Polycyclo Carbocyclic Ring System Having At Least Three Cyclos Patents (Class 534/653)
  • Publication number: 20140194605
    Abstract: A SERS tag comprising a core comprising at least two aggregated particles of a SERS enhancing material wherein the contact point between the particles defines a crevice; and a reporter molecule having a length sufficiently short to fit into the crevice and a conjugated path length which is as large as possible, provided the overall reporter molecule length is maintained sufficiently short to fit into the crevice.
    Type: Application
    Filed: March 13, 2014
    Publication date: July 10, 2014
    Applicant: Cabot Security Materials, Inc.
    Inventors: Felicia Tam, Marcelo E. Piotti, Richard G. Freeman
  • Publication number: 20120156491
    Abstract: A SERS tag comprising a core comprising at least two aggregated particles of a SERS enhancing material wherein the contact point between the particles defines a crevice; and a reporter molecule having a length sufficiently short to fit into the crevice and a conjugated path length which is as large as possible, provided the overall reporter molecule length is maintained sufficiently short to fit into the crevice.
    Type: Application
    Filed: June 17, 2011
    Publication date: June 21, 2012
    Applicant: CABOT SECURITY MATERIALS INC.
    Inventors: Felicia Tam, Marcelo E. Piotti, Richard G. Freeman
  • Patent number: 7993446
    Abstract: This invention relates to a dispersant for an organic pigment comprising a compound represented by the below-described formula (1) or (2), and also to its use. According to the present invention, it is possible to provide a dispersant or the like, which can afford a coating formulation for a color filter. The coating formulation is prevented from an increase in viscosity and a reduction in storage stability even when the concentration of a pigment is high, and can fabricate the color filter with excellent transparency and color quality.
    Type: Grant
    Filed: January 30, 2008
    Date of Patent: August 9, 2011
    Assignee: Dainichiseika Color & Chemicals Mfg. Co., Ltd.
    Inventors: Hiroaki Saikatsu, Hiromitsu Yanagimoto, Naoto Kamata, Michiei Nakamura
  • Patent number: 7819969
    Abstract: A Naphthol AS colorant according to Formula (I): wherein R1, R2, R3, R4 and R5 are each independently selected from the group consisting of hydrogen, methyl, ethyl, halogen, methoxy, ethoxy, —CONH-phenyl and —NO2, wherein the group Q is a group including two carboxyl groups or salts thereof. The Naphthol AS colorant may also be used for making colored layers and non-aqueous pigment dispersions.
    Type: Grant
    Filed: November 28, 2006
    Date of Patent: October 26, 2010
    Assignee: Agfa Graphics NV
    Inventor: Geert Deroover
  • Patent number: 7700780
    Abstract: The invention disclosed relates to functionalized zwitterionic chromophores of structural formula III and III?. Wherein A is a linear or branched alkyl group having up to 20 carbon atoms and the desired functional groups, B is hydrogen, alkyl, aryl, halo, heterocyclic, alkoxy or nitro groups at 2, 3, 5 or 6 positions on the pyridine ring, C is hydrogen, aryl or a linear or branched alkyl group at 2?, 3?, 5? or 6? positions on the benzene ring, which has up to 70 carbon atoms and contains the desired functional group, D is a linear or branched alkyl, aryl or substituted aryl group, which has up to 70 carbon atoms and contains the desired functional group, R is C1-C4 alkyl or aryl, and m is an integer of from 0 to 4.
    Type: Grant
    Filed: March 3, 2006
    Date of Patent: April 20, 2010
    Inventor: Zhi Yuan Wang
  • Publication number: 20090104417
    Abstract: A metal chelate compound comprising a compound of the Formula (1) or a salt thereof: wherein: Het is a nitrogen containing heterocycle selected from the group consisting of Formula (2), (3), (4), (5), (6) or (7): R is a substituent; Y is CH3 or COOH; Z is a substituent, n is 0 to 3; p is 0 to 6; q is 0 to 5; r is 0 to 3; and s is 0 to 2. Also compositions and inks, printing processes, printed material and ink-jet printer cartridges.
    Type: Application
    Filed: May 12, 2006
    Publication date: April 23, 2009
    Applicant: FUJIFILM IMAGING COLORANTS LIMITED
    Inventors: Clive Edwin Foster, Rachel Anne James
  • Patent number: 7150782
    Abstract: A metal chelate compound obtainable from contacting a transition metal salt with a compound of the Formula (1): wherein: x represents plural atoms required to form at least one optionally substituted 5- to 7-membered heterocyclic ring; and Ar is an optionally substituted stilbene, acenaphthylene, phenanthrene or anthracene group carrying a hydroxy, amino or carboxy group adjacent to the —N?N— group shown in Formula (1) or 6-hydroxyquinoline where the hydroxy group is adjacent to the —N?N— group shown in Formula (1); provided that when the compound of Formula (1) is of Formula: that, p, the level of sulfonation, is not in the range 1 to 2. Also compositions, inks, printed substrates and inkjet cartridges.
    Type: Grant
    Filed: May 20, 2004
    Date of Patent: December 19, 2006
    Assignee: Fujifilm Imaging Colorants Limited
    Inventors: Clive Edwin Foster, John Mayall, Mark Kenworthy
  • Patent number: 7147697
    Abstract: A metal chelate compound obtainable from contacting a transition metal salt with a compound of the Formula (1) or a salt thereof: wherein p is 1 to 2. Also compositions, inks, printed substrates, ink-jet cartridges and ink-jet printers.
    Type: Grant
    Filed: May 20, 2004
    Date of Patent: December 12, 2006
    Assignee: Fujifilm Imaging Colorants Limited
    Inventors: Clive Edwin Foster, John Mayall, Mark Kenworthy, Rachel Anne James
  • Patent number: 6849367
    Abstract: Providing an electrophotographic photoconductor comprising a conductive support and a photoconductive layer disposed on the photoconductive support; wherein the photoconductive layer contains an azo compound expressed by a general formula <<1>>. Ar?N?N—Cp)n??general formula <<1>> (in the general formula <<1>>, Ar expresses one of a substituted or non-substituted aromatic carbon hydride group and heterocyclic ring aromatic series group which can be combined by way of a bond group; Cp expresses a coupler residual group; n expresses an integer of one of 1, 2, 3, and 4; at least one of the Cp is a coupler residual group selected from one of the following general formulae <<2>>, <<3>>, and <<4>>.
    Type: Grant
    Filed: September 13, 2002
    Date of Patent: February 1, 2005
    Assignee: Ricoh Company, Ltd.
    Inventors: Masayuki Shoshi, Yuuko Komai, Hongguo Li, Masaomi Sasaki
  • Patent number: 6827770
    Abstract: A metal chelated dyestuff for inkjet recording comprising a water soluble azo metal chelated compound formed by an azo-based compound represented by the following general formula (1) having one or more hydrophilic group per molecule and a metal element; an aqueous inkjet recording liquid comprising an aqueous medium and the aforementioned metal chelated dyestuff; and an inkjet recording method using the aforementioned recording liquid are described, wherein the heterocyclic ring containing X1 is a triazole ring or the like; and Ar1 represents naphthyl group having a chelated group.
    Type: Grant
    Filed: June 18, 2002
    Date of Patent: December 7, 2004
    Assignee: Mitsubishi Chemical Corporation
    Inventors: Tomohiro Chino, Masahiro Yamada, Hideo Sano, Wataru Shimizu, Yuukichi Murata
  • Publication number: 20040171817
    Abstract: There are described novel complexes formed between hydrogen bond acceptors and phenolic dye compounds and imaging members and imaging methods, including thermal imaging members and methods utilizing the complexes.
    Type: Application
    Filed: February 27, 2004
    Publication date: September 2, 2004
    Inventors: Richard M. Allen, Michael P. Filosa, Stephen J. Telfer
  • Publication number: 20040106782
    Abstract: A dye is disclosed, which is represented by the following formula: 1
    Type: Application
    Filed: November 19, 2003
    Publication date: June 3, 2004
    Applicant: KONICA MINOLTA HOLDINGS, INC.
    Inventors: Kyoko Iwamoto, Hidetaka Ninomiya, Satoru Ikesu, Takatugu Suzuki, Mari Takahashi
  • Publication number: 20040027399
    Abstract: A process for printing an image on a substrate comprising applying thereto by means of an ink jet printer an ink containing a metal chelate compound of the Formula (1) and salts thereof: 1
    Type: Application
    Filed: May 20, 2003
    Publication date: February 12, 2004
    Applicant: Avecia Limited
    Inventors: Gavin Wright, Kevin Johnson, Mairi Elizabeth Raggatt, Prakash Patel
  • Patent number: 6667392
    Abstract: This invention relates to colorants comprising a chromophore having a single azo acetoacetanilide moiety, wherein said moiety each have at least one poly(oxyalkylene) chain. Such colorants exhibit extremely good base stability and lightfastness, particularly when incoporated within certain media and/or on the surface of certain substrates. These poly(oxyalkylene) chains provide solubility in different solvents or resins thereby permitting the introduction of such excellent coloring chromophores within diverse media and/or or diverse substrates. Compositions and articles comprising such colorants are provided as are methods for producing such inventive colorants.
    Type: Grant
    Filed: November 21, 2001
    Date of Patent: December 23, 2003
    Assignee: Milliken & Company
    Inventors: Jusong Xia, Eric B. Stephens, Mary G. Mason, John W. Miley, Leonard J. Starks, Eugene K. Stephenson
  • Publication number: 20030195341
    Abstract: The present invention refers to trisazo dyes of the formula I 1
    Type: Application
    Filed: February 6, 2003
    Publication date: October 16, 2003
    Inventor: Warren James Ebenezer
  • Publication number: 20030195340
    Abstract: A chromene compound which develops yellow to red color, a high color density and a little initial color and which, when used in combination with an existing photochromic compound that exhibits blue color so as to develop a neutral tint, maintains uniformity in the color tone at the time of developing color or fading color, or exhibits a very large color fading rate.
    Type: Application
    Filed: February 19, 2002
    Publication date: October 16, 2003
    Inventors: Junji Momoda, Shingo Matsuoka, Hironobu Nagou
  • Publication number: 20030191294
    Abstract: Water-soluble fiber-reactive dyes, preparation thereof and use thereof Dyes of the general formula (1): 1
    Type: Application
    Filed: February 6, 2003
    Publication date: October 9, 2003
    Inventors: Joachim Steckelberg, Hermann Henk
  • Publication number: 20030190540
    Abstract: Providing an electrophotographic photoconductor comprising a conductive support and a photoconductive layer disposed on the photoconductive support; wherein the photoconductive layer contains an azo compound expressed by a general formula <<1>>.
    Type: Application
    Filed: September 13, 2002
    Publication date: October 9, 2003
    Inventors: Masayuki Shoshi, Yuuko Komai, Hongguo Li, Masaomi Sasaki
  • Publication number: 20030162951
    Abstract: The novel disperse dye mixtures of hydroquinolone monoazo dyes (I) 1
    Type: Application
    Filed: February 6, 2003
    Publication date: August 28, 2003
    Inventors: Ulrich Bhler, Hartwig Jordan
  • Publication number: 20030138374
    Abstract: A compound represented by the formula (I):
    Type: Application
    Filed: September 20, 2002
    Publication date: July 24, 2003
    Inventors: Yukitsuda Kudo, Masako Suzuki, Takahiro Suemoto, Hiroshi Shimazu
  • Publication number: 20030125530
    Abstract: A metal chelated dyestuff for inkjet recording comprising a water soluble azo metal chelated compound formed by an azo-based compound represented by the following general formula (1) having one or more hydrophilic group per molecule and a metal element; an aqueous inkjet recording liquid comprising an aqueous medium and the aforementioned metal chelated dyestuff; and an inkjet recording method using the aforementioned recording liquid are described, 1
    Type: Application
    Filed: June 18, 2002
    Publication date: July 3, 2003
    Applicant: MITSUBISHI CHEMICAL CORPORATION
    Inventors: Tomohiro Chino, Masahiro Yamada, Hideo Sano, Wataru Shimizu, Yuukichi Murata
  • Publication number: 20030088076
    Abstract: Thermoplastic resin compositions suitable for laser welding are disclosed, which include a mixture of neutral anthraquinone blue dye with other red dye to absorb visible light with wavelength less than 700 nm and transmit a laser beam with wavelength at 800 nm to 1200 nm and to enhance weldability.
    Type: Application
    Filed: November 13, 2001
    Publication date: May 8, 2003
    Inventors: Reiko Koshida, Yoshiteru Hatase, Ryuichi Hayashi, Hiroyuki Sumi
  • Patent number: 6551364
    Abstract: Dye mixtures which comprise at least one 1:2 cobalt complex dye of the formazan compound of the formula in which X is substituted or unsubstituted C1-C8alkyl, phenyl, naphthyl, furyl or thienyl, R1 and R2 independently of one another are hydrogen or substituted or unsubstituted C1-C8alkyl, phenyl or naphthyl, m is a number from 1 to 4 and the rings I, II, III and IV may be further substituted, together with at least one anthraquinone dye of the formula (2) as defined in claim 1, or together with at least one 1:2 chromium or 1:2 cobalt complex dye of two identical or different azo compounds from the group comprising the compounds of the formulae (3), (4), (5) and (6) as defined in claim 1; and novel 1:2 cobalt complex formazan dyes. The dye mixtures are particularly suitable for dyeing or printing natural and synthetic polyamide fiber materials, dyeings or prints having good fastnesses being obtained.
    Type: Grant
    Filed: February 22, 2001
    Date of Patent: April 22, 2003
    Assignee: Ciba Specialty Chemicals Corporation
    Inventors: Urs Lehmann, Marcel Frick
  • Publication number: 20030036538
    Abstract: The present invention discloses dye-sulfenate derivatives and their bioconjugates for dual phototherapy of tumors and other lesions. The compounds of the present invention may contain either a mixture of Type 1 and Type 2 agents or a single entity that integrates both units in the same molecules. The compounds are designed to produce both Type 1 and Type 2 phototherapeutic effect at once using dual wavelength light source that will produce singlet oxygen and free radicals at the lesion of interest.
    Type: Application
    Filed: July 3, 2001
    Publication date: February 20, 2003
    Applicant: MALLINCKRODT INC.
    Inventors: Raghavan Rajagopalan, Samuel I. Achilefu, Joseph E. Bugaj, Richard B. Dorshow
  • Publication number: 20020193577
    Abstract: A novel crystal form of C.I. Solvent Orange 60 gives a higher space-time yield in dye synthesis and is more easily finished.
    Type: Application
    Filed: March 25, 2002
    Publication date: December 19, 2002
    Inventors: Stephan Michaelis, Josef-Walter Stawitz
  • Patent number: 6448384
    Abstract: An electrophotographic photoconductor has an electroconductive support, and a photoconductive layer formed thereon which contains at least one bisazo compound of formula (I): wherein Cp1 and Cp2 are each a coupler radical which may be the same or different. Further, these are disclosed a bisazo compound of formula (II), and raw materials thereof, that is, 1,4-bis[4-(4-nitrophenyl)-1,3-butadienyl]benzene of formula (V), 1,4-bis[4-(4-aminophenyl)-1,3-butadienyl]benzene of formula (VI) and a bis(diazonium salt) compound of formula (III).
    Type: Grant
    Filed: September 4, 2001
    Date of Patent: September 10, 2002
    Assignee: Ricoh Company, Ltd.
    Inventor: Tomoyuki Shimada
  • Patent number: 6417178
    Abstract: Amyloid binding compounds which are derivatives of Chrysamine G, pharmaceutical compositions containing, and methods using such compounds to identify Alzheimer's brain in vivo and to diagnose other pathological conditions characterized by amyloidosis, such as Down's Syndrome are described. Pharmaceutical compositions containing Chrysamine G and derivatives thereof and methods using such compositions to prevent cell degeneration and amyloid-induced toxicity in amyloidosis associated conditions are also described. Methods using Chrysamine G derivatives to stain or detect amyloid deposits in biopsy or post-mortem tissue are also described. Methods using Chrysamine G derivatives to quantify amyloid deposits in homogenates of biopsy and post-mortem tissue are also described.
    Type: Grant
    Filed: November 6, 1997
    Date of Patent: July 9, 2002
    Assignee: University of Pittsburgh
    Inventors: William E. Klunk, Jay W. Pettegrew, Chester A. Mathis, Jr.
  • Patent number: 6140477
    Abstract: A polyazo compound capable of effectively absorbing near-infrared rays, which can be produced from readily available raw materials is provided, which comprises at least one --OH group or at least one group derived from --OH group at p-position of the azo group in the molecule of the polyazo compound. This compound can be produced by diazotizing a substituted or nonsubstituted aromatic monocyclic or polycyclic compound or heterocyclic compound, each having a diazotizable primary amino group, and successively coupling the resulting diazo component with an azo component having a diazotizable primary amino group, the last azo component being such that --OH group or a group derived from --OH group be present at p-position to the azo group resulting from the azo component.
    Type: Grant
    Filed: March 23, 1999
    Date of Patent: October 31, 2000
    Assignee: Hakkol Chemical Co., Ltd.
    Inventors: Shigekazu Matsumoto, Takao Yanagisawa, Shigehiro Matsumoto, Kunio Shimabukuro
  • Patent number: 5770393
    Abstract: A bacteria impermeable container or ampule (10) contains a liquid growth medium and a substrate-indicator complex. The complex includes a substrate component, e.g., starch, and an indicator molecule, e.g., a dye, a fluorescent molecule, or the like, which are tightly bound and complexed, but which are cleavable by a preselected enzyme. A sterilant passes over a carrier (20) for microorganisms which, upon germination, are capable of rapidly generating large quantities of the preselected enzyme. Following the sterilization process, the carrier is immersed in the liquid growth medium. Any viable surviving microorganisms grow, generating the preselected enzyme. The enzymes cleave the bound indicator molecule from the substrate, resulting in a measurable property change in a couple of hours. Typical property changes include fluorescence, a color change, a change in pH which triggers a pH indicator color change, and the like.
    Type: Grant
    Filed: April 1, 1997
    Date of Patent: June 23, 1998
    Assignee: Steris Corporation
    Inventors: Joseph P. Dalmasso, David A. Freeman
  • Patent number: 5623062
    Abstract: An electrophotographic photoconductor is disclosed, which comprises an electroconductive support and a photoconductive layer formed thereon comprising a bisazo pigment having the formula (I) serving as a charge generating material: ##STR1## wherein Ar represents a residual group of a coupler represented by ArH selected from the group consisting of: an aromatic hydrocarbon compound having a hydroxyl group, a heterocyclic compound having a hydroxyl group, an aromatic hydrocarbon compound having an amino group, a heterocyclic compound having an amino group, an aromatic hydrocarbon compound having a hydroxyl group and an amino group, a heterocyclic compound having a hydroxyl group and an amino group, an aliphatic compound having an enolic ketone group, and an aromatic hydrocarbon compound having an enolic ketone group. Further, charge generating materials and novel bisazo pigments for use in the electrophotographic photoconductor are disclosed.
    Type: Grant
    Filed: April 28, 1994
    Date of Patent: April 22, 1997
    Assignee: Ricoh Company, Ltd.
    Inventors: Masaomi Sasaki, Tomoyuki Shimada
  • Patent number: 5569749
    Abstract: An organic photoconductive material is represented by the following general formula [1]:A.sub.1 --N.dbd.N--B--N.dbd.N--A.sub.2 [1],wherein B is a divalent organic group bonded to nitrogen atoms forming azo groups, A.sub.1 and A.sub.2 are groups different from each other, A.sub.1 is represented by the following general formula [A1]: ##STR1## wherein X is an atomic group which is necessary for forming an aromatic hydrocarbon ring or an aromatic hetero-ring by condensation with the benzene ring, Y is a hydrogen atom, an alkyl group, an alkoxy group or a halogen atom, m is an integer of 1 to 4, R is an aromatic hydrocarbon ring group or an aromatic hetero-ring group and n is 1 or 2, and A.sub.2 is a group represented by one of the following general formulae [A2] and [A3]: ##STR2## wherein a.sub.1 is a group selected from R, --N.dbd.CH--R and ##STR3## R, X, Y, m and n are the same as those in the general formula [A1] and p is 0 or 1.
    Type: Grant
    Filed: January 18, 1996
    Date of Patent: October 29, 1996
    Assignee: Dainichiseika Color & Chemicals Mfg. Co., Ltd.
    Inventors: Hisao Kouno, Shyouichi Takahashi, Kazuhiro Higashide, Nakaji Komiyama, Osamu Suda, Masaru Hasegawa
  • Patent number: 5506346
    Abstract: An organic photoconductive material is represented by the following general formula [1]:A.sub.1 -N.dbd.N-B-N.dbd.N-A.sub.2 [1],wherein B is a divalent organic group bonded to nitrogen atoms forming azo groups, A.sub.1 and A.sub.2 are groups different from each other, A.sub.1 is represented by the following general formula [A1]: ##STR1## wherein X is an atomic group which is necessary for forming an aromatic hydrocarbon ring or an aromatic hetero-ring by condensation with the benzene ring, Y is a hydrogen atom, an alkyl group, an alkoxy group or a halogen atom, m is an integer of 1 to 4, R is an aromatic hydrocarbon ring group or an aromatic hetero-ring group and n is 1 or 2, and A.sub.2 is a group represented by one of the following general formulae [A2] and [A3]: ##STR2## wherein a.sub.1 is a group selected from R, -N.dbd.CH-R and ##STR3## R, X, Y, m and n are the same as those in the general formula [A1] and p is 0 or 1.
    Type: Grant
    Filed: February 28, 1994
    Date of Patent: April 9, 1996
    Assignee: Dainichiseika Color & Chemicals Mfg. Co., Ltd.
    Inventors: Hisao Kouno, Shyouichi Takahashi, Kazuhiro Higashide, Nakaji Komiyama, Osamu Suda, Masaru Hasegawa
  • Patent number: 5326865
    Abstract: Arylazo and poly(arylazo) dyes having at least one core radical selected from naphthyl or anthracyl and having at least one 2,3-dihydro-1,3-dialkyl perimidine substituent, a guest-host composition comprising a liquid crystal host solvent and the arylazo or poly(arylazo) dichroic dye, and a liquid crystal display comprising the guest-host composition, are disclosed.
    Type: Grant
    Filed: June 8, 1990
    Date of Patent: July 5, 1994
    Assignee: Hercules Incorporated
    Inventors: Robert P. Grasso, Michael K. O'Brien, Paul J. Shannon
  • Patent number: 5312906
    Abstract: Bisazo compounds of formula (I), an intermediate for producing the bisazo compound of formula (I), and trisazo compounds of formula (II) for use in optical information recording media, and methods of producing these compounds are disclosed: ##STR1## wherein R represents hydrogen, an alkyl group having 1 to 20 carbon atoms; an aryl group selected from the group consisting of phenyl group, naphthyl group, mesityl group, and tri-t-butyl phenyl group; an alkoxyl group having 1 to 4 carbon atoms; a nitro group; a cyano group; chlorine; or bromine; n is an integer of 1, 2, or 3; and C.sub.p represents a coupler residue.
    Type: Grant
    Filed: July 24, 1992
    Date of Patent: May 17, 1994
    Assignee: Ricoh Company, Ltd.
    Inventor: Masakatsu Shimoda
  • Patent number: 5274084
    Abstract: An azo compound represented by the following general formula IA and an electrophotographic photosensitive member comprising a photosensitive layer containing the azo compound: ##STR1## wherein R.sup.1 and R.sup.2 are the same or different from each other and indicate a hydrogen atom, an alkyl group, an alkenyl group, a hydroxyl group, an alkoxy group, a carboxy group, an alkoxy carbonyl group, an acyl group, an aryl group, a halogen group or a cyano group, respectively; R.sup.14 indicates a hydrogen atom, a halogen group, an alkyl group, an alkoxy group, an aryl group, an amino group, a cyano group, a nitro group or a sulfoxide group; and A indicates a coupler residue having an acceptor property.
    Type: Grant
    Filed: November 24, 1992
    Date of Patent: December 28, 1993
    Assignee: Mita Industrial Co., Ltd.
    Inventors: Eiichi Miyamoto, Yasuyuki Hanatani, Hiroaki Iwasaki, Yasufumi Mizuta, Akihiko Kawahara
  • Patent number: 5262526
    Abstract: A fluorescent compound, which is readily capable of forming a stable complex with a rare-earth metal ion having fluorescence with satisfactory intensity even in an aqueous system and long fluorescence lifetime when formed a complex with the rare-earth metal ion, a complex of the fluorescent compound and the rare-earth metal ion, and a labelled reagent made therefrom, together with a specific binding assay using said labelling agent.A fluorescent compound expressed by the following formula A, typically exemplified by 2,15-diaza[3,3](2,9)-1,10-phenanthrolinophane-N.sup.2,N.sup.15 -diacetic acid.
    Type: Grant
    Filed: December 20, 1991
    Date of Patent: November 16, 1993
    Assignees: Dojindo Laboratories, Mochida Pharmaceutical Co., Ltd.
    Inventors: Kazumi Sasamoto, Daikichi Horiguchi, Masahiro Nobuhara, Hiroshi Mochizuki
  • Patent number: 5252106
    Abstract: Liquid petroleum products are marked with markers having the formula: ##STR1## where the Ws are selected from O--(C.sub.1 -C.sub.3 alkyl) and hydrogen, provided that at least one W is O--(C.sub.1 -C.sub.3 alkyl), the Xs and Ys are the same or different and are selected form hydrogen, alkyl, substituted alkyl, alkenyl, substituted alkenyl, aryl, substituted aryl, fused aryl, substituted fused aryl, halogen, nitro, cyano, and alkoxy.
    Type: Grant
    Filed: July 29, 1992
    Date of Patent: October 12, 1993
    Assignee: Morton International, Inc.
    Inventor: Michael J. Hallisy
  • Patent number: 5186865
    Abstract: Azo-type optically active compounds and polymers are provided based on compounds of the general structure[substituted aryl]--N.dbd.N--[substituted aryl]wherein aryl substituents are introduced which hinder or prohibit rotation around the single bonds of the --N.dbd.-- central moiety (as well as around certain other single bonds), to provide "planarized" structures having improved optically active properties, especially electro-optically active properties. These compounds and polymers find use in optically active waveguides.
    Type: Grant
    Filed: October 3, 1991
    Date of Patent: February 16, 1993
    Assignee: Allied-Signal Inc.
    Inventors: Chengjiu Wu, Ajay Nahata, Michael J. McFarland, Keith Horn, James T. Yardley
  • Patent number: 5168026
    Abstract: A bis-azo compound represented by the following general formula and an electrophotographic photosensitive member having a light receiving layer containing said bis-azo compound. ##STR1## [wherein, two of the substituent groups R.sub.1 to R.sub.4 are respectively an azo group having a coupler residue which is bonded either directly or through a phenyl ring to the diphenoquinone skeleton, and the remaining two substituent groups are respectively hydrogen atom, alkyl group, alkenyl group, hydroxyl group, alkoxy group, carboxyl group, aryl group, halogen atom or cyano group wherein the two substituent groups may be identical or different each other, and Z is oxygen atom or sulfur atom.
    Type: Grant
    Filed: February 11, 1992
    Date of Patent: December 1, 1992
    Assignee: Mita Industrial Co., Ltd.
    Inventor: Eiichi Miyamoto
  • Patent number: 5106712
    Abstract: A novel electrophotographic photoreceptor is provided comprising on an electrically conductive support a layer containing a charge carrier-transporting compound and a charge carrier-generating compound or a charge carrier-transporting compound-containing layer and a charge-generating compound-containing layer, characterized in that as said charge carrier-generating compound there is contained a novel bisazo compound represented by the general formula (1-A), (1-B) or (1-C):Cp--N.dbd.N--Ar.sup.1 --C.tbd.C--.sub.n Ar.sup.2 --N.dbd.N--Cp (1-A)wherein Ar.sup.1 and Ar.sup.2 each represents an arylene group, divalent condensed polycyclic aromatic group or divalent heterocyclic aromatic group; Cp represents a coupler residue; and n represents an integer 2 or 3;Cp--N.dbd.N--Ar.sup.1 --C.tbd.C--Ar.sup.2 --C.tbd.C--Ar.sup.3 --C.tbd.C--Ar.sup.4 --N.dbd.N--Cp (1-B)wherein Ar.sup.1, Ar.sup.2, Ar.sup.3 and Ar.sup.
    Type: Grant
    Filed: July 6, 1990
    Date of Patent: April 21, 1992
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Katsugi Kitatani, Naonori Makino, Satoshi Hoshi
  • Patent number: 5037968
    Abstract: Keto compounds in which to the carbon atom in the neighboring position to the keto compounds there is bonded at least one strongly electron attracting substituent and/or in which there is conjugating with the carbon-oxygen-double bond of the keto group a .pi.-electron system have the ability of interacting selectively with the anions of oxa acids yielding adducts, chelates or complexes.Provided that in the corresponding keto compounds the keto group is a part of a chromophore, then the shifting of the absorption in the visible range or the ultraviolet range of the wave lengths is observed, compared with the corresponding absorption of the free keto compound.The corresponding keto compounds are used for the determination of the anions of the oxa acids and they e.g. can be the ion sensitive component of a corresponding ions sensitive part for the determination of said anions. Several of said keto compounds can be also used as color indicator for the anions of the oxa acids.
    Type: Grant
    Filed: March 11, 1988
    Date of Patent: August 6, 1991
    Assignee: Willi Moller
    Inventors: Wilhelm Simon, Erno Pretsch
  • Patent number: 5023324
    Abstract: Disazo and trisazo compounds free of sulfo groups which contain 6-hydroxy-4-methyl-3-N-pyridiniumpyridone-2 coupling component radicals, the preferred compounds being of the formula ##STR1## wherein R is a tetrazo component radical,each R.sub.1 is independently hydrogen, C.sub.1-4 alkyl, C.sub.2-4 hydroxyalkyl the hydroxy group of which is in other than the 1-position or --NR.sub.3 R.sub.4, wherein each of R.sub.3 and R.sub.4 is independently n-C.sub.1-4 alkyl,each R.sub.2 is independently hydrogen, n-C.sub.1-4 alkyl, n-C.sub.1-4 hydroxyalkyl or C.sub.1-4 alkoxy, andeach A.sup..crclbar. is an anion,and liquid and granulated dye compositions comprising such compounds, are useful for dyeing paper and basically dyeable substrates such as polymers and copolymers of acrylonitrile and dicyanoethylene and synthetic polyesters and polyamides modified to contain acid groups. Dyeings on paper are brilliant and possess good light fastness and good fastness to water and alcohol.
    Type: Grant
    Filed: July 29, 1986
    Date of Patent: June 11, 1991
    Assignee: Sandoz Ltd.
    Inventor: Helmut Moser
  • Patent number: 4988593
    Abstract: An electrophotographic photosensitive member having a photosensitive layer is formed on a support and contains an azo pigment expressed by a general formula [I] or [II]: ##STR1## where A, B.sub.1 and B.sub.2 are aromatic hydrocarbon nucleus groups or heterocyclic groups which may be optionally linked by coupler groups, A is an univalent group, B.sub.1 is an univalent, bivalent or trivalent group, and B.sub.2 is a bivalent or trivalent group; X is a residue necessary for forming a polycyclic aromatic nucleus or a heterocycle by condensation with a benzene nucleus; R is a halogen atom, an alkyl group or an alkoxy group; n.sub.1 is an integer from 1 to 3; and n.sub.2 is an integer from 1 to 3. This photosensitive layer may be composed of a charge generation layer containing the above azo pigment and a charge transport layer.
    Type: Grant
    Filed: September 20, 1989
    Date of Patent: January 29, 1991
    Assignee: Canon Kabushiki Kaisha
    Inventor: Hideyuki Takai
  • Patent number: 4977051
    Abstract: An electrophotographic photoreceptor is disclosed, which comprises an electrically conductive support having thereon a layer which contains a charge carrier transporting compound and a charge carrier generating compound, or a layer which contains charge carrier transporting compound and a layer which contains a charge generating compound, wherein at least one type of tris-azo compound represented by formula (I) is included as a charge carrier generating compound: ##STR1## wherein Ar.sub.1, Ar.sub.2, Ar.sub.3, Ar.sub.4 and A are as defined in the specification.
    Type: Grant
    Filed: November 8, 1989
    Date of Patent: December 11, 1990
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Shigeru Ohno, Katsuji Kitatani, Naonori Makino, Satoshi Hoshi, Hideo Sato
  • Patent number: 4956255
    Abstract: The present invention relates to a photosensitive member containing a specific azo compound represented by the following general formula [I]; ##STR1## wherein A is a bivalent group of a condensed poly-cyclic ring which may have a substituent, a pyridine which may have a substituent, a diazine which may have a substituent, a quinoline which may have a substituent, or a benzoazine which may have a substituent; Cp is a residual group of a coupler, which is improved in photosensitive porperties, in particular, sensitivity.
    Type: Grant
    Filed: February 22, 1989
    Date of Patent: September 11, 1990
    Assignee: Minolta Camera Kabushiki Kaisha
    Inventor: Hideaki Ueda
  • Patent number: 4863910
    Abstract: A complex of an azo compound of the formula ##STR1## wherein R and R' are selected from the group consisting of hydrogen, --COCR.sub.4.sup.3, --COCHR.sub.2.sup.4, --CO.sub.2 C.sub.2 H.sub.5, --CH.sub.2 CH.sub.2 R.sup.4, --(CH.sub.2 CH.sub.2 R.sup.4)2, --CH.sub.2 CH.sub.2 OH, --CONHCH.sub.2 CH.sub.2 R.sup.4 and --CH.sub.2 CH.sub.2 OCOHN.sub.2, R.sup.4 is selected from the group consisting of chlorine, ##STR2## --NHCO.sub.2 CH.sub.2 CH.sub.2 OH, --HNCO.sub.2 C.sub.2 H.sub.5, --NHOH, --NHCONHOH and --NHCH.sub.3 ; R.sup.1 and R.sup.2 are individually selected from the group consisting of ##STR3## --NHCH.sub.2 CH.sub.2 Cl, --NHCONHOH, --NHCO.sub.2 C.sub.2 H.sub.5, 6-mercapropurin, 5-fluoruracil and prenissolin, R.sup.3 is selected from the group consisting of hydrogen, --COCHR.sub.2.sup.4, --SO.sub.2 CH.sub.3, --COC.sub.2 H.sub.5, --CH.sub.2 CH.sub.2 R.sub.4 and --CONH.sub.2, R.sup.
    Type: Grant
    Filed: May 20, 1986
    Date of Patent: September 5, 1989
    Inventor: Takeo Takayanagi
  • Patent number: 4692393
    Abstract: A photoreceptor comprising a support and thereon a photosensitive layer containing an azo compound.
    Type: Grant
    Filed: October 28, 1985
    Date of Patent: September 8, 1987
    Assignee: Konishiroku Photo Industry Co., Ltd.
    Inventors: Akira Kinoshita, Kazumasa Watanabe, Hiroshi Yamazaki, Naohiro Hirose
  • Patent number: 4619994
    Abstract: A compound, useful as an anti-cancer drug or agent, having the formulaR.sub.1 --X--R.sub.2where X represents a polynuclear aromatic or heteroaromatic hydrocarbon having between two and four fused rings which may be substituted by hydroxyl, amino, alkylamino, alkoxy or halogeno, R.sub.1 represents: ##STR1## where y represents one member selected from: ##STR2## or alkylated derivatives thereof, and R.sub.2 represents hydrogen or R.sub.1, an acid addition salt of said compound, a nitrogen oxide derivative of said compound in the case where it contains a ring nitrogen atom or atoms, and a quaternary salt of said compound in the case where it contains a ring nitrogen atom or atoms.
    Type: Grant
    Filed: July 25, 1985
    Date of Patent: October 28, 1986
    Inventor: Douglas Shortridge
  • Patent number: 4579800
    Abstract: A photoreceptor comprising a support and a photosensitive layer which contains an azo compound of the formula [I]: ##STR1## wherein Q is a halogen atom, a hydrogen atom, an alkyl group, an alkoxy group, an alkylsulfonyl group, an aryl group, an acetylamido group, ##STR2## (Q.sub.1 is an alkyl group, an alkoxy group, a phenyl group, an amino group, a hydroxy group or a hydrogen atom) or ##STR3## (Q.sub.2, Q.sub.3 and Q.sub.4 independently are an alkyl group, an alkoxy group, a phenyl group, an acyl group, an ester group, a hydroxy group, a cyano group, a vinyl group, a halogen atom or a hydrogen atom), said alkyl group, alkoxy group, aryl group, amino group and vinyl group may have a substituent; Y.sub.1 and Y.sub.
    Type: Grant
    Filed: February 11, 1985
    Date of Patent: April 1, 1986
    Assignee: Konishiroku Photo Industry Co., Ltd.
    Inventors: Naohiro Hirose, Osamu Sasaki, Yoshio Takizawa
  • Patent number: 4576886
    Abstract: A photoreceptor comprising a support and a photosensitive layer which contains an azo compound of the formula [I]: ##STR1## wherein P.sub.1 and P.sub.2 are independently a halogen atom, a hydrogen atom, an alkyl group, an alkoxy group, an aryl group, an acetylamido group, an alkylsulfonyl group, ##STR2## (Q.sub.1 is an alkyl group, an alkoxy group, a phenyl group, an amino group, a hydroxy group or a hydrogen atom) or ##STR3## (Q.sub.2, Q.sub.3 and Q.sub.4 independently are a halogen atom, a hydrogen atom, an alkyl group, an alkoxy group, a phenyl group, an acyl group, an ester group, a hydroxy group or a vinyl group), the alkyl group, alkoxy group, aryl group, amino group and vinyl group may have a substituent; Y.sub.1 and Y.sub.
    Type: Grant
    Filed: February 11, 1985
    Date of Patent: March 18, 1986
    Assignee: Konishiroku Photo Industry Co., Ltd.
    Inventors: Naohiro Hirose, Osamu Sasaki, Yoshio Takizawa