Patents by Inventor Masazumi Ishikawa

Masazumi Ishikawa 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: 5447827
    Abstract: A photographic processing method for developing a film having been photographed, printing the developed film on a photographic paper and developing the photographic paper, the film being accommodated in a cartridge and set in a predetermined position of a photographic processing apparatus. The method includes the steps of: (a) providing the film or the cartridge with an ID number for identifying the film; (b) making an index print in which respective images of a plurality of frames of the film are arranged in numeral order of the film; and (c) providing the index print with the ID number read from the film or the cartridge. With this method, one is able to find out in which film and in which frame of the film an image desired to be copy-printed is present.
    Type: Grant
    Filed: February 18, 1994
    Date of Patent: September 5, 1995
    Assignee: Noritsu Koki Co., Ltd.
    Inventors: Masazumi Ishikawa, Toru Tanibata
  • Patent number: 5448335
    Abstract: A photographic processing apparatus adapted to put photographic prints and their corresponding index print together in ejecting these two types of prints made in different processes. The apparatus includes: an printing-development mechanism for photographic print; an index print making mechanism which reads the images of the developed film, arranges the images sequentially to display the same on at least one index print and ejects the index print through an index print outlet; and a print sorting device which sorts out the photographic prints and the index print corresponding thereto together. Time and labor for collation between the index print and the corresponding photographic prints can be dispensed with.
    Type: Grant
    Filed: February 25, 1994
    Date of Patent: September 5, 1995
    Assignee: Noritsu Koki Co., Ltd.
    Inventors: Masazumi Ishikawa, Toru Tanibata
  • Patent number: 5436694
    Abstract: A film sheet having a plurality of small pockets wherein a developed film is inserted to be stored, and an index print to which whole numbers of frames in the developed film are printed in numeral order of the developed film inserted in the film sheet. Users can easily search specific film numbers.
    Type: Grant
    Filed: February 4, 1994
    Date of Patent: July 25, 1995
    Assignee: Noritsu Koki Co., Ltd.
    Inventors: Masazumi Ishikawa, Toru Tanibata
  • Patent number: 5434643
    Abstract: An image printer includes a transport device for transporting standard and auxiliary photosensitive materials to a developing unit, an exposure system for exposing the photosensitive materials. The transport device includes a standard transport unit and an auxiliary transport unit. The standard transport means transports to the developing unit the standard photosensitive material having sensitivity to a wavelength range of the three primary color components of light. The auxiliary transport unit transports to the developing unit the auxiliary photosensitive material having sensitivity to a light wavelength range different from that of the standard photosensitive material. The exposure system includes a standard exposure unit and an auxiliary exposure unit.
    Type: Grant
    Filed: June 9, 1994
    Date of Patent: July 18, 1995
    Assignee: Noritsu Koki Co., Ltd.
    Inventors: Masazumi Ishikawa, Toru Tanibata
  • Patent number: 5367160
    Abstract: A method for forming a polymer particle is provided which involved irradiating a polymer solution with a laser beam. The polymer particle is formed at the focal area of the beam. The particle is reversible and disappears upon discontinuing the irradiation. Irreversible particles can be formed by including a reactive monomer in the solution. The particles are trapped by the beam and may be moved for processing and modification by moving the laser beam.
    Type: Grant
    Filed: March 1, 1993
    Date of Patent: November 22, 1994
    Assignee: Research Development Corporation of Japan
    Inventors: Masazumi Ishikawa, Hiroaki Misawa, Noboru Kitamura
  • Patent number: 5099356
    Abstract: The invention relates to an electrochromic (EC) device having oppositely arranged two EC electrode layers. The first EC electrode layer uses Prussian blue, osmium purple or ruthenium purple and accordingly takes on a characteristic color by electrochemical oxidation, and the second EC electrode layer uses a transition metal oxide which takes on a characteristic color by electrochemical reduction, such as WO.sub.3. The space between the two EC electrode layers is filled with an electrolyte solution. When an EC device of this type is left in the bleached state for some period of time and then driven for coloration, the density of coloration is insufficient because of a decrease in the quantity of electricity in the oxidizing and coloring reaction of the first EC electrode layer. The invention solves this problem by using, as the electrolyte solution, a solution of a lithium salt and a sodium salt in an organic solvent prepared such that Na.sup.+ ion amounts to 3-30 mol % of the total of Li.sup.+ ion and Na.sup.
    Type: Grant
    Filed: March 28, 1990
    Date of Patent: March 24, 1992
    Assignees: Central Glass Company, Limited, Nissan Motor Co., Ltd.
    Inventors: Yasuhiko Ohsawa, Katsunori Aoki, Takeshi Miyamoto, Masazumi Ishikawa, Hiroshi Inaba, Kiyoshi Nakase
  • Patent number: 4983957
    Abstract: In an electrochromic (EC) display device having oppositely arranged two EC electrode layers, two kinds of EC materials each of which takes on a characteristic color by electrochemical oxidation, or by electrochemical reduction, are used in the two EC electrode layers, respectively, on condition that the characteristic color of one EC material differs from the color of the other EC material. For example, Prussian blue which colors in blue by oxidation and polytriphenylamine which colors in bronze by oxidation are used in combination. An alternative example is using a combination of WO.sub.3 which colors in blue by reduction and V.sub.2 O.sub.5 which colors in green by reduction. Since electrochemical oxidation of one EC electrode layer is usually accompanied by reduction of the opposite EC electrode layer, this EC device can be operated so as to selectively and alternately exhibit at least two different colors aside from colorless transparency.
    Type: Grant
    Filed: May 20, 1988
    Date of Patent: January 8, 1991
    Assignees: Nissan Motor Co., Ltd., Central Glass Co., Ltd.
    Inventors: Masazumi Ishikawa, Yasuhiko Osawa, Hiroshi Inaba, Kiyoshi Nakase, Yukitoshi Yanagida
  • Patent number: 4832467
    Abstract: The invention relates to a nonglaring mirror which is an electrochromic (EC) device in principle. The mirror comprises a transparent front substrate provided with a transparent first electrode layer, a back substrate provided with a second electrode layer opposite to the first electrode layer, first and second EC layers formed on the first and second electrode layers, respectively, an electrolyte liquid which fills up the space between the two substrates and reflecting means for providing a reflective surface to the second substrate. The material of the first EC layer is an organic polymer which is colorless or very pale in color in its electrochemically reduced state and undergoes electrochemical oxidation in two stages to assume a characteristic color in the first-stage oxidized state and another color in the second-stage oxidized state, and intermediate colors in intermediately oxidized states.
    Type: Grant
    Filed: August 10, 1987
    Date of Patent: May 23, 1989
    Assignee: Nissan Motor Co., Ltd.
    Inventors: Harutoshi Miyagi, Masazumi Ishikawa
  • Patent number: 4796041
    Abstract: A rack of a film feed unit for an automatic film developing machine is formed by two rack plates, one of which is formed in its side plates with cutouts. Film feed members can be easily mounted on the rack plate by inserting its ends into the cutouts from the front of the side plates. Also, each rack plate may be divided into a plurality of blocks, each having one end formed with grooves and the other end with projections to be engaged in the grooves to combine the blocks together. Thus, by changing the number of blocks to be coupled together, the length of the rack can be adjusted to the depth of a treating tank in which it is to be hung. Also provided in the rack are members for preventing films from meandering while being fed to the rack.
    Type: Grant
    Filed: May 28, 1987
    Date of Patent: January 3, 1989
    Assignee: Noritsu Kenkyu Center Co., Ltd.
    Inventors: Masazumi Ishikawa, Mitsuji Kawashima
  • Patent number: 4786715
    Abstract: The disclosure relates to a novel polymer which is made up of repeating units of N,N,N'N'-tetrapheny-p-phenylenediamine. This polymer is thermoplastic and is soluble in industrially usable organic solvents. The polymer acquires high conductivity by doping with an electron acceptor. The polymer becomes insoluble in organic solvents when it is once doped with an electron acceptor and then dedoped, so that the polymer can be used as an active electrode material in electrolytic devices using an organic solvent. The polymer has electrochromic properties and undergoes two-stage oxidation and two-stage reduction to assume three differently stable states. The polymer exhibits pale yellow color in its reduced state, green color in the first-stage oxidized state and dark blue color in the second-stage oxidized state.
    Type: Grant
    Filed: May 27, 1987
    Date of Patent: November 22, 1988
    Assignee: Nissan Motor Co., Ltd.
    Inventors: Masazumi Ishikawa, Yasuhiko Ohsawa, Mikio Kawai, Takao Kase, Teruko Yoshimoto
  • Patent number: 4741603
    Abstract: Disclosed is a nonglaring mirror which is an electrochromic device in principle. The mirror comprises a transparent front substrate laid with a transparent first electrode film, a back substrate laid with a second electrode film which is opposite and spaced from the first electrode film, first and second electrochromic layers formed on the first and second electrode films, respectively, and an electrolyte liquid which fills up the space between the two substrates. A reflecting surface is provided by using a transparent sheet as the back substrate and coating the rear surface of the back substrate with a reflecting metal film, or by using a reflecting metal film as the second electrode film. One of the first and second electrochromic layers is formed of a polymer of a conjugated compound, such as substituted or unsubstituted triphenylamine, and the other is formed of a transition metal oxide such as WO.sub.3. In the initial state both the first and second electrochromic layers are colorless and transparent.
    Type: Grant
    Filed: May 5, 1986
    Date of Patent: May 3, 1988
    Assignee: Nissan Motor Co., Ltd.
    Inventors: Harutoshi Miyagi, Masazumi Ishikawa, Yasuyuki Murofushi
  • Patent number: 4565860
    Abstract: A novel polymer of triphenylamine, which may be a homopolymer of 4,4',4"-triphenylamine units, a copolymer of 4,4',4"-triphenylamine units and 1,4-benzene units or a homopolymer of 4,4'-(4"-unsubstituted or 4"-alkyl or alkoxyl) triphenylamine. This polymer is prepared by first carrying out Grignard reaction between a halogenotriphenylamine and metallic magnesium and then polymerizing the obtained Grignard reagent in a nonreactive organic solvent by using a nickel compound catalyst. This polymer acquires high conductivity by doping with an electron accepting dopant, and the conductivity is stable in the atmosphere. This polymer is useful as an electrode material in a device using a liquid electrolyte and is advantageous in being stable to repetition of electrochemical oxidation and reduction.
    Type: Grant
    Filed: April 3, 1985
    Date of Patent: January 21, 1986
    Assignee: Nissan Motor Co., Ltd.
    Inventors: Yasuyuki Murofushi, Masazumi Ishikawa, Mikio Kawai