Patents by Inventor Shunji Takada

Shunji Takada 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).

  • Patent number: 9034419
    Abstract: A silver salt-containing layer containing a silver salt and provided on a support is exposed and developed to form a metal silver portion and a light-transmitting portion, and then the metal silver portion is further subjected to physical development and/or plating to form a conductive metal portion consisting of the metal silver portion carrying conductive metal particles. A method for producing a light-transmitting electromagnetic wave-shielding film which enables production of an electromagnetic wave-shielding material simultaneously having high EMI-shielding property and high transparency in a fine line pattern and also enables mass production of such films at a low cost, and a light-transmitting electromagnetic wave-shielding film obtained by the production method and free from the problem of moire are provided.
    Type: Grant
    Filed: December 22, 2008
    Date of Patent: May 19, 2015
    Assignee: FUJIFILM Corporation
    Inventors: Hirotomo Sasaki, Ryou Nishizakura, Kiyoshi Morimoto, Shunji Takada
  • Patent number: 8492296
    Abstract: A silver salt-containing layer containing a silver salt and provided on a support is exposed and developed to form a metal silver portion and a light-transmitting portion, and then the metal silver portion is further subjected to physical development and/or plating to form a conductive metal portion consisting of the metal silver portion carrying conductive metal particles. A method for producing a light-transmitting electromagnetic wave-shielding film which enables production of an electromagnetic wave-shielding material simultaneously having high EMI-shielding property and high transparency in a fine line pattern and also enables mass production of such films at a low cost, and a light-transmitting electromagnetic wave-shielding film obtained by the production method and free from the problem of moire are provided.
    Type: Grant
    Filed: June 30, 2008
    Date of Patent: July 23, 2013
    Assignee: FUJIFILM Corporation
    Inventors: Hirotomo Sasaki, Ryou Nishizakura, Kiyoshi Morimoto, Shunji Takada
  • Patent number: 7537800
    Abstract: A silver salt-containing layer containing a silver salt and provided on a support is exposed and developed to form a metal silver portion and a light-transmitting portion, and then the metal silver portion is further subjected to physical development and/or plating to form a conductive metal portion consisting of the metal silver portion carrying conductive metal particles. A method for producing a light-transmitting electromagnetic wave-shielding film which enables production of an electromagnetic wave-shielding material simultaneously having high EMI-shielding property and high transparency in a fine line pattern and also enables mass production of such films at a low cost, and a light-transmitting electromagnetic wave-shielding film obtained by the production method and free from the problem of moire are provided.
    Type: Grant
    Filed: December 23, 2003
    Date of Patent: May 26, 2009
    Assignee: FUJIFILM Corporation
    Inventors: Hirotomo Sasaki, Ryou Nishizakura, Kiyoshi Morimoto, Shunji Takada
  • Publication number: 20090110912
    Abstract: A silver salt-containing layer containing a silver salt and provided on a support is exposed and developed to form a metal silver portion and a light-transmitting portion, and then the metal silver portion is further subjected to physical development and/or plating to form a conductive metal portion consisting of the metal silver portion carrying conductive metal particles. A method for producing a light-transmitting electromagnetic wave-shielding film which enables production of an electromagnetic wave-shielding material simultaneously having high EMI-shielding property and high transparency in a fine line pattern and also enables mass production of such films at a low cost, and a light-transmitting electromagnetic wave-shielding film obtained by the production method and free from the problem of moire are provided.
    Type: Application
    Filed: December 22, 2008
    Publication date: April 30, 2009
    Applicant: FUJIFILM CORPORATION
    Inventors: Hirotomo SASAKI, Ryou Nishizakura, Kiyoshi Morimoto, Shunji Takada
  • Publication number: 20090011669
    Abstract: A silver salt-containing layer containing a silver salt and provided on a support is exposed and developed to form a metal silver portion and a light-transmitting portion, and then the metal silver portion is further subjected to physical development and/or plating to form a conductive metal portion consisting of the metal silver portion carrying conductive metal particles. A method for producing a light-transmitting electromagnetic wave-shielding film which enables production of an electromagnetic wave-shielding material simultaneously having high EMI-shielding property and high transparency in a fine line pattern and also enables mass production of such films at a low cost, and a light-transmitting electromagnetic wave-shielding film obtained by the production method and free from the problem of moire are provided.
    Type: Application
    Filed: June 30, 2008
    Publication date: January 8, 2009
    Applicant: FUJIFILM Corporation
    Inventors: Hirotomo SASAKI, Ryou Nishizakura, Kiyoshi Morimoto, Shunji Takada
  • Patent number: 7411620
    Abstract: A multilayer deposition multipixel image pickup device comprising a pixel unit, wherein the pixel unit comprises: a plurality of electromagnetic absorption layers being capable of absorbing electromagnetic waves of different wavelengths and performing photoelectric conversion; at least one pair of electrodes that sandwich each of electromagnetic absorption layers; a charge transfer and charge read part; and a plurality of contact parts that couple at least one of the electrodes and the charge transfer and charge read part, wherein a length between outermost surfaces of ones among electrodes of the pixel unit is smaller than a pixel size that is a circle-equivalent diameter of the same area as a first electromagnetic absorption layer of the electromagnetic absorption layers, the first electromagnetic absorption layer having a largest area in said plurality of electromagnetic absorption layers.
    Type: Grant
    Filed: March 18, 2005
    Date of Patent: August 12, 2008
    Assignee: FUJIFILM Corporation
    Inventors: Masato Taniguchi, Shunji Takada
  • Publication number: 20080176173
    Abstract: A silver salt-containing layer containing a silver salt and provided on a support is exposed and developed to form a metal silver portion and a light-transmitting portion, and then the metal silver portion is further subjected to physical development and/or plating to form a conductive metal portion consisting of the metal silver portion carrying conductive metal particles. A method for producing a light-transmitting electromagnetic wave-shielding film which enables production of an electromagnetic wave-shielding material simultaneously having high EMI-shielding property and high transparency in a fine line pattern and also enables mass production of such films at a low cost, and a light-transmitting electromagnetic wave-shielding film obtained by the production method and free from the problem of moire are provided.
    Type: Application
    Filed: August 30, 2007
    Publication date: July 24, 2008
    Inventors: Hirotomo Sasaki, Ryou Nishizakura, Kiyoshi Morimoto, Shunji Takada
  • Publication number: 20050205958
    Abstract: A multilayer deposition multipixel image pickup device comprising a pixel unit, wherein the pixel unit comprises: a plurality of electromagnetic absorption layers being capable of absorbing electromagnetic waves of different wavelengths and performing photoelectric conversion; at least one pair of electrodes that sandwich each of electromagnetic absorption layers; a charge transfer and charge read part; and a plurality of contact parts that couple at least one of the electrodes and the charge transfer and charge read part, wherein a length between outermost surfaces of ones among electrodes of the pixel unit is smaller than a pixel size that is a circle-equivalent diameter of the same area as a first electromagnetic absorption layer of the electromagnetic absorption layers, the first electromagnetic absorption layer having a largest area in said plurality of electromagnetic absorption layers.
    Type: Application
    Filed: March 18, 2005
    Publication date: September 22, 2005
    Inventors: Masato Taniguchi, Shunji Takada
  • Publication number: 20040229028
    Abstract: A silver salt-containing layer containing a silver salt and provided on a support is exposed and developed to form a metal silver portion and a light-transmitting portion, and then the metal silver portion is further subjected to physical development and/or plating to form a conductive metal portion consisting of the metal silver portion carrying conductive metal particles. A method for producing a light-transmitting electromagnetic wave-shielding film which enables production of an electromagnetic wave-shielding material simultaneously having high EMI-shielding property and high transparency in a fine line pattern and also enables mass production of such films at a low cost, and a light-transmitting electromagnetic wave-shielding film obtained by the production method and free from the problem of moire are provided.
    Type: Application
    Filed: December 23, 2003
    Publication date: November 18, 2004
    Applicant: FUJI PHOTO FILM CO., LTD.
    Inventors: Hirotomo Sasaki, Ryou Nishizakura, Kiyoshi Morimoto, Shunji Takada
  • Patent number: 6500607
    Abstract: A silver halide photographic material is disclosed, comprising a support having provided thereon at least one silver halide emulsion layer, wherein the silver halide emulsion layer contains, in the dispersion medium phase of the emulsion, one or more kinds of inorganic fine particles having a refractive index the total weight of the fine particles contained in the unit volume of the dispersion medium phase is from 1.0 to 95 wt %, the dispersion medium phase containing the fine particles is substantially transparent to the photosensitive peak wavelength light of the emulsion layer, and the photographic material is exposed and processed in the development process comprising at least a developing step and a fixing step.
    Type: Grant
    Filed: January 6, 2000
    Date of Patent: December 31, 2002
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Mitsuo Saitou, Yoichi Maruyama, Toshiyuki Nabeta, Masaaki Miki, Keiichi Miyazaki, Mikio Ihama, Shunji Takada, Norihiro Omae, Yasushi Tanabe
  • Publication number: 20020058214
    Abstract: A silver halide photographic material is disclosed, comprising a support having provided thereon at least one silver halide emulsion layer, wherein the silver halide emulsion layer contains, in the dispersion medium phase of the emulsion, one or more kinds of inorganic fine particles having a refractive index the total weight of the fine particles contained in the unit volume of the dispersion medium phase is from 1.0 to 95 wt %, the dispersion medium phase containing the fine particles is substantially transparent to the photosensitive peak wavelength light of the emulsion layer, and the photographic material is exposed and processed in the development process comprising at least a developing step and a fixing step.
    Type: Application
    Filed: January 6, 2000
    Publication date: May 16, 2002
    Inventors: Mitsuo Saitou, Yoichi Maruyama, Toshiyuki Nabeta, Masaaki Miki, Keiichi Miyazaki, Mikio Ihama, Shunji Takada, Norihiro Omae, Yasushi Tanabe
  • Patent number: 5985527
    Abstract: A silver halide photographic light-sensitive material has at least one silver halide emulsion layer on a support, wherein the silver halide emulsion layer contains a silver halide emulsion consisting of tabular silver halide grains not containing a cavity extending through two major planes opposing each other and having an average aspect ratio of 1.5 or more, except that 20% or more of the tabular silver halide grains started to be developed containing a cavity extending through the major planes when the silver halide emulsion was developed with a color developer containing a silver halide solvent and a p-phenylenediamine-based color developing agent for 60 sec. A method for forming images includes the step of performing color development for the material for 25 to 90 sec by using a color developing solution containing thiosulfate, methanethiosulfonate, thiocyanate or at least one of the silver halide solvents represented by the formula (A), (B), (C), (D) and (E) each defined in the specification.
    Type: Grant
    Filed: July 12, 1996
    Date of Patent: November 16, 1999
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Akimitsu Haijima, Shunji Takada
  • Patent number: 5851752
    Abstract: Disclosed is a silver halide photographic material comprising a support having provided thereon at least one silver halide emulsion layer comprising a substantially surface-latent-image-type silver halide emulsion which comprises hole-injection-type sensitizing dye(s) in an amount of 4.times.10.sup.-4 mol or more per mol of silver in the emulsion and further comprises supersensitizing compound(s), wherein the hole-injection-type sensitizing dye and the supersensitizing compound satisfy the requirements defined herein. The photographic material, thus comprising at least one silver halide emulsion that has been spectrally sensitized with a large amount of sensitizing dyes in a wavelength range longer than 545 nm and has been further sensitized by reduction sensitization, has a much increased sensitivity, while being fogged poorly, and has excellent storage stability.
    Type: Grant
    Filed: July 7, 1995
    Date of Patent: December 22, 1998
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Mitsuhiro Uchida, Shunji Takada
  • Patent number: 5643711
    Abstract: A silver halide photographic light-sensitive material having at least one light-sensitive silver halide emulsion layer on a support is disclosed. The light-sensitive silver halide emulsion layer contains tabular silver halide grains having an average aspect ratio of 2 or more and contains a compound represented by the following formula (I) and/or the oxidized product thereof:X.sub.1 --A--X.sub.2 Formula (I)wherein X.sub.1 and X.sub.2 each represent OR.sub.1 or ##STR1## wherein R.sub.1 represents a hydrogen atom or a group capable of being converted to a hydrogen atom upon hydrolysis, and R.sub.2 and R.sub.3 each represent hydrogen, alkyl, aryl, heterocyclic, heterocyclic sulfonyl, heterocyclic carbonyl, sulfamoyl, or carbamoyl, A represents arylene, and at least one of the groups representative of X.sub.1, X.sub.2, and A is substituted by a group which accelerates adsorption to a silver halide grain.
    Type: Grant
    Filed: January 10, 1994
    Date of Patent: July 1, 1997
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Shunji Takada, Yoichi Suga, Hiroyuki Kawamoto
  • Patent number: 5459027
    Abstract: Disclosed herein is a silver halide photographic light-sensitive material comprising at least one layer made of a silver halide emulsion comprising a dispersion medium and silver halide grains dispersed in the dispersion medium. Each of the silver halide grains contains a metal or metal ions other than silver. The emulsion has been chemically sensitized in the presence of a tellurium compound which has a pseudo-first order reaction rate constant k of 1.times.10.sup.-8 to 1.times.10.sup.-0 min.sup.-1. The metal is at least one polyvalent metal selected from the group consisting of Ir, Rh, Pd, Ru, Pt, Os, Fe, Ni and Co. The metal ions are ammonium salt, acetate, nitrate, sulfate, phosphate, hydroxide, or complex salt of the metal. Telluroketones or phosphinetellurides is used as the tellurium compound. It is desirable that the silver halide emulsion is a monodispersed emulsion having a variation coefficient of 22% or less.
    Type: Grant
    Filed: March 2, 1993
    Date of Patent: October 17, 1995
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Shunji Takada, Hiroyuki Mifune, Tetsuro Kojima
  • Patent number: 5389508
    Abstract: A silver halide photographic light-sensitive material comprising at least one light-sensitive silver halide emulsion layer formed on a support. The emulsion layer containing at least one silver halide emulsion which comprises regular-crystal grains having a silver halide phase containing silver iodide. The silver halide phase has been formed while iodide ions are rapidly being generated.
    Type: Grant
    Filed: March 19, 1993
    Date of Patent: February 14, 1995
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Shunji Takada, Morio Yagihara, Hisashi Okamura, Hiroshi Kawamoto, Makoto Kikuchi
  • Patent number: 5370984
    Abstract: In a silver halide photographic light-sensitive material having at least one silver halide emulsion layer on a support, at least one of the silver halide emulsion layers contains a light-sensitive silver halide emulsion, in which tabular grains having an aspect ratio of 2 or more occupy 50% or more of a total projected area of silver halide grains, and a polymer represented by Formula (1) below in an amount of 10.sup.-3 to 10 g per mole of the silver halide. In Formula (1), A represents a repeating unit derived from an ethylenic unsaturated monomer having at least one basic nitrogen atom, and B represents a repeating unit, other than A, derived from an ethylenic unsaturated monomer. x and y each represents a percentage by weight. x represents 0.1 to 100, and y represents 0 to 99.9.
    Type: Grant
    Filed: April 20, 1993
    Date of Patent: December 6, 1994
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Shunji Takada, Junichi Yamanouchi
  • Patent number: 5254456
    Abstract: A method of manufacturing a silver halide emulsion, wherein reduction sensitization is performed by using at least one of ascorbic acid and derivatives thereof in a process of manufacturing a silver halide emulsion. The invention is further directed to a of manufacturing a silver halide emulsion, wherein reduction sensitization is performed by using at least one of ascorbic acid and derivatives thereof during precipitation of silver halide grains.
    Type: Grant
    Filed: March 30, 1992
    Date of Patent: October 19, 1993
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Seiji Yamashita, Shunji Takada, Shigeru Shibayama
  • Patent number: 5244781
    Abstract: A silver halide photographic emulsion contains chemically sensitized silver halide grains each of which has at least one structure resulting from the difference in halogen compositions. The grains have been prepared in the presence of an oxidizing agent for silver. A silver halide photographic light-sensitive material has at least one layer of the silver halide emulsion on a support.
    Type: Grant
    Filed: December 17, 1990
    Date of Patent: September 14, 1993
    Assignee: Fuji Photo Film Co., Ltd.
    Inventor: Shunji Takada
  • Patent number: RE35003
    Abstract: A silver halide photographic light-sensitive material includes a support and at least one layer of silver halide emulsion formed on the support. The emulsion layer contains silver halide grains which have been subjected both to reduction sensitization while growing and to at least one chemical sensitization selected from the group consisting of gold sensitization, sulfur sensitization, and noble-metal sensitization. Each of the silver halide grains has at least 5 mol % of silver iodide on a surface thereof.
    Type: Grant
    Filed: August 12, 1992
    Date of Patent: July 25, 1995
    Assignee: Fuji Photo Film Co., Ltd.
    Inventor: Shunji Takada