Patents by Inventor Naoya Kobayashi

Naoya Kobayashi 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: 20030143464
    Abstract: Disclosed herein is a powder material comprising a compound which electrochemically intercalates and deintercalates a lithium ion, wherein the powder material is comprised mainly of a compound containing at least an oxygen element, a sulfur element and at least one transition metal element.
    Type: Application
    Filed: January 28, 1999
    Publication date: July 31, 2003
    Inventors: TOMOYA YAMAMOTO, SOICHIRO KAWAKAMI, NAOYA KOBAYASHI
  • Publication number: 20030139511
    Abstract: A chlorine-containing resin composition for covering an electric wire of the present invention, has a heat stability of not less than 240 minutes and a volume resistivity of 5.0×1013 to 1.
    Type: Application
    Filed: November 25, 2002
    Publication date: July 24, 2003
    Applicant: TODA KOGYO CORPORATION
    Inventors: Naoya Kobayashi, Torayuki Honmyo, Tsutomu Katamoto, Akinori Yamamoto
  • Patent number: 6596432
    Abstract: A highly reliable rechargeable battery comprising an anode, a separator, a cathode, an electrolyte or an electrolyte solution, and a housing, characterized in that said anode is structured to have a size which is greater than that of said cathode. The rechargeable battery provides an increased energy density and has a prolonged charging and discharging cycle life, in which a dendrite causing a reduction in the battery performance, which is generated upon operating charging in the conventional rechargeable battery, is effectively prevented from generating or from growing in the case where it should be generated.
    Type: Grant
    Filed: May 30, 1995
    Date of Patent: July 22, 2003
    Assignee: Canon Kabushiki Kaisha
    Inventors: Soichiro Kawakami, Shinya Mishina, Naoya Kobayashi, Masaya Asao
  • Publication number: 20030104615
    Abstract: The present invention provides a safe immortalized bone marrow mesenchymal stem cell obtained by transferring a cell proliferation factor gene inserted between a pair of site-specific recombination sequences to a bone marrow mesenchymal stem cell.
    Type: Application
    Filed: October 12, 2001
    Publication date: June 5, 2003
    Inventors: Naoya Kobayashi, Philippe Leboulch, Noriaki Tanaka, Toshiyoshi Fujiwara
  • Patent number: 6569568
    Abstract: A lithium secondary battery comprising at least a negative electrode, a positive electrode and an electrolyte, and utilizing oxidizing and reducing reactions of lithium ions for charging and discharging, wherein an electrode having an active material which has at least an amorphous phase and a half value width not smaller than 0.48 degrees of a peak having a highest diffraction intensity at 2&thgr; on an X-ray diffractometric chart traced at a diffraction intensity at an X-ray diffraction angle of 2&thgr;, and is made of a material which has an amorphous phase and contains at least one element selected from among cobalt, nickel, manganese and iron is used as the negative electrode and/or the positive electrode.
    Type: Grant
    Filed: November 14, 2001
    Date of Patent: May 27, 2003
    Assignee: Canon Kabushiki Kaisha
    Inventors: Naoya Kobayashi, Soichiro Kawakami, Tomoya Yamamoto
  • Patent number: 6558848
    Abstract: A secondary cell having a long cycle lifetime and a superior charge and discharge performance is provided with an electrode having a collector having a metal matrix 301 having micropores 302 with an average diameter not larger than 3 microns. The micropores 302 is formed by utilizing reduction reaction of a metal.
    Type: Grant
    Filed: March 14, 1996
    Date of Patent: May 6, 2003
    Assignee: Canon Kabushiki Kaisha
    Inventors: Naoya Kobayashi, Soichiro Kawakami
  • Publication number: 20030047488
    Abstract: A catalyst for reacting hydrocarbon with steam according to the present invention, has a specific surface area of 40 to 300 m2/g, and comprises:
    Type: Application
    Filed: August 19, 2002
    Publication date: March 13, 2003
    Inventors: Katsuomi Takehira, Tetsuya Shishido, Hiroyuki Morioka, Naoya Kobayashi, Tsutomu Katamoto, Tomoyuki Imai, Kozo Iida, Toshinobu Yasutake
  • Patent number: 6517974
    Abstract: A lithium secondary battery comprising at least a negative electrode, a positive electrode and an electrolyte, and utilizing oxidizing and reducing reactions of lithium ions for charging and discharging, wherein an electrode having an active material which has at least an amorphous phase and a half value width not smaller than 0.48 degrees of a peak having a highest diffraction intensity at 2&thgr; on an X-ray diffractometric chart traced at a diffraction intensity at an X-ray diffraction angle of 2&thgr;, and is made of a material which has an amorphous phase and contains at least one element selected from among cobalt, nickel, manganese and iron is used as the negative electrode and/or the positive electrode.
    Type: Grant
    Filed: January 27, 1999
    Date of Patent: February 11, 2003
    Assignee: Canon Kabushiki Kaisha
    Inventors: Naoya Kobayashi, Soichiro Kawakami, Tomoya Yamamoto
  • Patent number: 6509405
    Abstract: A chlorine-containing resin composition for covering an electric wire of the present invention, has a heat stability of not less than 240 minutes and a volume resistivity of 5.0×1013 to 1.0×1016 &OHgr;·cm when measured according to JIS K6723, and comprises: 100 parts by weight of a chlorine-containing resin, and 1.5 to 10 parts by weight of Mg—Al-based hydrotalcite-type particles having a composition represented by the formula: [MgxCay]·Alz·(OH)2·An−p·mH2O  wherein 0.2≦z/(x+z)≦0.6; 0.01≦y/(x+z)≦0.20; x+y+z=1; p=(2(x+y−1)+3z)/n; A is a n-valent anion; and m is more than 0 and not more than 0.75, having a plate surface diameter of 0.1 to 1.0 &mgr;m and a thickness of 0.02 to 0.08 &mgr;m, and containing calcium at a molar ratio of Ca to a sum of Mg and Al of 0.01:1 to 0.
    Type: Grant
    Filed: February 1, 2000
    Date of Patent: January 21, 2003
    Assignee: Toda Kogyo Corporation
    Inventors: Naoya Kobayashi, Torayuki Honmyo, Tsutomu Katamoto, Akinori Yamamoto
  • Patent number: 6495289
    Abstract: In Lithium secondary cells, alkali secondary cells and bromine-zinc secondary batteries capable of retarding the growth of a dendrite, which would occur at the time of charging thereof and result in performance degradation, and having high energy densities and long cycle lives, a method for forming a material of a negative electrode of such a secondary cell or battery and a method for handling the material of the negative electrode are provided. The secondary cell or battery is provided with positive and negative electrodes separated from each other by a separator in an electrolyte contained in a case. The negative electrode is made of metallic powder alloyed with at least an amphoteric metal which reacts with both of an acid and an alkali.
    Type: Grant
    Filed: April 2, 1998
    Date of Patent: December 17, 2002
    Assignee: Canon Kabushiki Kaisha
    Inventors: Soichiro Kawakami, Shinya Mishina, Naoya Kobayashi, Masaya Asao
  • Patent number: 6432585
    Abstract: An electrode structural body comprising a plate-like shaped collector having opposite surfaces and an electrode material layer formed an at least one of said opposite surfaces of said collector, wherein said electrode material layer contains 35% by weight or more of a grained host matrix material of 5 to 60 in average particle size. A rechargeable battery provided with said electrode structural body as an electrode thereof.
    Type: Grant
    Filed: January 28, 1998
    Date of Patent: August 13, 2002
    Assignee: Canon Kabushiki Kaisha
    Inventors: Soichiro Kawakami, Naoya Kobayashi, Masaya Asao, Takeshi Kosuzu, Hironao Kimura
  • Patent number: 6413639
    Abstract: The Mg—Al-based hydrotalcite-type particles according to the present invention have a plate surface diameter as large as from 0.1 to less than 1.0 &mgr;m, an adequate thickness ranging from 0.02 to 0.08 &mgr;m and a heat-resisting time of not less than 160 minutes when measured by a specific method, and are, therefore, suitable as a stabilizer for chlorine-containing resins.
    Type: Grant
    Filed: August 4, 2000
    Date of Patent: July 2, 2002
    Assignee: Toda Kogyo Corporation
    Inventors: Naoya Kobayashi, Torayuki Honmyo, Tsutomu Katamoto, Akinori Yamamoto
  • Publication number: 20020081283
    Abstract: Hepatocyte cells that are reversibly immortalized and grown in culture, which are functional and safe for use in transplantation, are disclosed. Also disclosed are methods for immortalizing primary hepatocytes, expanding the population of immortalized hepatocytes in culture, then reversing the immortalization to produce hepatocytes that are functional and safe for use in transplantation.
    Type: Application
    Filed: March 22, 2001
    Publication date: June 27, 2002
    Inventors: Ira J. Fox, Philippe LcBoulch, Naoya Kobayashi
  • Publication number: 20020064242
    Abstract: In a data demodulating method, predetermined input data is demodulated based upon a response characteristic of the partial response class 4; the demodulated input data is discrete-filtered to thereby produce filtering data; and the filtering data is maximum likelihood-decoded to thereby producing asymmetrical response data. Further, a magnetic recording/reproducing apparatus is arranged by using this data demodulating method.
    Type: Application
    Filed: November 13, 2001
    Publication date: May 30, 2002
    Inventors: Seiichi Mita, Hideki Sawaguchi, Naoya Kobayashi, Masaharu Kondo
  • Publication number: 20020064710
    Abstract: A highly reliable rechargeable battery comprising an anode, a separator, a cathode, an electrolyte or an electrolyte solution, and a housing, characterized in that said anode is structured to have a size which is greater than that of said cathode. The rechargeable battery provides an increased energy density and has a prolonged charging and discharging cycle life, in which a dendrite causing a reduction in the battery performance, which is generated upon operating charging in the conventional rechargeable battery, is effectively prevented from generating or from growing in the case where it should be generated.
    Type: Application
    Filed: May 30, 1995
    Publication date: May 30, 2002
    Inventors: SOICHIRO KAWAKAMI, SHINYA MISHINA, NAOYA KOBAYASHI, MASAYA ASAO
  • Patent number: 6395423
    Abstract: A secondary battery exhibiting a long cycle life and comprising a negative pole activating material made of lithium or zinc is provided, the battery at least having a negative pole made of lithium or zinc serving as the negative pole activating material, an electrolyte (electrolytic solution), a separator, a positive pole made of a positive pole activating material, a collecting electrode and a battery case, wherein at least the surface of the negative pole is covered with a film having a structure which allows ions relating to the battery reactions to pass through. Since growth of dendrite of lithium or zinc at the time of the charge can be prevented, short circuit between the negative pole and the positive pole can be prevented. Therefore, the charge/discharge cycle life can significantly be lengthened.
    Type: Grant
    Filed: September 30, 1998
    Date of Patent: May 28, 2002
    Assignee: Canon Kabushiki Kaisha
    Inventors: Soichiro Kawakami, Shinya Mishina, Naoya Kobayashi
  • Patent number: 6391492
    Abstract: A secondary battery exhibiting a long cycle life and comprising a negative pole activating material made of lithium or zinc is provided, the battery at least having a negative pole made of lithium or zinc serving as the negative pole activating material, an electrolyte (electrolytic solution), a separator, a positive pole made of a positive pole activating material, a collecting electrode and a battery case, wherein at least the surface of the negative pole is covered with a film having a structure which allows ions relating to the battery reactions to pass through. Since growth of dendrites of lithium or zinc at the time of charge can be prevented, short circuiting between the negative pole and the positive pole can be prevented. Therefore, the charge/discharge cycle life can significantly be lengthened.
    Type: Grant
    Filed: June 7, 1995
    Date of Patent: May 21, 2002
    Assignee: Canon Kabushiki Kaisha
    Inventors: Soichiro Kawakami, Shinya Mishina, Naoya Kobayashi
  • Publication number: 20020055041
    Abstract: A lithium secondary battery comprising at least a negative electrode, a positive electrode and an electrolyte, and utilizing oxidizing and reducing reactions of lithium ions for charging and discharging, wherein an electrode having an active material which has at least an amorphous phase and a half value width not smaller than 0.48 degrees of a peak having a highest diffraction intensity at 2&thgr; on an X-ray diffractometric chart traced at a diffraction intensity at an X-ray diffraction angle of 2&thgr;, and is made of a material which has an amorphous phase and contains at least one element selected from among cobalt, nickel, manganese and iron is used as the negative electrode and/or the positive electrode.
    Type: Application
    Filed: November 14, 2001
    Publication date: May 9, 2002
    Inventors: Naoya Kobayashi, Soichiro Kawakami, Tomoya Yamamoto
  • Publication number: 20020015848
    Abstract: Hollow carbon particles having an average particle size of 0.05 to 5.0 &mgr;m, a shell thickness of 5 to 50 nm and a particle size distribution of not more than 30%. The hollow carbon particles have a desired shape, and are excellent in particle size distribution and mechanical strength.
    Type: Application
    Filed: June 11, 2001
    Publication date: February 7, 2002
    Inventor: Naoya Kobayashi
  • Patent number: 6337889
    Abstract: In a data demodulating method, predetermined input data is based upon a response characteristic of the partial response class 4. The predetermined input data is discrete-filtered to thereby produce filtered asymmetrical data. The filtered asymmetrical data is maximum-likelihood-decoded to thereby produce decoded data that is demodulated. Further, a magnetic recording/reproducing apparatus is arranged by using this data demodulating method.
    Type: Grant
    Filed: July 30, 1998
    Date of Patent: January 8, 2002
    Assignee: Hitachi, Ltd.
    Inventors: Seiichi Mita, Hideki Sawaguchi, Naoya Kobayashi, Masaharu Kondo