Patents by Inventor Junji Nakano

Junji Nakano 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: 11371130
    Abstract: A hot-dip Sn—Zn-based alloy-plated steel sheet according to an aspect of the present invention includes: a steel sheet having a predetermined chemical composition; a diffusion alloy layer provided on one surface or both surfaces of the steel sheet; and a Sn—Zn-plated layer provided on the diffusion alloy layer, in which the diffusion alloy layer contains Fe, Sn, Zn, Cr, and Ni, an area ratio of a Sn—Fe—Cr—Zn phase to a Sn—Fe—Ni—Zn phase in the diffusion alloy layer is 0.01 or more and less than 2.5, the diffusion alloy layer has a coverage of 98% or more with respect to the one surface, the Sn—Zn-plated layer contains 1% to 20% of Zn by mass % and a remainder consisting of Sn and impurities, and an adhesion amount of the Sn—Zn-plated layer is 10 to 80 g/m2 per one surface.
    Type: Grant
    Filed: April 26, 2019
    Date of Patent: June 28, 2022
    Assignee: NIPPON STEEL CORPORATION
    Inventors: Masahiro Fuda, Toshinori Mizuguchi, Junji Nakano, Yoshiharu Inoue, Kazuhisa Kusumi, Yasuaki Naito
  • Publication number: 20210156017
    Abstract: A hot-dip Sn—Zn-based alloy-plated steel sheet according to an aspect of the present invention includes: a steel sheet having a predetermined chemical composition; a diffusion alloy layer provided on one surface or both surfaces of the steel sheet; and a Sn—Zn-plated layer provided on the diffusion alloy layer, in which the diffusion alloy layer contains Fe, Sn, Zn, Cr, and Ni, an area ratio of a Sn—Fe—Cr—Zn phase to a Sn—Fe—Ni—Zn phase in the diffusion alloy layer is 0.01 or more and less than 2.5, the diffusion alloy layer has a coverage of 98% or more with respect to the one surface, the Sn—Zn-plated layer contains 1% to 20% of Zn by mass % and a remainder consisting of Sn and impurities, and an adhesion amount of the Sn—Zn-plated layer is 10 to 80 g/m2 per one surface.
    Type: Application
    Filed: April 26, 2019
    Publication date: May 27, 2021
    Applicant: Nippon Steel Corporation
    Inventors: Masahiro FUDA, Toshinori MIZUGUCHI, Junji NAKANO, Yoshiharu INOUE, Kazuhisa KUSUMI, Yasuaki NAITO
  • Patent number: 5618645
    Abstract: An electrophotographic printing plate precursor is disclosed, which is formed by forming a toner image on a photoconductive layer of an electrophotographic photoreceptor comprising at least a conductive support and a photoconductive layer and then by removing a non-image area on the photoconductive layer other than a toner-image area, wherein said photoconductive layer comprises at least (1) an organic photoconductive compound, (2) a binder resin which is dissolved or swelled in an alkaline solution, and (3) a phosphoric acid or an analogue thereof.
    Type: Grant
    Filed: March 17, 1995
    Date of Patent: April 8, 1997
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Junji Nakano, Nobuo Suganuma, Hiromichi Tachikawa
  • Patent number: 5219687
    Abstract: In an electrophotographic lithographic printing plate precursor comprising a photoconductive layer on an electrically conductive support having a hydrophilic surface thereon which is subjected to a process which comprises formation of a toner image on said photootoconductive layer, and then removal of said photoconductive layer from nonimage portions other than said toner image portion to form a lithographic printing plate, an electrophotographic lithographic printing plate precursor treated with a water-soluble or water-dispersible solid material (edge face treatment) at the edge face thereof and a water-soluble or water-dispersible solid adge face treatment therefor. In a preferred embodiment, the edge face treatmetment is a water-soluble or water-dispersible solid drawing material.
    Type: Grant
    Filed: November 26, 1991
    Date of Patent: June 15, 1993
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Nobuo Suzuki, Junji Nakano, Hiromichi Tachikawa, Yutaka Sakasai
  • Patent number: 5164392
    Abstract: A quinoline derivative of the formula ##STR1## wherein Z is an amino group or a halogen atom, and R.sub.1, R.sub.2 and R.sub.3 are the same or different and each represents a hydrogen atom or a lower alkyl group having 1 to 5 carbon atoms,and an ester thereof and a salt of the derivative or the ester and processes for preparation thereof. These compounds show excellent antibacterial activity and are useful as antibacterial agents.
    Type: Grant
    Filed: October 17, 1988
    Date of Patent: November 17, 1992
    Assignee: Dainippon Pharmaceutical Co., Ltd.
    Inventors: Jun-ichi Matsumoto, Akira Minamida, Masahiro Fujita, Tohru Hirose, Junji Nakano, Shinichi Nakamura
  • Patent number: 5013841
    Abstract: A quinoline derivative of the formula ##STR1## wherein Z is an amino group or a halogen atom, and R.sub.1, R.sub.2 and R.sub.3 are the same or different and each represents a hydrogen atom or a lower alkyl group having 1 to 5 carbon atoms,and an ester thereof and a salt of the derivative or the ester and processes for preparation thereof. These compounds show excellent antibacterial activity and are useful as antibacterial agents.
    Type: Grant
    Filed: August 4, 1989
    Date of Patent: May 7, 1991
    Assignee: Dainippon Pharmaceutical Co., Ltd.
    Inventors: Jun-ichi Matsumoto, Akira Minamida, Masahiro Fujita, Tohru Hirose, Junji Nakano, Shinichi Nakamura
  • Patent number: 4738968
    Abstract: The present invention relates to a 1,8-naphthyridine derivative of the formula ##STR1## wherein X is a fluorine or chlorine atom, and R is a hydrogen atom, or a methyl or ethyl group;and esters thereof and salts thereof are processes for preparation thereof. These compounds show excellent anti-bacterial activity and are useful antibacterial agents.
    Type: Grant
    Filed: February 12, 1986
    Date of Patent: April 19, 1988
    Assignee: Dainippon Pharmaceutical Co., Ltd.
    Inventors: Jun-ichi Matsumoto, Junji Nakano, Katsumi Chiba, Shinichi Nakamura
  • Patent number: 4618553
    Abstract: An electrophotographic recording material is disclosed. The material comprises a support having provided thereon a photoconductive layer, in which a backing layer containing a long-chain alkanoic acid metal salt is provided on the reverse side of the support. The material has improved slipping property and excellent running durability.
    Type: Grant
    Filed: May 28, 1985
    Date of Patent: October 21, 1986
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Yasuaki Yuyama, Junji Nakano, Shyunichi Kondo, Hideo Sato, Kenichi Sawada
  • Patent number: 4594303
    Abstract: An electrophotographic photoreceptor which has an electrophotographic photoreceptive layer containing as a charge generating material a particular organic compound having the general formula described hereinafter in this disclosure in a combination with a charge transporting material. The compounds improve upon the sensitivity, durability and selectivity to photosensitive wavelengths of photoreceptors. Furthermore, the photoreceptors can be easily manufactured.
    Type: Grant
    Filed: August 28, 1985
    Date of Patent: June 10, 1986
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Seiji Horie, Masayoshi Nagata, Junji Nakano, Hideo Sato
  • Patent number: 4500622
    Abstract: An electrophotographic light-sensitive printing material having a high sensitivity and forming a good printing plate capable of providing clear copies having less stains at non-image areas is disclosed. The material is comprised of a conductive support having formed thereon an electrophotographic light-sensitive layer containing (a) a hydrazone compound, (b) a barbituric acid derivative, a thiobarbituric acid derivative or other charge generating material, and (c) a resin binder.
    Type: Grant
    Filed: March 9, 1982
    Date of Patent: February 19, 1985
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Seiji Horie, Junji Nakano, Masayoshi Nagata, Hideo Sato
  • Patent number: 4477550
    Abstract: An electrophotographic photoreceptor is described comprising an N-arylamino substituted hydrazone compound represented by formula (I), (II), or (III), in a light-sensitive layer thereof provided on a conductive support; formulae (I), (II), and (III) are as follows: ##STR1## wherein X represents O, S or N--R.sup.6 ; R.sup.1 and R.sup.2 each represents a non-substituted or a substituted straight or branched chain alkyl group containing from 1 to 12 carbon atoms, a non-substituted or a substituted straight or branched chain aralkyl group containing from 7 to 20 carbon atoms, or a non-substituted or a substituted aryl group, the aryl group including monovalent residues of monocyclic aromatic rings and condensed polycyclic aromatic rings having from 2 to 4 rings therein; R.sup.3, R.sup.4, R.sup.5, and R.sup.
    Type: Grant
    Filed: May 4, 1983
    Date of Patent: October 16, 1984
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Seiji Horie, Masayoshi Nagata, Junji Nakano, Hideo Sato
  • Patent number: 4476208
    Abstract: Novel compounds are disclosed which are composed of a barbituric acid residue or a thiobarbituric acid residue and a pyrylium salt residue, thiopyrylium salt residue, benzopyrylium salt residue, or a benzothiopyrylium salt residue. The compounds are suitable as charge generating materials for an electrophotographic light-sensitive material of the type containing a charge generating material and a charge transporting material in one layer or two separate layers. The use of the compounds improves the durability and light-sensitivity of the light-sensitive material.
    Type: Grant
    Filed: December 23, 1982
    Date of Patent: October 9, 1984
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Seiji Horie, Junji Nakano, Hideo Sato
  • Patent number: 4469768
    Abstract: An electrophotographic light-sensitive material with an electrophotographic light-sensitive layer containing a charge-generating material and a charge-transporting material is described.The material is characterized in that the charge-generating material is a compound represented by the general formula (I) or (II): ##STR1## (wherein the symbols are the same as defined in the claims).
    Type: Grant
    Filed: June 14, 1982
    Date of Patent: September 4, 1984
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Seiji Horie, Masayoshi Nagata, Junji Nakano, Hideo Sato
  • Patent number: 4450219
    Abstract: An electrophotographic photoreceptor is disclosed, which is comprised of a conductive support having thereon an electrophotographic photoreceptive layer containing a charge generating material and a charge transporting material. The charge generating material is a particular compound having both a barbituric acid nucleus or thiobarbituric acid nucleus and a heterocyclic ring residue.
    Type: Grant
    Filed: June 24, 1982
    Date of Patent: May 22, 1984
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Seiji Horie, Junji Nakano, Hideo Sato
  • Patent number: 4423130
    Abstract: In an electrophotographic light-sensitive material having on a conductive support a light-sensitive layer composed of a charge generating material and a charge transporting material. A hydrazone compound is used as the charge transporting material for providing the light sensitive layer having high sensitivity and less residual surface potential. The light-sensitive layer is stable to oxidation by ozone generated by corona discharging as well as to heat and light, results in less dark decay of the surface potential. Furthermore, the layer shows less deviation in residual potential and sensitivity due to repeated use.
    Type: Grant
    Filed: March 11, 1982
    Date of Patent: December 27, 1983
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Seiji Horie, Junji Nakano, Hideo Sato
  • Patent number: 4403025
    Abstract: An electrophotographic photoreceptor is described comprising an N-arylamino substituted hydrazone compound represented by formula (I), (II), or (III), in a light-sensitive layer thereof provided on a conductive support; formulae (I), (II), and (III) are as follows: ##STR1## wherein X represents O, S or N--R.sup.6 ; R.sup.1 and R.sup.2 each represents a non-substituted or a substituted straight or branched chain alkyl group containing from 1 to 12 carbon atoms, a non-substituted or a substituted straight or branched chain aralkyl group containing from 7 to 20 carbon atoms, or a non-substituted or a substituted aryl group, the aryl group including monovalent residues of monocyclic aromatic rings and condensed polycyclic aromatic rings having from 2 to 4 rings therein; R.sup.3, R.sup.4, R.sup.5, and R.sup.
    Type: Grant
    Filed: June 24, 1981
    Date of Patent: September 6, 1983
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Seiji Horie, Masayoshi Nagata, Junji Nakano, Hideo Sato
  • Patent number: 4396694
    Abstract: An electrophotographic sensitive material is described comprising an electrophotographic sensitive layer containing a compound represented by the formula (1) ##STR1## wherein R.sup.1 and R.sup.2 each represents an unsubstituted or substituted straight chain or branched chain alkyl group having from 1 to 12 carbon atoms, an unsubstituted or substituted straight chain or branched chain aralkyl group having from 7 to 20 carbon atoms or an aryl group consisting of a monovalent group consisting of an unsubstituted or substituted monocyclic aromatic hydrocarbon or polycyclic aromatic hydrocarbon having from 2 to 4 nuclei from which a hydrogen atom is removed; R.sup.3 represents an unsubstituted or substituted straight chain or branched chain alkyl group having from 1 to 12 carbon atoms, an unsubstituted or substituted aralkyl group having from 7 to 20 carbon atoms or an unsubstituted or substituted aryl group; and R.sup.4 and R.sup.
    Type: Grant
    Filed: December 17, 1981
    Date of Patent: August 2, 1983
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Masayoshi Nagata, Seiji Horie, Junji Nakano, Hideo Sato
  • Patent number: 4395473
    Abstract: An electrophotographic sensitive material is described having an electrophotographic sensitive layer containing a charge generating material and a charge transfer material, wherein said charge generating material comprises a barbituric acid derivative or thiobarbituric acid derivative represented by formula (I) or (II) ##STR1## wherein (i) X represents an oxygen atom or a sulfur atom(ii) R.sup.1 represents an alkoxy group, an aralkyl group or a substituted amino group represented by ##STR2## wherein R.sup.7 and R.sup.8 each represents an unsubstituted or substituted alkyl group or phenyl group, or R.sup.7 and R.sup.8 together represent a group forming a nitrogen atom-containing heterocyclic ring,(iii) R.sup.2 and R.sup.3 each represents a hydrogen atom, a halogen atom, an alkyl group, or a lower alkoxy group,(iv) R.sup.4 represents a hydrogen atom, an alkyl group, or an unsubstituted or substituted phenyl group,(v) R.sup.5 and R.sup.
    Type: Grant
    Filed: December 17, 1981
    Date of Patent: July 26, 1983
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Seiji Horie, Masayoshi Nagata, Junji Nakano, Hideo Sato
  • Patent number: 4394336
    Abstract: Production of tablets of sodium dichloroisocyanurate which dissolve gradually and smoothly in water without causing any undesirable collapse and swelling. The sodium dichloroisocyanurate with a regulated moisture content is tabletted and then the resulting tablets are thermally treated under specific conditions.
    Type: Grant
    Filed: July 20, 1981
    Date of Patent: July 19, 1983
    Assignee: Shikoku Kasei Kogyo Company Ltd.
    Inventors: Tadao Shimamura, Junji Nakano, Yasufumi Seo
  • Patent number: 3992391
    Abstract: 1,3-Disubstituted thiourea compounds represented by the following formula: ##EQU1## and their pharmaceutically acceptable acid addition salts which are useful especially for prevention and treatment of hypoxemia and further various diseases caused by hypoxia in local tissues, and process for the preparation of the present compounds set forth above and pharmaceutical composition containing the present compounds as an essential active ingredient.
    Type: Grant
    Filed: August 16, 1972
    Date of Patent: November 16, 1976
    Assignee: Dainippon Pharmaceutical Co., Ltd.
    Inventors: Hitoshi Uno, Junji Nakano, Toshiaki Kadokawa