Patents by Inventor Kyoichi A. Watanabe

Kyoichi A. Watanabe 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: 7008720
    Abstract: A battery includes a plurality of flat type batteries and a connector member that electrically connect the plurality of flat type batteries to one another. Each of the plurality of flat type batteries is provided with an outer sheath having a composite laminate film, an electric power generating component, which includes a positive electrode plate, a separator and a negative electrode plate and is accommodated in the outer sheath by compelling at least a part of a circumference of the outer sheath to be joined by thermally welded portions, a positive-electrode terminal lead conductive with the positive electrode plate and held between the thermally welded portions, and a negative-electrode terminal lead conductive with the negative electrode plate and held between the thermally welded portions. At least one of the positive-electrode terminal lead and the negative-electrode terminal lead has a surface covering layer made of a metal different from that of its terminal mother material.
    Type: Grant
    Filed: March 11, 2003
    Date of Patent: March 7, 2006
    Assignee: Nissan Motor Co., Ltd.
    Inventors: Osamu Shimamura, Hideaki Horie, Kyoichi Watanabe, Takaaki Abe, Takanori Itou, Hiroshi Sugawara, Yuuji Tanjou
  • Publication number: 20050203310
    Abstract: In a process for producing a lower aliphatic carboxylic acid ester by esterifying a lower aliphatic carboxylic acid and a lower olefin into a lower aliphatic carboxylic acid ester using an acid catalyst in a vapor phase, when the system is controlled to contain substantially no acetylene compounds, the deterioration of the catalyst can be remarkably prevented from proceeding and in turn a stable operation can be continuously performed for a long time.
    Type: Application
    Filed: November 8, 2002
    Publication date: September 15, 2005
    Applicant: SHOWA DENKO K.K.
    Inventors: Kyoichi Watanabe, Hiroshi Uchida
  • Patent number: 6908924
    Abstract: The present invention is directed to a compound, method and composition of treating or preventing viral infections, in particular, human immunodeficiency virus (HIV) and hepatitis B virus (HBV) infections, in human patients or other animal hosts, comprising the administration of N4-acylcytosine-1,3-dioxolane and pharmaceutically acceptable salts, prodrugs, and other derivatives thereof.
    Type: Grant
    Filed: December 16, 2002
    Date of Patent: June 21, 2005
    Assignee: Pharmasset, Inc.
    Inventors: Kyoichi A. Watanabe, Junxing Shi, Michael J. Otto
  • Publication number: 20050090660
    Abstract: This invention provides processes for the preparation of compounds having the structure: wherein X and Y are same or different, and H, OH, OR, SH, SR, NH2, NHR?, or NR?R? Z is H, F, Cl, Br, I, CN, or NH2. R is hydrogen, halogen, lower alkyl of C1-C6 or aralkyl, NO2, NH2, NHR?, NR?R?, OH, OR, SH, SR, CN, CONH2, CSNH2, CO2H, CO2R?, CH2CO2H, CH2CO2R?, CH?CHR, CH2CH?CHR, or C?CR. R? and R? are same or different, and lower alkyl of C1-C6.
    Type: Application
    Filed: November 23, 2004
    Publication date: April 28, 2005
    Inventors: Kyoichi Watanabe, Woo-Baeg Choi
  • Patent number: 6855821
    Abstract: Disclosed are novel processes for preparing 1,3-dioxolane nucleosides of general formula I and II: wherein B is a purine or pyrimidine base or an analog or derivative thereof. The invention also provides intermediates for use in the preparation of these compounds.
    Type: Grant
    Filed: August 6, 2003
    Date of Patent: February 15, 2005
    Assignee: Pharmasset, Ltd.
    Inventors: Jinfa Du, Kyoichi A. Watanabe
  • Publication number: 20050031953
    Abstract: A bipolar battery of the present invention includes a battery element composed by stacking in series a plurality of bipolar electrodes, in each of which a positive electrode is formed on one surface of a collector and a negative electrode is formed on the other surface, with electrolytes interposed therebetween. Further, the bipolar battery includes laminate films covering the battery element, each of the laminate films containing a metal layer, and tabs composed by being extracted from the battery element to outsides of the laminate films. In the bipolar battery, thickness of a resin layer interposed between the tab and the metal layer is equal to or more than thickness of the tab.
    Type: Application
    Filed: August 6, 2004
    Publication date: February 10, 2005
    Inventors: Kyoichi Watanabe, Kouichi Nemoto
  • Publication number: 20040266723
    Abstract: The disclosed invention is a composition for and a method of treating Flaviviridae (Hepacivirus, Flavivirus, Pestivirus) infections, including BVDV and HCV, in a host, including animals, and especially humans, using a small molecule or its pharmaceutically acceptable salt or prodrug.
    Type: Application
    Filed: December 17, 2001
    Publication date: December 30, 2004
    Inventors: Michael J. Otto, Kyoichi A. Watanabe, Steve Patterson, Krysztof W. Pankiewicz, Lieven Stuyver
  • Publication number: 20040253512
    Abstract: A bipolar battery includes a bipolar electrode and an electrolyte layer. The bipolar electrode includes a current collector, a positive electrode layer formed on one surface of the current collector, and a negative electrode layer formed on the other surface of the current collector. The bipolar electrode is sequentially laminated to provide connection in series via the electrolyte layer to form a stack structure. The positive electrode layer, the negative electrode layer and the electrolyte layer are potted with a resin portion.
    Type: Application
    Filed: April 28, 2004
    Publication date: December 16, 2004
    Applicant: NISSAN MOTOR CO., LTD.
    Inventors: Kyoichi Watanabe, Kenji Hosaka, Kouichi Nemoto
  • Publication number: 20040214844
    Abstract: The present invention is directed to a method and composition of treating or preventing viral infections, in particular, human immunodeficiency virus (HIV) and hepatitis B virus (HBV) infections, in human patients or other animal hosts, comprising the administration of N4-acyl-2′,3′-dideoxy-5-fluorocytidine or N4-acyl-2′,3′-didehydro-2′,3′-dideoxy-5-fluorocytidine, and pharmaceutically acceptable salts, prodrugs, and other derivatives thereof.
    Type: Application
    Filed: December 13, 2002
    Publication date: October 28, 2004
    Inventors: Michael J. Otto, Junxing Shi, Kyoichi A. Watanabe
  • Publication number: 20040181088
    Abstract: A process for producing a lower aliphatic carboxylic acid ester comprising reacting a lower aliphatic carboxylic acid and a lower olefin in the presence of a catalyst, wherein the raw materials contain substantially no halogens. The catalyst used can be remarkably prevented from deteriorating and a stable operation of the process can be continuously performed for an extended period.
    Type: Application
    Filed: April 29, 2004
    Publication date: September 16, 2004
    Inventors: Kyoichi Watanabe, Hiroshi Uchida
  • Publication number: 20040181078
    Abstract: Disclosed are novel bicyclic tris(anhydride)s useful as intermediates in the synthesis of biologically active compounds, and the compounds which may be synthesized from such intermediates.
    Type: Application
    Filed: March 29, 2004
    Publication date: September 16, 2004
    Applicant: Pharmasset, Ltd.
    Inventors: Krzysztof W. Pankiewicz, Krystyna Lesiak, Kyoichi A. Watanabe
  • Publication number: 20040143132
    Abstract: A catalyst for use in the production of a lower aliphatic carboxylic acid ester by reacting a lower olefin and a lower aliphatic acid ester in a gas phase, which catalyst has been decreased in activity through use, is regenerated by heating to be recovered in activity. The regenerated catalyst is reused for the production of a lower aliphatic carboxylic acid ester.
    Type: Application
    Filed: November 18, 2003
    Publication date: July 22, 2004
    Inventors: Etsuko Kadowaki, Kyoichi Watanabe, Yumiko Obata, Hiroshi Uchida
  • Publication number: 20040087806
    Abstract: Disclosed are novel processes for preparing 1,3-dioxolane nucleosides of general formula I and II: 1
    Type: Application
    Filed: August 6, 2003
    Publication date: May 6, 2004
    Inventors: Jinfa Du, Kyoichi A. Watanabe
  • Publication number: 20040082574
    Abstract: The disclosed invention is a bicyclo[4.2.1]nonane and its pharmaceutically acceptable salt or prodrug, and its composition and method of use to treat Flaviviridae (Hepacivirus, Flavivirus, and Pestivirus) infections in a host, including animals, and especially humans.
    Type: Application
    Filed: August 1, 2003
    Publication date: April 29, 2004
    Inventors: Peiyuan Wang, Lieven J. Stuyver, Kyoichi A. Watanabe, Abdalla Hassan, Byoung-Kwon Chun, Laurent Hollecker
  • Patent number: 6713623
    Abstract: Disclosed are novel bicyclic tris(anhydride)s useful as intermediates in the synthesis of biologically active compounds, and the compounds which may be synthesized from such intermediates.
    Type: Grant
    Filed: November 13, 2001
    Date of Patent: March 30, 2004
    Assignee: Pharmasset, Ltd.
    Inventors: Krzysztof W. Pankiewicz, Krystyna Lesiak, Kyoichi A. Watanabe
  • Publication number: 20040002476
    Abstract: The invention is a compound, composition, use for and a method of treating Flaviviridae (Hepacivirus, Flavirius, Pestivirus) infections, including BVDV and HCV, or abnormal cellular proliferation, including malignant tumors, in a host including animals, and especially humans, using a &bgr;-D or &bgr;-L nucleoside of general formula (I)-(XX), or their pharmaceutically acceptable salt or prodrug thereof.
    Type: Application
    Filed: February 13, 2003
    Publication date: January 1, 2004
    Inventors: Lieven J. Stuyver, Junxing Shi, Kyoichi A. Watanabe
  • Publication number: 20040002001
    Abstract: A battery of the present invention is provided with positive and negative terminals led out of the battery and one or more sealing members filled between the positive and negative terminals and the battery. Each of the sealing members is provided with one or more resin layers, each of which is provided with one or more non-molecular-oriented resin layers.
    Type: Application
    Filed: June 17, 2003
    Publication date: January 1, 2004
    Applicant: NISSAN MOTOR CO., LTD.
    Inventor: Kyoichi Watanabe
  • Publication number: 20030224246
    Abstract: A battery comprises at least two unit cells. Each of the at least two unit cells is provided with an outer sheath film composed of polymer-metal composite material, a positive-electrode current collector, a negative-electrode current collector, a separator disposed between the positive-electrode current collector and the negative-electrode current collector, one positive electrode tab to which the positive-electrode current collector is connected and protruding from a first sealed portion of the outer sheath film, one negative electrode tab to which the negative-electrode current collector is connected and protruding from a second sealed portion of the outer sheath film, a first polymer layer disposed between the positive electrode tab and the outer sheath film, and a second polymer layer disposed between the negative electrode tab and the outer sheath film.
    Type: Application
    Filed: April 22, 2003
    Publication date: December 4, 2003
    Applicant: NISSAN MOTOR CO., LTD.
    Inventors: Kyoichi Watanabe, Hideaki Horie, Hiroshi Sugawara, Takaaki Abe, Osamu Shimamura, Yuuji Tanjou, Takanori Itou
  • Publication number: 20030198866
    Abstract: A battery includes connector members and a plurality of unit cells connected in parallel through the connector members. Each of the plurality of unit cells having a gradient in a curve of an open circuit voltage with respect to a depth of discharge such that depths of discharge of the plurality of the unit cells are balanced in level to one another.
    Type: Application
    Filed: April 4, 2003
    Publication date: October 23, 2003
    Applicant: NISSAN MOTOR CO., LTD.
    Inventors: Yuuji Tanjou, Kyoichi Watanabe, Osamu Shimamura, Takanori Itou, Hideaki Horie, Hiroshi Sugawara, Takaaki Abe
  • Publication number: 20030193317
    Abstract: A battery includes a plurality of flat type batteries and a connector member that electrically connect the plurality of flat type batteries to one another. Each of the plurality of flat type batteries is provided with an outer sheath having a composite laminate film, an electric power generating component, which includes a positive electrode plate, a separator and a negative electrode plate and is accommodated in the outer sheath by compelling at least a part of a circumference of the outer sheath to be joined by thermally welded portions, a positive-electrode terminal lead conductive with the positive electrode plate and held between the thermally welded portions, and a negative-electrode terminal lead conductive with the negative electrode plate and held between the thermally welded portions. At least one of the positive-electrode terminal lead and the negative-electrode terminal lead has a surface covering layer made of a metal different from that of its terminal mother material.
    Type: Application
    Filed: March 11, 2003
    Publication date: October 16, 2003
    Applicant: NISSAN MOTOR CO., LTD.
    Inventors: Osamu Shimamura, Hideaki Horie, Kyoichi Watanabe, Takaaki Abe, Takanori Itou, Hiroshi Sugawara, Yuuji Tanjou