Patents Assigned to Konishiroku Photo Ind. Co., Ltd.
  • Patent number: 4715690
    Abstract: There is presented an optical screen suitable for taking a picture by placing it between the object and a photosensitive material. The optical screen has a specific means for controlling the difference in transmission density in an optically heterogeneous pattern and/or the specific area of the lower transmission density portions, typically an electrochromic display device. By use of such a single optical screen having a variable optically heterogeneous pattern, cumbersome operations for displacing one screen for another in the prior art can be obviated.
    Type: Grant
    Filed: December 31, 1986
    Date of Patent: December 29, 1987
    Assignee: Konishiroku Photo Ind. Co., Ltd.
    Inventors: Kaoru Onodera, Satoru Hohnishi, Kazuyuki Kobayashi, Kazuo Shiozawa
  • Patent number: 4705378
    Abstract: An automatic processing machine for photography which performs developing processing of a photographic light-sensitive material automatically while replenishing a replenisher solution from a replenisher tank to a processing solution tank. A pipe having orifices therein is arranged approximately centrally in the replenisher tank. A vessel loading mouth capable of holding a processing agent kit vessel obliquely to the surface of the processing solution is provided at an upper opening portion of said replenisher tank.
    Type: Grant
    Filed: April 3, 1985
    Date of Patent: November 10, 1987
    Assignee: Konishiroku Photo Ind. Co., Ltd.
    Inventors: Kazuyoshi Miyaoka, Kazuhiro Kobayashi, Satoru Kuse, Masayuki Kurematsu, Shigeharu Koboshi
  • Patent number: 4705389
    Abstract: A method and an apparatus for copying images printed on both sides of a document onto both sides of copy sheets uses an automatic document conveying device capable of reversing the side of a document to be copied. Also disclosed is a the resuming method of a copying operation after removing a jammed sheet during the reverse side copying step of the both-sided document and the delivering method of the both-sided document when the copying operation is cancelled.
    Type: Grant
    Filed: August 21, 1986
    Date of Patent: November 10, 1987
    Assignee: Konishiroku Photo Ind. Co., Ltd.
    Inventors: Yoshikazu Maekawa, Susumu Okui
  • Patent number: 4705379
    Abstract: An automatic processing machine for photography which performs developing processing of a photographic light-sensitive material automatically while replenishing a processing solution tank with a replenisher solution from a replenisher tank, wherein said replenisher tank comprises a means for circulating and stirring having a jetting section for jetting a processing solution in said replenisher tank to the vicinity of the solution surface in said replenisher tank.The automatic processing machine according to the present invention is capable of mixing and dissolving rapidly even a processing solution containing a poorly soluble alcohol to prepare a processing solution, without any need of a special and separate dissolving tank.
    Type: Grant
    Filed: April 3, 1985
    Date of Patent: November 10, 1987
    Assignee: Konishiroku Photo Ind. Co., Ltd.
    Inventors: Kazuhiro Kobayashi, Shigeharu Koboshi, Satoru Kuse, Kazuyoshi Miyaoka, Masayuki Kurematsu, Makoto Uchida
  • Patent number: 4701044
    Abstract: An image recording system capable of recording a composite image composed of a plurality of partial recording image areas comprises an electrically chargeable image carrier. Image recording area coordinate data is fed into the system to define an area to be recorded and/or image eliminating area coordinate data is fed into the system to define an area to be eliminated. Thereafter, a charge in the charged area of the image carrier is eliminated according to the recording area coordinate area. The same process is carried out for a plurality of desired areas of image data to produce a composite image.
    Type: Grant
    Filed: January 22, 1986
    Date of Patent: October 20, 1987
    Assignee: Konishiroku Photo Ind. Co., Ltd.
    Inventors: Tatsumi Horiuchi, Seitaro Kasahara, Akira Sawaki
  • Patent number: 4595279
    Abstract: A recording apparatus includes an electrostatic image support and a fixing device. The toner image formed on the electrostatic image support is transferred onto a copy paper, and the copy paper is separated from the surface of the electrostatic image support and then fed to the fixing device to fuse the toner image, for example by heat. A device is provided for distinguishing the relation in the length between the distance (A) from the separating position at which the copy paper is separated from the electrostatic image support to the fixing position of the fixing device, and the length (B) of the copy paper in the transport direction. A control device controls the relative circumferential speeds of the electrostatic image support and the copy paper transport apparatus provided inside the fixing device as a function of the distinguished relation between said lengths (A) and (B).
    Type: Grant
    Filed: October 5, 1984
    Date of Patent: June 17, 1986
    Assignee: Konishiroku Photo Ind. Co., Ltd.
    Inventors: Hiroshi Kuru, Hirofumi Sakaguchi, Takao Shiozawa
  • Patent number: 4585733
    Abstract: A method of preparing a silver halide photographic emulsion comprising silver chloride as a principal component, which comprises adding to an aqueous solution of a hydrophilic colloid, an aqueous solution of a water-soluble silver salt and an aqueous solution of a water-soluble halide according to a simultaneous mixing method, and maintaining the rate of addition of the aqueous solution of a water-soluble silver salt and that of the aqueous solution of a water-soluble halide at a level not higher than the critical growth rate of silver halide grains and, at the same time, setting and maintaining the EAg value during the addition of the aqueous solution of a water-soluble silver salt and the aqueous solution of a water-soluble halide to a level not lower than 130 mV and not higher than 160 mV, said silver halide photographic emulsion being prepared in the presence of a water-soluble rhodium salt which is added during the course of emulsification and physical ripening of the emulsion.
    Type: Grant
    Filed: May 4, 1984
    Date of Patent: April 29, 1986
    Assignee: Konishiroku Photo Ind. Co., Ltd.
    Inventors: Atsuo Ezaki, Morio Enomoto, Takehisa Kishita, Kazuo Takahashi
  • Patent number: 4517284
    Abstract: A light-sensitive silver halide photographic material having at least one silver halide emulsion layer on a support, characterized in that the said silver halide comprises silver halide grains containing at least 80 molar % of silver chloride and at least one of merocyanine dyes having the formula ##STR1## wherein R.sub.1 and R.sub.2 individually represent an alkyl group, an alkenyl group or an aryl group provided that at least one of R.sub.1 and R.sub.2 is an alkyl or aryl group having a sulfo group; R.sub.3, R.sub.4, R.sub.5 and R.sub.6 individually represent a hydrogen atom, a halogen atom, a lower alkyl group, a lower alkoxy group or a phenyl group and any one pair of R.sub.3 and R.sub.4, R.sub.5 and R.sub.6, R.sub.1 and R.sub.6 or R.sub.4 and R.sub.5 may joint each other to form a ring; X is an oxygen atom, a sulfur atom or a selenium atom; and Y is an oxygen atom, a sulfur atom or a selenium atom provided that at least one of X and Y represents a selenium atom.
    Type: Grant
    Filed: November 18, 1982
    Date of Patent: May 14, 1985
    Assignee: Konishiroku Photo Ind. Co., Ltd.
    Inventors: Nobuaki Kagawa, Noboru Fujimori, Shigeo Tanaka, Kaoru Onodera
  • Patent number: 4499181
    Abstract: A photographic recording material. On a support are provided a silver emulsion halide layer and a photographic layer. The photographic layer contains an indole compound represented by the general formula (I): ##STR1## wherein PUG represents a photographically useful group, Ball represents an organic group which has enough molecular weight and/or disposition to render the compound non-diffusible during processing of the photographic recording material with an alkaline medium and wherein the Ball contains a nitrogen atom which is directly attached to the 5th or 6th position of the indole ring. R.sub.1 represents a halogen atom or a monovalent organic group. R.sub.2 represents a hydrogen atom or a low molecular group attached, through a carbon atom, to the 2nd position of the indole ring. "m" represents an integer of zero to 3.
    Type: Grant
    Filed: June 2, 1983
    Date of Patent: February 12, 1985
    Assignee: Konishiroku Photo Ind., Co., Ltd.
    Inventors: Kazumasa Watanabe, Hidetaka Deguchi, Shunji Suginaka
  • Patent number: 4444877
    Abstract: A light-sensitive silver halide emulsion is disclosed, which comprises cores composed of silver halide grains and shells covering the cores. The cores consist essentially of silver halide containing silver iodide, and the shells consist essentially of silver bromide, silver chloride or silver chlorobromide excluding silver iodide. The shells have a thickness of from 0.01 to 0.1.mu.. This light-sensitive silver halide emulsion has high sensitivity and superior covering power.
    Type: Grant
    Filed: February 9, 1982
    Date of Patent: April 24, 1984
    Assignee: Konishiroku Photo Ind. Co., Ltd.
    Inventors: Takeo Koitabashi, Yoshihiro Haga, Syoji Matsuzaka
  • Patent number: 4407938
    Abstract: A photographic element comprising a support having thereof at least one silver halide emulsion layer and at least one temporary barrier layer, said temporary barrier layer comprising a mixture of a lactone polymer with repetitive units represented by the formula (I): ##STR1## and a vinylidene chloride terpolymer represented by the formula (II): ##STR2## wherein R is a hydrogen atom, an alkyl or an aralkyl group; R.sup.1, R.sup.2 and R.sup.3 each is a hydrogen atom or a methyl group; n.sup.1 is an integer of from 1 to 5, while n.sup.2 is an integer of 1 or 2; A is a monomer unit of a copolymerizable ethylenically unsaturated acid or of the salt thereof, while B is a copolymerizable ethylenically unsaturated monomer unit; x represents from 50 to 99.5% by weight, y represents from 0.5 to 44.5% by weight, and z represents from 0 to 49.5% by weight.
    Type: Grant
    Filed: April 19, 1982
    Date of Patent: October 4, 1983
    Assignee: Konishiroku Photo Ind. Co., Ltd.
    Inventors: Noboru Mizukura, Mikio Koyama
  • Patent number: 4155862
    Abstract: Liquid developer formulations adapted to colored toners suitable for trichromatic processes in electrophotography, the toners being lightfast organic dye pigments with substantially no photoconductivity which are mixed with a paraffinic material as a protective polymer (a dispersing liquid being used if the protective polymer is a solid) and suspended in an insulating hydrocarbon carrier medium together with a metal soap and a phenol derivative soluble in the carrier.
    Type: Grant
    Filed: June 21, 1976
    Date of Patent: May 22, 1979
    Assignee: Konishiroku Photo Ind. Co., Ltd.
    Inventors: Eugen Mohn, Hansjurg Hermann
  • Patent number: D283427
    Type: Grant
    Filed: July 21, 1983
    Date of Patent: April 15, 1986
    Assignee: Konishiroku Photo Ind. Co., Ltd.
    Inventor: Takeyoshi Iguchi
  • Patent number: D283428
    Type: Grant
    Filed: July 21, 1983
    Date of Patent: April 15, 1986
    Assignee: Konishiroku Photo Ind., Co., Ltd.
    Inventor: Takeyoshi Iguchi
  • Patent number: D285175
    Type: Grant
    Filed: January 16, 1984
    Date of Patent: August 19, 1986
    Assignee: Konishiroku Photo Ind. Co., Ltd.
    Inventor: Edwin Ewry
  • Patent number: D285178
    Type: Grant
    Filed: January 16, 1984
    Date of Patent: August 19, 1986
    Assignee: Konishiroku Photo Ind. Co., Ltd.
    Inventor: Edwin Ewry