Patents Assigned to Toyo Ink Mfg. Co., Ltd.
  • Patent number: 5193126
    Abstract: Image deformation apparatus has memory units for storing image data, and coordinate transformation units for transforming coordinates of image data stored in the memory units so that the image data in the memory units can be treated as a two-dimensional image with use of a two-dimensional coordinate transformation unit. This enables formation of two-dimensional images such as magnified images and reduced images and the like, processed by two-dimensional image deformation.
    Type: Grant
    Filed: January 18, 1991
    Date of Patent: March 9, 1993
    Assignee: Toyo Ink Mfg. Co., Ltd.
    Inventor: Hiroshi Matsuki
  • Patent number: 5185850
    Abstract: To practice a method of transforming color sensation informations such that multidimensional physical informations and color sensation informations sensed by living bodies in response to the physical informations are non-linearly transformed therebetween, a multilayer feedforward type neural network is used for the purpose of accomplishing the foregoing transformation. The physical informations are provided in the form of data derived from multidimensional spectral distribution of light and the color sensation informations are provided in the form of sensitive colors each sensed by the living bodies as a psychological quantity relative to a certain color.
    Type: Grant
    Filed: November 30, 1990
    Date of Patent: February 9, 1993
    Assignees: Toyo Ink Mfg. Co., Ltd., Shiro Usui
    Inventors: Shiro Usui, Shigeki Nakauchi, Masae Nakano
  • Patent number: 5184213
    Abstract: The binarizing method uses a diffusion coefficient matrix for error diffusion that has a two dimensional frequency and fixedly corresponds to each pixel of the input image, and error that is produced by comparing the referred input pixel value and threshold value is divided in the proportion of the diffusion coefficients in the sub matrix of the diffusion coefficient matrix and those divided errors are added to pixels neighboring the referred pixel, and the diffusion coefficient matrixes for each color are rotated with mutually different angles in the case of color printing.
    Type: Grant
    Filed: March 19, 1991
    Date of Patent: February 2, 1993
    Assignee: Toyo Ink Mfg. Co., Ltd.
    Inventor: Roh Ishida
  • Patent number: 5106905
    Abstract: A heat resistant colorant for mass-coloring polyester such as polyethylene terephthalate, containing 100 parts of pigments and/or dyes and 42.about.2,000 parts of a liquid aliphatic polyester dispersing medium having a viscosity at 25.degree. C. not exceeding 150 poises and a hydroxyl value not exceeding 25 mgKOH/g. The dispersing medium contains a polycondensate of alkylene glycols including at least 30% by weight of 1,3-butanediol with at least one aliphatic dicarboxylic acid, which polycondensate has at least one terminal group blocked with a monohydric alcohol. The colorants are easily blended and uniformly dispersed in a fiber grade polyester, without causing degradation of the polyester. Fibers mass-colored by the colorant are excellent in stability during their manufacture and uniform in quality.
    Type: Grant
    Filed: January 23, 1991
    Date of Patent: April 21, 1992
    Assignees: Nippon Ester Company, Ltd., Kanebo, Ltd., Toyo Ink Mfg. Co., Ltd.
    Inventors: Shosuke Oku, Noboru Watanabe, Tsuneo Ohkawara, Fumio Hirota, Tsutomu Kado
  • Patent number: 4999267
    Abstract: This invention relates to a photosensitive member having a laminated photosensitive layer constituted by a charge generating layer and a charge transporting layer on an electrically conductive substrate, wherein the charge generating layer comprises a phthalocyanine compound as a charge generating material and an additive selected from the group consisting of indoles having a primary amino group, indazoles having a primary amino group, planar monocyclic compounds of five-membered ring or more having a primary amino group, anthrones represented by the general formula [I] below and acridones represented by the general formula [II] below; ##STR1## wherein n and m are an integer of 0-3 respectively; R.sub.1 and R.sub.2 are independently an alkyl group, an alkoxy group, an amino group, a hydroxy group, a halogen atom or a nitro group; when n is 2 or more, each R.sub.1 may be same or different; when m is 2 or more, each R.sub.2 may be same or different.
    Type: Grant
    Filed: October 4, 1989
    Date of Patent: March 12, 1991
    Assignees: Minolta Camera Kabushiki Kaisha, Toyo Ink Mfg. Co., Ltd.
    Inventor: Mitsutoshi Sakamoto
  • Patent number: 4955550
    Abstract: A quantitative feeding apparatus usable for pulverized and/or granular material, a multi-colored automatic feeding apparatus in which the material to be handled is fed in the form of a master batch while the quantitative feeding apparatus is used therefor and a runner recycling apparatus are provided. At every time when the kind of color is to be changed to another one, it is necessary that the quantitative feeding apparatus using the master batch therefor is heretofore disassembled for the purpose of cleaning with the result that a number of manhours are consumed for cleaning operation. In view of the foregoing problem, a plurality of cleaning nozzles directed toward the upper feeding port of the quantitative feeding apparatus, the feeder and the bottom discharging part are arranged for the purpose of cleaning whereby automatic cleaning can be achieved satisfactorily.
    Type: Grant
    Filed: November 3, 1988
    Date of Patent: September 11, 1990
    Assignees: Toyota Jidosha Kabushiki Kaisha, Toyo Ink Mfg. Co., Ltd.
    Inventors: Hideo Satake, Hideo Shimizu, Hozumi Tanaka
  • Patent number: 4923762
    Abstract: A precoated steel sheet for a two-piece can, which comprises: a steel sheet; a precoating film formed on one surface of the steel sheet, which is to be the outer surface of a two-piece can, by applying a precoating composition onto the one surface of the steel sheet and curing same; and another precoating film formed on the other surface of the steel sheet, which is to be the inner surface of the two-piece can, by applying another precoating composition onto the other surface of the steel sheet and curing same. The above-mentioned precoating composition comprises a thermosetting coating material and an internal lubricant having a content ratio within the range of from 0.1 to 30 weight parts relative to 100 weight parts of a resin as a solid content in the thermosetting coating material.
    Type: Grant
    Filed: July 19, 1989
    Date of Patent: May 8, 1990
    Assignees: NKK Corporation, Toyo Ink Mfg. Co., Ltd.
    Inventors: Hiroshi Ishikawa, Naoki Gunji, Yoshinori Hoshino, Taro Ohyama
  • Patent number: 4902596
    Abstract: A toner for use in electrophotography comprising thermoplastic resin core particles (A) or colorant-embedded thermoplastic resin core particles (A') each having an average particale size of 1 to 15 .mu.m, a charge-controlling agent (B) and carrier particles (C) having an average particle size of 0.05 to 2.0 .mu.m, the charge-controlling agnet (B) being carried on the carrier particles (C), and the carrier particles (C) with the agent (B) carried thereon being embedded in the surfaces of the resin core particles (A) or the colorant-embedded resin core particles (A').
    Type: Grant
    Filed: December 28, 1987
    Date of Patent: February 20, 1990
    Assignee: Toyo Ink Mfg, Co., Ltd
    Inventors: Masumi Koishi, Masuyuki Takada, Akio Kazama, Yukio Kawashima
  • Patent number: 4879335
    Abstract: A black liquid colorant for dope dyeing of polyester fibers, comprising 5-50 wt % carbon black obtained by wet-oxidation with peroxide and subsequent neutralization of a gas phase oxidized carbon black, and 95-50 wt % liquid dispersion medium such as liquid polyester. Black polyester fibers, typically polyethylene terephthalate fibers, dope-dyed with preferably 3-15 wt % base on the polyester of said black liquid colorant, have a deep blackness with a bluish tone and neither polymer deterioration nor filament breakage is observed.
    Type: Grant
    Filed: September 22, 1987
    Date of Patent: November 7, 1989
    Assignees: Toyo Ink Mfg. Co., Ltd., Nippon Ester Company Ltd.
    Inventors: Fumio Hirota, Tsutomu Kado, Shosuke Oku, Noboru Watanabe
  • Patent number: 4861647
    Abstract: A precoating for a two-piece can, comprising a thermosetting coating and an internal lubricant. The internal lubricant comprises a modified hydrocarbon wax having a structure in which a plurality of repeated units of a fluorine atoms substituted olefin are combined with a hydrocarbon wax.
    Type: Grant
    Filed: March 14, 1988
    Date of Patent: August 29, 1989
    Assignees: Nippon Kokan Kabushiki Kaisha, Toyo Ink Mfg. Co., Ltd.
    Inventors: Hiroshi Ishikawa, Hiroshi Takano, Ryosuke Ohtomo, Yoshinori Hoshino, Taro Ohyama
  • Patent number: 4835576
    Abstract: In the negative form of lith type film or photographic printing paper, the ground part is light-untransmissible and image part (letter, pattern) is light-transmissible. Apart from them, pinholes and stains also constitute light-transmissible areas. Although the light-transmissible areas of letter and pattern are necessary, the light-transmissible areas of pinhole and stain are unnecessary. Thus, the unnecessary light-transmissible areas must be distinguished from the necessary light-transmissible areas, and an opaque layer must be provided on the unnecessary areas to make them opaque. Generally, however, the unnecessary light-transmissible areas are minute and many in number, so that their detection and opaquing is a very laborious work. Thus, according to the opaquing method of the present invention, only the necessary light-transmissible area is detected and the other light-transmissible areas are regarded as unnecessary and the latter are stopped out.
    Type: Grant
    Filed: October 14, 1987
    Date of Patent: May 30, 1989
    Assignee: Toyo Ink Mfg. Co., Ltd.
    Inventors: Keiji Komori, Masaru Ohta, Takashi Sawada, Masaaki Matsuo
  • Patent number: 4810733
    Abstract: A color concentrate which comprises (a) one or more of polypropylene resins and propylene copolymers having a melt flow rate in the range of 0.1-100, (b) one or more of organic and inorganic pigments; and (c) one or more pigment dispersants selected from the group consisting of polyethylene wax, polypropylene wax and derivatives thereof, zinc stearate, magnesium stearate, aluminium stearate, calcium stearate and ethylene bisamide, the contents of (a), (b) and (c) being, respectively, 11-30 wt %, 10-80 wt % and 10-50 wt % based on the total of (a), (b) and (c); and molded or extruded articles of thermoplastic resins other than (a) colored with the color concentrate.
    Type: Grant
    Filed: October 19, 1987
    Date of Patent: March 7, 1989
    Assignee: Toyo Ink Mfg Co., Ltd
    Inventors: Noburu Sakuma, Hideo Shimizu
  • Patent number: 4708909
    Abstract: This invention concerns a radiation-curable, magnetic coating material and a magnetic recording medium made with the coating, which is characterized in that a water-soluble or water-dispersed resin having at least one radiation-curable, unsaturated double is contained as a vehicle. The vehicle may also contain a water-soluble or water-dispersible resin, or mixtures thereof free from such an unsaturated double bond. The invention provides a magnetic recording medium with improved durability, softness, flexibility, and heat resistance.
    Type: Grant
    Filed: November 19, 1986
    Date of Patent: November 24, 1987
    Assignee: Toyo Ink Mfg. Co., Ltd.
    Inventors: Akira Ohtsuki, Ryozo Konno, Nobumori Kanno, Makio Sugai, Takashi Mihoya, Yuichi Kubota, Masaharu Nishimatsu, Yukihiro Isobe, Kazushi Tanaka, Osamu Shinoura
  • Patent number: 4639272
    Abstract: A liquid colorant for ABS resins is described, comprising 100 parts by weight of a pigment or dye and 25 to 2,000 parts by weight of a liquid polyester, and having a viscosity of 1,500 poises or less at room temperature. This liquid polyester is prepared mainly from an aliphatic dicarboxylic acid and a dihydric alcohol, and usually has a viscosity of 10 to 1,500 poises at room temperture. The liquid colorant has advantages such as (1) the dispersibility of the pigment is good, (2) the colorant can be weighed precisely, (3) the colorant does not deteriorate the appearence of the molded article, and (4) the colorant does not deteriorate the physical properties of the molded article.
    Type: Grant
    Filed: June 26, 1985
    Date of Patent: January 27, 1987
    Assignees: Toyo Ink Mfg., Co., Ltd., Toyoto Jidosha Kabushiki Kaisha
    Inventors: Masashi Ito, Toshio Ohashi, Katsumi Ui
  • Patent number: 4618554
    Abstract: An electrophotographic photoreceptor which has excellent electrophotographic characteristics even when exposed to high-temperature and high-humidity conditions is formed from a phthalocyanine which has been treated with an acrylic resin, the acrylic resin having been obtained by polymerization of not less than 15 mole % of a monomer represented by the general formula, ##STR1## wherein R.sub.1 and R.sub.2 independently represent a hydrogen atom or an alkyl, aryl or cycloalkyl group, or R.sub.1 and R.sub.2, taken together, may form a heterocyclic-ring containing a nitrogen atom, R.sub.3 represents a hydrogen atom or methyl group, and n represents an integer of 1 or more, or an acid salt of the monomer.
    Type: Grant
    Filed: March 26, 1985
    Date of Patent: October 21, 1986
    Assignees: Toyo Ink Mfg. Co., Ltd., Minolta Camera Kabushiki Kaisha
    Inventors: Masato Ohashi, Motohiko Kashioka, Shinichi Tamura, Hiromitsu Katsura, Hideaki Ueda, Akihiro Nakamura
  • Patent number: 4592977
    Abstract: The present invention relates to a lithographic printing plate which can eliminate disadvantages of conventional zinc oxide master papers and has sensitivity sufficient for practical use in respect of long wavelength laser light. The invention contemplates to provide the lithographic printing plate which is fabricated by charging an electrophotographic plate involving a photoconductive layer on a conductive substrate, the photoconductive layer being prepared by dispersing a mixture containing 50 wt % or less of a phthalocyanine pigment/(zinc oxide and zinc sulfide) into a binder resin, exposing the electrophotographic plate to an image to form the electrostatic latent image, developing the exposed electrophotographic plate by the use of an ink receptive toner, and fixing the plate thus developed.
    Type: Grant
    Filed: June 19, 1984
    Date of Patent: June 3, 1986
    Assignees: Toppan Printing Co., Ltd., Toyo Ink Mfg. Co., Ltd.
    Inventors: Tsutomu Naganuma, Sigeru Hirayama, Hiroji Kumagai, Manabu Sawada, Tsuneo Tanaka, Isao Kumano
  • Patent number: 4526837
    Abstract: This invention provides a magnetic recording medium with excellent electromagnetic characteristics and running durability. According to the invention, a magnetic powder is kneaded with a cross-linkable or polymerizable resin binder, together with a phosphoric ester having a polymerizable, unsaturated double bond or bonds, the resulting coating material is applied to a substrate, and then the coating is cross-linked or polymerized. The addition of the phosphoric ester in place of an ordinary dispersing agent improves the mechanical properties of the magnetic coating and the durability and running quality of the magnetic recording medium.
    Type: Grant
    Filed: April 23, 1982
    Date of Patent: July 2, 1985
    Assignees: Toyo Ink MFG. Co., Ltd., TDK Electronics Co., Ltd.
    Inventors: Akira Ohtsuki, Ryozo Konno, Makio Sugai, Masaharu Nishimatsu, Yuichi Kubota, Kazushi Tanaka, Osamu Shinoura
  • Patent number: 4511629
    Abstract: In a magnetic recording medium made by applying a non-magnetic undercoat and a magnetic top coat on a base, the undercoat comprises a radiation-curable coating material which contains a compound with a molecular weight of not less than 400, having one type of double bond selected from among acrylic, allylic, and maleic double bonds, the undercoat being formed by exposure to radiation. Specifically, the undercoating material contains at least two types of compounds selected from (A) those having a molecular weight of over 5000, preferably over 8000 and having two or more double bonds selected as above, (B) those having a molecular weight of 400 or more but less than 500, preferably in the range of 600 to 3000, and two or more double bonds selected as above, and (C) those having a molecular weight of less than 400 and one or more double bonds selected from among acrylic, allylic, maleic, and styrenic double bonds.
    Type: Grant
    Filed: February 3, 1983
    Date of Patent: April 16, 1985
    Assignees: TDK Electronics Co., Ltd., Toyo Ink Mfg. Co., Ltd.
    Inventors: Ryozo Konno, Makio Sugai, Yuichi Kubota, Masaharu Nishimatsu, Yukihiro Isobe, Kazushi Tanaka, Osamu Shinoura
  • Patent number: 4045399
    Abstract: A curable aqueous coating composition in which dicyandiamide or a salt of guanidine is mixed and dissolved in an aqueous solution of a salt of a copolymer of an acrylic monomer mixture containing an unsaturated carboxylic acid monomer and a hydroxyalkyl acrylate or methacrylate monomer.
    Type: Grant
    Filed: January 30, 1976
    Date of Patent: August 30, 1977
    Assignee: Toyo Ink Mfg. Co., Ltd.
    Inventors: Hiroo Suzuki, Isao Takada