Patents by Inventor Minoru Utsumi

Minoru Utsumi 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: 6493013
    Abstract: In the information recording an reproducing method and apparatus according to the present invention, a piece of picture image information is recorded as an analog quantity or a digital quantity an information carrying medium in a planar manner at a high density, charge potential is read for outputting electric signals to correspond to the recorded picture image information and then the outputted signals are printed out by means of various display unit or output device, with high quality and high resolution as well as ease processing of the information. The information carrying medium provides a long period of storage of information and enables stored picture image information to be repeatedly reproduced with a picture quality according to need.
    Type: Grant
    Filed: March 7, 1997
    Date of Patent: December 10, 2002
    Assignee: Dainippon Printing Co., Ltd.
    Inventors: Hiroyuki Obata, Takashi Aono, Hiroshi Mohri, Masato Koike, Hideaki Amano, Norikazu Saito, Makoto Matsuo, Minoru Utsumi, Chihaya Ogusu, Shunsuke Mukasa, Yoshiaki Kudo
  • Publication number: 20020005888
    Abstract: In the information recording an reproducing method and apparatus according to the present invention, a piece of picture image information is recorded as an analog quantity or a digital quantity an information carrying medium in a planar manner at a high density, charge potential is read for outputting electric signals to correspond to the recorded picture image information and then the outputted signals are printed out by means of various display unit or output device, with high quality and high resolution as well as ease processing of the information. The information carrying medium provides a long period of storage of information and enables stored picture image information to be repeatedly reproduced with a picture quality according to need.
    Type: Application
    Filed: March 7, 1997
    Publication date: January 17, 2002
    Applicant: DAI NIPPON PRINTING
    Inventors: HIROYUKI OBATA, TAKASHI AONO, HIROSHI MOHRI, MASATO KOIKE, HIDEAKI AMANO, NORIKAZU SAITO, MAKOTO MATSUO, MINORU UTSUMI, CHIHAYA OGUSU, SHUNSUKE MUKASA, YOSHIAKI KUDO
  • Patent number: 6025857
    Abstract: A photosensitive member which has an electrode provided on the front side and a photoconductive layer stacked on the electrode, the photosensitive member being disposed face-to-face with an electrostatic information recording medium that includes a charge retaining layer having an electrode provided on the rear side, either in or out of contact with each other, to carry out exposure with a voltage being applied between the two electrodes, thereby forming an electrostatic charge pattern on the electrostatic information recording medium in accordance with an exposure light pattern. The layer arrangements of the photosensitive member and the photoconductive layer as well as the method of forming the photoconductive layer are improved so that electrostatic information can be recorded on the electrostatic information recording medium with high sensitivity and it is also possible to improve the contrast ratio of the information charge at the exposed region to that at the unexposed region.
    Type: Grant
    Filed: August 30, 1995
    Date of Patent: February 15, 2000
    Assignee: Dai Nippon Printing Co., Ltd.
    Inventors: Hiroyuki Obata, Minoru Utsumi, Kohji Ichimura
  • Patent number: 5981123
    Abstract: The present invention relates to an electrostatic information recording medium in which a charge retaining layer having high insulating properties is laminated on an electrode, and an electrostatic information recording/reproducing process wherein, while said electrostatic information recording medium is positioned in opposition to a photosensitive member on which a photoconductive layer is laminated, the recording medium is subjected to information exposure with the application of voltage between both electrodes to accumulate electrostatic charges thereon depending upon the dosage of said information exposure, and the electrostatic information thus accumulated is reproduced by potential reading.The present electrostatic information recording medium has an information density as expressed in terms of a high recording capacity of the order of 8.times.10.sup.8 bits/cm.sup.
    Type: Grant
    Filed: September 22, 1997
    Date of Patent: November 9, 1999
    Assignee: Dai Nippon Printing Co. Ltd.
    Inventors: Makoto Matsuo, Minoru Utsumi, Masayuki Iijima, Yukio Taniguchi, Hiroyuki Obata, Seiji Take
  • Patent number: 5983057
    Abstract: In the information recording an reproducing method and apparatus according to the present invention, a piece of picture image information is recorded as an analog quantity or a digital quantity an information carrying medium in a planar manner at a high density, charge potential is read for outputting electric signals to correspond to the recorded picture image information and then the outputted signals are printed out by means of various display unit or output device, with high quality and high resolution as well as ease processing of the information. The information carrying medium provides a long period of storage of information and enables stored picture image information to be repeatedly reproduced with a picture quality according to need.
    Type: Grant
    Filed: June 5, 1995
    Date of Patent: November 9, 1999
    Assignee: Dai Nippon Printing Co. Ltd
    Inventors: Makoto Matsuo, Minoru Utsumi, Chihaya Ogusu, Shunsuke Mukasa, Yoshiaki Kudo, Hiroyuki Obata, Takashi Aono, Hiroshi Mohri, Masato Koike, Hideaki Amano, Norikazu Saito
  • Patent number: 5731116
    Abstract: The present invention relates to an electrostatic information recording medium in which a charge retaining layer having high insulating properties is laminated on an electrode, and an electrostatic information recording/reproducing process wherein, while said electrostatic information recording medium is positioned in opposition to a photosensitive member on which a photoconductive layer is laminated, the recording medium is subjected to information exposure with the application of voltage between both electrodes to accumulate electrostatic charges thereon depending upon the dosage of said information exposure, and the electrostatic information thus accumulated is reproduced by potential reading.The present electrostatic information recording medium has an information density as expressed in terms of a high recording capacity of the order of 8.times.10.sup.8 bits/cm.sup.
    Type: Grant
    Filed: May 26, 1995
    Date of Patent: March 24, 1998
    Assignee: Dai Nippon Printing Co., Ltd.
    Inventors: Makoto Matsuo, Minoru Utsumi, Masayuki Iijima, Yukio Taniguchi, Hiroyuki Obata, Seiji Take
  • Patent number: 5718996
    Abstract: The electrostatic information recording medium according to the present invention comprises an electrode layer and an electric charge retaining layer. By improving the laminating method of electric charge retaining layer or by improving the layer arrangement or by converting electrostatic information to the visible information or position information, high information retaining property can be obtained and the accumulated electrostatic information can be maintained for long period.In the electrostatic information recording method according to the present invention, an electrostatic information recording medium is placed face-to-face to a photosensitive member having photoconductive layer on an electrode. The image exposure is performed by applying voltage between two electrodes, and the electrostatic information corresponding to the image exposure is recorded on the electrostatic information recording medium.
    Type: Grant
    Filed: August 27, 1996
    Date of Patent: February 17, 1998
    Assignee: Dai Nippon Printing Co., Ltd.
    Inventors: Masayuki Iijima, Kyoji Dantani, Hiroyuki Obata, Makoto Matsuo, Minoru Utsumi, Seiji Take
  • Patent number: 5683838
    Abstract: Information recording media enable images to be recorded and reproduced with high resolution, wherein oozing of liquid crystal material thereof is prevented and the information is recorded without unevenness. A first recording medium has an information recording layer comprising a liquid crystal phase and an ultraviolet curing resin phase. The information recording layer is stacked on an electrode layer provided on a substrate by coating a mixed solution of liquid crystal and ultraviolet curing resin material on the surface of the electrode layer and then irradiating the coating by irradiation with ultraviolet rays, thereby forming a cured skin layer of the resin material on the outer surface of the information recording layer. A second recording medium has a transparent electrode layer additionally provided on the information recording layer of the first recording medium.
    Type: Grant
    Filed: December 29, 1995
    Date of Patent: November 4, 1997
    Assignee: Dai Nippon Printing Co., Ltd.
    Inventors: Masayuki Iijima, Seiji Take, Hironori Kamiyama, Masato Okabe, Hiroyuki Obata, Minoru Utsumi
  • Patent number: 5672453
    Abstract: An electrode 2c and a pinene polymer recording layer 2a with a molecular weight of 500 to 10000 are successively stacked on a substrate 2c, as shown in FIG. 3. By carrying out thermal development, information electric charge that is formed on the resin surface is formed into a thermally stable frost image without decay of the information electric charge. Since no photoconductive layer is needed, when transmitted or reflected light is used to reproduce the frost image, there is no effect of the coloring of a photoconductive layer. If exposure is effected under the application of a voltage, since the depth of dimple patterns of a frost image varies in accordance with the quantity of exposure energy, tonal reproducibility is obtained. In addition, it is possible to obtain high resolution and make an original for OHP, a microfilm, a slidefilm, etc. which is of good quality and has high fidelty to the original document.
    Type: Grant
    Filed: February 26, 1996
    Date of Patent: September 30, 1997
    Assignee: Dai Nippon Printing Co., Ltd.
    Inventors: Hiroyuki Obata, Minoru Utsumi, Masayuki Iijima, Masato Okabe, Hironori Kamiyama
  • Patent number: 5660958
    Abstract: Information recording media enable images to be recorded and reproduced with high resolution, wherein oozing of liquid crystal material thereof is prevented and the information recorded without unevenness. A first recording medium has an information recording layer comprising a liquid crystal phase and an ultraviolet curing resin phase. The information recording layer is stacked on an electrode layer provided on a substrate by coating a mixed solution of liquid crystal and ultraviolet curing resin material on the surface of the electrode layer and then irradiating the coating by irradiation with ultraviolet rays, thereby forming a cured skin layer of the resin material on the outer surface of the information recording layer. A second recording medium has a transparent electrode layer additionally provided on the information recording layer of the first recording medium.
    Type: Grant
    Filed: June 7, 1995
    Date of Patent: August 26, 1997
    Assignee: Dai Nippon Printing Co., Ltd.
    Inventors: Masayuki Iijima, Seiji Take, Hironori Kamiyama, Masato Okabe, Hiroyuki Obata, Minoru Utsumi
  • Patent number: 5650247
    Abstract: The preparation of a filter comprises illuminating a photographic material and a mask located at a given distance therefrom with light from the opposite directions to make a hologram and then reproducing an reproduced image of said hologram in the photographic material, thus making it possible to prepare a precise color filter with no need of any close contact of the mask with the photographic material and without causing the mask image to shade off. According to the reproduction of a hologram applicable as a color filter, a master hologram having recorded red, green and blue stripes is located in opposition to a photographic material, and then illuminated with light obtained by mixing the three colors from the photographic material, thus making it possible to reproduce the reproduced image in the photographic material at one exposure operation, while dispensing with a photolithographic step, precise alignment or registration, etc.
    Type: Grant
    Filed: November 15, 1990
    Date of Patent: July 22, 1997
    Assignee: Dai Nippon Printing Co., Ltd.
    Inventors: Yukio Taniguchi, Minoru Utsumi
  • Patent number: 5646927
    Abstract: A packaged integrated information recording system has a plurality of information recording media radially arranged on a disk substrate. Each of the recording media comprises a liquid crystal recording medium including a liquid crystal-polymer composite layer with polymer balls filled in a liquid-crystal phase, stacked on a first electrode layer and a photoelectric sensor including a second electrode layer and a photoconductive layer formed on a transparent substrate. The liquid crystal recording medium and photoelectric sensor are stacked directly, or through an interlayer on each other while the liquid crystal recording layer and photoconductive layer are opposed to each other. The recording media may also be arranged in a row on a film substrate provided with feed holes on both side edges and received in a closable case such that it can be drawn. Alternatively, the recording media on a film substrate may be received in a packaging case having a window openable and closable by a shutter to unroll the film.
    Type: Grant
    Filed: October 13, 1995
    Date of Patent: July 8, 1997
    Assignee: Dai Nippon Printing Co., Ltd.
    Inventors: Osamu Shimizu, Minoru Utsumi, Yuudai Yamashita, Hironori Kamiyama, Shinichi Sakano, Masato Okabe
  • Patent number: 5638103
    Abstract: In the information recording an reproducing method and apparatus according to the present invention, picture image information is recorded as an analog quantity or a digital quantity on an information carrying medium in a planar manner at a high density, charge potential is read for outputting electric signals to correspond to the recorded picture image information and then the outputted signals are printed out by means of various display unit or output device, with high quality and high resolution as well as ease processing of the information. The information carrying medium provides a long period of storage of information and enables stored picture image information to be repeatedly reproduced with a picture quality according to need.
    Type: Grant
    Filed: June 5, 1995
    Date of Patent: June 10, 1997
    Assignee: Dai Nippon Printing Co., Ltd.
    Inventors: Hiroyuki Obata, Takashi Aono, Hiroshi Mohri, Masato Koike, Hideaki Amano, Norikazu Saito, Makoto Matsuo, Minoru Utsumi, Chihaya Ogusu, Shunsuke Mukasa, Yoshiaki Kudo
  • Patent number: 5635317
    Abstract: A filter photographic material is produced by laminating together, in opposite relation, a first laminate obtained by laminating a filter layer and an adhesive layer successively on a support and a second laminate obtained by laminating a photoconductive layer and a transparent electrode layer successively on a carrier film through a release layer, followed by removal of the carrier film. Thus, it is possible to prevent the discoloration, fading, etc. of the filter layer and its preparation is made more efficient.
    Type: Grant
    Filed: April 4, 1995
    Date of Patent: June 3, 1997
    Assignee: Dai Nippon Printing Co., Ltd.
    Inventors: Yukio Taniguchi, Minoru Utsumi
  • Patent number: 5629920
    Abstract: An information recording system including a photoelectric sensor having a semiconductive, photoconductive layer stacked on an electrode, and an information recording medium having an information recording layer stacked on an electrode so that information can be recorded on the information recording layer by an electric field or electric charge. The photoelectric sensor and the information recording medium are disposed to face each other, and information exposure is carried out with a voltage being applied between the two electrodes, thereby enabling information to be recorded on the information recording medium. The photoconductive layer of the photoelectric sensor is capable of amplifying an electric field or electric charge given to the information recording medium, so that the intensity of electric field or the amount of electric charge given to the information recording medium can be increased to a level higher than the light energy actually applied.
    Type: Grant
    Filed: October 13, 1995
    Date of Patent: May 13, 1997
    Assignee: Dai Nippon Printing Co., Ltd.
    Inventors: Shinichi Sakano, Daigo Aoki, Minoru Utsumi, Masanori Akada, Osamu Shimizu
  • Patent number: 5587264
    Abstract: The electrostatic information recording medium according to the present invention comprises an electrode layer and an electric charge retaining layer. By improving the laminating method of electric charge retaining layer or by improving the layer arrangement or by converting electrostatic information to the visible information or position information, high information retaining property can be obtained and the accumulated electrostatic information can be maintained for long period.In the electrostatic information recording method according to the present invention, an electrostatic information recording medium is placed face-to-face to a photosensitive member having photoconductive layer on an electrode. The image exposure is performed by applying voltage between two electrodes, and the electrostatic information corresponding to the image exposure is recorded on the electrostatic information recording medium.
    Type: Grant
    Filed: June 5, 1995
    Date of Patent: December 24, 1996
    Assignee: Dai Nippon Printing Co. Ltd.
    Inventors: Masayuki Iijima, Kyoji Dantani, Hiroyuki Obata, Makoto Matsuo, Minoru Utsumi, Seiji Take
  • Patent number: 5571646
    Abstract: The present invention provides an electrostatic information-recording medium including an electrode layer (13) and a charge-retaining layer, in which said charge-retaining layer is formed of a laminate of a resin layer (11a) having a low glass transition temperature with a heat-resistant, insulating layer (11b), or an electrostatic information-recording medium comprising at least an electrode layer (13) and a charge-retaining layer (11) in which said charge-retaining layer (11) is formed of a polymer layer (12) containing pentafluorostyrene as a monomer component and having a weight-average molecular weight of 10,000 to 2,000,000, or which includes a photoconductive layer (44) and a charge-retaining layer (43) between a pair of electrodes (42) and (45) and is designed to carry out exposure with the application of voltage between both said electrodes (42) and (45) or apply voltage between both said electrodes (42) and (45) while exposure is carried out, thereby forming an electrostatic latent image, which is t
    Type: Grant
    Filed: November 17, 1995
    Date of Patent: November 5, 1996
    Assignee: Dai Nippon Printing Co., Ltd.
    Inventors: Minoru Utsumi, Hiroyuki Obata, Seiji Take, Masayuki Iijima, Hironori Kamiyama
  • Patent number: 5550370
    Abstract: A high-resistance compound semiconductor 12 is epitaxially grown on a low-resistance compound semiconductor 11 and a dielectric reflecting film 13 is formed thereon, thereby forming a monolithic sensor 10. As the low-resistance compound semiconductor 11, a compound semiconductor is used which has a large bandgap so as to enable probe light to pass therethrough without being absorbed and which has a lattice constant and a thermal expansion coefficient, which are close to those of the high-resistance compound semiconductor. In addition, since the low-resistance compound semiconductor 11 also serves as an electrode, a compound semiconductor which has a resistivity of 10.sup.+1 .OMEGA.cm or less is used. Since the shorter the wavelength of the probe light used, the larger the retardation change and the larger the signal output, a compound semiconductor which has a large bandgap is used as the high-resistance compound semiconductor 12 so that light of short wavelength can be used.
    Type: Grant
    Filed: March 15, 1995
    Date of Patent: August 27, 1996
    Assignee: Dai Nippon Printing Co., Ltd.
    Inventors: Atsushi Takano, Minoru Utsumi, Hiroyuki Obata
  • Patent number: 5521040
    Abstract: An electrode 2c and a pinene polymer recording layer 2a with a molecular weight of 500 to 10000 are successively stacked on a substrate 2c, as shown in FIG. 3. By carrying out thermal development, information electric charge that is formed on the resin surface is formed into a thermally stable frost image without decay of the information electric charge. Since no photoconductive layer is needed, when transmitted or reflected light is used to reproduce the frost image, there is no effect of the coloring of a photo-conductive layer. If exposure is effected under the application of a voltage, since the depth of dimple patterns of a frost image varies in accordance with the quantity of exposure energy, tonal reproducibility is obtained. In addition, it is possible to obtain high resolution and make an original for OHP, a microfilm, a slidefilm, etc. which is of good quality and has high fidelty to the original document.
    Type: Grant
    Filed: August 23, 1994
    Date of Patent: May 28, 1996
    Assignee: Dai Nippon Printing Co., Ltd.
    Inventors: Hiroyuki Obata, Minoru Utsumi, Masayuki Iijima, Masato Okabe, Hironori Kamiyama
  • Patent number: 5514504
    Abstract: Information recording media enable images to be recorded and reproduced with high resolution, wherein oozing of liquid crystal material thereof is prevented and the information recorded without unevenness. A first recording medium has an information recording layer comprising a liquid crystal phase and an ultraviolet curing resin phase. The information recording layer is stacked on an electrode layer provided on a substrate by coating a mixed solution of liquid crystal and ultraviolet curing resin material on the surface of the electrode layer and then irradiating the coating by irradiation with ultraviolet rays, thereby forming a cured skin layer of the resin material on the outer surface of the information recording layer. A second recording medium has a transparent electrode layer additionally provided on the information recording layer of the first recording medium.
    Type: Grant
    Filed: April 19, 1993
    Date of Patent: May 7, 1996
    Assignee: Dai Nippon Printing Co., Ltd.
    Inventors: Masayuki Iijima, Seiji Take, Hironori Kamiyama, Masato Okabe, Hiroyuki Obata, Minoru Utsumi