Patents Assigned to Konishiroku Photo Industry Co., Ltd.
  • Patent number: 5032494
    Abstract: Disclosed is a method of processing a light-sensitive silver halide color photographic material comprising; subjecting to exposure a light-sensitive silver halide color photographic material comprising a support; a light-sensitive silver halide emulsion layer containing at least one of a core/shell silver halide grain containing 3.0 mole % or more of silver iodide and a tabular silver halide grain containing 3.0 mole % or more of silver iodide; and a compound capable of releasing at a developing processing a restrainer or restrainer precursor which forms silver salt having the solubility product with a silver ion, of 1.times.10.sup.-9 or less, and thereafter; carrying out a color developing processing by using a color developing solution containing an aromatic primary amine type color developing agent, for a period of 120 seconds or less and so as to have a value of (developed silver amount at the maximum density portion)/(total silver amount), of 0.5 or less.
    Type: Grant
    Filed: August 17, 1990
    Date of Patent: July 16, 1991
    Assignee: Konishiroku Photo Industry Co., Ltd.
    Inventors: Masayuki Kurematsu, Shigeharu Koboshi, Syozo Aoki, Masahiko Kon
  • Patent number: 5029017
    Abstract: In an image processing apparatus capable of enlarging/reducing operation according to the invention, there are provided an input buffer for storing an image data, an enlargement/reduction circuit for performing the enlargement/reduction processing of the image data outputted from the input buffer, an output buffer for storing the enlarged/reduced image data, and a timing circuit for controlling processing timing for the image data through the input buffer, the enlargement/reduction circuit and the output buffer. The timing circuit respectively controls the data read-out timing from the input buffer and the data write-in timing into the output buffer in accordance with the designated enlargement/reduction ratio by regulating the frequency of clock pulse.
    Type: Grant
    Filed: June 7, 1990
    Date of Patent: July 2, 1991
    Assignee: Konishiroku Photo Industry Co., Ltd.
    Inventors: Yoshinori Abe, Masahiko Matsunawa
  • Patent number: 5023170
    Abstract: A light-sensitive silver halide color photographic material, having at least one light-sensitive silver halide emulsion layer on a support, wherein at least one of said emulsion layer contains light-sensitive silver halide grains having outer surfaces principally comprised of {100} face, and a magenta dye image forming coupler represented by Formula (I) shown below: ##STR1## wherein Z represents a group of nonmetal atom necessary for formation of a nitrogen-containing hetero ring; said ring formed by Z may have a substituent; X represents a hydrogen atom or a substituent eliminable by the reaction with an oxidant in a color developing agent; and R represents a hydrogen atom or a substituent,which can provide a light-sensitive silver halide color photographic material having high sensitivity, being low in fogs, and having improved color reproducibility.
    Type: Grant
    Filed: August 21, 1990
    Date of Patent: June 11, 1991
    Assignee: Konishiroku Photo Industry Co., Ltd.
    Inventors: Masanobu Miyoshi, Makoto Kajiwara, Kaoru Onodera
  • Patent number: 5019493
    Abstract: A silver halide photographic material that has at least one silver halide emulsion layer containing a phenolic cyan coupler of the general formula (I) and an amine of the general formula (II). The maximum absorption of the dye formed in sufficiently shifted to a longer wavelength range of the spectrum to achieve satisfactory color reproduction. The dye image produced has a high maximum density and improved keeping quality.
    Type: Grant
    Filed: January 29, 1990
    Date of Patent: May 28, 1991
    Assignee: Konishiroku Photo Industry Co., Ltd.
    Inventors: Hirokazu Sato, Shigeto Hirabayashi
  • Patent number: 5015560
    Abstract: A method of treating a waste solution resulting from the processing of a photographic material with a working solution is disclosed, wherein at least part of said waste solution is absorbed by a resin capable of absorbing at least 50 times its own weight of a liquid.
    Type: Grant
    Filed: January 10, 1989
    Date of Patent: May 14, 1991
    Assignee: Konishiroku Photo Industry Co., Ltd.
    Inventors: Shigeharu Koboshi, Kazuhiro Kobayashi, Syozo Aoki, Naoki Takabayashi
  • Patent number: 5006454
    Abstract: A silver halide photographic material comprising a silver halide emulsion layer containing (1) a pyrazoloazole magenta coupler, (2) an anti-color-fading agent having an oxidation potential (Eox) of 0.95(V)<Eox<1.50(V) and (3) a hydroquinone derivative.
    Type: Grant
    Filed: November 23, 1988
    Date of Patent: April 9, 1991
    Assignee: Konishiroku Photo Industry Co., Ltd.
    Inventors: Masao Sasaki, Toyoki Nishijima, Shun Takada, Kaoru Onodera
  • Patent number: 4996093
    Abstract: There is disclosed a thermal transfer recording medium comprising a support, two or more coloring agent layer and optionally an intermediate layer, wherein one of the coloring agent layers contains a first heat-fusible substance selected from the group consisting of animal waxes, plant waxes, mineral waxes, petroleum waxes, synthetic hydrocarbon waxes and modified waxes and a layer adjacent to the coloring agent layer containing the first heat-fusible substance which contains a second heat-fusible substance which is immiscible with the first heat-fusible substance.According to the thermal transfer recording medium of the present invention, transferred images with constant transfer density can be obtained with an application energy at a certain level or higher and constant printed letter quality can be obtained for multiple times without being influenced by the subtle change in the application energy.
    Type: Grant
    Filed: December 7, 1989
    Date of Patent: February 26, 1991
    Assignee: Konishiroku Photo Industry Co., Ltd.
    Inventors: Kunihiro Koshizuka, Takao Abe, Tatsuichi Maehashi, Yoshihiro Inaba
  • Patent number: 4992358
    Abstract: A color photographic light-sensitive material comprising a reflective support having thereon a plurality of silver halide emulsion layers of which the emulsion layer located farthest from said support has, on each of both the support side thereof and the uppermost side at least one nonlight-sensitive layer containing an effective amount of an ultraviolet absorbing agent, said ultraviolet absorbing agent being used in said nonlight-sensitive layer on the uppermost side of said emulsion layer being a 2-(2'-hydroxyphenyl)benzotriazole-type compound which is in the liquid form at normal room temperature.
    Type: Grant
    Filed: March 30, 1989
    Date of Patent: February 12, 1991
    Assignee: Konishiroku Photo Industry Co., Ltd.
    Inventors: Masao Sasaki, Kaoru Onodera
  • Patent number: 4990437
    Abstract: A silver halide photographic light-sensitive materially having at least one silver halide emulsion layer comprising a magenta coupler represented by formula I and negative type silver halide grains having a core-shell structure which consists of:(a) an inner core consisting essentially of silver bromide or silver iodobromide; and(b) a plurality of shells consisting essentially of silver bromide or silver iodobromide comprising:(i) an outermost shell containing 0 to 10 mol % of silver iodide;a high iodide-containing shell provided inside said outermost shell having a silver iodide content at least 6 mol % higher than that of the outermost shell; and(iii) an intermediate shell provided between the outermost shell and the high iodide-containing shell having a silver iodide content at least 3 mol % higher than that of the outermost shell, and at least 3 mol % lower than that of the high iodide-containing shell: ##STR1## Wherein Z represents a group of non-metallic atoms necessary to complete a nitrogen-containing
    Type: Grant
    Filed: June 20, 1989
    Date of Patent: February 5, 1991
    Assignee: Konishiroku Photo Industry Co., Ltd.
    Inventors: Toshifumi Iijima, Kenji Kumashiro, Syoji Matsuzaka, Hiroshi Kashiwagi
  • Patent number: 4990432
    Abstract: A silver halide photographic light-sensitive material comprising a reflective support having a transmission density of not more than 0.8, having thereon, a photographic component layer comprising a silver halide emulsion layer and a layer including at least one anti-halation layer formed closer to said support than said silver halide emulsion layer is disclosed. In the photographic material, degradation of image sharpness due to use of a reflective support having low transmission density is prevented.
    Type: Grant
    Filed: November 24, 1989
    Date of Patent: February 5, 1991
    Assignee: Konishiroku Photo Industry Co., Ltd.
    Inventors: Hajime Komatsu, Susumu Ohkawachi, Yasuo Tosaka, Bunzo Ueda, Keiichi Hoshimo
  • Patent number: 4978580
    Abstract: A thermal transfer recording medium comprising a support and, provided thereon in order from the support, a heat-fusible layer containing a heat-fusible substance and a thermoplastic layer containing a thermoplastic resin, a coloring agent and a cross-linking polymer.
    Type: Grant
    Filed: March 14, 1989
    Date of Patent: December 18, 1990
    Assignee: Konishiroku Photo Industry Co., Ltd.
    Inventors: Toshiaki Tezuka, Takao Abe
  • Patent number: 4977069
    Abstract: A silver halide color photographic light-sensitive material comprising a support having arranged thereon at least two each of red-sensitive layers, green-sensitive layers and blue-sensitive layers, wherein, with respect to each of the red-sensitive layers, the blue-sensitive layers and the green-sensitive layers, there are not less than two silver halide layers having different sensitivities, said material satisfying the following four requirements:a. the highest blue-sensitive silver halide emulsion layer (BH) is arranged to serve as the silver halide emulsion layer in the farthest position from the support;b. the highest green-sensitive silver halide emulsion layer (GH) and the highest red-sensitive silver halide emulsion layer (RH) are interposed between the highest blue-sensitive silver halide emulsion layer (BH) and a lower blue-sensitive silver halide emulsion layer (Bh);c.
    Type: Grant
    Filed: April 13, 1990
    Date of Patent: December 11, 1990
    Assignee: Konishiroku Photo Industry Co., Ltd.
    Inventors: Toshifumi Iijima, Yoshitaka Yamada, Kenji Kumashiro, Hideo Akamatsu, Takashi Kamio
  • Patent number: 4973546
    Abstract: A light-sensitive silver halide photographic material comprising a magenta coupler represented by the formula I: ##STR1## at least one magenta image stabilizer represented by formula XII: ##STR2## at least one magenta dye image stabilizer selected from a group consisting of a compound represented by general formulas XIIIa and XIIIb: ##STR3##
    Type: Grant
    Filed: July 26, 1988
    Date of Patent: November 27, 1990
    Assignee: Konishiroku Photo Industry Co., Ltd.
    Inventors: Yutaka Kaneko, Kenzi Kadokura
  • Patent number: 4970536
    Abstract: An apparatus having a plurality of developing devices for forming a multiple toner picture image composed of a plurality of layer toner picture images prepared from developed latent picture images formed on an image retainer by turning the image retainer a plurality of times. In the apparatus, latent reference images of different colors are formed on regions of the image retainer based on reference signals and the plurality of developing devices are used to develop the latent reference images to form a plurality of reference toner images. The data derived from the reference toner images is used to set up the image-forming conditions for forming a latent picture image on a common region of the image retainer, based on picture image signals received by the apparatus, when the toner picture image is formed on the image retainer.This application is a continuation of U.S. Ser. No. 849,709, filed Apr. 9, 1986, now abandoned, which in turn is a division of U.S. Ser. No. 757,519, filed July 19, 1984, now abandoned.
    Type: Grant
    Filed: June 9, 1988
    Date of Patent: November 13, 1990
    Assignee: Konishiroku Photo Industry Co., Ltd.
    Inventors: Satoshi Haneda, Hisashi Shoji, Seiichiro Hiratsuka
  • Patent number: 4968594
    Abstract: A negative-working silver halide color photographic material is disclosed which has at least one silver halide emulsion layer on a support, said material including a pyrazolotriazole-based magenta coupler and means for forming an unsharp positive image.
    Type: Grant
    Filed: June 1, 1989
    Date of Patent: November 6, 1990
    Assignee: Konishiroku Photo Industry Co., Ltd.
    Inventors: Hiroshi Shimazaki, Mitsuto Fujiwhara
  • Patent number: 4968574
    Abstract: The present invention relates to toners for electrophotography wherein the main resin component comprises a lower molecular weight polymer and a higher molecular weight polymer each of which is different from the other wherein the higher molecular weight polymer has a glass transition point of at least 50.degree. C. and the lower molecular weight polymer has a glass transition point no higher than 65.degree. C. The above polymers comprise one or more polymers selected from styrene polymers, arcylic polymers, and styrene-acrylic copolymers. Generally, the lower molecular weight polymer has a weight average molecular weight of 50,000 or less and the higher molecular weight polymer has a weight average molecular weight of 80,000 or more.
    Type: Grant
    Filed: January 9, 1986
    Date of Patent: November 6, 1990
    Assignees: Sekisui Chemical Co., Ltd., Konishiroku Photo Industry Co., Ltd.
    Inventors: Hideaki Morita, Takahira Kasuya, Goichi Yamakawa, Makoto Tomono, Hirozo Funaki, Minoru Kohara
  • Patent number: 4968573
    Abstract: In a method of developing an electrostatic latent image formed on an electrostatic latent image-carrying member with a developer comprising a magnetic carrier and a toner in a non-contact manner under application of an oscillating electric field to a development region, the improvement comprising the surface of said magnetic carrier is covered with an insulating material, and magnetization (M) of said magnetic carrier when measured under application of a magnetic field of 1000 Oersted and weight average diameter (R) of the same expressed in terms of micro meter satisfy the following relation:30.ltoreq.M.ltoreq.-0.8 R+150(wherein 10.ltoreq.R.ltoreq.150).
    Type: Grant
    Filed: December 16, 1986
    Date of Patent: November 6, 1990
    Assignee: Konishiroku Photo Industry Co., Ltd.
    Inventors: Tadashi Kaneko, Yuki Okuyama, Mitsutaka Arai, Yoko Yamamoto, Satoru Ikeuchi
  • Patent number: 4966856
    Abstract: An analytical element and method using the element for measuring a specific component in a fluid sample such as blood, serum, plasma, urine, sweat etc. The fluid sample is applied on the element with a labeled-material formed by binding the specific component or the analogue of it with a labeling material causing a signal. The element comprises a reaction layer and an absorption layer. The reaction layer contains a material which is capable of specifically binding with the component to be measured and the absorption layer contains a material which capable of binding with the labeled material and decreasing a signal caused by the labeling material. A strength of the signal caused labeled-material in the reaction layer is determined to measure the specific component.
    Type: Grant
    Filed: October 15, 1987
    Date of Patent: October 30, 1990
    Assignee: Konishiroku Photo Industry Co., Ltd.
    Inventors: Tsukasa Ito, Satoshi Kawakatsu, Akira Onishi, Masayo Takekoshi
  • Patent number: H874
    Abstract: A silver halide photographic light-sensitive material is disclosed which is excellent in the super-rapid processability. The photographic material comprises a support having thereon at least one hydrophilic colloid layer comprising at least one silver halide emulsion layer. The hydrophilic colloid layer is formed by one or more times of coating provided that wet thickness of the layers coated in each time of coating is within the range of from 35 to 80 .mu.m, and a total content of gelatin of the whole hydrophilic colloid is in an amount of from 2.20 to 3.10 g/m.sup.2. The photographic material is suitable for super-rapid processing by an automatic processor for 20 to 60 seconds.
    Type: Grant
    Filed: August 29, 1989
    Date of Patent: January 1, 1991
    Assignee: Konishiroku Photo Industry Co., Ltd.
    Inventors: Akio Suzuki, Satoru Nagasaki
  • Patent number: H899
    Abstract: Disclosed is a light-sensitive silver halide photographic element which comprises photographic layers applied under the condition that the surface tension of a coating solution for forming an outermost layer is 6 dyn/cm or more smaller than the surface tension of a solution for forming a layer adjacent to the outermost layer, and satisfying at least one of the conditions shown below:(a) gelatin contained in at least the side of a support having a light-sensitive silver halide emulsion layer and a hydrophilic colloid layer is in an amount of 2.20 to 3.10 g/m.sup.2,(b) the photographic layers are formed by the constitution such that said coating solution for forming the outermost layer and said solution for forming the layer adjacent thereto each have a viscosity of 20 cp or less.
    Type: Grant
    Filed: March 21, 1990
    Date of Patent: March 5, 1991
    Assignee: Konishiroku Photo Industry Co., Ltd.
    Inventors: Akio Suzuki, Satoru Nagasaki, Eiji Yoshida, Masumi Hosaka