Patents by Inventor Masayoshi Tsuboi

Masayoshi Tsuboi 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: 5512215
    Abstract: Disclosed are a shading film formed on a transparent substrate for forming a color filter, and a shading coating for forming the shading film. The shading film is made up of particles of a material with a layered lattice structure. The maximum diameter of the particles is 3 .mu.m or less, with the average diameter in the 0.05 .mu.m to 0.08 .mu.m range, and 40 to 95 wt % of the particles have a diameter of 0.1 .mu.m or less. The average aspect ratio of the particles is 10/1 or greater. The shading coating contains: a particulate material with a layered lattice structure and satisfying the characteristics relating to the particle size described above; and a dispersion medium for dispersing the particulate material. Water is used as the dispersion medium.
    Type: Grant
    Filed: June 9, 1994
    Date of Patent: April 30, 1996
    Assignee: Hitachi Powdered Metals Co., Ltd.
    Inventors: Shinichi Tachizono, Hironobu Chiyoda, Toshiya Yamamoto, Shigeo Takashima, Masayoshi Tsuboi, Hiroshi Yamane, Shigeo Kotera, Minoru Aoki
  • Patent number: 5055537
    Abstract: A metal-containing organic polymer produced by the step of polymerizing a compound represented by formula (I):(R--C.tbd.C).sub.l).sub.k k (L) (S).sub.m (I)whereinS represents a hydrogen atom, a hydroxy group, an amino group, a mercapto group, a polyoxyether group, a polyaminoether group, a polythioether group, a sulfino group or a salt thereof, a sulfo group or a salt thereof, a carboxyl group or a salt thereof or a polymerizable group;R represents a metallic atom, a hydrogen atom, or a group --COOM wherein M represents a hydrogen atom or a metallic atom;provided that when R represents a carboxyl group or a hydrogen atom, said compound represented by formula (I) is polymerized in the presence of a metallic salt;L represents a chemical bond or a group having a valency of (k+m); andl, k and m each represents an integer of 1 or more.
    Type: Grant
    Filed: March 12, 1990
    Date of Patent: October 8, 1991
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Ken Kawata, Kozo Sato, Masayoshi Tsuboi
  • Patent number: 5049477
    Abstract: A radiation responsive composition containing a compound represented by the following formula (I) and a photoreducing agent capable of forming a redox couple together with said compound for many uses, e.g., image formation, etching, plating, etc.: ##STR1## wherein N represents a nitrogen atom; X represents an oxygen atom (--O--), a sulfur atom (--S--), or a nitrogen-containing group of formula, ##STR2## R.sup.1, R.sup.2, R.sup.3 and R.sup.4 each represents a mere bond, a substituted or unsubstituted alkyl, aryl, heterocyclic, acyl, aralkyl, alkenyl, alkynyl or carbamoyl group, or a sulfonyl group into which a substituted or unsubstituted alkyl or aryl group has been introduced, provided that at least one of the substituents R.sup.1 to R.sup.3 be a substituted or unsubstituted aryl or heterocyclic group and that two or more of R.sup.1, R.sup.2 and R.sup.3, or of R.sup.1, R.sup.2, R.sup.3 and R.sup.
    Type: Grant
    Filed: April 14, 1989
    Date of Patent: September 17, 1991
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Koki Nakamura, Masayoshi Tsuboi, Keizo Koya
  • Patent number: 4927897
    Abstract: A metal-containing organic polymer produced by the step of polymerizing a compound represented by formula (I):(R--C.tbd.C.sub.lk S).sub.m (I)whereinS represents a hydrogen atom, a hydroxy group, an amino group, a mercapto group, a polyoxyether group, a polyaminoether group, a polythioether group, a sulfino group or a salt thereof, a sulfo group or a salt thereof, a carboxyl group or a salt thereof or a polymerizable group;R represents a metallic atom, a hydrogen atom, or a group --COOM wherein M represents a hydrogen atom or a metallic atom;provided that when R represents a carboxyl group or a hydrogen atom, said compound represented by formula (I) is polymerized in the presence of a metallic salt;L represents a chemical bond or a group having a valency of (k+m); andl, k and m each represents an integer of 1 or more.
    Type: Grant
    Filed: July 1, 1988
    Date of Patent: May 22, 1990
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Ken Kawata, Kozo Sato, Masayoshi Tsuboi
  • Patent number: 4914001
    Abstract: An optical recording medium comprising a support carrying thereon a dye and at least one of the quenchers represented by the general formula (I) or (II) ##STR1## wherein (Cat.sub.1) and (Cat.sub.2) respectively represent a cation necessary for making the complex neutral, M.sub.1 and M.sub.2 respectively represent nickel, copper, cobalt, palladium or platinum, and n represents 1 or 2, is offered.The optical recording medium has a smaller deterioration during reproduction, in other words is superior in reading durability, and is at the same time superior in stability in preservation, as compared with the optical recording medium of the prior art.
    Type: Grant
    Filed: October 19, 1987
    Date of Patent: April 3, 1990
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Yoshio Inagaki, Masayoshi Tsuboi, Yoshiaki Suzuki
  • Patent number: 4813222
    Abstract: A bobbin transfer system of a spinning frame (1), in which a series of trays (13) are carried on a pair of carrier rails (14, 15) driven to repeat a back-and-forth reciprocation. Hooking members (23) are arranged along the carrier rails (14, 15), which allow the trays (13) to pass thereover during the forward displacement of the carrier rail (14, 15) but inhibit the backward displacement of the trays (13) by the action of hooks (23a) formed on the hooking member (23) at a distance from each other corresponding to N times the spindle pitch wherein N satisfies the equation .DELTA.A.gtoreq..DELTA.D.times.N (wherein .DELTA.D stands for a manufacturing tolerance of a diameter of the tray 13 and .DELTA.A stands for an allowance for a grip distance of a bobbin catcher in an auto-doffer) and p stands for a spindle pitch. Accordingly, the trays (13) are transferred intermittently as the carrier rails (14, 15) reciprocate at a stroke larger than the spindle pitch.
    Type: Grant
    Filed: March 25, 1988
    Date of Patent: March 21, 1989
    Assignee: Kabushiki Kaisha Toyoda Jidoshokki Seisakusho
    Inventors: Tatemi Fukuda, Masayoshi Tsuboi, Meiji Anahara, Yoshiharu Yasui
  • Patent number: 4791023
    Abstract: An infrared absorbent comprising .alpha.-diimine metal complex is disclosed. With the use of the infrared absorbent, there is provided an infrared absorbing material capable of absorbing a near-infrared light having a wavelength of 700-1500 nm and a far-infrared light. The infrared absorbent has a good fastness to heat and light. The infrared absorbing material is suitable for an optical filter and optical information recording medium.
    Type: Grant
    Filed: July 3, 1985
    Date of Patent: December 13, 1988
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Yoshiaki Suzuki, Gouichi Hayashi, Masayoshi Tsuboi
  • Patent number: 4388387
    Abstract: A process for forming color images which comprises providing a light absorbing dye layer or a dye containing layer on a base, at least the surface of which is composed of a transparent dye accepting polymer through which dyes are capable of thermally diffusing, imagewise exposing the dye layer or the dye containing layer to light having a high energy density such that a dye image is formed in the dye accepting polymer in the exposed area by thermal diffusion of the dye, and thereafter removing the dye or the dye containing layer in the unexposed areas.
    Type: Grant
    Filed: March 26, 1980
    Date of Patent: June 14, 1983
    Assignee: Fuji Photo Film Co., Ltd.
    Inventor: Masayoshi Tsuboi
  • Patent number: 4131463
    Abstract: An image-recording material comprising a support, at least the surface of which is electrically conductive, having on the electric conductive surface a layer of an electron-sensitive composition substantially containing (a) a trivalent cobalt complex compound, (b) a compound having a conjugated .pi. bond system capable of forming at least a bidentate ligand with a divalent or trivalent cobalt ion, and (c) a film-forming organic high polymer, the electron-sensitive composition further containing (d) a compound capable of absorbing electromagnetic waves of a wavelength not longer than about 350 nm as an ultraviolet light absorbing agent, an image-recording process using the image-recording element and an apparatus for forming visible images using the image-recording material.
    Type: Grant
    Filed: September 19, 1977
    Date of Patent: December 26, 1978
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Masayoshi Tsuboi, Yoshiaki Suzuki, Masatoshi Tabei
  • Patent number: 4130426
    Abstract: A heat developable light-sensitive material comprising at least one layer containing a diazonium salt and a metal-.beta.-diketonate. If desired, these two essential components can be incorporated into different layers of the light-sensitive materials. The heat developable light-sensitive materials forms stable positive images upon exposure and heating.
    Type: Grant
    Filed: April 22, 1975
    Date of Patent: December 19, 1978
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Keiji Takeda, Masayoshi Tsuboi
  • Patent number: 4129445
    Abstract: A process for forming metal images of, e.g., copper at high sensitivity by imagewise depositing silver or silver ion on nuclei for physical development distributed on or in a support of an image forming photographic element or in a layer formed on the support of the photographic element to deactivate the physical developing activity of the active nuclei and then bringing the image forming element having the layer of the nuclei for physical developing which were not deactivated into contact with a physical developer containing a reducible heavy metal salt and a reducing agent to imagewise deposit the heavy metal, such as copper, on the remaining nuclei for physical development. A preferred embodiment comprises performing the above image forming process while depositing imagewise the silver or silver ion on the nuclei for physical development from the unexposed portions of an image-exposed silver halide photographic emulsion layer formed on the image forming photographic element by diffusion transfer.
    Type: Grant
    Filed: February 28, 1978
    Date of Patent: December 12, 1978
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Masato Fujiwara, Keiji Takeda, Masayoshi Tsuboi
  • Patent number: 4076530
    Abstract: A method for producing an image comprising image-wise exposing a light-sensitive layer containing a sensitizing agent and an image forming compound which can be transferred at non-exposed areas to an image receiving layer upon heating at about 80.degree. to about 200.degree. C, and which can be changed to a non-transferable compound at exposed areas, contacting the light-sensitive layer with the image receiving layer containing a compound which forms a colored image upon reaction with the image forming compound, and heating the light-sensitive layer to transfer the image forming compound to the image receiving layer at non-exposed areas, wherein the image receiving layer comprises an organic tellurium compound and a binder formed on a support.
    Type: Grant
    Filed: May 5, 1976
    Date of Patent: February 28, 1978
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Keiji Takeda, Kenji Matsumoto, Hiroshi Tamura, Masayoshi Nagata, Masayoshi Tsuboi
  • Patent number: 4076537
    Abstract: A light-sensitive material comprising a layer containing:(a) at least one organic compound containing tellurium and/or selenium; and(b) at least one sensitizing compound selected from the oxides, basic halides, halides, sulfates, nitrates, perchlorates, or organic acid salts of In (III), Sb (III), Ti (IV), Zn (II), Bi (III), Ge (IV), and Sn (IV).
    Type: Grant
    Filed: January 2, 1976
    Date of Patent: February 28, 1978
    Assignee: Fuji Photo Film Co., Ltd.
    Inventor: Masayoshi Tsuboi
  • Patent number: 4045222
    Abstract: In an etch-bleaching process wherein a hydrophilic layer in/on which a silver image exists is first treated with an etch-bleaching solution the improvement where the hydrophilic layer is subsequently treated with an aqueous solution containing at least one of an oxyacid of chlorine and a salt thereof.
    Type: Grant
    Filed: January 26, 1973
    Date of Patent: August 30, 1977
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Fumiaki Shinozaki, Tomoaki Ikeda, Masayoshi Tsuboi
  • Patent number: 4032348
    Abstract: A method for producing a phase hologram by bleaching a silver image of an amplitude hologram formed on a light-sensitive silver halide photographic material, wherein the bleaching is conducted using a solution containing an N-halogeno compound to inhibit the binder of the layer having the silver image therein from swelling.
    Type: Grant
    Filed: October 30, 1975
    Date of Patent: June 28, 1977
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Keishiro Kido, Masayoshi Tsuboi, Noboru Arai
  • Patent number: 3976817
    Abstract: A method of preparing a diffusion transfer image-receiving material for use in the silver halide diffusion transfer process which comprises hydrolyzing the surface portion of an alkali non-diffusible polymer sheet and, at the same time as or after the hydrolysis, absorbing diffusion transfer nuclei in the surface portion of the sheet from water, a ketone, or an alcohol containing the diffusion transfer nuclei.
    Type: Grant
    Filed: August 22, 1972
    Date of Patent: August 24, 1976
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Yoshito Mukaida, Masayoshi Tsuboi
  • Patent number: 3969541
    Abstract: A diffusion transfer image-receptive sheet comprising (a) a sheet of an alkali impermeable polymer having a surface portion converted into an alkali permeable state and (b) diffusion transfer nuclei incorporated in the alkali permeable surface portion.
    Type: Grant
    Filed: March 27, 1972
    Date of Patent: July 13, 1976
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Yoshito Mukaida, Eiichi Mizuki, Tomoaki Ikeda, Masayoshi Tsuboi, Akio Ishizuka, Fumiaki Shinozaki