Patents by Inventor Chizu Sekine
Chizu Sekine 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: 20100177264Abstract: Disclosed is a material having charge-transporting properties, which contains a neutral metal complex having a partial structure represented by the general formula (1) below and at least two multidentate ligands, or such a metal complex structure. (In the formula, M represents a transition metal or a lanthanoid; Ar1 and Ar2 independently represent an optionally substituted divalent aromatic ring; and X1 and X2 independently represent P(Ar3)(Ar4), S or O. In this connection, Ar3 and Ar4 independently represent an optionally substituted monovalent aromatic ring. The broken line in the formula represents a coordinate bond between a multidenate ligand and the metal.Type: ApplicationFiled: August 14, 2006Publication date: July 15, 2010Applicant: SUMITOMO CHECMICAL COMPANY, LIMITEDInventors: Taro Tsubomura, Chizu Sekine
-
Publication number: 20100133997Abstract: A polymer compound comprising at least one repeating unit selected from the group of repeating units shown by formula (1) or formula (2), wherein Ar1 to Ar4 represent an arylene group etc.; E1, E2, and E3 represent an aryl group (A) having three or more substituents, or a heterocyclic group (B) having one or more substituents, and the total number of substituents and hetero atoms of the heterocyclic ring is three or more; a and b represent 0 or 1, and 0<=a+b<=1, wherein Ar5 to Ar10 and Ar11 represent an arylene group etc.; E4 to E9 represent an aryl group or a monovalent heterocyclic group; l, m and n represent 0 to 2; o and p represent 0 or 1, and l+m+n+o+p is 2 or more.Type: ApplicationFiled: February 3, 2010Publication date: June 3, 2010Applicant: Sumitomo Chemical Company, LimitedInventors: Makoto KITANO, Yoshiaki Tsubata, Chizu Sekine, Jun Oguma, Katsumi Agata, Akihiro Ono, Akiko Nakazono
-
Publication number: 20100109517Abstract: A polymer compound comprising a constitutional unit of the formula (1), and a repeating unit of any of the formulae (2) to (4): (wherein, x3, y1, y2, z1 to z3 are 0 or 1. y3 represents an integer of 0 to 2. u represents an integer of 0 to 8. Z represents a pyrene residue, Ar1 represents an arylene group or di-valent heterocyclic group, and Ar2 represents an aryl group or mono-valent heterocyclic group.Type: ApplicationFiled: April 23, 2008Publication date: May 6, 2010Applicant: Sumitomo Chemical Company LimitedInventors: Daisuke Fukushima, Yoshiaki Tsubata, Chizu Sekine
-
Publication number: 20100033086Abstract: A polymer compound comprising as repeating units an optionally substituted fluorenediyl group and a phenylene group having one or more substituents, and comprising a repeating unit of the following formula (1) and/or a group of the following formula (2): (in the formula (1), Ar1 and Ar2 represent an arylene group or di-valent aromatic heterocyclic group, and Ar1 and may be the same or different.) (in the formula (2), Ar1 represents the same meaning as described above. Ar3 represents an aryl group or mono-valent aromatic heterocyclic group.).Type: ApplicationFiled: March 7, 2008Publication date: February 11, 2010Applicants: SUMITOMO CHEMICAL COMPANY, LIMITED, SUMATION CO., LTD.Inventors: Satoshi Mikami, Chizu Sekine
-
Publication number: 20090043064Abstract: A metal complex having a structure of the following general formula (1): (wherein, X1 and X2 represent independently a carbon atom or nitrogen atom. Bonds represented by X1C and X2N are a single bond or double bond. M represents a transition metal atom. A dihedral angle defined by a plane containing a structure represented by CX1—X2 and a plane containing a structure represented by X1—X2N is 9° to 16°, and the proportion of the sum of squares of orbital coefficients of the outermost d orbital of the metal atom M, in the highest occupied molecular orbital of the metal complex, occupying with respect to the sum of squares of all atom orbital coefficients, is divided by an energy difference S1?T1 between the lowest excitation singlet energy S1 and the lowest excitation triplet energy T1 of the metal complex, to give a value of 200 to 600%/eV.).Type: ApplicationFiled: February 21, 2007Publication date: February 12, 2009Applicants: SUMITOMO CHEMICAL COMPANY, LIMITED, SUMATION CO., LTD.Inventors: Nobuhiko Akino, Satoshi Mikami, Chizu Sekine
-
Patent number: 7452961Abstract: The present invention relates to a polymer film comprising a polymer having liquid crystallinity, having a number-average molecular weight in terms of polystyrene of 103 to 108 and having an electron mobility or hole mobility of 10?5 cm2/Vs or more, and having a film thickness in the range from 1 nm to 100 ?m. This polymer film can be used for various polymer film devices such as an organic transistor, organic solar battery, optical sensor, electrophotographic photoreceptor, spatial light modulator, photorefractive device and the like.Type: GrantFiled: July 8, 2003Date of Patent: November 18, 2008Assignee: Sumitomo Chemical Company, LimitedInventors: Masato Ueda, Chizu Sekine
-
Publication number: 20080265246Abstract: The present invention relates to a polymer film comprising a polymer having liquid crystallinity, having a number-average molecular weight in terms of polystyrene of 103 to 108 and having an electron mobility or hole mobility of 10?5 cm2/Vs or more, and having a film thickness in the range from 1 nm to 100 ?m. This polymer film can be used for various polymer film devices such as an organic transistor, organic solar battery, optical sensor, electrophotographic photoreceptor, spatial light modulator, photorefractive device and the like.Type: ApplicationFiled: June 16, 2008Publication date: October 30, 2008Applicant: SUMITOMO CHEMICAL COMPANY, LIMITEDInventors: Masato Ueda, Chizu Sekine
-
Publication number: 20080254320Abstract: This invention provides a luminescent composition comprising a polymer and at least one phosphorescent compound, characterized in that the electronic conjunction chain coefficient Ze of the main repeating minimum unit of the polymer falls within the following range: 0<Ze?2.00 (1) wherein the electronic conjunction chain coefficient Ze is defined as a slope obtained by linear approximation of function Tm=Tm(1/ne) by the least square method wherein ne represents the number of conjugated electrons contained in repeating minimum units; and Tm represents, for m-mer obtained by bonding repeating minimum units, the lowest triplet excitation energy in each m-mer when the number m is varied from 1 to 3 by one by one. Here in the number of conjugated electrons, only the conjugated electrons present in the main chain of the repeating minimum units are taken into consideration, provided that, when there are a plurality of main repeating minimum units, the minimum Ze is used.Type: ApplicationFiled: September 14, 2006Publication date: October 16, 2008Applicant: SUMITOMO CHEMICAL COMPANY, LIMITEDInventors: Nobuhiko Akino, Chizu Sekine, Satoshi Mikami, Tomoya Nakatani
-
Publication number: 20080248220Abstract: A light emitting material comprising a conjugated polymer compound (A) containing an aromatic ring in the main chain and a compound (B) showing light emission from the triplet excited state, wherein an energy difference between the vacuum level and the lowest unoccupied orbital (LUMO) level in the ground state, calculated by a computational chemical means, is 1.3 eV or more, or an energy difference between the vacuum level and the lowest unoccupied orbital (LUMO) level in the ground state, experimentally measured, is 2.2 eV or more, in the polymer compound (A), and either the following (Condition 1) or the following (Condition 2) or both of them are satisfied.Type: ApplicationFiled: September 10, 2004Publication date: October 9, 2008Inventors: Chizu Sekine, Nobuhiko Akino, Satoshi Mikami
-
Publication number: 20080139824Abstract: There are disclosed novel compounds, liquid crystal compositions, polymers, optically anisotropic products, and optical or liquid or liquid crystal elements that have large refractive index anisotropy, mix easily with other liquid crystals, have advantageous stability against light, and exhibit absorption at practically short wavelength in the ultraviolet region. The compounds are represented by the formula (1) and have a phenylacetylene structure, wherein difference ?E in energy of HOMO of parts (1-1), (1-2) and (1-3) calculated by the method of molecular orbitals is not less than 0.3 electronvolt, and the polarizability anisotropy ?? of a molecule represented by the formula (1) calculated in the same way is not lower than 500 A.U.: (A1 to A4: H, F, alkyl or alkoxy group of C1 to C10 optionally substituted with F; P1, P2; structure fulfilling the conditions of HOMO energy and polarizability).Type: ApplicationFiled: November 20, 2007Publication date: June 12, 2008Inventors: Chizu Sekine, Masamitsu Ishitobi, Koichi Fujisawa, Kazunori Iwakura, Masayoshi Minai
-
Publication number: 20080100199Abstract: Provided is a polymer material comprising a conjugated polymer and a dendrimer, which can give a light-emitting device excellent in practical utilities such as a capability of driving at lower voltage and the like when it is used for a light-emitting layer of a device.Type: ApplicationFiled: December 6, 2005Publication date: May 1, 2008Inventors: Chizu Sekine, Satoshi Mikami
-
Publication number: 20070103059Abstract: A composition comprising a polymer compound having a polystyrene reduced number-average molecular weight of 103-108, and a compound showing light-emission from triplet excited state, and said polymer compound comprises a repeating unit of the following formula (1); and a polymer complex compound having visible light-emission in the solid state, and including a repeating unit of the above formula (1), a repeating unit selected from the above formulas (12) and (13), and a metal complex structure showing light-emission from triplet excited state: wherein, Ring P and Ring Q represent an aromatic ring, Y represents —O—, —S—, etc.; Ar15 and Ar16 represent a trivalent aromatic hydrocarbon group or a trivalent heterocyclic group; R40 represents an alkyl group, etc.; X represents a single bond, etc.; Ar6, Ar7, Ar8, and Ar9 represent an arylene group, etc.; Ar10, Ar11, and Ar12 represent aryl group, etc.; and x and y each independently represent 0 or 1, and 0?x+y?1.Type: ApplicationFiled: May 14, 2004Publication date: May 10, 2007Applicant: SUMITOMO CHEMICAL COMPANY, LIMITEDInventors: Yoshiaki Tsubata, Satoshi Mikami, Chizu Sekine
-
Patent number: 7208567Abstract: Provided is a polymer compound having a polystyrene reduced number average molecular weight of 103-108, and comprising a repeating unit represented by the below formula (1-1) or (1-2), wherein Ring A, Ring B, Ring C, or Ring D each independently represent an aromatic ring, and X represents S or O. The compound is usable as a light-emitting material, a charge transporting material, etc.Type: GrantFiled: March 13, 2003Date of Patent: April 24, 2007Assignee: Sumitomo Chemical Company, LimitedInventors: Jun Oguma, Takahiro Ueoka, Yoshiaki Tsubata, Makoto Kitano, Chizu Sekine
-
Publication number: 20070057229Abstract: There are disclosed novel compounds, liquid crystal compositions, polymers, optically anisotropic prodrugs, and optical or liquid crystal elements that have large refractive index anisotropy, mix easily with other liquid crystals, have advantageous stability against light, and exhibit absorption at practically short wavelength in the ultraviolet region. The compounds are represented by the formula (1) and have a phenylacetylene structure, wherein difference ?E in energy of HOMO of parts (1-1), (1-2) and (1-3) calculated by the method of molecular orbitals is not less than 0.3 electronvolt, and the polarizability anisotropy ?? of a molecule represented by the formula (1) calculated in the same way is not lower than 500 A.U.: (A1 to A4: H, F, alkyl or alkoxy group of C1 to C10 optionally substituted with F; P1, P2: structure fulfilling the conditions of HOMO energy and polarizability).Type: ApplicationFiled: October 30, 2006Publication date: March 15, 2007Inventors: Chizu Sekine, Misamitsu Ishitobi, Koichi Fujisawa, Kazunori Iwakura, Masayoshi Minai
-
Publication number: 20070051922Abstract: A polymer light emitting material which contains a polymer compound comprising a repeating unit of the following formula (1) or (2) and having a polystyrene-reduced number-average molecular weight of 103 to 108, and which exhibits light emission from the triplet excited state. [wherein Ar1 and Ar2 each independently represent a trivalent aromatic hydrocarbon group or a trivalent heterocyclic group. X1 and X2 each independently represent O, S, C(?O), S(?O), SO2, C(R1)(R2), Si(R3)(R4), N(R5), B(R6), P(R7) or P(?O)(R8). X1 and Ar2 bond to adjacent carbon atoms in the aromatic ring of Ar1; and X2 and Ar1 bond to adjacent carbon atoms in the aromatic ring of Ar2]; [wherein Ar3 and Ar4 each independently represent a trivalent aromatic hydrocarbon group or a trivalent heterocyclic group. X3 and X4 each independently represent N, B, P, C(R9) or Si(R10). X3 and Ar4 bond to adjacent carbon atoms in the aromatic ring of Ar3; and X4 and Ar3 bond to adjacent carbon atoms in the aromatic ring of Ar4].Type: ApplicationFiled: September 28, 2004Publication date: March 8, 2007Inventors: Tomoya Nakatani, Chizu Sekine, Satoshi Mikami, Satoshi Kobayashi
-
Patent number: 7157154Abstract: A polymer characterized by comprising repeating units represented by the following formula (1) and having a number-average molecular weight, in terms of polystyrene, of 103 to 108. (In the formula, R1 represents hydrogen, alkyl, alkoxy, alkylthio, aryl, aryloxy, arylthio, arylalkyl, arylalkoxy, arylalkylthio, arylalkenyl, arylalkynyl, amino, substituted amino, silyl, substituted silyl, silyloxy, substituted silyloxy, monovalent heterocyclic group, or halogeno; and rings D and E each represents an optionally substituted aromatic ring.Type: GrantFiled: June 25, 2003Date of Patent: January 2, 2007Assignees: Sumitomo Chemical Company, Limited, Kansai Technology Licensing Organization,Co., Ltd.Inventors: Kohei Tamao, Shigehiro Yamaguchi, Makoto Kitano, Satoshi Kobayashi, Chizu Sekine
-
Patent number: 7135579Abstract: There are disclosed novel compounds, liquid crystal compositions, polymers, optically anisotropic producgs, and optical or liquid crystal elements that have large refractive index anisotropy, mix easily with other liquid crystals, have advantageous stability against light, and exhibit absorption at practically short wavelength in the ultraviolet region. The compounds are represented by the formula (1) and have a phenylacetylene structure, wherein difference ?E in energy of HOMO of parts (1-1), (1-2) and (1-3) calculated by the method of molecular orbitals is not less than 0.3 electronvolt, and the polarizability anisotropy ?? of a molecule represented by the formula (1) calculated in the same way is not lower than 500 A.U.: P1—H??(1-2) P2—H??(1-3) (A1 to A4: H, F, alkyl or alkoxy group of C1 to C10 optionally substituted with F; P1, P2: structure fulfilling the conditions of HOMO energy and polarizability).Type: GrantFiled: June 23, 2004Date of Patent: November 14, 2006Assignee: Sumitomo Chemical Company, LimitedInventors: Chizu Sekine, Masamitsu Ishitobi, Koichi Fujisawa, Kazunori Iwakura, Masayoshi Minai
-
Publication number: 20060043358Abstract: The present invention relates to a polymer film comprising a polymer having liquid crystallinity, having a number-average molecular weight in terms of polystyrene of 103 to 108 and having an electron mobility or hole mobility of 10?5 cm2/Vs or more, and having a film thickness in the range from 1 nm to 100 ?m. This polymer film can be used for various polymer film devices such as an organic transistor, organic solar battery, optical sensor, electrophotographic photoreceptor, spatial light modulator, photorefractive device and the like.Type: ApplicationFiled: July 8, 2003Publication date: March 2, 2006Inventors: Masato Ueda, Chizu Sekine
-
Publication number: 20050170202Abstract: A polymer characterized by comprising repeating units represented by the following formula (1) and having a number-average molecular weight, in terms of polystyrene, of 103 to 108. (In the formula, R1 represents hydrogen, alkyl, alkoxy, alkylthio, aryl, aryloxy, arylthio, arylalkyl, arylalkoxy, arylalkylthio, arylalkenyl, arylalkynyl, amino, substituted amino, silyl, substituted silyl, silyloxy, substituted silyloxy, monovalent heterocyclic group, or halogeno; and rings D and E each represents an optionally substituted aromatic ring.Type: ApplicationFiled: June 25, 2003Publication date: August 4, 2005Applicants: SUMITOMO CHEMICAL COMPANY, LIMITED, KANSAI TECHNOLOGY LICENSING ORGANIZATION CO., LTD.Inventors: Kohei Tamao, Shigehiro Yamaguchi, Makoto Kitano, Satoshi Kobayashi, Chizu Sekine
-
Publication number: 20050153167Abstract: A copolymer having two or more repeating units selected from the group consisting of arylene groups, divalent heterocyclic groups and divalent aromatic amine groups wherein the copolymer has, on at least one of molecular chain ends, a monovalent heterocyclic group, a monovalent group derived from a heterocyclic group coordinated metal complex, and an aromatic end group selected from aryl groups having a formula weight of 90 or more, and the copolymer shows fluorescence in the solid state and has a polystyrene-reduced weight-average molecular weight of 103 to 108.Type: ApplicationFiled: January 19, 2005Publication date: July 14, 2005Inventors: Tomoyuki Suzuki, Takanobu Noguchi, Chizu Sekine