; m represents an integer of 0 to 4; n represents an integer of 0 to 6; Z represents a five- or six-membered, nitrogen-containing, coordinating hetero aromatic ring group; M represents an ion of metal selected from typical metals and transition metals; Q1 represents a single bond or a linear, divalent linking group; and p1 represents an integer of 2 or more.
    Type: Grant
    Filed: April 22, 2003
    Date of Patent: August 22, 2006
    Assignee: Nara Institute of Science and Technology
    Inventors: Yoshiaki Kobuke, Akiharu Satake
  • Patent number: 7022840
    Abstract: A porphyrin array exhibiting a large two-photon absorption property, and being linked with an acetylenic bond(s), represented by the following formulas: wherein R1 represents an alkyl or aryl group, M1 represents a metal ion capable of serving as a core metal and forming a coordinate bond with Im, M2 represents two protons or a metal ion incapable of forming a coordinate bond with Im, R2 and R3 represent a group selected from a porphyrin residue or porphyrin metal complex residue, a cyclic diimide residue, a dialkylviologen residue, a benzoquinone residue, an N-methylpyrrolidine-fullerene derivative residue and a ferrocene residue, Im is represented by Im1 or Im2: (R8 represents methyl or H), L1 represents —(—C?C—)m— (m=1 to 3); n represents an integer of 1 or more; R9 represents one of R1, R2, R3 and Im.
    Type: Grant
    Filed: November 19, 2003
    Date of Patent: April 4, 2006
    Assignee: Nara Institute of Science and Technology
    Inventors: Yoshiaki Kobuke, Kazuya Ogawa
  • Publication number: 20050211293
    Abstract: A photoelectric transfer material, manufacturing method thereof, photoelectric transfer element and manufacturing method thereof are provided. In an organic photoelectric transfer element of an organic solar cell or other like device, the photoelectric transfer material is composed of a conductive polymer such as MEH-PPV, electronic acceptor such as a fullerene derivative and antenna porphyrin aggregate. The photoelectric transfer material can be made by coating a mixed solution of the conductive polymer, electron acceptor and antenna porphyrin aggregate by spin coating, for example. This photoelectric transfer material and a photoelectric transfer element using the material exhibit high photoelectric transfer efficiency because of small electric resistance and high sunlight usage efficiency, and simultaneously exhibit stability.
    Type: Application
    Filed: January 11, 2005
    Publication date: September 29, 2005
    Inventors: Masashi Enomoto, Myung-Seok Choi, Yoshiaki Kobuke, Akiharu Satake
  • Publication number: 20040202876
    Abstract: A photo-functional molecule element having, on a substrate, a porphyrin polymer containing covalently-fixed porphyrin units, and the method of preparing the same. The photo-functional molecule element may be used as a photoelectric conversion element such as an organic solar cell or a three-dimensional, non-linear organic material.
    Type: Application
    Filed: February 27, 2004
    Publication date: October 14, 2004
    Inventors: Yoshiaki Kobuke, Akiharu Satake
  • Publication number: 20040106787
    Abstract: A porphyrin array exhibiting a large two-photon absorption property, and being linked with an acetylenic bond(s), represented by the following formulas: 1
    Type: Application
    Filed: November 19, 2003
    Publication date: June 3, 2004
    Inventors: Yoshiaki Kobuke, Kazuya Ogawa
  • Patent number: 6727358
    Abstract: A porphyrin array represented by the following general formula (1-1) or (1-2): wherein R1 represents an alkyl group or a substituted or unsubstituted aryl group; M1 represents a metal ion; R2 and R3 independently represent an electron acceptor or an electron donor; Im represents Im1 or Im2 set forth below: wherein R4 represents a hydrogen atom or a methyl group; and n represents an integer in the range of 1 to 100.
    Type: Grant
    Filed: August 30, 2002
    Date of Patent: April 27, 2004
    Assignee: Nara Institute of Science and Technology
    Inventors: Yoshiaki Kobuke, Kazuya Ogawa
  • Publication number: 20040072988
    Abstract: A covalently linked linear porphyrin polymer represented by formula (1): 1 2
    Type: Application
    Filed: April 22, 2003
    Publication date: April 15, 2004
    Inventors: Yoshiaki Kobuke, Akiharu Satake
  • Publication number: 20030187251
    Abstract: A porphyrin array represented by the following general formula (1-1) or (1-2): 1
    Type: Application
    Filed: August 30, 2002
    Publication date: October 2, 2003
    Inventors: Yoshiaki Kobuke, Kazuya Ogawa
  • Patent number: 6602998
    Abstract: A mercapto-substituted imidazolylporphyrin metal complex monomer represented by a general formula (1): wherein R1 represents a group selected from the group consisting of an alkyl group, unsubstituted aryl group, alkyl-substituted aryl group and alkyloxy-substituted aryl group, M represents a metal ion selected from the group consisting of Zn(II), Ga(III), Fe(II), Co(II), and Ru(II), X represents a divalent linking group containing at least one group selected from the group consisting of an arylene group and an alkylene group, R2 represents a hydrogen atom or an acetyl group, and Im represents Im1 or Im2 set forth below: wherein R3 represents a hydrogen atom or an alkyl group.
    Type: Grant
    Filed: March 12, 2001
    Date of Patent: August 5, 2003
    Assignee: Nara Institute of Science and Technology
    Inventors: Yoshiaki Kobuke, Kazuya Ogawa
  • Patent number: 6429310
    Abstract: A poly(porphyrin) represented by a general formula (I) below, which is useful as a molecular wire conducting photonic and electronic energy: where M is a metal ion selected from the group consisting of Zn, Ga, Ru, Fe and Co, R1 is a group selected from the group consisting of alkyl group, unsubstituted aryl group, alkyl-substituted aryl group, and alkyloxy-substituted aryl group, Im is represented by the following formula: where R2 denotes a hydrogen atom or a methyl group, and n is an integer of 1 or more, provided that the central metal ion represented by M may be coordinated or not coordinated to at least one of the porphyrin rings positioned at both ends of the general formula (I).
    Type: Grant
    Filed: January 24, 2001
    Date of Patent: August 6, 2002
    Assignee: Nara Institute of Science and Technology
    Inventors: Yoshiaki Kobuke, Kazuya Ogawa, Shin-ichi Kugimiya
  • Publication number: 20010027252
    Abstract: A mercapto-substituted imidazolylporphyrin metal complex monomer represented by a general formula (1): 1
    Type: Application
    Filed: March 12, 2001
    Publication date: October 4, 2001
    Inventors: Yoshiaki Kobuke, Kazuya Ogawa
  • Publication number: 20010018515
    Abstract: A poly(porphyrin) represented by a general formula (I) below, which is useful as molecular wire conducting photonic and electronic energy: 1
    Type: Application
    Filed: January 24, 2001
    Publication date: August 30, 2001
    Inventors: Yoshiaki Kobuke, Kazuya Ogawa, Shin-ichi Kugimiya
  • Patent number: 5463099
    Abstract: An extractant for selectively extracting strontium from an aqueous solution containing the same, which comprises a 1,2-benzenebis(1,4-dioxanonyl-6,8-dionato)metal complex of the following structural formula: ##STR1## wherein M represents a metal ion of Cu (II), Zn (II) or Ni (II).
    Type: Grant
    Filed: February 23, 1995
    Date of Patent: October 31, 1995
    Assignee: Doryokuro Kakunenryo Kaihatsu Jigyodan
    Inventors: Yoshiaki Kobuke, Akio Togashi, Masaki Ozawa, Masayuki Watanabe
  • Patent number: 4564690
    Abstract: A macrocyclic compound represented by the following general formula: ##STR1## and a process for preparing thereof which comprises reacting an .alpha.,.omega.-dihalogenated hydrocarbon and an active methylene compound with a base in a solvent to obtain a macrocyclic compound represented by the following general formula (II): ##STR2## and then inducing the functional group of Y.sup.1, Y.sup.3 and Y.sup.5 by means of a hydrolysis, oxidation or such, and an uranyl ion capturing agent comprising a polymer chemically bonded to a functional group in a macrocyclic compound and preparation thereof.
    Type: Grant
    Filed: December 6, 1982
    Date of Patent: January 14, 1986
    Assignee: Mitsubishi Chemical Industries Limited
    Inventors: Iwao Tabushi, Yoshiaki Kobuke