Aluminum Patents (Class 430/526)
  • Patent number: 4465767
    Abstract: An optical information recording medium comprising a substrate and a recording layer superimposed on said substrate, said recording layer being comprised of a reflective layer which contains metal particles having a particle diameter of 1500 .ANG. or less and in which said metal particles have been distributed closely and a light absorptive layer containing a coloring matter.
    Type: Grant
    Filed: September 27, 1982
    Date of Patent: August 14, 1984
    Assignee: Ricoh Company, Ltd.
    Inventors: Hideaki Oba, Masaakira Umehara
  • Patent number: 4461820
    Abstract: An electrophotographic image-forming member comprises (1) a substrate for electrophotography which has a surface coating of an aluminum oxide containing water chemi-structurally and (2) a photoconductive layer which is laid on said surface coating of the substrate and constituted of an amorphous material containing at least one of hydrogen atom and halogen atom in a matrix of silicon atom, said photoconductive layer containing at least one of oyxgen atom, nitrogen atom, and carbon atom.
    Type: Grant
    Filed: February 1, 1982
    Date of Patent: July 24, 1984
    Assignee: Canon Kabushiki Kaisha
    Inventors: Shigeru Shirai, Junichiro Kanbe, Tadaji Fukuda
  • Patent number: 4427765
    Abstract: The plate-, foil- or strip-shape support materials for offset printing plates are based on chemically, mechanically and/or electromechanically roughened aluminum, or on one of its alloys. Optionally, the aluminum may also have an aluminum oxide layer produced by anodic oxidation. One of the two surfaces the support material has a hydrophilic coating of at least one salt-type hydrophilic organic polymer which is a complex-type product obtained by reacting (a) a water-soluble organic polymer having acid functional groups containing phosphorus or sulfur (for example, polyvinylphosphonic or polyvinylsulfonic acid) with (b) a salt of an at least divalent metal cation.In a process for manufacturing this support material, the complex-type reaction product, dissolved in an aqueous acid, is applied to at least one surface of the support material and the support material thus modified is dried.
    Type: Grant
    Filed: June 23, 1982
    Date of Patent: January 24, 1984
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Dieter Mohr, Werner Frass
  • Patent number: 4427766
    Abstract: The plate-, foil- or strip-shape support materials for offset printing plates are based on chemically, mechanically and/or electromechanically roughened aluminum, or on one of its alloys. Optionally, the aluminum may also have an aluminum oxide layer produced by anodic oxidation. One of the two surfaces of the support material has a hydrophilic coating of at least one salt-type hydrophilic organic polymer which is a complex-type product obtained by reacting (a) a water-soluble organic polymer having carboxylate substituents, carboxylic acid amide substituents and/or carboxylic acid imide substituents as functional groups, with (b) a salt of an at least divalent metal cation, and wherein the quantity of complex-type reaction product is less than about 0.1 mg per dm.sup.2 of support material surface.
    Type: Grant
    Filed: June 23, 1982
    Date of Patent: January 24, 1984
    Assignee: Hoechst Aktiengesellschaft
    Inventor: Dieter Mohr
  • Patent number: 4394441
    Abstract: A photographic sensitive material is described comprising at least one photographic sensitive layer provided on a plastic film base through a subbing layer, wherein the improvement comprises said subbing layer containing fine particles of at least one electrically conductive crystalline metal oxide selected from ZnO, TiO.sub.2, SnO.sub.2, Al.sub.2 O.sub.3, In.sub.2 O.sub.3, SiO.sub.2, MgO, BaO, and MoO.sub.3, or a compound oxide thereof having a volume resistivity of 10.sup.7 .OMEGA. cm or less.
    Type: Grant
    Filed: January 15, 1982
    Date of Patent: July 19, 1983
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Hideo Kawaguchi, Takayuki Inayama, Masaaki Takimoto, Yoshihiro Ono
  • Patent number: 4369242
    Abstract: The present invention relates to novel electrophotographic imaging systems and particularly to novel electrophotographic photoreceptors. These photoreceptors comprise a conductive substrate, an inorganic barrier-charge transport layer, and a photoconductive insulative layer. The barrier charge transport layer comprises aluminum oxide having a non-porous zone adjacent the substrate, and a porous charge transport zone.
    Type: Grant
    Filed: August 5, 1981
    Date of Patent: January 18, 1983
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Padmanabham A. Arimilli, Frank E. Aspen
  • Patent number: 4314022
    Abstract: A developing solution for use with imaging film comprising a photoresist layer over an aluminum coated substrate and the process of developing the film are shown to be rapid acting. The developing solution comprises an aqueous solution having a pH of at least 12.5 of an alkali metal hydroxide and a chelating agent having a stability constant for Al.sup.+3 of at least 6.70.
    Type: Grant
    Filed: May 5, 1980
    Date of Patent: February 2, 1982
    Assignee: Minnesota Mining and Manufacturing Company
    Inventor: Richard S. Fisch
  • Patent number: 4292388
    Abstract: A metal image-forming material comprising a base, a photosensitive resin layer formed thereon, and a layer of an aluminum/iron alloy formed between the base and the resin layer. The aluminum/iron alloy layer has superior etchability, and the image-forming material affords images having high contrast and resolving power. The image-forming material is especially suitable for linework and dot etching.
    Type: Grant
    Filed: November 14, 1978
    Date of Patent: September 29, 1981
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Tomoaki Ikeda, Masamiti Sigyoo, Sadaharu Ikeda, Satoshi Yoshida, Takeshi Tomotsu
  • Patent number: 4291119
    Abstract: A recording material comprising a support having thereon a layer containing (i) at least one metal and (ii) a layer containing one or more metal sulfides other than GeS, metal fluorides or metal oxides. A mono-layer mixture of (i) and (ii) may also be used.
    Type: Grant
    Filed: January 23, 1980
    Date of Patent: September 22, 1981
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Keishiro Kido, Satoshi Yoshida, Tomoaki Ikeda
  • Patent number: 4284711
    Abstract: An improved presensitized printing plate comprises at least one metal working surface, a cobalt layer electroplated on the outer working surface of said at least one metal working surface, and a coating of light sensitive material directly deposited on said cobalt layer.A method is also described which makes use of metallic cobalt for the preparation of presensitized printing plates in order to provide layers that are in themselves adherent to light sensitive materials without the need of using adhesives, and are useful for directly depositing light sensitive coatings thereon.
    Type: Grant
    Filed: August 21, 1979
    Date of Patent: August 18, 1981
    Inventor: Armando Birlain-Noris
  • Patent number: 4277555
    Abstract: Aluminum substrate suitable for making lithographic plates which has been treated to render the surface hydrophilic and negatively charged and thereafter ionically colored with a cationic dye.
    Type: Grant
    Filed: October 12, 1979
    Date of Patent: July 7, 1981
    Assignee: Howard A. Fromson
    Inventors: Howard A. Fromson, Robert F. Gracia
  • Patent number: 4266009
    Abstract: A novel imaging material comprising a substrate; a lead layer thereon including at least 20% by weight of lead and having a substantially dome shaped grain structure; and a stabilizing layer formed on said lead layer and comprising a specific metallic element or an organic polymer. The imaging material has a gradation, an excellent resolution and an improved storage stability. The imaging material can form an image thereon by a dry process even in a light room without the conventional development step.
    Type: Grant
    Filed: November 2, 1978
    Date of Patent: May 5, 1981
    Assignee: Asahi Kasei Kogyo Kabushiki Kaisha
    Inventors: Takeshi Ueda, Kiichiro Sasaguri, Hidehiko Kobayashi
  • Patent number: 4264707
    Abstract: A photographic material comprising a light sensitive photographic layer and a support having thereon in order a layer containing alumina sol including colloidal particles and an electrolyte and a layer containing a hydrophobic polymer.
    Type: Grant
    Filed: October 13, 1978
    Date of Patent: April 28, 1981
    Assignee: Konishiroku Photo Industry Co., Ltd.
    Inventors: Takahiro Uozumi, Tohru Kobayashi, Koichi Nagayasu
  • Patent number: 4207106
    Abstract: A light-sensitive copying material comprising at least two organic coating layers on a support, at least one of the coating layers being a light-sensitive layer which comprises an O-quinone diazide compound whose alkali solubility is increased by irradiation with active rays.
    Type: Grant
    Filed: May 10, 1978
    Date of Patent: June 10, 1980
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Masaru Odawara, Tadao Yoyama, Azusa Ohashi
  • Patent number: 4205989
    Abstract: There is disclosed a dry system image producing element comprising a substrate, a thin metal layer and a photosensitive layer. After exposing the element to light through a desired pattern, the photosensitive layer is peeled off to obtain a light barrier pattern made from the metal on the substrate corresponding to the photosensitized portion.
    Type: Grant
    Filed: August 17, 1978
    Date of Patent: June 3, 1980
    Assignee: Kimoto & Co., Ltd.
    Inventors: Takeo Moriya, Toshio Yamagata
  • Patent number: 4202699
    Abstract: A radiation sensitive composition comprises a quaternary ammonium salt and a chemical sensitizer of the formula ##STR1## wherein R.sup.21 is aryl, arylalkenyl or arylalkyl, R.sup.22 is aryl, alkyl, arylalkenyl, arylalkyl, carboxylic acid or salt, or hydrogen and X is carboxylic acid or salt. The quaternary ammonium salt is of the type which will accept at least one electron on exposure to radiation to form a substance capable of causing metal to be deposited onto said substance from an electroless plating solution in contact with said substance and comprising a salt of said metal and a reducing agent. A radiation sensitive plate comprises a metallic substrate coated with a radiation sensitive layer comprising a quaternary ammonium salt. The layer may be formed of the above composition.
    Type: Grant
    Filed: August 7, 1978
    Date of Patent: May 13, 1980
    Assignee: Vickers Limited
    Inventors: John M. Kitteridge, Robert J. Armstrong
  • Patent number: 4201836
    Abstract: A method for the production of aluminum substrates useful in the production of lithographic printing plates which comprises graining the surface of an aluminum sheet in a saturated solution of an aluminum salt of a mineral acid to which up to 10% of a mineral acid has been added, with optional electrolysis.
    Type: Grant
    Filed: August 28, 1978
    Date of Patent: May 6, 1980
    Assignee: Polychrome Corporation
    Inventor: Jen-Chi Huang
  • Patent number: 4197124
    Abstract: A planographic printing plate material comprising a support and a light sensitive layer provided on the support, the light-sensitive layer being composed of (A) an inorganic material; (B) at least one metal and/or metal compound [(A)/(B) are capable of reacting with each other upon application of electromagnetic radiation] and (C) an organic compound capable of affecting the reaction between the inorganic material (A) and the metal and/or metal compound (B), wherein the inorganic material (A), the metal or metal compound (B), and the organic compound (C) are in contact with each other. When the light-sensitive layer is exposed to electromagnetic radiation, a difference in the hydrophilic or oleophilic nature of the exposed areas and the unexposed areas results, whereby a planographic printing plate is obtained which can be mounted on a printing machine and printed without any other treatments.
    Type: Grant
    Filed: February 6, 1978
    Date of Patent: April 8, 1980
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Tomoaki Ikeda, Yuzo Mizobuchi, Fumiaki Shinozaki, Akira Nahara, Yoshihiro Ono, Yasuo Washizawa, Satoshi Yoshida, Takeshi Tomotsu