Patents by Inventor Hideaki Ueda

Hideaki Ueda 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: 5376487
    Abstract: The present invention provides a laminated-type photosensitive member having a photosensitive layer comprising;a charge generating layer anda charge transporting layer having a layer thickness of 25 .mu.m or more and containing an arylamine compound as a charge transporting material and an electron-accepting compound having an electron; affinity of 0.85-1.0 eVon an electrically substrate.
    Type: Grant
    Filed: October 5, 1993
    Date of Patent: December 27, 1994
    Assignee: Minolta Camera Kabushiki Kaisha
    Inventor: Hideaki Ueda
  • Patent number: 5376169
    Abstract: There is disclosed a recording solution for ink which is excellent in dispersibility, keeping quality, stability, fixing properties and able to effect printing without bleeding and opposite-side bleeding. The recording solution for ink jetting comprises at least:a nonaqueous solvent,a pigment,a resin andat least one of additives selected from the group consisting of alginates and borneols.
    Type: Grant
    Filed: April 15, 1993
    Date of Patent: December 27, 1994
    Assignee: Minolta Camera Kabushiki Kaisha
    Inventors: Hideo Hotomi, Hideaki Ueda
  • Patent number: 5338634
    Abstract: The present invention provides a new diamino compound represented by the following general formula [I] or [X] excellent in charge transporting properties. ##STR1## The present invention provides a photosensitive member and an electroluminescence device both of which comprise the diamino compound of the general formula [I] or [X] as a charge transporting material.
    Type: Grant
    Filed: July 30, 1992
    Date of Patent: August 16, 1994
    Assignee: Minolta Camera Kabushiki Kaisha
    Inventor: Hideaki Ueda
  • Patent number: 5330866
    Abstract: The present invention provides a new amino compound represented by the following general formula [I] excellent in charge transporting properties. ##STR1## The present invention provides a photosensitve member and an electroluminescence device both of which comprise the amino compound of the general formula [I] as a charge transporting material.
    Type: Grant
    Filed: February 14, 1992
    Date of Patent: July 19, 1994
    Assignee: Minolta Camera Kabushiki Kaisha
    Inventor: Hideaki Ueda
  • Patent number: 5314775
    Abstract: The present invention provides a new diamino compound represented by the following general formula [I]. ##STR1## The present invention provides also a photosensitive member and an electroluminescence device both of which comprise the diamino compound of the general formula [I] as a charge transporting material.
    Type: Grant
    Filed: August 10, 1992
    Date of Patent: May 24, 1994
    Assignee: Minolta Camera Kabushiki Kaisha
    Inventor: Hideaki Ueda
  • Patent number: 5293776
    Abstract: A sensor arrangement for an internal combustion engine so as to provide a signal when one cylinder of the engine is at a pre-determined position. The sensor arrangement includes an inductive sensor that is mounted directly in the cam cover of the engine and which cooperates directly with one of the cam lobes.
    Type: Grant
    Filed: February 18, 1992
    Date of Patent: March 15, 1994
    Assignee: Yamaha Hatsudoki Kabushiki Kaisha
    Inventors: Masaki Takegami, Hideaki Ueda
  • Patent number: 5294510
    Abstract: A photosensitive member is disclosed, which comprises a photosensitive layer containing a fluorescent bleaching agent comprising a coumarin compound represented by the formula (I): ##STR1##
    Type: Grant
    Filed: June 13, 1991
    Date of Patent: March 15, 1994
    Assignee: Minolta Camera Kabushiki Kaisha
    Inventors: Hideaki Ueda, Shigeaki Tokutake, Kimiyuki Ito, Yuki Shimada
  • Patent number: 5205244
    Abstract: An air intake system for a fuel injected type of motorcycle engine wherein the induction system for the engine is such that it along with the engine substantially encloses a fuel injector so as to silence any noise emanating from it.
    Type: Grant
    Filed: February 12, 1992
    Date of Patent: April 27, 1993
    Assignee: Yamaha Hatsudoki Kabushiki Kaisha
    Inventors: Kimiaki Nakamura, Hideaki Ueda
  • Patent number: 5186140
    Abstract: A number of embodiments of these valve intake systems for internal combustion engines served by a siamese type intake passage and configured to generate a swirl in the intake charge. A single fuel injector sprays fuel into a common inlet opening of the siamese intake passage and sprays more fuel toward the swirl side port so as to insure equal flow through all of the ports.
    Type: Grant
    Filed: February 18, 1992
    Date of Patent: February 16, 1993
    Assignee: Yamaha Hatsudoki Kabushiki Kaisha
    Inventors: Hideaki Ueda, Hiroshi Isumi
  • Patent number: 5183718
    Abstract: The present invention relates to a photosensitive member comprising a specified distyryl compound represented by the general formula [I]: ##STR1## in which Ar.sub.1 is a hydrogen atom, an alkyl group, an aralkyl group, an alkenyl group, an alkynyl group, an aryl group, or a heterocyclic group, wherein the aryl group and the heterocyclic group may have a substituent;Ar.sub.2 is an alkyl group, an aralkyl group or an aryl group, each of which may have a substituent;Ar.sub.3 and Ar.sub.4 are independently an alkyl group, an aryl group, an aralkyl group or a heterocyclic group, each of which may have a subsitutent;R.sub.2 is an alkyl group, an aralkyl group or an aryl group, each of which may have a substituent;R.sub.1 and R.sub.4 are a hydrogen atom, an alkyl group, an aryl group, an aralkyl group;R.sub.2 l and R.sub.3 are a hydrogen atom, an alkyl group, an alkoxy group or a halogen atom.
    Type: Grant
    Filed: June 18, 1992
    Date of Patent: February 2, 1993
    Assignee: Minolta Camera Kabushiki Kaisha
    Inventor: Hideaki Ueda
  • Patent number: 5166019
    Abstract: The present invention relates to a photosensitive member comprising a specified distyryl compound as a charge transporting material. The specified distyryl compound may be used in combination with a specified silicone oil and a specified butyrated phenol.
    Type: Grant
    Filed: December 17, 1991
    Date of Patent: November 24, 1992
    Assignee: Minolta Camera Kabushiki Kaisha
    Inventors: Hideaki Ueda, Shigeaki Tokutake, Keiichi Inagaki
  • Patent number: 5128228
    Abstract: This invention relates to a photosensitive member with a charge generating layer and a charge transporting layer laminated on an electrically conductive substrate, in which the charge transporting layer comprises a charge transporting material and an aniline derivative represented by the following general formula [I] below; ##STR1## in which R.sub.1 and R.sub.2 are respectively an alkyl group or an aralkyl group, each of which may have a substituent; R.sub.3 -R.sub.7 are respectively a hydrogen atom, an alkyl group, an alkoxy group, a hydroxy group, an aryl group, an aralkyl group or a halogen atom.
    Type: Grant
    Filed: October 4, 1990
    Date of Patent: July 7, 1992
    Assignee: Minolta Camera Kabushiki Kaisha
    Inventors: Hideaki Ueda, Mitsutoshi Sakamoto, Kimiyuki Ito, Yuki Shimada
  • Patent number: 5098811
    Abstract: This invention relates to a positively chargeable toner for developing electrostatic latent images comprising;a resin,a colorant, anda charge controlling agentwherein the charge controlling agent is a specified imidazole compound, and/or a homopolymer of a nitrogen-containing vinyl monomer or a copolymer thereof with styrene, and the resin may be a polyester resin or suspension polymerized polymer, which is unsuitable for positive chargeability in nature.
    Type: Grant
    Filed: September 22, 1989
    Date of Patent: March 24, 1992
    Assignee: Minolta Camera Kabushiki Kaisha
    Inventors: Masahiro Anno, Hideaki Ueda
  • Patent number: 5077164
    Abstract: The present invention relates to a photosensitive member with a photosensitive layer on or over an electrically conductive substrate, in which the photosensitive layer comprises at least one of azo pigments selected from the group consisting of azo pigments represented by the following general formulas [I], [II] and [III]. ##STR1## in which Z.sub.1 is a residual group of a condensed ring excluding the benzene ring and the carbonyl group in the formula [I]; Z.sub.2 is a residual group of a condensed ring excluding the naphthalene ring and the carbonyl group in the formula [II]; Z.sub.1 and Z.sub.2 may have a substituent respectively; R.sub.1, R.sub.2, R.sub.3 and R.sub.4 represent independently a hydrogen atom, an alkyl group, an alkoxy group, a halogen atom, a hydroxy group or a nitro group; Ar.sub.1, Ar.sub.2, Ar.sub.3, Ar.sub.4 and Ar.sub.5 represent independently an arylene group which may have a substituent; Ar.sub.
    Type: Grant
    Filed: June 20, 1990
    Date of Patent: December 31, 1991
    Assignee: Minolta Camera Kabushiki Kaisha
    Inventors: Hideaki Ueda, Takamasa Ueda, Masakazu Takata
  • Patent number: 5077162
    Abstract: The present invention relates to a photosensitive member containing a specific styryl compound for a charge transporting material, which is improved in photographic properties such as photosensitivity and repeating properties. The styryl compound represented by the following formula [X]; ##STR1## in which R.sub.11, R.sub.12, R.sub.16 and R.sub.17 represent independently an alkyl group, an aralkyl group or an aryl group, each of which may have a substituent; R.sub.13, R.sub.15 and R.sub.18 represent independently a hydrogen atom, an alkyl group, an alkoxy group or a halogen atom; R.sub.14 and R.sub.19 represent independently an alkyl group or an alkoxy group; l or n is an integer of 1, 2 or 3; m is an integer of 0, 1 or 2, is particularly excellent in the improvement of the sensitivity.
    Type: Grant
    Filed: June 7, 1990
    Date of Patent: December 31, 1991
    Assignee: Minolta Camera Kabushiki Kaisha
    Inventor: Hideaki Ueda
  • Patent number: 5034300
    Abstract: This invention relates to charging means which contacts with a toner to charge the toner and being installed in a developing machine for developing electrostatic latent images by a dry developer; the charging means comprises a specified imidazole compound selected from the group consisting of an imidazole metal complex, an imidazole metal compound and an imidazole derivative.
    Type: Grant
    Filed: December 27, 1989
    Date of Patent: July 23, 1991
    Assignee: Minolta Camera Kabushiki Kaisha
    Inventors: Masahiro Anno, Hideaki Ueda
  • Patent number: 4988596
    Abstract: The present invention relates to a photosensitive member comprisingan electrically conductive substrate, anda photosensitive layer formed on or over the substrate and including a hydrazone compound represented by the general formula (I); ##STR1##
    Type: Grant
    Filed: February 9, 1990
    Date of Patent: January 29, 1991
    Assignee: Minolta Camera Kabushiki Kaisha
    Inventor: Hideaki Ueda
  • Patent number: 4983480
    Abstract: The present invention relates to a photosensitive member containing a specific azo compound for a charge generating material represented by the following general formula (I); ##STR1## wherein A represents an aromatic hydrocarbon group or a heterocyclic group, which may be bonded through a bonding group; R.sub.1 and R.sub.2 are independently selected from the group consisting of hydrogen, a halogen atom, an alkyl group which may have a substitutent, an aralkyl group which may have a substitutent, an aryl group which may have a substituent, a condensed poly-cyclic group which may have a substitutent and a hetero-cyclic group which may have a substitutent; R.sub.1 and R.sub.2 may combinedly form a cyclic ring; and n represents an integer of 1, 2, 3, or 4, which is improved in photosensitive properties, in particular, sensitivity.
    Type: Grant
    Filed: December 28, 1988
    Date of Patent: January 8, 1991
    Assignee: Minolta Camera Kabushiki Kaisha
    Inventor: Hideaki Ueda
  • Patent number: 4971874
    Abstract: The present invention relates to a photosensitive member containing a specific styryl compound for a charge transporting material, which is improved in photographic propertied such as photosensitivity and repeating properties.
    Type: Grant
    Filed: December 20, 1989
    Date of Patent: November 20, 1990
    Assignee: Minolta camera Kabushiki Kaisha
    Inventor: Hideaki Ueda
  • Patent number: 4956255
    Abstract: The present invention relates to a photosensitive member containing a specific azo compound represented by the following general formula [I]; ##STR1## wherein A is a bivalent group of a condensed poly-cyclic ring which may have a substituent, a pyridine which may have a substituent, a diazine which may have a substituent, a quinoline which may have a substituent, or a benzoazine which may have a substituent; Cp is a residual group of a coupler, which is improved in photosensitive porperties, in particular, sensitivity.
    Type: Grant
    Filed: February 22, 1989
    Date of Patent: September 11, 1990
    Assignee: Minolta Camera Kabushiki Kaisha
    Inventor: Hideaki Ueda