Polycyclo Ring System Patents (Class 564/426)
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Condensed eight-ring aromatic compound, and organic EL element and organic EL display using the same
Patent number: 6805977Abstract: The object of the present invention is to provide an organic EL element which utilizes a novel condensed eight-ring aromatic compound, and has high color purity of red light and excellent light-emitting efficiency, light-emitting luminance and the like. The organic EL element of the present invention has, in between a positive electrode and a negative electrode, an organic thin-film layer including a light-emitting layer. The organic thin-film layer contains the condensed eight-ring aromatic compound which has a number of regions where substituents can be introduced is any of 14, 16 and 18, and the condensed eight-ring aromatic compound has a point-symmetrical skeleton.Type: GrantFiled: March 25, 2002Date of Patent: October 19, 2004Assignee: Fujitsu LimitedInventors: Wataru Sotoyama, Hiroyuki Sato, Azuma Matsuura, Toshiaki Narusawa -
Publication number: 20040202603Abstract: Graphitic nanotubes, which includes tubular fullerenes (commonly called “buckytubes”) and fibrils, which are functionalized by chemical substitution or by adsorption of functional moieties. More specifically the invention relates to graphitic nanotubes which are uniformly or non-uniformly substituted with chemical moieties or upon which certain cyclic compounds are adsorbed and to complex structures comprised of such functionalized nanotubes linked to one another. The invention also relates to methods for introducing functional groups onto the surface of such nanotubes. The invention further relates to uses for functionalized nanotubes.Type: ApplicationFiled: April 30, 2004Publication date: October 14, 2004Applicant: Hyperion Catalysis International, Inc.Inventors: Alan Fischer, Robert Hoch, David Moy, Ming Lu, Mark Martin, Chun Ming Niu, Naoya Ogata, Howard Tennent, Liwen Dong, Ji Sun, Larry Helms, Fabian Jameison, Pam Liang, David Simpson
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Publication number: 20040191563Abstract: A novel aromatic compound represented by following general formula (I): 1Type: ApplicationFiled: January 23, 2004Publication date: September 30, 2004Inventors: Toshihiro Iwakuma, Takashi Arakane, Tadashi Kusumoto
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Patent number: 6783872Abstract: An organic EL element utilizes a dinaphthopyrene compound that has a high color purity of green light, excellent light-emitting efficiency, light-emitting luminance. The organic EL element has, in between a positive electrode and a negative electrode, an organic thin-film layer including a light-emitting layer. The organic thin-film layer contains the dinaphthopyrene compound comprising a structure expressed by the following structural formula: where R1 through R18 may be the same or may be different, and represent hydrogen atoms or substituents. At least one of R1 through R18 preferably is selected from aryl groups, arylamino groups and diarylamino groups.Type: GrantFiled: March 29, 2002Date of Patent: August 31, 2004Assignee: Fujitsu LimitedInventors: Wataru Sotoyama, Hiroyuki Sato, Azuma Matsuura, Toshiaki Narusawa
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Publication number: 20040137274Abstract: An organic light-emitting device comprising a light-emitting layer or a plurality of organic compound thin layers including a light-emitting layer formed between a pair of electrodes, wherein at least one layer comprises at least one kind of compound represented by the following formula (1): 1Type: ApplicationFiled: January 7, 2004Publication date: July 15, 2004Applicant: FUJI PHOTO FILM CO., LTD.Inventor: Tatsuya Igarashi
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Publication number: 20040106004Abstract: Spiro-type conjugated polymers having the following general formula 1Type: ApplicationFiled: December 3, 2002Publication date: June 3, 2004Applicant: Canon Kabushiki KaishaInventor: Xiao-Chang Charles Li
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Patent number: 6743948Abstract: Materials for organic electroluminescence devices are represented by following general formula [1]: wherein B represents a substituted or unsubstituted arylene group having 6 to 60 carbon atoms, X1 to X4 each independently represent a substituted or unsubstituted arylene group having 6 to 30 carbon atoms, X1 and X2 may be bonded to each other, X3 and X4 may be bonded to each other, Y1 to Y4 each independently represent an organic group represented by general formula [2], a to d each represent an integer of 0 to 2 and, when the arylene group represented by B has 26 or less carbon atoms, a+b+c+d>0 and at least one of the groups represented by B, X1, X2, X3 and X4 has a chrysene nucleus; general formula [2] being:Type: GrantFiled: August 25, 2000Date of Patent: June 1, 2004Assignee: Idemitsu Kosan Co., Ltd.Inventors: Chishio Hosokawa, Masakazu Funahashi, Hisayuki Kawamura, Hiromasa Arai, Hidetoshi Koga, Hidetsugu Ikeda
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Patent number: 6696178Abstract: An organic light-emitting device comprising a light-emitting layer or a plurality of organic compound thin layers including a light-emitting layer formed between a pair of electrodes, wherein at least one layer comprises at least one kind of compound represented by the following formula (1): wherein R11, R12 and R13 each represents a group having a cyclocondensed polycyclic hydrocarbon structure in which three or more rings are cyclocondensed; and a novel cyclocondensed polycyclic hydrocarbon compound.Type: GrantFiled: January 8, 2001Date of Patent: February 24, 2004Assignee: Fuji Photo Film Co., Ltd.Inventor: Tatsuya Igarashi
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Patent number: 6686065Abstract: Organic materials based on [5] helicenes or dibenzofluorenes are shown to have excellent properties for use in electroluminescent devices, including high stability and efficiency and low excimer formation. The materials may advantageously be adapted to have hole transport or electron transport capabilities in addition to emissive properties.Type: GrantFiled: December 12, 2001Date of Patent: February 3, 2004Assignee: Canon Kabushiki KaishaInventor: Jian Ping Chen
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Patent number: 6657084Abstract: A novel arylamine compound represented by the following general formula (1): wherein R1 and R2 each independently represent an alkyl group, an alkoxyl group, an aryl group, an arylalkyl group or an aryloxyl group, Ar1 to Ar4 each independently represent an aryl group or a heterocyclic group, with provisos that at least two of Ar1 to Ar4 each represent m-biphenyl group or a biphenyl group substituted with aryl groups and the others of Ar1 to Ar4 each represent biphenyl group and that, when the biphenyl group substituted with aryl groups is a biphenyl group substituted with two aryl groups, the others of Ar1 to Ar4 each represent an aryl group; and an organic electroluminescence device comprising a layer of organic compounds which comprises the novel arylamine compound. The organic electroluminescence device has a high luminance, excellent heat resistance and a long life and emits light at a high efficiency.Type: GrantFiled: July 12, 2002Date of Patent: December 2, 2003Assignee: Idemitsu Kosan Co., Ltd.Inventors: Chishio Hosokawa, Masakazu Funahashi
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Patent number: 6646164Abstract: A triphenylamine derivative represented by the following general formula (1): wherein R1, R2, R3, R4, R5 and R6 may be the same or different and each represents a hydrogen atom, alkyl group, halogenated alkyl group, aryl group, dialkylamino group or cyano group; and &phgr;1 and &phgr;2 may be the same or different and each represents an aromatic condensed ring which may have a substituent. Also disclosed is an electroluminescence device comprising the triphenylamine derivative.Type: GrantFiled: February 11, 2002Date of Patent: November 11, 2003Assignee: Sumitomo Electric Industries, Ltd.Inventors: Takashi Uemura, Nobuyuki Okuda, Yoshinobu Ueba
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Patent number: 6639102Abstract: Polyisocyanates of the diphenyl methane series having reduced color values are obtained by a) reacting aniline and formaldehyde in the presence of an acid catalyst to form a polyamine, b) neutralizing the reaction mixture containing polyamine with a base, c) separating the neutralized mixture into the aqueous and the organic phases, d) adding a base to the organic phase and then e) phosgenating the resulting polyamine to produce the corresponding polyisocyanate.Type: GrantFiled: March 10, 2003Date of Patent: October 28, 2003Assignee: Bayer AktiengesellschaftInventors: Torsten Hagen, Friedhelm Kämper, Daniel Koch, Rudolf Uchdorf, Stefan Wershofen
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Patent number: 6624201Abstract: The invention relates to high purity (1R,2S,4R)-(−)-2-[(2′-{N,N-dimethylamino}-ethoxy)]-2-[phenyl]-1,7,7-tri-[methyl]-bicyclo[2.2.1]heptane and pharmaceutically acceptable acid addition salts thereof containing not more than 0.2% of (1R,3S,4R)-3-[(2′-{N,N-dimethylamino}-ethyl)]-1,7,7-tri-[methyl]-bicyclo[2.2.1]heptane-2-one and/or of a pharmaceutically acceptable acid addition salt thereof. Furthermore the invention is concerned with a process for the preparation of these compounds. Moreover the invention relates to medicaments containing 1 or more of these compounds and their use.Type: GrantFiled: October 30, 2001Date of Patent: September 23, 2003Assignee: Orion CorporationInventors: Gyula Lukács, Gyula Simig, Tibor Mezei, Zoltán Budai, Márta Porcs-Makkay, György Krasznai, Kálmán Nagy, Györgyi Donáth Vereczkey, Tibor Szabó, Norbert Németh, János Szulágyi
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Publication number: 20030143422Abstract: Organic materials based on [5] helicenes or dibenzofluorenes are shown to have excellent properties for use in electroluminescent devices, including high stability and efficiency and low excimer formation. The materials may advantageously be adapted to have hole transport or electron transport capabilities in addition to emissive properties.Type: ApplicationFiled: December 12, 2001Publication date: July 31, 2003Inventor: Jian Ping Chen
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Patent number: 6593012Abstract: An organic electroluminescent device of the type comprises an organic layer 5, 5a or 5b having a luminescent region and provided between an anode 2 and a cathode 3. The organic layer contains a distyryl compound represented by the following general formula (1). General Formula (1): wherein R1, R2, R3 and R4 are, respectively, groups which may be the same or different and independently represent an aryl group of the following general formula (2). General Formula (2): in which R9, R10, R11, R12 and R13 may be the same or different and, respectively, represent a hydrogen atom provided that at least one of them is a saturated or unsaturated alkoxyl group or an alkyl group, and R5, R6, R7 and R8 may be the same or different and, respectively, represent a hydrogen atom provided that at least one of them represents a cyano group, a nitro group or a halogen atom.Type: GrantFiled: August 8, 2001Date of Patent: July 15, 2003Assignee: Sony CorporationInventors: Tadashi Ishibashi, Mari Ichimura, Shinichiro Tamura
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Publication number: 20030113579Abstract: Providing an organic EL element utilizing a novel dinaphthopyrene compound, having high color purity of green light, excellent light-emitting efficiency, light-emitting luminance. The organic EL element has, in between a positive electrode and a negative electrode, an organic thin-film layer including a light-emitting layer.Type: ApplicationFiled: March 29, 2002Publication date: June 19, 2003Applicant: FUJITSU LIMITEDInventors: Wataru Sotoyama, Hiroyuki Sato, Azuma Matsuura, Toshiaki Narusawa
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Condensed eight-ring aromatic compound, and organic EL element and organic EL display using the same
Publication number: 20030082404Abstract: The object of the present invention is to provide an organic EL element which utilizes a novel condensed eight-ring aromatic compound, and has high color purity of red light and excellent light-emitting efficiency, light-emitting luminance and the like. The organic EL element of the present invention has, in between a positive electrode and a negative electrode, an organic thin-film layer including a light-emitting layer. The organic thin-film layer contains the condensed eight-ring aromatic compound which has a number of regions where substituents can be introduced is any of 14, 16 and 18, and the condensed eight-ring aromatic compound has a point-symmetrical skeleton.Type: ApplicationFiled: March 25, 2002Publication date: May 1, 2003Applicant: FUJITSU LIMITEDInventors: Wataru Sotoyama, Hiroyuki Sato, Azuma Matsuura, Toshiaki Narusawa -
Patent number: 6555959Abstract: A material for a light emitting device which is a compound represented by the following formula (I): wherein Ar1 and Ar6, which are the same or different, each represents a divalent aryl group or a divalent heterocyclic group; R2, R3, R7 and R8, which are the same or different, each represents an aryl group, a heterocyclic group or an aliphatic hydrocarbon group; R4a, R5a, R9a and R10a, which are the same or different, each represents a hydrogen atom or a monovalent group, and at least one of R4a, R5a, R9a and R10a represents an electron withdrawing group having a Hammett's &sgr;p value of 0.Type: GrantFiled: September 29, 2000Date of Patent: April 29, 2003Assignee: Fuji Photo Film Co., Ltd.Inventor: Kazumi Nii
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Publication number: 20030072966Abstract: Materials for organic electroluminescence devices and organic electroluminescence devices which exhibit high efficiency of light emission and have a long life and excellent heat resistance, novel compounds and processes for producing the materials for organic electroluminescence devices are provided.Type: ApplicationFiled: June 26, 2002Publication date: April 17, 2003Applicant: Idemitsu Kosan Co., Ltd.Inventors: Chishio Hosokawa, Masakazu Funahashi, Hisayuki Kawamura, Hiromasa Arai, Hidetoshi Koga, Hidetsugu Ikeda
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Patent number: 6531632Abstract: Bis-o-aminophenols and o-aminophenolcarboxylic acids have the following structures: A1 to A7 are, independently of each other, H, F, CH3, CF3, OCH3 or OCF3. T is an aromatic or heterocyclic residue. A method for preparing bis-o-aminophenols and o-aminophenolcarboxylic acids is also provided.Type: GrantFiled: March 12, 2001Date of Patent: March 11, 2003Assignee: Infineon Technologies AGInventors: Jörg Haussmann, Gerhard Maier, Recai Sezi
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Publication number: 20030044640Abstract: Novel styryl compounds represented by the following general formulae (1) and (2): 1Type: ApplicationFiled: August 31, 2001Publication date: March 6, 2003Inventors: Masakazu Funahashi, Hiromasa Arai, Chishio Hosokawa
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Publication number: 20030031893Abstract: This invention relates to compositions and electroluminescent (EL) devices that have enhanced performance as a result of a mixture of isomeric aromatic amine (IAA) compounds. The mixture can be vacuum evaporated to form amorphous thin films.Type: ApplicationFiled: December 15, 2000Publication date: February 13, 2003Inventor: Shuang Xie
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Patent number: 6517957Abstract: An electroluminescent device is formed of a pair of electrodes and an organic compound layer interposed between the electrodes. The organic compound layer is composed of an organic compound represented by the following general formula (1): wherein X is a substituted or unsubstituted arylene group or a substituted or unsubstituted heterocyclic group, each of at least two groups among Ar1, Ar2, Ar3, and Ar4 is a substituted or unsubstituted fluorenyl group, and the remainder represents a substituted or unsubstituted aryl group.Type: GrantFiled: May 14, 1998Date of Patent: February 11, 2003Assignee: Canon Kabushiki KaishaInventors: Akihiro Senoo, Yomishi Toshida, Kazunori Ueno, Seiji Mashimo
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Publication number: 20020128514Abstract: A triphenylamine derivative represented by the following general formula (1): 1Type: ApplicationFiled: February 11, 2002Publication date: September 12, 2002Applicant: Sumitomo Electric Industries, Ltd.Inventors: Takashi Uemura, Nobuyuki Okuda, Yoshinobu Ueba
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Publication number: 20020128478Abstract: This invention relates to a process for the Heck coupling reaction where heterogeneous palladium catalysts are used to activate aryl halides for a carbon-carbon coupling with olefins in the presence a base and an aprotic solvent to produce aryl-olefin compounds. The process, in particular, provides for the use of aryl chlorides substituted with electron-withdrawing or electron-donating group for the cross coupling with olefins.Type: ApplicationFiled: March 4, 2002Publication date: September 12, 2002Inventors: Shane W. Krska, Thorsten S. Rosner, Yongkui Sun
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Patent number: 6329084Abstract: Compounds for organic EL devices which emit light of red, have a high light emission brightness and have a long lifetime of light emission, and organic EL devices using the above compounds, the light-emitting materials being compounds of the formula [1], wherein each of Ar3 to Ar10 is independently a substituted or non-substituted aromatic monocyclic group, a substituted or non-substituted fused polycyclic group or a substituted or non-substituted aromatic heterocyclic group, provided that Ar3 and Ar4 may integrally bond to each other, that Ar5 and Ar6 may integrally bond to each other, that Ar7 and Ar8 may integrally bond to each other, and that Ar9 and Ar10 may integrally bond to each other.Type: GrantFiled: June 15, 1999Date of Patent: December 11, 2001Assignee: Toyo Ink Mfg. Co., Ltd.Inventors: Michiko Tamano, Shinichiro Maki
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Patent number: 6312838Abstract: An organic electroluminescent device of the type comprises an organic layer 5, 5a or 5b having a luminescent region and provided between an anode 2 and a cathode 3. The organic layer contains a distyryl compound represented by the following general formula (1). Chemical Formula 1 general formula (1): wherein R1, R2, R3 and R4 are, respectively, groups which may be the same or different and independently represent an aryl group of the following general formula (2). general formula (2): in which R9, R10, R11, R12 and R13 may be the same or different and, respectively, represent a hydrogen atom provided that at least one of them is a saturated or unsaturated alkoxyl group or an alkyl group, and R5, R6, R7 and R8 may be the same or different and, respectively, represent a hydrogen atom provided that at least one of them represents a cyano group, a nitro group or a halogen atom.Type: GrantFiled: May 17, 1999Date of Patent: November 6, 2001Assignee: Sony CorporationInventors: Tadashi Ishibashi, Mari Ichimura, Shinichiro Tamura
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Publication number: 20010008711Abstract: An organic light-emitting device comprising a light-emitting layer or a plurality of organic compound thin layers including a light-emitting layer formed between a pair of electrodes, wherein at least one layer comprises at least one kind of compound represented by the following formula (1): 1Type: ApplicationFiled: January 8, 2001Publication date: July 19, 2001Inventor: Tatsuya Igarashi
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Patent number: 6215008Abstract: Fluorescent dyes which fluoresce a variety of colors are prepared from substituted isoviolanthrone and substituted isoviolanthrone by reductive alkylation with alkyl halides in the presence of zinc.Type: GrantFiled: December 3, 1999Date of Patent: April 10, 2001Assignee: Rohm and Haas CompanyInventor: Peter J. Heffron
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Patent number: 6166234Abstract: Novel tripodal cyclopentadiene derivatives have the formula (I) ##STR1## where E are identical or different and are --N(R)(R), --P(R)(R), --As(R)(R), --Sb(R)(R), --OR, --SR, --SeR, --TeR, where R are identical or different and are each hydrogen, a C.sub.1 -C.sub.20 -carboorganic radical or a C.sub.1 -C.sub.30 -organosilicon radical, or E is a leaving group X andR.sup.1, R.sup.2, R.sup.3, R.sup.4, R.sup.5, R.sup.6 are identical or different and are each hydrogen, a C.sub.1 -C.sub.20 -carboorganic radical or a C.sub.1 -C.sub.30 -organosilicon radical,Z is a cyclopentadienyl radical or a substituted cyclopentadienyl structural unit andT is hydrogen, a C.sub.1 -C.sub.20 -carboorganic radical or a C.sub.1 -C.sub.30 -organosilicon radical or a group E--Y--, where E is --N(R)(R), --P(R)(R), --As(R)(R), --Sb(R)(R), --OR, --SR, --SeR, --TeR or a leaving group X, where R are identical or different and are each hydrogen, a C.sub.1 -C.sub.20 -carboorganic radical or a C.sub.1 -C.sub.Type: GrantFiled: January 13, 1998Date of Patent: December 26, 2000Assignee: BASF AktiengesellschaftInventors: Gottfried Huttner, Joachim Vogelgesang, Ute Winterhalter, Bjorn Antelmann
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Patent number: 6084132Abstract: Fluorescent dyes which fluoresce in a variety of colors are produced from substituted and un-substituted 6-ring and 8-ring aromatic diketones by reductive alkylation with alkyl halides in the presence of zinc.Type: GrantFiled: December 3, 1999Date of Patent: July 4, 2000Assignee: Rohm and Haas CompanyInventor: Peter J. Heffron
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Patent number: 5840984Abstract: Odor formation during storage of (hydrocarbylthio)aromatic amines due to formation and release of odoriferous sulfur-containing species such as dihydrocarbyldisulfides, is suppressed. To accomplish this, a small amount of N,N-dihydrocarbylhydroxylamine odor-inhibitor (e.g., N,N-diethylhydroxylamine) is blended with the (hydrocarbylthio)aromatic amine. This enables products such as a mixture of 3,5-di(methylthio)-2,4-diaminotoluene and 3,5-di(methylthio)-2,6-diaminotoluene) to be stored for long periods of time with significantly reduced formation and release of odoriferous sulfur-containing species.Type: GrantFiled: June 23, 1997Date of Patent: November 24, 1998Assignee: Albemarle CorporationInventors: Gregory H. Lambeth, Paul L. Wiggins, William R. Brown
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Patent number: 5840980Abstract: A diamine compound of the following formula (1): ##STR1## wherein R.sub.1 is a hydrogen atom, a lower alkyl group or a lower alkoxy group, each of A.sub.1, A.sub.2 and A.sub.3 which are independent of one another, is a substituted or unsubstituted alkyl group, a substituted or unsubstituted aryl group, or a group of the following formula (2): ##STR2## wherein R.sub.1 is as defined above, and X is a substituted or unsubstituted arylene group or a substituted or unsubstituted heterocyclic bivalent group.Type: GrantFiled: July 24, 1997Date of Patent: November 24, 1998Assignee: Hodogaya Chemical Co., Ltd.Inventors: Mitsutoshi Anzai, Atsushi Takesue, Takanobu Watanabe, Chieko Inayoshi
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Patent number: 5834521Abstract: Tetracyclic compounds having the following structure are described: ##STR1## wherein R.sub.1 -R.sub.10 are as defined. The tetracyclic compounds are capable of potent effects on steroid sensitive tissues and have demonstrated increased uterine weight, antiovulatory effects and potent steroid receptor binding. The compounds have therapeutic utility in reproductive applications such as fertility control, labor induction, ovulation induction and spermatogenesis. Methods for preparing the tetracyclic compounds from substituted indanones are also described.Type: GrantFiled: August 5, 1996Date of Patent: November 10, 1998Assignee: Ortho Pharmaceutical CorporationInventors: John H. Dodd, Lisa A. Dixon, James L. Bullington, Charles F. Schwender
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Patent number: 5808155Abstract: An electrophotographic photoconductor having an electroconductive support and a photoconductive layer formed thereon containing as a photoconductive material at least one carbonate compound of formula (I): ##STR1## wherein R.sup.1 and R.sup.2 each is hydrogen, an alkyl group which may have a substituent, an aryl group which may have a substituent, or a condensed polycyclic group; Y is a bivalent arylene group which may have a substituent, ##STR2## in which Ar.sup.1 and Ar.sup.2 each is an arylene group which may have a substituent, R.sup.3 and R.sup.4 each is hydrogen, an alkyl group which may have a substituent or an aryl group which may have a substituent, and l is an integer of 1 or 2; and R.sup.1 and R.sup.2, or R.sup.1 and Y may independently form a ring; X is an alkyl group which may have a substituent or an aryl group which may have a substituent; m is an integer or 0 or 1; and n is an integer of 0 to 6.Type: GrantFiled: March 6, 1997Date of Patent: September 15, 1998Assignee: Ricoh Company, Ltd.Inventors: Tomoyuki Shimada, Masaomi Sasaki, Chiaki Tanaka
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Patent number: 5770675Abstract: Disclosed herein are cyclic oligomers comprising substituted or unsubstituted m-phenylene isophthalamide, complexes of these oligomers with selected metal salts, novel methods for their preparation, and polymerization of the cyclic oligomers to linear aramids. The aramids are useful, for example, as fibers for fire resistant clothing. Amino-finctional cyclic oligomers may be reacted with polyfunctional acyl halides to produce polyamides.Type: GrantFiled: June 18, 1996Date of Patent: June 23, 1998Assignee: E. I. du Pont de Nemours and CompanyInventors: Young Hwan Kim, Wesley Memeger, Jr.
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Patent number: 5750789Abstract: An unsaturated imide compound represented by formula (1): ##STR1## wherein Q is an alicyclic structure-containing hydrocarbon group having 4-20 carbon atoms; each of R.sub.1, R.sub.2, R.sub.3, R.sub.4, R.sub.i and R.sub.j represents a hydrogen atom, a halogen atom, a hydrocarbon group having 1-6 carbon atoms or a halogen-containing hydrocarbon group having 1-6 carbon atoms; each of a, b, c, d, e and f represents an integer of 0 to 4 satisfying a+b.ltoreq.4, c+d.ltoreq.4 and e+f.ltoreq.4 and D represents a divalent organic group having 2-24 carbon atoms and an ethylenically unsaturated double bond, a process for producing the unsaturated imide compound of formula (1) and intermediates for producing the unsaturated imide compound of formula (1). The unsaturated imide compound of formula (1) is well soluble in organic solvents and can give cured products excellent in heat resistance, low water absorption and flexibility.Type: GrantFiled: September 29, 1995Date of Patent: May 12, 1998Assignee: Sumitomo Chemical Company LimitedInventors: Yasuhiro Hirano, Yasuhiro Endo, Kazuo Takebe, Mitsuhiro Shibata, Shuichi Kanagawa, Yutaka Shiomi, Masatsugu Akiba, Shinichiro Kitayama
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Patent number: 5672756Abstract: An electrophotographic photoconductor includes an electroconductive substrate, and a photoconductive layer formed thereon containing at least one tertiary amine compound of formula (I) as an effective component: ##STR1## wherein Ar.sup.1 and Ar.sup.3 each is an aryl group which may have a substituent; Ar.sup.2 is a bivalent group of a carboxylic aromatic compound or a bivalent group of a heterocyclic compound; R.sup.1 is a hydrogen atom, an alkyl group which may have a substituent or an alkoxy group which may have a substituent; and R.sup.2 is a hydrogen atom, an alkyl group which may have a substituent or an aryl group which may have a substituent. A novel triphenylamine compound for use in the electrophotographic photoconductor is provided.Type: GrantFiled: July 25, 1996Date of Patent: September 30, 1997Assignees: Ricoh Company, Ltd., Hodogaya Chemical Co., Ltd.Inventors: Tomoyuki Shimada, Masaomi Sasaki, Tamotsu Aruga, Masafumi Ohta, Mitsutoshi Anzai, Akihiro Imai
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Patent number: 5663180Abstract: A class of 1,2-diarylcyclopentenyl compounds is described for use in treating inflammation and inflammation-related disorders. Compounds of particular interest are defined by Formula III: ##STR1## wherein each of R.sup.1 and R.sup.2 is independently selected from alkyl, hydrido, hydroxyalkyl, halo, haloalkyl, alkoxycarbonyl and carboxyl; wherein R.sup.5 is selected from alkylsulfonyl, haloalkylsulfonyl and sulfamyl; and wherein B is phenyl or pyridyl, wherein B is optionally substituted at a substitutable position with alkyl, halo, alkylthio, cyano, haloalkyl, alkoxy, hydroxyalkyl and alkoxyalkyl; or a pharmaceutically-acceptable salt thereof.Type: GrantFiled: July 15, 1994Date of Patent: September 2, 1997Assignee: G.D. Searle & Co.Inventors: David B. Reitz, Jinglin Li
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Patent number: 5654481Abstract: There is provided an amine compound represented by formula (1): ##STR1## wherein Ar.sub.1 represents a substituted or unsubstituted aryl group; Ar.sub.2 represents a substituted or unsubstituted phenylene group, a substituted or unsubstituted naphthylene group, a substituted or unsubstituted biphenylene group or a substituted or unsubstituted anthrylene group; R.sub.1 represents a hydrogen atom, a lower alkyl group or a lower alkoxy group; X represents a hydrogen atom, a substituted or unsubstituted alkyl group, or a substituted or unsubstituted aryl group; and Y represents a substituted or unsubstituted aryl group, or a group represented by formula (2) or (3) described in the specification.Type: GrantFiled: October 31, 1995Date of Patent: August 5, 1997Assignee: Hodogaya Chemical Co., Ltd.Inventors: Mitsutoshi Anzai, Atsushi Takesue, Takanobu Watanabe, Chieko Inayoshi
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Patent number: 5631404Abstract: An electrophotographic photoconductor includes an electroconductive support and a photoconductive layer formed thereon containing a diamine compound represented by formula (I): ##STR1## wherein R.sup.1, R.sup.2, and R.sup.3 each is independently a substituted or unsubstituted alkyl group or aryl group; R.sup.4 is hydrogen, an alkyl group or an alkoxyl group; n is an integer of 1 to 3; and ##STR2## is a substituted or unsubstituted bivalent arylene group or a bivalent heterocyclic group. This diamine compound is useful as a photoconductive material for electrophotographic photoconductors.Type: GrantFiled: June 1, 1995Date of Patent: May 20, 1997Assignees: Ricoh Company, Ltd., Hodogaya Chemical Co., Ltd.Inventors: Mitsutoshi Anzai, Yasuo Murakami, Atsushi Takesue, Masaomi Sasaki, Tomoyuki Shimada, Tamotsu Aruga, Masafumi Ohta
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Patent number: 5616805Abstract: A pyrenylamine derivative having an unsaturated bond formula (I), which can be employed as an organic photoconductive material for use in electrophotography: ##STR1## wherein R.sup.1, R.sup.2, R.sup.3, R.sup.4, R.sup.5, W, l, m, n, j and k are specifically defined in the specification, an aldehyde compound of formula (II), which is an intermediate for preparing the pyrenylamine derivative: ##STR2## and methods of producing the pyrenylamine derivative and the aldehyde compound are disclosed.Type: GrantFiled: May 11, 1995Date of Patent: April 1, 1997Assignee: Ricoh Company, Ltd.Inventors: Chiaki Tanaka, Masaomi Sasaki, Tamotsu Aruga, Tomoyuki Shimada, Hiroshi Adachi
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Patent number: 5599995Abstract: An electrophotographic photoconductor comprises an electroconductive substrate and a photoconductive layer formed thereon comprising as an effective component at least one pyrenylamine derivative of formula (I): ##STR1## wherein R.sup.1, R.sup.2, R.sup.3, R.sup.4, R.sup.5, W, j, k, l, m and n are specifically defined in the specification. Furthermore, a novel pyrenylamine derivative for use in the above electrophotographic photoconductor, an aldehyde compound, which is an intermediate for producing the pyrenylamine derivative, and methods of preparing the pyrenylamine derivative and the aldehyde compound are disclosed.Type: GrantFiled: June 5, 1995Date of Patent: February 4, 1997Assignee: Ricoh Company, Ltd.Inventors: Chiaki Tanaka, Masaomi Sasaki, Tamotsu Aruga, Tomoyuki Shimada, Hiroshi Adachi
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Patent number: 5587516Abstract: An electrophotographic photoconductor comprises an electroconductive substrate and a photoconductive layer formed thereon comprising as an effective component at least one pyrenylamine derivative of formula (I): ##STR1## wherein R.sup.1, R.sup.2, R.sup.3, R.sup.4, R.sup.5, W, j, k, l, m and n are specifically defined in the specification. Furthermore, a novel pyrenylamine derivative for use in the above electrophotographic photoconductor, an aldehyde compound, which is an intermediate for producing the pyrenylamine derivative, and methods of preparing the pyrenylamine derivative and the aldehyde compound are disclosed.Type: GrantFiled: June 5, 1995Date of Patent: December 24, 1996Assignee: Ricoh Company, Ltd.Inventors: Chiaki Tanaka, Masaomi Sasaki, Tamotsu Aruga, Tomoyuki Shimada, Hiroshi Adachi
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Patent number: 5550293Abstract: An electrophotographic photoconductor comprising an electroconductive support, and a photoconductive layer formed thereon comprising at least one tertiary amine compound having a condensed polycyclic hydrocarbon group of formula (I): ##STR1## wherein A.sup.1 and A.sup.2 each independently represent an unsubstituted or substituted alkyl group or aryl group, and Ar represents an unsubstituted or substituted condensed polycyclic hydrocarbon group. Furthermore, novel tertiary amine compounds having a condensed polycyclic hydrocarbon group are disclosed.Type: GrantFiled: April 10, 1995Date of Patent: August 27, 1996Assignee: Ricoh Company, Ltd.Inventors: Tomoyuki Shimada, Masaomi Sasaki, Tamotsu Aruga
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Patent number: 5508137Abstract: Certain perylene-3,4:9,10-tetracarboxylic monoanhydride monoimides are condensed with primary diamines or with imidazoles. The products obtained are amidine imides of the formula I ##STR1## where, for example, R.sub.1 is 1-hexylheptyl, R.sub.2 to R.sub.5 are each H and A is 1,2-phenylene. Compounds of the formula I are very light-fast dyes which show strong fluorescence in solution and whose fluorescence occurs at a longer wavelength than that of the bisimides (perylene dyes). The perylene amidine imides of the invention are suitable for example for use as colorants for the mass coloration of macromolecular organic material, as fluorescent dyes or as photoconductors.Type: GrantFiled: August 8, 1994Date of Patent: April 16, 1996Assignee: Ciba-Geigy CorporationInventor: Heinz Langhals
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Patent number: 5488164Abstract: An electrophotographic photoconductor comprising an electroconductive support, and a photoconductive layer formed thereon comprising at least one tertiary amine compound having a condensed polycyclic hydrocarbon group of formula (I): ##STR1## wherein A.sup.1 and A.sup.2 each independently represent an unsubstituted or substituted alkyl group or aryl group, and Ar represents an unsubstituted or substituted condensed polycyclic hydrocarbon group. Furthermore, novel tertiary amine compounds having a condensed polycyclic hydrocarbon group are disclosed.Type: GrantFiled: August 15, 1994Date of Patent: January 30, 1996Assignee: Ricoh Company, Ltd.Inventors: Tomoyuki Shimada, Masaomi Sasaki, Tamotsu Aruga
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Patent number: 5475137Abstract: An electrophotographic photoconductor is composed of an electroconductive substrate and a photoconductive layer formed thereon including a m-phenylenediamine derivative of formula (I): ##STR1## wherein Ar represents a non-condensed polycyclic hydrocarbon group other than a phenyl group, or a condensed polycyclic hydrocarbon group having not more than 18 carbon atoms; and R.sup.1, R.sup.2, R.sup.3 and R.sup.4 each represent hydrogen, a halogen atom, a cyano group, a nitro group, an alkyl group, an alkoxyl group, an aryl group, an aryloxy group, an alkylmercapto group, a group represented by ##STR2## in which R.sup.6 and R.sup.7 each represent hydrogen, an alkyl group, or an aryl group, an alkylenedioxy group or an alkylenedithio group. Novel m-phenylenediamine derivatives for use in the electrophotoconductor and intermediates for producing the m-phenylenediamine derivatives, and methods of those derivatives are disclosed.Type: GrantFiled: April 7, 1994Date of Patent: December 12, 1995Assignee: Ricoh Company, Ltd.Inventors: Tomoyuki Shimada, Masaomi Sasaki, Tamotsu Aruga, Hiroshi Adachi
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Patent number: 5459275Abstract: An electrophotographic photoconductor comprises an electroconductive substrate and a photoconductive layer formed thereon comprising as an effective component at least one pyrenylamine derivative of formula (I): ##STR1## wherein R.sup.1, R.sup.2, R.sup.3, R.sup.4, R.sup.5, W, j, k, l, m and n are specifically defined in the specification. Furthermore, a novel pyrenylamine derivative for use in the above electrophotographic photoconductor, an aldehyde compound, which is an intermediate for producing the pyrenylamine derivative, and methods of preparing the pyrenylamine derivative and the aldehyde compound are disclosed.Type: GrantFiled: June 15, 1994Date of Patent: October 17, 1995Assignee: Ricoh Company, Ltd.Inventors: Chiaki Tanaka, Masaomi Sasaki, Tamotsu Aruga, Tomoyuki Shimida, Hiroshi Adachi
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Patent number: 5457232Abstract: A pyrenylamine derivative having an unsaturated bond of formula (I), which can be employed as an organic photoconductive material for use in electrophotography: ##STR1## wherein R.sup.1, R.sup.2, R.sup.3, R.sup.4, R.sup.5, W, l, m, n, j and k are specifically defined in the specification, an aldehyde compound of formula (II), which is an intermediate for preparing the pyrenylamine derivative: ##STR2## and methods of producing the pyrenylamine derivative and the aldehyde compound are disclosed.Type: GrantFiled: September 9, 1994Date of Patent: October 10, 1995Assignee: Ricoh Company, Ltd.Inventors: Chiaki Tanaka, Masaomi Sasaki, Tamotsu Aruga, Tomoyuki Shimada, Hiroshi Adachi