Patents by Inventor Toshiaki Harada

Toshiaki Harada 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: 5093675
    Abstract: A hand-held recording apparatus for image recording on a recording medium by manual movement comprises a main body, a thermal head provided in the main body and having plural heat-generating elements for image recording on the recording medium, an ink sheet positioned feedable to a recording position by the thermal head and bearing ink which is transferred onto the recording medium in response to the heat generation of the thermal head, a first elastic member for biasing the thermal head to the recording medium, and a second elastic member for biasing the main body having the thermal head therein to the recording medium.The elastic force of the second elastic member is selected larger than that of the first elastic member.
    Type: Grant
    Filed: August 31, 1990
    Date of Patent: March 3, 1992
    Assignee: Canon Kabushiki Kaisha
    Inventors: Noboru Koumura, Toshiaki Harada, Ryozo Yanagisawa, Hiroshi Tanioka
  • Patent number: 5068123
    Abstract: A process for producing a recording medium comprising a substrate and a plurality of image forming elements disposed thereon, which comprises the steps of: applying a binder onto the substrate to form thereon a binder layer; disposing the image forming elements on the binder layer; and simultaneously applying a vibration and a pressure to the image forming elements disposed on the binder layer sufficient to bond the image forming elements to the substrate as a substantially monoparticle layer.
    Type: Grant
    Filed: August 29, 1989
    Date of Patent: November 26, 1991
    Assignee: Canon Kabushiki Kaisha
    Inventors: Hiroshi Goto, Toshiaki Harada, Noriyoshi Ishikawa
  • Patent number: 5063451
    Abstract: A recording apparatus for effecting recording on a recording medium is portable and capable of bearing against the recording medium. The recording apparatus comprises recording means for effecting recording on the recording medium, and control means for controlling the ON and OFF of recording by the recording means.
    Type: Grant
    Filed: July 6, 1989
    Date of Patent: November 5, 1991
    Assignee: Canon Kabushiki Kaisha
    Inventors: Ryozo Yanagisawa, Hiroshi Tanioka, Kiyoshi Kaneko, Toshiaki Harada, Kikuo Yoshikawa, Noboru Koumura, Toshiharu Inui
  • Patent number: 4978968
    Abstract: An image recording apparatus for recording an image on a recording medium by using a transfer recording medium having a transfer recording layer whose transfer characteristics change on application of a plurality of kinds of energy thereto. The apparatus comprises: a conveyor for conveying the transfer recording medium; a recording section disposed along an advancing route of the transfer recording medium conveyed by the conveyor and having energy applicators for selectively applying the plurality of kinds of energy to the transfer recording medium; a transfer section for transferring an image formed on the transfer recording medium in the recording section onto the recording medium; and a contacting member disposed between the recording section and the transfer section in such a manner as to be brought into contact with the transfer recording medium. Members constituting the advancing route of the transfer recording medium are formed separably from a main body of the unit.
    Type: Grant
    Filed: June 19, 1989
    Date of Patent: December 18, 1990
    Assignee: Canon Kabushiki Kaisha
    Inventors: Noriyoshi Ishikawa, Toshiharu Inui, Yasuyuki Tamura, Toshiaki Harada
  • Patent number: 4963895
    Abstract: An illumination apparatus adapted for illuminating a subject with light comprises a plurality of fluorescent substances each having a different spectral characteristic, a drive device for repetitively locating the fluorescent substances at a predetermined position and a light source for illuminating the fluorescent substances. The illumination apparatus further includes a slit for focusing light on a subject to be illuminated. If the illumination apparatus is incorporated as a transfer section into a recording system such as a facsimile and a copying machine, since the fluorescent substances are alternately positioned at a predetermined location to illuminate a recording sheet, it is possible to obtain a clearly recorded image with high precision and at high speed.
    Type: Grant
    Filed: January 19, 1989
    Date of Patent: October 16, 1990
    Assignee: Canon Kabushiki Kaisha
    Inventors: Toshiaki Harada, Tadashi Yamamoto, Masanori Takenouchi
  • Patent number: 4899175
    Abstract: An illumination apparatus adapted for illuminating a subject with light comprises a plurality of fluorescent substances each having a different spectral characteristic, a drive device for repetitively locating the fluorescent substances at a predetermined position and a light source for illuminating the fluorescent substances. The illumination apparatus further includes a slit for focusing light on a subject to be illuminated. When the illumination apparatus is incorporated as a transfer section into a recording system such as a facsimile and a copying machine, the fluorescent substances are alternatively positioned at a predetermined location to illuminate a recording sheet, thus making it possible to obtain a clearly recorded image with high precision and at high speed.
    Type: Grant
    Filed: November 5, 1987
    Date of Patent: February 6, 1990
    Assignee: Canon Kabushiki Kaisha
    Inventors: Toshiaki Harada, Tadashi Yamamoto, Masanori Takenouchi
  • Patent number: 4894666
    Abstract: This specification discloses an image recording apparatus having conveying means for conveying a transfer recording medium having a transfer recording layer whose transfer characteristic is varied by first energy and second energy being imparted thereto, a recording unit having first energy imparting means for imparting the first energy to the transfer recording medium and second energy imparting means for imparting the second energy to the transfer recording medium provided along the conveyance route of the transfer recording medium conveyed by the conveying means, a transfer unit for transferring an image formed on the transfer recording medium in the recording unit to a recording medium, and applying means for applying predetermined heat energy and a shearing force to the recording medium to which the image has been transferred in the transfer unit.
    Type: Grant
    Filed: October 19, 1988
    Date of Patent: January 16, 1990
    Assignee: Canon Kabushiki Kaisha
    Inventors: Noriyoshi Ishikawa, Toshiaki Harada, Toshiharu Inui, Tadashi Yamamoto, Kazuhiro Nakajima, Masanori Takenouchi
  • Patent number: 4888635
    Abstract: An illuminating apparatus for illuminating objects with lights has a rotary member having a plurality of types of fluorescent materials, a driving device for driving the rotary member, a lighting device for causing the fluorescent materials to emit lights, and a plurality of light paths for guiding the lights from the fluorescent materials to a plurality of objects. A recording apparatus making use of the illuminating apparatus has an image reading device capable of reading an image by device of an illuminating light, an image forming device capable of forming an image on the recording member by device of an illuminating light, a first illuminating light path through which the light emitted from one of the fluorescent materials is guided to the image reading device, a second illuminating light path through which the light emitted from one of the fluorescent materials is guided to the image forming device.
    Type: Grant
    Filed: February 11, 1988
    Date of Patent: December 19, 1989
    Assignee: Canon Kabushiki Kaisha
    Inventors: Toshiaki Harada, Tadashi Yamamoto
  • Patent number: 4668782
    Abstract: An anhydrous crystalline, or crystalline hemihydrate, monohydrate or trihydrate of cephalosporin derivative of (6R,7R)-7-[(Z)-2-(2-aminothiazole-4-yl)-2-methoxy-iminoacetoamido]-3(1-qui nuclidiniummethyl)-3-cephem-4-carboxylate. These crystalline materials can maintain outstanding stability for a very long period of time and afford excellent practical uses as pharmaceutical compounds.
    Type: Grant
    Filed: December 17, 1985
    Date of Patent: May 26, 1987
    Assignee: Teijin Limited
    Inventors: Yataro Ichikawa, Eishin Yoshisato, Toshiaki Harada, Hiroshi Imai, Yoji Suzuki
  • Patent number: 4452720
    Abstract: A fluorescent composition consisting essentially of(1) a polymer having a solubility parameter of at least about 9 such as polyethylene terephthalate etc. and(2) one or more organic fluorescent substances, at least one of said fluorescent substances showing difficult solubility such as anthraquinonic pigments, said fluorescent composition being characterized by the fact that when it is formed into a film having a thickness of about 1 mm, the film has a non-transmission index PTi (%), as defined by the following equation, of not more than 10,PTi=PAs-PAbwherein PAs is the percent light absorption at 800 nm of said film of the fluorescent composition, and PAb is the percent light absorption at 800 nm of a film having a thickness of about 1 mm of the polymer in the fluorescent composition.
    Type: Grant
    Filed: June 3, 1981
    Date of Patent: June 5, 1984
    Assignee: Teijin Limited
    Inventors: Toshiaki Harada, Toshiyuki Hiramatsu, Teizo Yamaji
  • Patent number: 4244859
    Abstract: A novel composition comprising 100 parts by weight of an aromatic polyester, 5 to 150 parts by weight of powdery feldspar and optionally 5 to 120 parts by weight of a plate-like inorganic filler such as glass flakes and/or 1 to 100 parts by weight of a rubbery elastomer such as acrylic rubber. Up to a half of the powdery feldspar may be replaced by another pulverulent inorganic filler such as talc. The composition is useful as engineering plastics because it gives molded articles having high impact strength and heat distortion temperatures and reduced warping.
    Type: Grant
    Filed: November 13, 1978
    Date of Patent: January 13, 1981
    Assignee: Teijin Limited
    Inventors: Kiyoshi Sugie, Shizuka Kurisu, Shingo Emi, Shizuo Azuma, Toshiaki Harada, Shoji Kawase
  • Patent number: 4167506
    Abstract: A group of novel polynuclear heterocyclic compounds having a diazaphenalene skeleton. These compounds assume orange to reddish violet colors according to the types of substituents on the diazaphenalene skeleton, and have excellent thermal stability and weatherability and good dispersibility in polymeric materials. They are useful as orange to reddish violet pigments, especially for coloring polymeric materials.
    Type: Grant
    Filed: September 13, 1977
    Date of Patent: September 11, 1979
    Assignee: Teijin Limited
    Inventors: Keizo Shimada, Toshiaki Harada, Masahiro Koga, Shizuo Nagahama, Hiroyoshi Minematsu, Hidetsugu Yoshida
  • Patent number: 4150025
    Abstract: A compound of the formula ##STR1## wherein R.sub.1 represents a hydrogen atom or a lower alkyl group; R.sub.2 and R.sub.5, independently from each other, represent a hydrogen atom, a halogen atom or a lower alkyl group; one of R.sub.3 and R.sub.4 represents an imido group of the formula ##STR2## in which Y represents a 1,2-phenylene, 1,2-naphthylene, 2,3-naphthylene or 1,8-naphtylene group optionally containing at least one substituent, and the other represents a hydrogen atom, a halogen atom or a lower alkyl group; R.sub.6 represents a hydrogen atom, a halogen atom, a lower alkyl group or a lower alkoxy group; and X represents a halogen atom; with the proviso that when R.sub.3 represents the imido group, R.sub.2 represents a hydrogen or halogen atom. This compound can be prepared by reacting a corresponding quinaldine derivative with a tetrahalophthalic acid or a reactive derivative thereof. A yellow organic pigment comprising this compound as a coloring ingredient is useful for coloring polymeric materials.
    Type: Grant
    Filed: February 10, 1977
    Date of Patent: April 17, 1979
    Assignee: Teijin Limited
    Inventors: Keizo Shimada, Toshiaki Harada, Masahiro Koga
  • Patent number: 4077960
    Abstract: A compound of the formula ##STR1## wherein Y represents an arylene group optionally substituted by a halogen atom, an arylsulfonyl group or an acyl group, Z represents a 1,2-naphthylene, 2,3-naphthylene, 1,8-naphthylene or 2, 2'-biphenylene group optionally substituted by a halogen atom, and either one or both of the rings A and B optionally contain a substituent. This compound can be obtained by reacting a quinoline derivative with an aryldicarboxylic acid or its reactive derivative, and if desired, halogenating the resulting product. A yellow organic pigment comprising this compound as a coloring ingredient is useful for coloring polymeric materials.
    Type: Grant
    Filed: June 8, 1976
    Date of Patent: March 7, 1978
    Assignee: Teijin Limited
    Inventors: Keizo Shimada, Toshiaki Harada, Masahiro Koga
  • Patent number: 4067870
    Abstract: A compound of the following formula ##STR1## wherein R represents an alkyl group containing 1 to 4 carbon atoms or a phenyl group; X.sub.1 represents a chlorine or bromine atom; Y represents the group of the formula ##STR2## WHEREIN X.sub.2 and X.sub.3 each represent a chlorine or bromine atom, and n is an integer of 2 to 4; and ring A may be substituted by an alkyl group containing 1 to 4 carbon atoms and or a halogen atom.The compound of formula (I) can be easily produced by reacting a quinoline derivative of the formula ##STR3## wherein R, X.sub.1 and the ring A are the same as defined above, with an aryldicarboxylic acid or its reactive derivatives.The compounds of formula (I) are useful as yellow organic pigments.
    Type: Grant
    Filed: August 26, 1976
    Date of Patent: January 10, 1978
    Assignee: Teijin Limited
    Inventors: Keizo Shimada, Toshiaki Harada, Masahiro Koga, Shizuo Nagahama
  • Patent number: 3966830
    Abstract: A process for nitrating halogenated benzene derivatives which comprises reacting in the vapor phase a halogenated benzene derivative with at least one member selected from the group consisting of nitric acid, nitrogen dioxide and nitrogen pentoxide in the presence of at least one solid inorganic oxide selected from the group consisting of silica, alumina and silica-alumina.
    Type: Grant
    Filed: November 12, 1974
    Date of Patent: June 29, 1976
    Assignee: Teijin Limited
    Inventors: Keizo Shimada, Takeo Nishikawa, Toshiaki Harada, Shizuo Nagahama
  • Patent number: 3936509
    Abstract: A process for separating dimethyl naphthalenes having a component comprising 2,6-dimethyl naphthalene in the form of complexes with a complex-forming compound, which comprises contacting a dimethyl naphthalene isomer mixture comprising at least 2,6-dimethyl naphthalene or a hydrocarbon mixture containing said dimethyl naphthalene isomer mixture with a complex-forming compound selected from the group consisting of nitro compounds of 2,6-naphthalene dicarboxylic acid, trimellitic anhydride and 2-chloro-5-nitrobenzoic acid, thereby to form a mixture of complexes of the dimethyl naphthalenes with said complex-forming compound having a main component comprising a complex of 2,6-dimethyl naphthalene with the complex-forming compound, and separating the complexes in the solid state from the reaction mixture.
    Type: Grant
    Filed: November 4, 1974
    Date of Patent: February 3, 1976
    Assignee: Teijin Limited
    Inventors: Shizuo Nagahama, Keizo Shimada, Takeo Nishikawa, Toshiaki Harada