Patents by Inventor Katsumi Aoki

Katsumi Aoki 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: 5833168
    Abstract: A reel feeding apparatus comprises a rotational shaft to be rotatably driven, plural pairs of reel supporting arms radially provided in an equally divided arrangement around the rotational shaft, each of the pairs of the supporting arms being arranged opposite to each other in an axial direction of the rotational shaft and movable in accordance with the rotation of the rotational shaft, and a reel supporting member rotatably provided at the reel supporting arm. Both sides of the web are supported by the reel supporting members of the opposing pair thereof.
    Type: Grant
    Filed: October 23, 1997
    Date of Patent: November 10, 1998
    Assignee: Kabushiki Kaisha Tokyo Kikai Seisakusho
    Inventors: Masanori Tahata, Katsumi Aoki
  • Patent number: 5633702
    Abstract: A transfer material carrying member is described which has at least two resin-containing layers. The relative dielectric constant (E1) of the surface layer and the relative dielectric constant (E2) of the layer(s) other than the surface layer show a ratio (E1/E2) satisfying the following expression of 0.02.ltoreq.(E1/E2).ltoreq.0.7. The carrying member shows a high transfer efficiency and is able to provide high quality images for a prolonged period of time.
    Type: Grant
    Filed: February 8, 1996
    Date of Patent: May 27, 1997
    Assignee: Canon Kabushiki Kaisha
    Inventors: Yasuko Hayashi, Katsumi Aoki
  • Patent number: 5629094
    Abstract: An image transfer medium carrier member, for carrying an image transfer medium such as a recording paper sheet, has a substrate and a surface layer. The surface layer containing a polyester resin and a cured resin. An image forming apparatus comprises: an electrophotographic photosensitive member; a charging device for electrostatically charging the electrophotographic photosensitive member; an image exposure device for exposing the electrophotographic photosensitive member to an image light so as to form an electrostatic latent image in the electrophotographic photosensitive member; a developing device for developing the electrostatic latent image with a toner so as to produce a toner image; and the above-mentioned image transfer medium carrier member.
    Type: Grant
    Filed: January 27, 1995
    Date of Patent: May 13, 1997
    Assignee: Canon Kabushiki Kaisha
    Inventors: Teigo Sakakibara, Kiyoshi Sakai, Yuichi Hashimoto, Katsumi Aoki
  • Patent number: 5422210
    Abstract: A electrophotographic photosensitive member and an electrophotographic apparatus, a device unit and a facsimile machine using an electrophotographic photosensitive member which comprises a conductive support, a photosensitive layer and a protective layer, the protective layer containing resin formed by hardening a light-setting type acrylic monomer, and the photosensitive layer containing at least one compound selected from the group consisting of (A), (B) and (C) below:(A) styryl compounds having a structure expressed by the following formula (1) and a melting point not higher than 135.degree. C.; ##STR1## wherein Ar.sup.1 and Ar.sup.2 are aromatic ring groups, Ar.sup.3 is a bivalent aromatic ring group or a bivalent heterocyclic group, R.sup.1 is an alkyl group or an aromatic ring group, R.sup.2 is a hydrogen atom, an alkyl group or an aromatic ring group, and n.sub.1 is 1 or 2, R.sup.1 and R.sup.2 possibly linking to form a ring when n.sub.
    Type: Grant
    Filed: October 29, 1992
    Date of Patent: June 6, 1995
    Assignee: Canon Kabushiki Kaisha
    Inventors: Akio Maruyama, Toshiro Kikuchi, Shoji Amamiya, Shin Nagahara, Katsumi Aoki
  • Patent number: 5418098
    Abstract: There is disclosed an electrophotographic photosensitive member comprising a conductive support and a photosensitive layer provided thereon, wherein the photosensitive layer contains a random copolymer having a structural unit represented by the following Formula (I): ##STR1## and a structural unit represented by the following Formula (II): ##STR2##
    Type: Grant
    Filed: June 25, 1992
    Date of Patent: May 23, 1995
    Assignee: Canon Kabushiki Kaisha
    Inventors: Shinya Mayama, Teigo Sakakibara, Noriko Ohtani, Katsumi Aoki, Noriyoshi Ogawa, Satoshi Kanayama
  • Patent number: 5418099
    Abstract: The present invention relates to an electrophotographic photosensitive member comprising an electroconductive support and a photosensitive layer formed thereon: the surface layer of the electrophotographic photosensitive member containing a first copolymer of a first construction unit represented by Formula (1) and a second construction unit represented by Formula (2), and a second copolymer of a third construction unit represented by Formula (3) and a fourth construction unit represented by Formula (4): ##STR1##
    Type: Grant
    Filed: May 18, 1993
    Date of Patent: May 23, 1995
    Assignee: Canon Kabushiki Kaisha
    Inventors: Shinya Mayama, Naoto Fujimura, Toshiyuki Yoshihara, Nobuyuki Hanami, Kiyoshi Sakai, Hideki Anayama, Junichi Kishi, Hideyuki Ainoya, Katsumi Aoki
  • Patent number: 5283142
    Abstract: The present invention provides an image-holding member which comprises an electroconductive support and a resin layer formed on the support, wherein the surface layer of the image-holding member contains a copolymer having the structure units represented by the formulas [I] and [II]: ##STR1## where A is a linear, branched or cyclic alkylidene group of 1 to 10 carbon atoms, an aryl-substituted alkylidene group, arylene-dialkylidene group, --O--, --S--, --CO--, --SO--, or --SO.sub.2 --; and R.sub.1, R.sub.2, R.sub.3, and R.sub.4 are respectively hydrogen, halogen, or an alkyl or alkenyl group of 1 to 4 carbons; ##STR2## where R.sub.5 is an alkylene or alkylidene group of 2 to 6 carbons; R.sub.6 and R.sub.7 are respectively an alkyl group of 1 to 3 carbons, a phenyl or substituted phenyl group; and n is an integer of from 1 to 200, and the copolymer containing the structure unit of the formula [II] in an amount of from 0.1 to 50% by weight Of the total weight of the copolymer.
    Type: Grant
    Filed: February 19, 1992
    Date of Patent: February 1, 1994
    Assignee: Canon Kabushiki Kaisha
    Inventors: Shinya Mayama, Naoto Fujimura, Kiyoshi Sakai, Noriko Ohtani, Katsumi Aoki, Noriyoshi Ogawa, Satoshi Kanayama
  • Patent number: 5254423
    Abstract: The present invention provides an electrophotographic photosensitive member comprising a conductive support and a photosensitive layer provided thereon, wherein the surface layer of the electrophotographic photosensitive member contains a polymer having a component unit represented by the following Formula (1) and a polymer having a component unit represented by the following Formula (2) and a component unit represented by the following Formula (3) in a certain proportion.
    Type: Grant
    Filed: October 16, 1992
    Date of Patent: October 19, 1993
    Assignee: Canon Kabushiki Kaisha
    Inventors: Shinya Mayama, Naoto Fujimura, Toshiyuki Yoshihara, Kiyoshi Sakai, Hideki Anayama, Hideyuki Ainoya, Katsumi Aoki
  • Patent number: 5215276
    Abstract: This invention relates to a remaining paper rewinding device for a paper feeding apparatus in a printing system. This device has a simple structure with a compact size, which can be easily assembled and whose maintenance can be easily carried out.The remaining paper rewinding device comprises a rotary shaft rotatively driven, a pair of Y-form paper roll support members which are oppositely arranged on the rotary shaft, a plurality of paper roll support stems each of which is pivotally arranged on the same circumference of the paper roll support member and in parallel to the rotary shaft so that the opposite support stems are aligned with each other, a plurality of drive units each of which is assembled on the paper roll support stem arranged on at least one side of the paper roll support members, and a drive power transmission unit which can be selectively engaged with the drive unit to transmit the rotating drive force from a power unit to the engaged drive unit.
    Type: Grant
    Filed: December 17, 1991
    Date of Patent: June 1, 1993
    Assignee: Kabushikigaisha Tokyo Kikai Seisakusho
    Inventors: Katsumi Aoki, Toshio Kansaku
  • Patent number: 4483022
    Abstract: Meshwork patterns are impressed upon the whole or a portion of a back leather member of a baseball glove to stiffen the leather and mesh-like apertures are formed in the stiffened leather to provide it with air-permeability.
    Type: Grant
    Filed: June 14, 1982
    Date of Patent: November 20, 1984
    Assignee: Mizuno Corporation
    Inventor: Katsumi Aoki
  • Patent number: 3958652
    Abstract: The present invention relates to an apparatus movably adhering to a wall and which may include a cleaning apparatus or coating apparatus affixed thereto for removing rust and paint from the vertical or inclined walls of large structures such as ships, oil-tanks or the like or for finishing bead welds thereon, and more particularly to an apparatus movable along a wall comprising four magnetic or vacuum adhering members which alternately adhere to the wall two by two as they are operated by remote-control to move the apparatus in the desired direction on the vertical or inclined wall.
    Type: Grant
    Filed: December 10, 1974
    Date of Patent: May 25, 1976
    Assignee: Sanko Co., Ltd.
    Inventors: Fukashi Urakami, Hiroyuki Yamashita, Katsumi Aoki