Patents by Inventor Katsumi Makino

Katsumi Makino 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: 5368999
    Abstract: A silver halide emulsion contains light-sensitive silver halide grains in a binder. The silver halide emulsion is has been subjected to reduction-sensitization during grain formation and then added with at least one compound represented by the following formula (I), (II), or (III):R--SO.sub.2 S--M (I)R--SO.sub.2 S--R.sub.1 (II)R--SO.sub.2 S--L.sub.m --SSO.sub.2 --R.sup.2 (III)wherein R, R.sup.1, and R.sup.2 may be the same or different and represent an aliphatic group, an aromatic group, or a heterocyclic group, M represents a cation, L represents a divalent bonding group, and m represents 0 or 1. Compounds represented by formulas (I) to (III) may be polymers containing divalent groups derived from structures represented by formulas (I) to (III) as repeating unit. R, R.sup.1, R.sup.2, and L may be bonded to form a ring if possible.
    Type: Grant
    Filed: December 26, 1990
    Date of Patent: November 29, 1994
    Assignee: Fuji Photo Film Co., Ltd.
    Inventor: Katsumi Makino
  • Patent number: 5290674
    Abstract: A silver halide photographic material comprising a support having provided thereon at least one silver halide emulsion layer, wherein the emulsion layer contains silver halide tabular grains having a diameter of not less than 0.15 .mu.m in an amount of not less than 70% of the total projected area of the total silver halide grains, wherein at least 50% of the total number of all tabular grains have a ratio of grain thickness (b) to the longest distance between two or more parallel twinning planes (a) of not less than 5, and wherein the emulsion layer or other hydrophilic colloidal layer contains a compound represented by formula (I): ##STR1## wherein Z represents a residual group of a heterocyclic ring to which at least one group selected from --SO.sub.3 M, --COOR.sub.1, --OH, and --NHR.sub.2 is bonded either directly or indirectly; M represents a hydrogen atom, an alkali metal atom, or --NH.sub.4 ; R.sub.1 represents a hydrogen atom, an alkali metal atom, or an alkyl group having from 1 to 6 carbon atoms; R.
    Type: Grant
    Filed: December 16, 1992
    Date of Patent: March 1, 1994
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Katsumi Hirano, Katsumi Makino
  • Patent number: 5282307
    Abstract: A method for manufacturing a metallic ornamental plate is provided comprising the steps of press-forming a light metal plate to provide a first planar region having a first surface, and a second planar region having a second surface elevated from the first surface; and machine-finishing the elevated second surface of the second planar region to define a distinct ornamental pattern against the first surface wherein the machine-finishing step removes material from the elevated second surface.
    Type: Grant
    Filed: January 8, 1993
    Date of Patent: February 1, 1994
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventors: Osamu Toyoda, Katsumi Makino
  • Patent number: 5134037
    Abstract: A process for manufacturing a metallic powder molded article comprising the steps of preparing a mixture of inflammable metallic powders and synthetic resin and molding under pressure and heat the mixture to form a molded body. Pressure and heat are applied such as by buffing onto a surface of the molded body to deform and bond together the metallic powders on the molded body surface to form a substantially continuous metallic surface. A plated layer may be applied on the continuous metallic surface. The process manufactures a metallic powder molded article comprising a molded body of a mixture of inflammable metallic powders and synthetic resin having a substantially continuous metallic surface defined by the metallic powders compacted and bonded together.
    Type: Grant
    Filed: January 25, 1991
    Date of Patent: July 28, 1992
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventor: Katsumi Makino
  • Patent number: 4853322
    Abstract: A light-sensitive silver halide emulsion is disclosed, which comprises light-sensitive silver halide grains in a binder, wherein tabular grains having a diameter of at least 0.15 .mu.m account for at least 70% of the total projected area of said silver halide grains, said tubular grains have a mean aspect ratio of not more than 8.0, and at least 50% (by number) of all of said tabular grains are tabular grains in which the ratio (b/a) of the thickness (b) of said tabular grain to the longest spacing (a) between two or more parallel twinning planes of said tabular grain is at least 5. A color photographic material using the light-sensitive silver halide emulsion for at least one of the silver halide emulsion layers other than the outermost silver halide emulsion layer is also disclosed.
    Type: Grant
    Filed: December 28, 1987
    Date of Patent: August 1, 1989
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Katsumi Makino, Yuichi Ohashi, Hiroshi Takehara, Yoichi Suga, Takekimi Shiozawa
  • Patent number: 4835095
    Abstract: A photosensitive silver halide emulsion whose grain diameter/grain thickness ratio is 5 or more. The grains of the emulsion each comprises a core that consists substantially of silver bromoiodide containing from 4 to 20 mol % of silver iodide, and a shell that covers the core and consists substantially of silver bromide or silver bromoiodide containing 3 mol % or less of silver iodide, and the relative standard deviation of the silver iodide content among the grains of the emulsion is 20% or less.
    Type: Grant
    Filed: February 3, 1987
    Date of Patent: May 30, 1989
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Yuichi Ohashi, Yoshihiko Shibahara, Katsumi Makino, Hiroshi Takehara
  • Patent number: 4806459
    Abstract: A color photographic material comprising a support having provided thereon a blue-sensitive silver halide emulsion layer containing at least one coupler capable of reacting with an oxidation product of an aromatic primary amine developing agent to form a yellow dye, at least one coupler capable of reacting with said oxidation product to form a cyan dye and not to produce a diffusible development inhibitor or a precursor thereof, and at least one compound capable of reacting with said oxidation product to produce a diffusible development inhibitor or a precursor thereof.
    Type: Grant
    Filed: May 6, 1987
    Date of Patent: February 21, 1989
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Katsumi Makino, Noboru Sasaki, Koji Takahashi
  • Patent number: 4709308
    Abstract: A lighting device for an elevator car including light sources for emitting light toward the interior of the elevator car and a spectral resolution filter spaced apart and facing the light sources for spectrally resolving the light emitted from the light sources into spectral light with varying colors. The light sources may take the form of a combination of a mirror ball with reflecting surfaces on its outer periphery and a light projector or the form of a plurality of point light sources mounted in a dispersed pattern. The spectral resolution filter may take the form of a flat half mirror surface of a semisphere.
    Type: Grant
    Filed: June 30, 1986
    Date of Patent: November 24, 1987
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventor: Katsumi Makino
  • Patent number: 4704662
    Abstract: A lighting device for an elevator car having walls including a plurality of light sources for emitting light, and a reflection panel adapted to reflect light from the light sources. The reflection panel comprises a metal mirror decorative panel in the form of a spectral resolution reflecting panel having a reflecting diffraction grating which is composed of a plurality of fine mirror reflection surfaces and a plurality of fine frosted surfaces. The light emitted from the light sources is spectrally resolved into spectral light of excellent coloring by the light diffracting action of the reflecting diffraction grating on the spectral resolution reflecting panel so that the illumination of the elevator car interior is greatly improved in terms of luminance and hue thereof.
    Type: Grant
    Filed: July 8, 1986
    Date of Patent: November 3, 1987
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventor: Katsumi Makino
  • Patent number: 4666743
    Abstract: A method for manufacturing a decorative sheet from a metallic sheet comprises the steps of flame-spraying a coating material onto the surface of a metallic sheet to form a flame-sprayed layer thereon, and roughening the surface of the flame-sprayed layer. The surface of the metallic sheet may be etched in the shape of some pattern to form the flame-sprayed layer, and may be covered with at least one mask having a pattern opening which extends through the mask and has a pattern so as to form the pattern on the surface of the metallic sheet by flame-spraying of the coating material through the pattern opening of the mask.
    Type: Grant
    Filed: November 13, 1985
    Date of Patent: May 19, 1987
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventors: Kazutoshi Ohta, Kenichi Takemoto, Katsumi Makino
  • Patent number: 4575481
    Abstract: A photographic light-sensitive material for a color diffusion transfer process is described, comprising a support having provided thereon (1) at least two silver halide emulsion layers which are in combination with dye-releasing redox compounds, and (2) an intermediate layer between said silver halide emulsion layers; the intermediate layer comprises a hydrophilic colloid having dispersed therein two or more different kinds of particles, with one or more kinds of said particles containing a scavenger for an oxidized product of a developing agent. The material has an improved processing temperature latitude.
    Type: Grant
    Filed: March 1, 1985
    Date of Patent: March 11, 1986
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Osamu Takahashi, Katsumi Makino