Patents by Inventor Keiji Takeda

Keiji Takeda has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20080081899
    Abstract: This invention relates to a polyarylene sulfide oxide of which crystallization degree is 10% or higher by wide-angle X-ray diffraction measurement and a heat of fusion is 15 J/g or less by differential scanning calorimeter (DSC) measurements, and a production method of the same. There is provided a polyarylene sulfide oxide that excels in heat resistance, chemical resistance and moisture absorption resistance, and a production method of the same.
    Type: Application
    Filed: July 23, 2004
    Publication date: April 3, 2008
    Applicant: TORAY INDUSTRIES, INC.
    Inventors: Hideo Muraoka, Koji Yamauchi, Koji Sugano, Keiji Takeda
  • Publication number: 20070036983
    Abstract: This invention provides a moisture-permeable, waterproof film characterized in that it consists of two or more resin layers comprising, as polymerizing components, bishidroxyalkyl aliphatic acid and alkyleneglycol, said bishydroxyalkyl aliphatic acid content is 0.08 mmol/g to 0.5 mmol/g, at least a part of said alykyleneglycol is polyethylene glycol contained in an amount of 40 wt % to 80 wt % based on said solid resin, and a moisture permeability by JIS L-1099 “Potassium Acetate Method” (B-1 method) at average film thickness of 20 micrometers being not less than 3×103 g/m2·24 h and not more than 200×103 g/m2·24 h, and a moisture-permeable waterproof composite material to which said moisture-permeable, waterproof film is provided at least on one surface of a substrate material and its moisture permeability by JIS L-1099 “Potassium Acetate Method” (B-1 method) being not less than 1×103 g/m2·24 h and not more than 50×103 g/m2·24 h.
    Type: Application
    Filed: January 29, 2004
    Publication date: February 15, 2007
    Applicant: Toray Industries, Inc.
    Inventors: Keiji Takeda, Gen Koide
  • Publication number: 20040189595
    Abstract: An operating device for controlling a display screen, which includes a rotatable operating member of cylindrical shape, and a slidable operating member having a cylindrical tip portion located above an upper end of the rotatable operating member. The diameter of an upper surface of the slidable operating member cylindrical tip portion is reduced relative to a diameter of a lower surface of the cylindrical tip portion, and the diameter of the lower surface of the slidable operating member cylindrical tip portion is equal to or less than a diameter of an upper surface of the rotatable operating member. An operating device is provided which prevents a misoperation in slide operation and rotation operation and improves operability.
    Type: Application
    Filed: February 27, 2004
    Publication date: September 30, 2004
    Applicant: HONDA MOTOR CO., LTD.
    Inventors: Go Yuasa, Masaki Sato, Morihisa Iwamoto, Yasuhiro Konishi, Keiji Takeda
  • Patent number: 6787487
    Abstract: The present invention provides a highly durable, moisture-permeable, waterproof material that is high in moisture-permeability and waterproofness and able to achieve good adhesion with such a coat layer as moisture-permeable, water-resistant layer and with such a fibrous structural material as fabric, and a method for the production thereof. The moisture-permeable, waterproof material of the invention comprises a moisture-permeable, water-resistant layer, a fibrous structural material, and a water-swellable adhesive layer interposed between the former two to adhere them together, wherein the surfaces of the single fibers comprising said fibrous structural material are coated with a pre-treating agent containing a polyhydric compound as main component, said fibrous structural material and said water-swellable adhesive layer being adhered via the pre-treating agent.
    Type: Grant
    Filed: June 15, 2001
    Date of Patent: September 7, 2004
    Assignee: Toray Industries, Inc.
    Inventors: Keiji Takeda, Jiro Amano
  • Patent number: 5328800
    Abstract: The present invention provides 4 embodiments of a new image forming method. The image forming method uses a light-sensitive material and an image receiving material. The light-sensitive material comprises a support and a light-sensitive polymerizable layer provided thereon. The light-sensitive polymerizable layer contains silver halide, a reducing agent, an ethylenically unsaturated polymerizable compound or/and a cross-linkable polymer and a colorant. The image forming method comprises an exposing step, a developing step, a removing step, a transferring step and a repeating step. Some embodiments of the method further contain a laminating step. The present invention is characterized in that a multicolor image is formed on an image receiving material by the repeating step.
    Type: Grant
    Filed: May 6, 1992
    Date of Patent: July 12, 1994
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Hiroaki Yokoya, Keiji Takeda, Osami Tanabe, Katsuji Kitatani
  • Patent number: 5326667
    Abstract: The present invention provides 6 embodiments of a new image forming method. The image forming method uses a light-sensitive material and an image receiving material. The light-sensitive material comprises a support and a light-sensitive polymerizable layer provided thereon. Some embodiments of the light-sensitive material further have an adhesive layer. The light-sensitive polymerizable layer contains silver halide, a reducing agent and an ethylenically unsaturated polymerizable compound or/and a cross-linkable polymer. Some embodiments of the light-sensitive polymerizable layer further contain a colorant. The image forming method comprises an exposing step, a developing step, a removing step and a transferring step or a laminating step. Some embodiments of the image forming method further contains a peeling step or a toning step. The present invention is characterized in the combination of the removing step with the transferring step or the laminating step.
    Type: Grant
    Filed: May 6, 1992
    Date of Patent: July 5, 1994
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Hiroaki Yokoya, Keiji Takeda, Osami Tanabe, Katsuji Kitatani
  • Patent number: 5304454
    Abstract: The present invention provides 3 embodiments of a new image forming method. The image forming method uses a light-sensitive material and an removing sheet. The light-sensitive material comprises a support and a light-sensitive polymerizable layer provided thereon. Some embodiments of the light-sensitive material further have an adhesive layer. The light-sensitive polymerizable layer contains silver halide, a reducing agent and an ethylenically unsaturated polymerizable compound or/and a cross-linkable polymer. Some embodiments of the light-sensitive polymerizable layer further contain a colorant. The image forming method comprises an exposing step, a developing step and a removing step. Some embodiments of the image forming method further contains a toning step. The present invention is characterized in the removing step using a removing sheet.
    Type: Grant
    Filed: May 6, 1992
    Date of Patent: April 19, 1994
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Hiroaki Yokoya, Keiji Takeda, Osami Tanabe, Katsuji Kitatani
  • Patent number: 5290659
    Abstract: A light-sensitive material contains silver halide, a reducing agent and an ethylenically unsaturated polymerizable compound or/and a cross-linkable polymer. According to the present invention, the light-sensitive material comprises a support and at least three image forming functional layers. The layers include a light-sensitive layer, a polymerizable layer and an image formation accelerating layer. The light-sensitive layer contains silver halide. The polymerizable layer contains the ethylenically unsaturated polymerizable compound or/and the cross-linkable polymer. The image formation accelerating layer contains a component having a function of accelerating image formation. The component is selected from a reducing agent, a base, a base precursor and a heat development accelerator. The uppermost layer of the light-sensitive material preferably contains a polyvinyl alcohol having a saponification degree of not less than 70%. The light-sensitive material of the present invention is heat-developable.
    Type: Grant
    Filed: July 10, 1991
    Date of Patent: March 1, 1994
    Assignee: Fuji Photo Film Co., Ltd.
    Inventor: Keiji Takeda
  • Patent number: 5166040
    Abstract: An image recording method comprising imagewise exposing to light a light-sensitive material containing a light-sensitive silver halide, a reducing agent capable of developing a silver halide, a polymerizable vinyl monomer, and a thermal polymerization initiator, to form a latent image of the light-sensitive silver halide, and substantially uniformly heating the exposed light-sensitive material to imagewise polymerize the polymerizable vinyl monomer to form a polymer image, and an image recording material used, therefor are disclosed. The method provides a polymer image with photosensitivity comparable to conventional silver halide light-sensitive materials, which requires only a dry process, for a short time, and allows for use of a reduced amount of a silver halide.
    Type: Grant
    Filed: January 3, 1989
    Date of Patent: November 24, 1992
    Assignee: Fuji Photo Film Co., Ltd.
    Inventor: Keiji Takeda
  • Patent number: 5122443
    Abstract: A light-sensitive material contains silver halide, a reducing agent, an ethylenically unsaturated polymerizable compound or/and a cross-linkable polymer, and a base or/and a base precursor. According to the present invention, the light-sensitive material comprises a support, a polymerizable layer and a light-sensitive layer in the order. The polymerizable layer contains the ethylenically unsaturated polymerizable compound or/and the cross-linkable polymer. The light-sensitive layer contains silver halide, and a base or/and a base precursor. The reducing agent is contained in the polymerizable layer or/and the light-sensitive layer. A protective layer is preferably provided on the light-sensitive layer. The light-sensitive material of the present invention is heat-developable. The present invention is based on a new discovery that a light-sensitive material comprising a polymerizable layer and a light-sensitive layer can be developed by heat.
    Type: Grant
    Filed: October 31, 1990
    Date of Patent: June 16, 1992
    Assignee: Fuji Photo Film Co., Ltd.
    Inventor: Keiji Takeda
  • Patent number: 5053312
    Abstract: Disclosed are an image-receiving material comprising a support and an image-receiving layer provided thereon which contains a developer and a binder polymer mixture composed of at least two kinds of water-soluble polymers which undergo phase separation in the mixed state. This image-receiving material is advantageously employed in an image-forming method which comprises the steps of imagewise exposing to light a light-sensitive material comprising a support and a light-sensitive layer containing silver halide, a reducing agent, and an ethylenically unsaturated polymerizable compound; simultaneously or thereafter developing the light-sensitive material; and pressing the light-sensitive material on the image-receiving material to transfer the unpolymerized polymerizable compound to the image-receiving layer.
    Type: Grant
    Filed: December 12, 1988
    Date of Patent: October 1, 1991
    Assignee: Fuji Photo Film Co., Ltd.
    Inventor: Keiji Takeda
  • Patent number: 5053308
    Abstract: A light-sensitive composition in which microcapsules having a core material comprising a silver halide emulsion are dispersed in a polymerizable compound, and a light-sensitive material comprising a light-sensitive layer containing the light-sensitive composition and a reducing agent provided on a support.
    Type: Grant
    Filed: July 20, 1990
    Date of Patent: October 1, 1991
    Assignee: Fuji Photo Film Co., Ltd.
    Inventor: Keiji Takeda
  • Patent number: 5041353
    Abstract: A process for preparation of a light-sensitive material is disclosed. The light-sensitive material comprises a support and a light-sensitive layer which contains light-sensitive silver halide, a reducing agent, a base precursor and an ethylenic unsasturated polymerizable compound. The process comprises emulsifying an aqueous dispersion of a base precursor in an oily medium containing the polymerizable compound in the range of 0.1 to 100 weight %.
    Type: Grant
    Filed: December 31, 1990
    Date of Patent: August 20, 1991
    Assignee: Fuji Photo Film Co., Ltd.
    Inventor: Keiji Takeda
  • Patent number: 4970307
    Abstract: A process for formation of a base from a base precursor, which comprises decomposing the base precursor in the presence of a catalyst. The base precursor has the following formula (I) or (II):(R.sup.1 --C.tbd.C--CO.sub.2 H).sub.x .multidot.B (I)R.sup.2 (--C.tbd.C--CO.sub.2 H).sub.2 .multidot.B.sub.y (II)wherein R.sup.1 is a monovalent group selected from the group consisting of hydrogen, an alkyl group, a cycloalkyl group, an alkenyl group, an alkynyl group, an aryl group, a heterocyclic group, an aralkyl group, an acyl group, an alkoxycarbonyl group, carbamoyl, --CO.sub.2 M (M is an alkali metal) and --CO.sub.2 H.B, each of which may have one or more substituent groups; R.sup.
    Type: Grant
    Filed: August 13, 1987
    Date of Patent: November 13, 1990
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Keiji Takeda, Jiro Tsukahara, Kozo Sato
  • Patent number: 4859568
    Abstract: A method for recording a photographic image on an image-recording material is provided, wherein an image-recording material formed by coating at least a photographic silver halide, a polymerizable vinyl monomer, and a hydrazine derivative represented by formula (I) ##STR1## wherein X represents a hydrogen atom, an alkyl group, or a group represented by ##STR2## positioned in an ortho-, meta-, or para-position on the benzene ring; Y represents ##STR3## or --SO.sub.2 --; R.sub.1, R.sub.2, R.sub.3, and R.sub.4 each represents a hydrogen atom, an unsubstituted alkyl group, or a substituted alkyl group, provided that R.sub.1 represents a hydrogen atom only when Y represents ##STR4## on a support is imagewise exposed to form a latent image in said photographic silver halide and then heated so as to polymerize said polymerizable vinyl monomer in the part having said latent image to form a polymer image therein.
    Type: Grant
    Filed: April 27, 1987
    Date of Patent: August 22, 1989
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Keiji Takeda, Yoshihide Hayakawa
  • Patent number: 4784932
    Abstract: An image-forming method which comprises:imagewise exposing a light-sensitive material comprising a light-sensitive layer provided on a support wherein the light-sensitive layer contains silver halide, a reducing agent, a polymerizable compound and a color image forming substance;simultaneously or thereafter developing the light-sensitive material to polymerize the polymerizable compound within the area where the latent image of the silver halide has been formed, and thereby fixing the color image forming substance on the support within the area;pressing the light-sensitive material on an image-receiving material comprising an image-receiving layer provided on a support wherein the image-receiving layer contains a granulated thermoplastic compound, to transfer the unfixed color image forming substance to the image-receiving material; andheating the image-receiving material.
    Type: Grant
    Filed: March 11, 1987
    Date of Patent: November 15, 1988
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Taku Nakamura, Keiji Takeda
  • Patent number: 4649098
    Abstract: An image recording process and image recording material are described, said material comprising a support having provided thereon at least one light-sensitive layer containing in a binder a light-sensitive silver halide, a polymrizable vinyl monomer, a photopolymerization initiator and a reducing agent which has a function as a developing agent for silver halide and a function as a polymerization inhibitor for the polymerizable vinyl monomer, but loses the function as a polymerization inhibitor after development of silver halide, and said process comprising imagewise exposure, heating and uniform light exposure.
    Type: Grant
    Filed: September 23, 1985
    Date of Patent: March 10, 1987
    Assignee: Fuji Photo Film Co., Ltd.
    Inventor: Keiji Takeda
  • Patent number: 4632899
    Abstract: An image-recording process is disclosed, which comprises using a photopolymerizable element comprising a polymerizable vinyl monomer and/or a polymerizable prepolymer, a photopolymerization initiator and a dye capable of being bleached with said vinyl monomer and/or prepolymer or a dye precursor capable of producing the bleachable dye upon being heated, conducting imagewise exposure to polymerize the photopolymerizable element, and heating it to bleach the dye with non-polymerized monomer and/or non-polymerized prepolymer remaining in portions not exposed or exposed or to bleach dye produced from the dye precursor upon heating. A negative working image-recording material for this process is also disclosed.
    Type: Grant
    Filed: December 3, 1984
    Date of Patent: December 30, 1986
    Assignee: Fuji Photo Film Co., Ltd.
    Inventor: Keiji Takeda
  • Patent number: 4624910
    Abstract: The present invention relates to an image recording process which comprises a step of (i) imagewise exposing a layer containing at least silver halide of an image recording material comprising (a) silver halide, (b) a reducing agent capable of developing silver halide, (c) a photopolymerization sensitizing dye capable of being reduced into a leuco substance by said reducing agent, and (d) a polymerizable vinyl monomer, to light to form a latent image, a step of (ii) uniformly heating said recording material to form a photopolymerization sensitizing dye image in a part corresponding to said latent image, and thereafter a step of (iii) uniformly exposing a layer containing at least said formed photopolymerization sensitizing dye image and said polymerizable vinyl monomer to light to form a polymer image in the part where said photopolymerization sensitizing dye image is present, by photopolymerization.
    Type: Grant
    Filed: May 28, 1985
    Date of Patent: November 25, 1986
    Assignee: Fuji Photo Film Co., Ltd.
    Inventor: Keiji Takeda
  • Patent number: 4421838
    Abstract: A photoconductive element comprising elemental selenium dispersed in an insulating polymer is prepared by reducing an inorganic selenium compound in the presence of the insulating polymer. The invention also provide a process for preparing an electrophotosensitive material having a photoconductive layer in which reduction of the inorganic selenium compound is performed in a layer coated on a conductive support.
    Type: Grant
    Filed: April 20, 1981
    Date of Patent: December 20, 1983
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Keiji Takeda, Mitsuharu Nirasawa, Masayoshi Nagata