Patents by Inventor Hisashi Shiraishi

Hisashi Shiraishi 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: 4617468
    Abstract: A stimulable phosphor sheet preferably employable in autoradiography which comprises a substrate, a phosphor layer being provided on the substrate and comprising a stimulable phosphor dispersed in a binder, and a protective layer provided on the phosphor layer, characterized in that the surface of the protective layer is hydrophilic.The surface of the protective layer can be made hydrophilic by hydrophilic processing applied thereto or provision of a hydrophilic layer thereon.
    Type: Grant
    Filed: February 23, 1984
    Date of Patent: October 14, 1986
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Hisashi Shiraishi, Hisatoyo Kato, Junji Miyahara
  • Patent number: 4600641
    Abstract: An element for electrophoresis comprising the following three-layer structure laminated in the order:(I) a support layer;(II) an adhesive layer comprising a polymer having at least one specifically selected repeating unit; and(III) a medium layer for electrophoresis comprising an aqueous polyacrylamide gel formed by crosslinking polymerization of an acrylamide compound and a crosslinking agent in the presence of water.
    Type: Grant
    Filed: June 26, 1985
    Date of Patent: July 15, 1986
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Masashi Ogawa, Hisashi Shiraishi, Teppei Ikeda
  • Patent number: 4579783
    Abstract: An element for electrophoresis comprising the following three-layer structure laminated in the order:(I) a support layer;(II) an adhesive layer comprising a copolymer having at least one specifically selected repeating unit; and(III) a medium layer for electrophoresis comprising an aqueous polyacrylamide gel formed by crosslinking polymerization of an acrylamide compound and a crosslinking agent in the presence of water, and a compound containing at least one carbamoyl group (modifier).
    Type: Grant
    Filed: May 18, 1984
    Date of Patent: April 1, 1986
    Assignee: Director of The Finance Division, Minister's Secretariat, Science & Technology Agency
    Inventors: Masashi Ogawa, Hisashi Shiraishi, Teppei Ikeda
  • Patent number: 4548870
    Abstract: An element for electrophoresis comprising the following three-layer structure laminated in the order:(I) a support layer;(II) an adhesive layer comprising a polymer having at least one specifically selected repeating unit;and(III) a medium layer for electrophoresis comprising an aqueous polyacrylamide gel formed by crosslinking polymerization of an acrylamide compound and a crosslinking agent in the presence of water.
    Type: Grant
    Filed: March 12, 1984
    Date of Patent: October 22, 1985
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Masashi Ogawa, Hisashi Shiraishi, Teppei Ikeda
  • Patent number: 4548869
    Abstract: An element for electrophoresis comprising the following three-layer structure laminated in the order:(I) a support layer;(II) an adhesive layer comprising a polymer having at least one specifically selected repeating unit; and(III) a medium layer for electrophoresis comprising an aqueous polyacrylamide gel formed by crosslinking polymerization of an acrylamide compound and a crosslinking agent in the presence of water, and a compound containing at least one carbamoyl group (modifier).
    Type: Grant
    Filed: March 12, 1984
    Date of Patent: October 22, 1985
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Masashi Ogawa, Hisashi Shiraishi, Teppei Ikeda
  • Patent number: 4268627
    Abstract: A photographic light-sensitive material is described comprising at least one hydrophilic colloidal layer containing a hardener and further containing as an acid-captor at least one compound represented by formula (I) or (II): ##STR1## wherein R.sub.1 represents hydrogen, a lower alkyl group containing 5 or less carbon atoms, an alkoxy group containing 5 or less carbon atoms, or a halogen atom, and R.sub.2 and R.sub.3 each independently represents hydrogen, an alkyl group containing 10 or less carbon atoms, an aryl group containing from 6 to 12 carbon atoms, or an alkoxycarbonyl group containing 5 or less carbon atoms.
    Type: Grant
    Filed: June 13, 1980
    Date of Patent: May 19, 1981
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Hidefumi Sera, Katuzi Kitatani, Masasi Ogawa, Kunio Ishigaki, Hisashi Shiraishi
  • Patent number: 4173481
    Abstract: A photographic silver halide light-sensitive material having at least one hydrophilic colloid layer containing gelatin and/or a gelatin derivative hardened with a compound represented by the following general formula (I): ##STR1## wherein a and d each represents 1 or 2; b and c each represents 0, 1 or 2 with the proviso that both b and c are not simultaneously 0; R represents a divalent group; and n is 0 or 1, which compound provides a preferred hardening rate and does not adversely affect the photographic properties of photographic light-sensitive materials, and a method of hardening gelatin and/or a gelatin derivative comprising treating the gelatin and/or the gelatin derivative with a compound represented by the general formula (I) above.
    Type: Grant
    Filed: November 1, 1977
    Date of Patent: November 6, 1979
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Hidefumi Sera, Tsumoru Ishii, June Yamaguchi, Hisashi Shiraishi
  • Patent number: 4137082
    Abstract: A photographic silver halide light-sensitive material having at least one hydrophilic colloid layer containing (a) gelatin and/or a gelatin derivative and (b) at least one compound represented by the following general formula (I) or (II): ##STR1## wherein Y represents a vinyl group; A represents a divalent group; R, which may be the same or different, each represents a hydrogen atom or a hydrocarbon group having 1 to 4 carbon atoms; and n is 0 or 1. The compounds of the general formulas (I) and (II) are novel class of gelatin hardeners which are particularly suitable for use in silver halide photographic light-sensitive materials.
    Type: Grant
    Filed: September 27, 1977
    Date of Patent: January 30, 1979
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Hidefumi Sera, Tsumoru Ishii, June Yamaguchi, Hisashi Shiraishi
  • Patent number: 4127963
    Abstract: A toy doll provided with a torso and arms mounted to move with respect to the torso, a writing instrument to be held by one of the arms, a motor, a mechanism operatively connecting the one arm to the motor to cause the arm to oscillate with respect to the torso to move the writing instrument in a predetermined pattern, a platform provided with a plate mounted to rotate with respect to the platform and on top of which there is provided a drawing medium, and a mechanism operatively connecting the motor to the plate through the other of the arms to cause the plate and the writing medium contained thereon to rotate, the drawing that is provided being the result of the combined oscillating movement of the writing instrument and the rotation of the medium engaged by the writing instrument.
    Type: Grant
    Filed: November 18, 1976
    Date of Patent: December 5, 1978
    Assignee: Tomy Kogyo Co., Inc.
    Inventor: Hisashi Shiraishi
  • Patent number: 4111926
    Abstract: A hardening agent for gelatin comprising a compound represented by the formula (I): ##STR1## wherein R represents an n-valent organic group, Z represents an atomic group necessary to complete a 5- or 6-membered ring and n represents 1, 2 or 3; and a method for hardening gelatin comprising treating gelatin with a compound represented by the formula (I) above.
    Type: Grant
    Filed: February 1, 1977
    Date of Patent: September 5, 1978
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Hidefumi Sera, Hisashi Shiraishi, Tsumoru Ishii
  • Patent number: 3967965
    Abstract: A photographic light-sensitive material comprising a support having thereon at least one silver halide photographic emulsion layer and at least one of the layers of the photographic light-sensitive material containing a compound represented by the following general formula (I) or (II); ##EQU1## wherein R.sub.1, R.sub.2 and R.sub.3 each represents a hydrogen atom, an alkyl group, an aryl group or a heterocyclic residue, or R.sub.1 and R.sub.2 can combine to form a ring; and Z represents an alkylene group; or an organic acid salt or a mineral acid salt of the compound represented by the general formula (I) or (II). The photographic material can be developed at an elevated temperature without fog information and a decrease in photographic sensitivity.
    Type: Grant
    Filed: January 14, 1975
    Date of Patent: July 6, 1976
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Keiichi Adachi, Akikazu Mikawa, Ikutaro Horie, Hisashi Shiraishi
  • Patent number: 3947274
    Abstract: A photographic light-sensitive material comprising a support having thereon at least one silver halide photographic emulsion layer with at least one of the layers of the photographic light-sensitive material containing a compound represented by the following general formula (I) or (II) ##EQU1## wherein R.sub.1, R.sub.2, and R.sub.3 each represents a hydrogen atom, an alkyl group, an aryl group or a heterocyclic ring residue, and R.sub.2 and R.sub.3 can combine to form an alkylene group; R.sub.4 represents those groups other than a hydrogen atom as described for R.sub.1, R.sub.2 and R.sub.3 ; and R.sub.5 represents an alkylene group of a polyoxyalkylene group having at least 4 carbon atoms, or the organic acid salt or mineral acid salt thereof.
    Type: Grant
    Filed: May 14, 1974
    Date of Patent: March 30, 1976
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Akikazu Mikawa, Ikutaro Horie, Keiichi Adachi, Hisashi Shiraishi