Patents by Inventor Masaru Yoshikawa

Masaru Yoshikawa 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: 20090174844
    Abstract: A composition comprising at least one liquid-crystal compound and a polymer having at least one group of the following formula: wherein Mp represents a trivalent linking group; L represents a single bond, or a divalent linking group; X represents a substituted or unsubstituted cyclic linking group; Y represents a single bond, or a divalent linking group; Z represents a substituted or unsubstituted cyclic group; n is 1 to 10.
    Type: Application
    Filed: January 23, 2007
    Publication date: July 9, 2009
    Applicant: FUJIFILM CORPORATION
    Inventors: Yi Li, Masaru Yoshikawa, Makoto Takahashi, Takafumi Hosokawa
  • Publication number: 20090091690
    Abstract: The present invention aims to provide an optical compensation film that allows superior phase difference between a first optically anisotropic layer and a second optically anisotropic layer and excellent wavelength dispersibility in terms of front and inclined retardation of liquid crystal layers in liquid crystal cells, a polarizing plate containing the optical compensation film, and a liquid-crystal display device that can display superior images with less color change due to the polarizing plate. In order to attain the object, an optical compensation film etc. is provided that comprises at least a first optically anisotropic layer and a second optically anisotropic layer, wherein the first optically anisotropic layer satisfies at least one of the following Equations (i) to (iii): 1?Re1450(0°)/Re1650(0°)?1.25:??Equation (i) 1?Re1450(40°)/Re1650(40°)?1.25:??Equation (ii) 1?Re1450(?40°)/Re1650(?40°)?1.
    Type: Application
    Filed: November 30, 2006
    Publication date: April 9, 2009
    Applicant: FUJIFILM Corporation
    Inventors: Ryota Matsubara, Yuta Takahashi, Akira Ikeda, Masaru Yoshikawa, Takafumi Hosokawa, Michio Nagai, Makoto Takahashi
  • Publication number: 20090009693
    Abstract: An optical compensation film capable of contributing to improvement in a viewing angle characteristic of a liquid crystal display device, especially an IPS mode liquid crystal display device is proposed. A composition comprises at least one onium salt, at least one rod-like liquid crystalline compound, and at least one additive capable of promoting a vertical alignment of molecules of the rod-like liquid crystalline compound at an air interface; and an optical compensation film comprising an optically anisotropic layer formed of the composition are disclosed.
    Type: Application
    Filed: September 8, 2005
    Publication date: January 8, 2009
    Applicant: Fujifilm Corporation
    Inventors: Masaru Yoshikawa, Hiroshi Takeuchi, Mitsuyoshi Ichihashi
  • Publication number: 20080203354
    Abstract: The invention provides a polishing liquid for polishing a barrier layer of a semiconductor integrated circuit, the polishing liquid comprising: a diquaternary ammonium cation; a corrosion inhibiting agent; and a colloidal silica, wherein the pH of the polishing liquid is in the range of 2.5 to 5.0. According to the invention, a polishing liquid capable of achieving a superior barrier layer polishing rate, as well as suppressing the occurrence of scratching due to the agglomeration of solid abrasive grains can be provided.
    Type: Application
    Filed: February 25, 2008
    Publication date: August 28, 2008
    Applicant: FUJIFILM Corporation
    Inventors: Tetsuya KAMIMURA, Toshiyuki Saie, Masaru Yoshikawa
  • Publication number: 20080112655
    Abstract: A hemispherical shoe 4 is equipped with a sliding surface 4A which slides with a swash plate 3, and a hemispherical convex 4B. Hardening is performed by radiating a laser so that a lot of minute circles 6 may be drawn on the sliding surface 4A. Then, lapping is given to the sliding surface 4A and, finally buffing is given. Thereby, the lot of annular swelling portions 7? and concavities 8? are formed in positions of the circles 6, and further, lubricating oil passages 10? which include net-like concavities are formed in the sliding surface 4A. A hardening part is formed of the lot of above-mentioned annular swelling portions 7?. The above-mentioned annular swelling portions 7? are formed so that a ratio of an area of a total of all the above-described annular swelling portions 7? occupies in an area of the sliding surface 4A which is a hardening object domain may become 0.3 to 0.8. It is possible to provide the shoe 4 which is good in seize resistance in comparison with the past.
    Type: Application
    Filed: December 26, 2005
    Publication date: May 15, 2008
    Inventors: Hiroshi Kanemitsu, Masaru Yoshikawa, Masaharu Hatta
  • Publication number: 20070266808
    Abstract: A sliding device 1 is constituted of a swash plate 3 including a first sliding surface 3A and a semispherical shoe 4 sliding with the swash plate 3. The swash plate 3 is constituted of a base material 3B of high strength brass containing Mn and Si, and very small granular Mn—Si compounds 6 are exposed on an inside of the base material 3B and on the first sliding surface 3A (surface of the base material 3B). The above described swash plate 3 increases in exposure amount of the Mn—Si compounds 6 exposed on the first sliding surface 3A being the surface by applying etching to the base material 3B after cutting the base material 3B. The sliding device 1 which is favorable in seizure resistance at low manufacturing cost as compared with the conventional sliding devices can be provided.
    Type: Application
    Filed: September 29, 2005
    Publication date: November 22, 2007
    Inventors: Hiroshi Kanemitsu, Masaru Yoshikawa, Masaharu Hatta
  • Patent number: 6911595
    Abstract: A charge transfer material comprising a basic compound having negative charge and represented by the following general formula (I): (A1-L)n1-A2·M??(I), wherein A1 represents a group having negative charge; A2 represents a basic group; M represents a cation for neutralizing the negative charge of (A1-L)n1-A2; L represents a divalent linking group or a single bond; and n1 represents an integer of 1 to 3. A photoelectric conversion device and a photo-electrochemical cell comprising the charge transfer material. A new nonvolatile pyridine compound, which is a low-viscosity liquid at room temperature, is preferably used for A2.
    Type: Grant
    Filed: June 14, 2002
    Date of Patent: June 28, 2005
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Masaru Yoshikawa, Chang-yi Qian
  • Patent number: 6638697
    Abstract: A method of processing a silver halide color photographic material comprises the steps of color-developing an image-wise exposed silver halide color photographic material and subjecting the developed material to desilvering in a processing bath having a fixing function and containing a thiosulfate compound and the following compound or analogue thereof in a molar ratio of 1/0.05 to 1/0.30. In this process, the fixing speed is extremely high even when the replenishing rate is low and the processed photosensitive material has an excellent resistance to fading by light.
    Type: Grant
    Filed: November 9, 1995
    Date of Patent: October 28, 2003
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Takatoshi Ishikawa, Tetsuro Kojima, Masaru Yoshikawa
  • Publication number: 20030127129
    Abstract: A charge transfer material comprising a basic compound having negative charge and represented by the following general formula (I):
    Type: Application
    Filed: June 14, 2002
    Publication date: July 10, 2003
    Inventors: Masaru Yoshikawa, Chang-Yi Qian
  • Patent number: 6586670
    Abstract: A method for producing a photoelectric conversion device comprising a conductive support and a photosensitive layer containing a semiconductor fine particle on which a dye is adsorbed, wherein the semiconductor fine particle is treated with a compound represented by the following general formula (I): wherein X represents an oxygen atom, a sulfur atom, a selenium atom or NY, in which Y represents a hydrogen atom, an aliphatic hydrocarbon group, a hydroxyl group or an alkoxy group; R1, R2, R3 and R4 independently represent a hydrogen atom, an aliphatic hydrocarbon group, an aryl group, a heterocyclic group, —N(R5)(R6), —C(═O)R7, —C(═S)R8, —SO2R9 or —OR10; R5 and R6 independently have the same meaning as the R1, R2, R3 and R4; R7, R8 and R9 independently represent a hydrogen atom, an aliphatic hydrocarbon group, an aryl group, a heterocyclic group, —N(R5)(R6), —OR10 or —SR11; and R10 and R11 independently represent a hydrogen atom or an
    Type: Grant
    Filed: August 15, 2001
    Date of Patent: July 1, 2003
    Assignee: Fuji Photo Film Co., Ltd.
    Inventor: Masaru Yoshikawa
  • Publication number: 20020192604
    Abstract: A method of processing a silver halide color photographic material comprises the steps of color-developing an image-wise exposed silver halide color photographic material and subjecting the developed material to desilvering in a processing bath having a fixing function and containing a thiosulfate compound and the following compound or analogue thereof in a molar ratio of 1/0.05 to 1/0.30. In this process, the fixing speed is extremely high even when the replenishing rate is low and the processed photosensitive material has an excellent resistance to fading by light.
    Type: Application
    Filed: November 9, 1995
    Publication date: December 19, 2002
    Inventors: TAKATOSHI ISHIKAWA, TETSURO KOJIMA, MASARU YOSHIKAWA
  • Patent number: 6489088
    Abstract: A color diffusion-transfer photographic light-sensitive material provided with at least two light-sensitive silver halide emulsion layers, each of which is combined with a non-diffusive dye image forming compound forming or releasing a diffusive dye or its precursor in relation to silver development, or with a dye image forming compound whose diffusibility changes in relation to silver development, on a support, the light-sensitive material comprises a specific hydrazine compound and a specific compound improved in storability.
    Type: Grant
    Filed: March 14, 2001
    Date of Patent: December 3, 2002
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Nobutaka Fukagawa, Shinichi Ichikawa, Masaru Yoshikawa
  • Publication number: 20020040728
    Abstract: A method for producing a photoelectric conversion device comprising a conductive support and a photosensitive layer containing a semiconductor fine particle on which a dye is adsorbed, wherein the semiconductor fine particle is treated with a compound represented by the following general formula (I): 1
    Type: Application
    Filed: August 15, 2001
    Publication date: April 11, 2002
    Inventor: Masaru Yoshikawa
  • Publication number: 20020042015
    Abstract: A color diffusion-transfer photographic light-sensitive material provided with at least two light-sensitive silver halide emulsion layers, each of which is combined with a non-diffusive dye image forming compound forming or releasing a diffusive dye or its precursor in relation to silver development, or with a dye image forming compound whose diffusibility changes in relation to silver development, on a support, the light-sensitive material comprises a specific hydrazine compound and a specific compound improved in storability.
    Type: Application
    Filed: March 14, 2001
    Publication date: April 11, 2002
    Inventors: Nobutaka Fukagawa, Shinichi Ichikawa, Masaru Yoshikawa
  • Patent number: 6346372
    Abstract: A silver halide photographic light-sensitive material is disclosed, comprising a support having thereon at least one silver halide emulsion layer, which contains at least one compound represented by formula (1) or (A-1).
    Type: Grant
    Filed: July 6, 2000
    Date of Patent: February 12, 2002
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Masaru Yoshikawa, Hirotomo Sasaki, Atsushi Matsunaga
  • Patent number: 6083668
    Abstract: Disclosed is a processing element which includes a silver halide solvent represented by a general formula (1) and which has a function of efficiently fixing undeveloped silver halide remaining in a photosensitive element after developing without any harmful influence, and an image-forming method using the processing element, the general formula (1) being ##STR1## wherein R.sub.1 and R.sub.2 each represent an aliphatic hydrocarbon group.
    Type: Grant
    Filed: March 31, 1999
    Date of Patent: July 4, 2000
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Kazuhiko Matsumoto, Masaru Yoshikawa
  • Patent number: 5922519
    Abstract: A method for processing a silver halide color photographic photosensitive material comprises the steps of desilverizing a photosensitive silver halide material having at least one red-sensitive layer, green-sensitive layer and blue-sensitive layer respectively on one side of a transparent support and a magnetic recording layer containing magnetic grains on the other side after the color development and then washing it with water and/or stabilizing it, wherein a bath having fixing function used in the desilverization step contains the following compound or analogue thereof. ##STR1## This method does not impair the S/N ratio of the magnetically recorded information and excellent desilverization effect can be obtained.
    Type: Grant
    Filed: May 24, 1996
    Date of Patent: July 13, 1999
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Takatoshi Ishikawa, Masaru Yoshikawa, Tetsuro Kojima
  • Patent number: 5814435
    Abstract: There is disclosed a photographic composition having fixing capacity and a method for processing a silver halide photographic material using the same. The photographic composition having fixing capacity comprises at least one compound represented by the following formula (I):RSO.sub.2 M formula (I)wherein R represents a lower alkyl group having 1 to 3 carbon atoms, and M represents a hydrogen atom or a cationic group.
    Type: Grant
    Filed: August 5, 1996
    Date of Patent: September 29, 1998
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Tetsuro Kojima, Masaru Yoshikawa, Yoshihiro Fujita
  • Patent number: 5543272
    Abstract: There is disclosed a photographic composition having fixing capacity and a method for processing a silver halide photographic material using the same. The photographic composition having fixing capacity comprises a photographic composition having fixing capacity, which comprises at least one compound represented by the following formula (I) and at least one compound represented by the following formula (II):RSO.sub.2 SM formula (I)wherein R represents an aliphatic group, an aromatic group, or a heterocyclic group, and M represents a hydrogen atom or a cationic group,R.sup.1 SO.sub.2 M.sup.1 formula (II)wherein R.sup.1 represents an aliphatic group, an aromatic group, or a heterocyclic group, and M.sup.1 represents a hydrogen atom or a cationic group.
    Type: Grant
    Filed: February 10, 1994
    Date of Patent: August 6, 1996
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Tetsuro Kojima, Masaru Yoshikawa, Yoshihiro Fujita