Patents by Inventor Yasuo Okamoto

Yasuo Okamoto 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).

  • Publication number: 20060243236
    Abstract: A number of embodiments of double overhead cam shaft V type engines wherein the drive arrangement for the camshafts permits not only a compact design but also one in which the timing loadings are decreased to improve engine life, performance and reduced servicing.
    Type: Application
    Filed: April 26, 2006
    Publication date: November 2, 2006
    Inventor: Yasuo Okamoto
  • Patent number: 7060370
    Abstract: An organic EL element comprising an organic thin film layer containing a light-emitting layer between an positive electrode and a negative electrode, in which a layer in the organic thin film layer comprises 1,3,6,8-tetraphenylpyrene compound expressed by the following structural formula (1), and a carbazole derivative expressed by the following structural formula (2), in the structural formula (1), R1–R4 may be identical or different, and may be a hydrogen atom or a substituent group,
    Type: Grant
    Filed: October 24, 2002
    Date of Patent: June 13, 2006
    Assignee: Fuji Photo Film., Ltd.
    Inventors: Masaru Kinoshita, Wataru Sotoyama, Jun Kodama, Yasuo Okamoto
  • Publication number: 20060027291
    Abstract: A first aluminum alloy of the present invention comprises Mg: 0.3-6 mass %, Si: 0.3-10 mass %, Zn: 0.05-1 mass %, Sr: 0.001-0.3 mass % and the balance being Al and impurities. A second aluminum alloy further contains one or more selective additional elements selected from the group consisting of Cu, Fe, Mn, Cr, Zr, Ti, Na and Ca. Furthermore, a third aluminum alloy comprises Mg: 0.1-6 mass %, Si: 0.3-12.5 mass %, Cu: 0.01 mass % or more but less than 1 mass %, Zn: 0.01-3 mass %, Sr:0.001-0.5 mass % and the balance being Al and impurities. Furthermore, a fourth aluminum alloy further includes one or more optional additional elements selected from the group consisting of Ti, B, C, Fe, Cr, Mn, Zr, V, Sc, Ni, Na, Sb, Ca, Sn, Bi and In.
    Type: Application
    Filed: September 28, 2005
    Publication date: February 9, 2006
    Applicant: SHOWA DENKO K.K.
    Inventors: Hideaki Matsuoka, Masaki Yamanaka, Hiroki Yoshioka, Yasuo Okamoto, Masakatsu Kitamura
  • Publication number: 20050109429
    Abstract: An aluminum alloy containing 5 to 12% (mass %; similarly applicable hereinafter) of Si, 0.1 to 1% of Fe, less than 1% of Cu and 0.3 to 1.5% of Mg and having the valance formed of Al and impurities is cast by a continuous casting process. When the cast mass consequently obtained is homogenized, then extruded and/or forged and/or machined and subjected to an anodizing treatment, the resultant formed article is endowed with excellent wear resistance because the anodized coat formed thereon in a thickness of 30 ?m or more with hardness Hv of 400 or more allows the presence therein of eutectic Si particles having particle diameters in the range of 0.4 to 5.5 ?m.
    Type: Application
    Filed: April 26, 2004
    Publication date: May 26, 2005
    Inventors: Yasuo Okamoto, Yoshio Uminuma
  • Patent number: 6880398
    Abstract: A fuel level detection device detects the level of fuel in the fuel tank. The fuel level detection device comprises a body including at least one mounting station and a fuel level detection unit. The fuel level detection unit includes a base and a float mounted relative to the base so as to have varying position relative to the base depending on the level of fuel in the fuel tank. The fuel level detection unit further contains a link coupling the float to the base and a sensor producing a signal indicative of the position of the float within the fuel tank. The fuel level detection unit is capable of being disposed at more than one position on the body.
    Type: Grant
    Filed: October 18, 2002
    Date of Patent: April 19, 2005
    Assignee: Yamaha Hatsudoki Kabushiki Kaisha
    Inventor: Yasuo Okamoto
  • Patent number: 6846615
    Abstract: The present invention provides a method for making a lithographic printing plate, which comprises imagewise exposing a presensitized plate having a photopolymerizable layer on a substrate having a hydrophilic surface by scanning the plate with laser light having a wavelength of 450 nm or shorter, developing the exposed plate with a developer and further exposing the whole surface of the developed plate to light having a wavelength of 450 nm or shorter. The method provides a lithographic printing plate by which a fog of reflection that is easily occurred in an inner drum-type exposing device during a direct process can be reduced to provide a clear image as well as a high printing durability.
    Type: Grant
    Filed: July 23, 2002
    Date of Patent: January 25, 2005
    Assignee: Fuji Photo Film Co., Ltd.
    Inventor: Yasuo Okamoto
  • Patent number: 6727044
    Abstract: A method for producing a lithographic printing plate is disclosed, comprising performing the plate-making by scan exposing a lithographic printing original plate comprising a hydrophilic support having thereon a photosensitive layer containing i) at least one polyurethane resin binder, ii) at least one compound having an addition polymerizable ethylenically unsaturated bond, and iii) at least one photopolymerization initiation system. Also disclosed are a photosensitive composition for use in the photosensitive layer of the lithographic printing original plate.
    Type: Grant
    Filed: April 9, 1999
    Date of Patent: April 27, 2004
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Kazuhiro Fujimaki, Yasuo Okamoto, Tatsuji Higashi, Tadahiro Sorori
  • Patent number: 6638687
    Abstract: A method for preparing a lithographic printing plate involving the steps of subjecting, to imagewise exposure, a presensitized plate for use in making a lithographic printing plate comprising an aluminum substrate provided thereon with a light-sensitive layer formed from a photopolymerizable light-sensitive composition, which comprises a compound having an ethylenically unsaturated double bond, a photopolymerization initiator and a polyurethane resin binder and then developing the imagewise exposed plate with a developer containing an inorganic alkaline agent and a nonionic surfactant, carrying a polyoxyalkylene ether group, having a pH value ranging from 10.0 to 12.5 and an electrical conductivity ranging from 3 to 30 mS/cm.
    Type: Grant
    Filed: December 6, 2001
    Date of Patent: October 28, 2003
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Tatsuji Higashi, Yasuo Okamoto
  • Publication number: 20030157365
    Abstract: An organic EL element comprising an organic thin film layer containing a light-emitting layer between an positive electrode and a negative electrode, in which a layer in the organic thin film layer comprises 1,3,6,8-tetraphenylpyrene compound expressed by the following structural formula (1), and a carbazole derivative expressed by the following structural formula (2), 1
    Type: Application
    Filed: October 24, 2002
    Publication date: August 21, 2003
    Applicant: FUJITSU LIMITED
    Inventors: Masaru Kinoshita, Wataru Sotoyama, Jun Kodama, Yasuo Okamoto
  • Patent number: 6601572
    Abstract: Several embodiments of fittings or couplings for the crankcase ventilating gas return to the combustion chambers through the induction system. They each provide good insulation so as to avoid the likelihood that water condensation in the path can freeze and restrict the ventilating flow.
    Type: Grant
    Filed: October 2, 2001
    Date of Patent: August 5, 2003
    Assignee: Yamaha Hatsudoki Kabushiki Kaisha
    Inventor: Yasuo Okamoto
  • Publication number: 20030143102
    Abstract: A first aluminum alloy of the present invention comprises Mg: 0.3-6 mass %, Si: 0.3-10 mass %, Zn: 0.05-1 mass %, Sr: 0.001-0.3 mass % and the balance being Al and impurities. A second aluminum alloy further contains one or more selective additional elements selected from the group consisting of Cu, Fe, Mn, Cr, Zr, Ti, Na and Ca. Furthermore, a third aluminum alloy comprises Mg: 0.1-6 mass %, Si: 0.3-12.5 mass %, Cu: 0.01 mass % or more but less than 1 mass %, Zn: 0.01-3 mass %, Sr: 0.001-0.5 mass % and the balance being Al and impurities. Furthermore, a fourth aluminum alloy further includes one or more optional additional elements selected from the group consisting of Ti, B, C, Fe, Cr, Mn, Zr, V, Sc, Ni, Na, Sb, Ca, Sn, Bi and In.
    Type: Application
    Filed: July 25, 2002
    Publication date: July 31, 2003
    Applicant: SHOWA DENKO K.K.
    Inventors: Hideaki Matsuoka, Masaki Yamanaka, Hiroki Yoshioka, Yasuo Okamoto, Masakatsu Kitamura
  • Publication number: 20030118945
    Abstract: The present invention provides a method for making a lithographic printing plate, which comprises imagewise exposing a presensitized plate having a photopolymerizable layer on a substrate having a hydrophilic surface by scanning the plate with laser light having a wavelength of 450 nm or shorter, developing the exposed plate with a developer and further exposing the whole surface of the developed plate to light having a wavelength of 450 nm or shorter. The method provides a lithographic printing plate by which a fog of reflection that is easily occurred in an inner drum-type exposing device during a direct process can be reduced to provide a clear image as well as a high printing durability.
    Type: Application
    Filed: July 23, 2002
    Publication date: June 26, 2003
    Inventor: Yasuo Okamoto
  • Publication number: 20030074965
    Abstract: A fuel level detection device detects the level of fuel in the fuel tank. The fuel level detection device comprises a body including at least one mounting station and a fuel level detection unit. The fuel level detection unit includes a base and a float mounted relative to the base so as to have varying position relative to the base depending on the level of fuel in the fuel tank. The fuel level detection unit further contains a link coupling the float to the base and a sensor producing a signal indicative of the position of the float within the fuel tank. The fuel level detection unit is capable of being disposed at more than one position on the body.
    Type: Application
    Filed: October 18, 2002
    Publication date: April 24, 2003
    Inventor: Yasuo Okamoto
  • Publication number: 20030049564
    Abstract: [Object]
    Type: Application
    Filed: December 6, 2001
    Publication date: March 13, 2003
    Inventors: Tatsuji Higashi, Yasuo Okamoto
  • Publication number: 20020134361
    Abstract: Several embodiments of fittings or couplings for the crankcase ventilating gas return to the combustion chambers through the induction system. They each provide good insulation so as to avoid the likelihood that water condensation in the path can freeze and restrict the ventilating flow.
    Type: Application
    Filed: October 2, 2001
    Publication date: September 26, 2002
    Inventor: Yasuo Okamoto
  • Patent number: 6153660
    Abstract: A photopolymerizable composition is disclosed, comprising at least A) a compound having an addition-polymerizable ethylenically unsaturated bond, B) a metallocene compound photopolymerization initiator and C) a polymer binder having an amido group on the side chain thereof and being substantially soluble in an alkali water.
    Type: Grant
    Filed: December 15, 1998
    Date of Patent: November 28, 2000
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Kazuhiro Fujimaki, Yasuo Okamoto, Kazuo Fujita, Tadahiro Sorori
  • Patent number: 6140384
    Abstract: A photopolymerizable composition comprising i) an addition polymerizable compound having an ethylenically unsaturated double bond, ii) a sensitizing dye represented by the following formula (I) and iii) a titanocene compound: ##STR1## wherein A.sup.1 and A.sup.2 each represents a carbon atom or a hetero atom, Q.sup.1 represents a nonmetallic atom group necessary for forming a heterocyclic ring together with A.sup.1, A.sup.2 and the carbon atoms adjacent thereto, R.sup.1 and R.sup.2 each represents a hydrogen atom, an alkyl group or an aryl group and R.sup.1 and R.sup.2 may be combined with each other to form a ring, X.sup.1 and X.sup.2 each represents a cyano group or a substituted carbonyl group and X.sup.2 and X.sup.2 may be combined with each other to form a ring, and n represents 0, 1 or 2.
    Type: Grant
    Filed: October 1, 1997
    Date of Patent: October 31, 2000
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Tadahiro Sorori, Yasuo Okamoto
  • Patent number: 5939465
    Abstract: A photopolymerizable composition comprises (i) a compound represented by formula (I): ##STR1## wherein R.sup.1 and R.sup.2 each independently represents a hydrogen atom, a cyano group, a substituted carbonyl group, a substituted or unsubstituted, alkyl group, aryl group, alkenyl group, or alkynyl group; R.sup.3, R.sup.4 and R.sup.5 each independently represents a substituted or unsubstituted, alkyl group, aryl group, alkenyl group, or alkynyl group; Z represents a nonmetallic atom group necessary for forming a heterocyclic nucleus containing an N atom; n represents an integer of 0, 1 or 2; and G.sup.1 and G.sup.2 each independently represents a hydrogen atom, a cyano group, a substituted, carbonyl group, oxy group, amino group, thio group, sulfonyl group, sulfinyl group or an atomic group represented by formula (II) described in the specification, provided that G.sup.1 and G.sup.
    Type: Grant
    Filed: July 30, 1997
    Date of Patent: August 17, 1999
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Kazuto Kunita, Yasuo Okamoto
  • Patent number: 5801212
    Abstract: A photopolymerizable composition comprising an addition-polymerizable compound having at least one ethylenic unsaturated double bond, a specific sensitizing dye represented by the following formula (I), and a titanocene compound: ##STR1## The substituents in formula (I) are defined in the specification.
    Type: Grant
    Filed: June 4, 1996
    Date of Patent: September 1, 1998
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Yasuo Okamoto, Shunichi Kondo
  • Patent number: 5776996
    Abstract: A photopolymerizable composition is disclosed, comprising i) an addition polymerizable compound having an ethylenically unsaturated double bond, ii) a sensitizing dye represented by the following formula (I) and iii) a titanocene compound: ##STR1## wherein R.sup.1, R.sup.2, R.sup.7 and R.sup.8 each represents a hydrogen atom, an alkyl group, an aryl group or an alkenyl group, R.sup.3, R.sup.4, R.sup.5 and R.sup.6 each represents a hydrogen atom, a halogen atom, an alkyl group, an aryl group, an alkoxy group or an alkoxycarbonyl group, R.sup.1 and R.sup.2 may be combined with each other to form a ring together with the nitrogen atom or R.sup.1 and R.sup.5 or R.sup.2 and R.sup.3 may be combined with each other to form a ring together with the carbon atoms and the nitrogen atom, R.sup.3 and R.sup.4 or R.sup.5 and R.sup.6 may be combined with each other to form a ring together with the two carbon atoms, X.sup.1 represents an oxygen atom or a sulfur atom, and n represents 0, 1 or 2.
    Type: Grant
    Filed: February 19, 1997
    Date of Patent: July 7, 1998
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Yasuo Okamoto, Tadahiro Sorori