Patents by Inventor Michiko Komiyama

Michiko Komiyama 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: 7718314
    Abstract: A cathode material capable of improving capacity and superior low temperature characteristics, and a battery using the cathode material are provided. A cathode and an anode are layered with an electrolyte layer and a separator in between. The cathode contains a complex oxide containing lithium, manganese, nickel, and cobalt; a complex oxide containing lithium and at least one of nickel and cobalt; and a complex oxide containing lithium and manganese and having a spinel structure or a phosphorus oxide containing lithium and iron at a given ratio.
    Type: Grant
    Filed: March 2, 2006
    Date of Patent: May 18, 2010
    Assignee: Sony Corporation
    Inventors: Michiko Komiyama, Ken Segawa, Yuzuru Fukushima
  • Patent number: 7563539
    Abstract: A non-aqueous electrolyte secondary battery has a positive electrode having a positive electrode collector, on which a positive electrode active material layer containing a positive electrode active material as a complex oxide of Li and transition metals are formed, and a negative electrode having a negative collector, on which a negative electrode active material layer is formed. The non-aqueous electrolyte secondary battery is a gel or solid non-aqueous electrolyte secondary battery having a battery device in which a positive electrode and a negative electrode are laminated with an electrolyte layer therebetween in a film-state packaging member constructed by metal foil laminated films, and containing a lithium salt, a non-aqueous solvent, and a polymer material. The concentration in mass ratio of a free acid in the electrolyte layer is 60 ppm and less.
    Type: Grant
    Filed: March 7, 2005
    Date of Patent: July 21, 2009
    Assignee: Sony Corporation
    Inventors: Fumito Kameyama, Fumiko Hara, Tsuyoshi Sugiyama, Michiko Komiyama
  • Patent number: 7223495
    Abstract: A non-aqueous electrolyte secondary battery has a positive electrode having a positive electrode collector, on which a positive electrode active material layer containing a positive electrode active material as a complex oxide of Li and transition metals are formed, and a negative electrode having a negative collector, on which a negative electrode active material layer is formed. The non-aqueous electrolyte secondary battery is a gel or solid non-aqueous electrolyte secondary battery having a battery device in which a positive electrode and a negative electrode are laminated with an electrolyte layer therebetween in a film-state packaging member constructed by metal foil laminated films, and containing a lithium salt, a non-aqueous solvent, and a polymer material. The concentration in mass ratio of a free acid in the electrolyte layer is 60 ppm and less.
    Type: Grant
    Filed: March 7, 2005
    Date of Patent: May 29, 2007
    Assignee: Sony Corporation
    Inventors: Fumito Kameyama, Fumiko Hara, Tsuyoshi Sugiyama, Michiko Komiyama
  • Publication number: 20060216601
    Abstract: A cathode material capable of improving capacity and superior low temperature characteristics, and a battery using the cathode material are provided. A cathode and an anode are layered with an electrolyte layer and a separator in between. The cathode contains a complex oxide containing lithium, manganese, nickel, and cobalt; a complex oxide containing lithium and at least one of nickel and cobalt; and a complex oxide containing lithium and manganese and having a spinel structure or a phosphorus oxide containing lithium and iron at a given ratio.
    Type: Application
    Filed: March 2, 2006
    Publication date: September 28, 2006
    Inventors: Michiko Komiyama, Ken Segawa, Yuzuru Fukushima
  • Patent number: 6967066
    Abstract: A non-aqueous electrolyte secondary battery has a positive electrode having a positive electrode collector, on which a positive electrode active material layer containing a positive electrode active material as a complex oxide of Li and transition metals are formed, and a negative electrode having a negative collector, on which a negative electrode active material layer is formed. The non-aqueous electrolyte secondary battery is a gel or solid non-aqueous electrolyte secondary battery having a battery device in which a positive electrode and a negative electrode are laminated with an electrolyte layer therebetween in a film-state packaging member constructed by metal foil laminated films, and containing a lithium salt, a non-aqueous solvent, and a polymer material. The concentration in mass ratio of a free acid in the electrolyte layer is 60 ppm and less.
    Type: Grant
    Filed: April 4, 2001
    Date of Patent: November 22, 2005
    Assignee: Sony Corporation
    Inventors: Fumito Kameyama, Fumiko Hara, Tsuyoshi Sugiyama, Michiko Komiyama
  • Publication number: 20050186472
    Abstract: A non-aqueous electrolyte secondary battery has a positive electrode having a positive electrode collector, on which a positive electrode active material layer containing a positive electrode active material as a complex oxide of Li and transition metals are formed, and a negative electrode having a negative collector, on which a negative electrode active material layer is formed. The non-aqueous electrolyte secondary battery is a gel or solid non-aqueous electrolyte secondary battery having a battery device in which a positive electrode and a negative electrode are laminated with an electrolyte layer therebetween in a film-state packaging member constructed by metal foil laminated films, and containing a lithium salt, a non-aqueous solvent, and a polymer material. The concentration in mass ratio of a free acid in the electrolyte layer is 60 ppm and less.
    Type: Application
    Filed: March 7, 2005
    Publication date: August 25, 2005
    Inventors: Fumito Kameyama, Fumiko Hara, Tsuyoshi Sugiyama, Michiko Komiyama
  • Publication number: 20050175891
    Abstract: A non-aqueous electrolyte secondary battery has a positive electrode having a positive electrode collector, on which a positive electrode active material layer containing a positive electrode active material as a complex oxide of Li and transition metals are formed, and a negative electrode having a negative collector, on which a negative electrode active material layer is formed. The non-aqueous electrolyte secondary battery is a gel or solid non-aqueous electrolyte secondary battery having a battery device in which a positive electrode and a negative electrode are laminated with an electrolyte layer therebetween in a film-state packaging member constructed by metal foil laminated films, and containing a lithium salt, a non-aqueous solvent, and a polymer material. The concentration in mass ratio of a free acid in the electrolyte layer is 60 ppm and less.
    Type: Application
    Filed: March 7, 2005
    Publication date: August 11, 2005
    Inventors: Fumito Kameyama, Fumiko Hara, Tsuyoshi Sugiyama, Michiko Komiyama
  • Publication number: 20050153210
    Abstract: A non-aqueous electrolyte secondary battery has a positive electrode having a positive electrode collector, on which a positive electrode active material layer containing a positive electrode active material as a complex oxide of Li and transition metals are formed, and a negative electrode having a negative collector, on which a negative electrode active material layer is formed. The non-aqueous electrolyte secondary battery is a gel or solid non-aqueous electrolyte secondary battery having a battery device in which a positive electrode and a negative electrode are laminated with an electrolyte layer therebetween in a film-state packaging member constructed by metal foil laminated films, and containing a lithium salt, a non-aqueous solvent, and a polymer material. The concentration in mass ratio of a free acid in the electrolyte layer is 60 ppm and less.
    Type: Application
    Filed: March 7, 2005
    Publication date: July 14, 2005
    Inventors: Fumito Kameyama, Fumiko Hara, Tsuyoshi Sugiyama, Michiko Komiyama
  • Publication number: 20020031703
    Abstract: A non-aqueous electrolyte secondary battery has a positive electrode having a positive electrode collector, on which a positive electrode active material layer containing a positive electrode active material as a complex oxide of Li and transition metals are formed, and a negative electrode having a negative collector, on which a negative electrode active material layer is formed. The non-aqueous electrolyte secondary battery is a gel or solid non-aqueous electrolyte secondary battery having a battery device in which a positive electrode and a negative electrode are laminated with an electrolyte layer therebetween in a film-state packaging member constructed by metal foil laminated films, and containing a lithium salt, a non-aqueous solvent, and a polymer material. The concentration in mass ratio of a free acid in the electrolyte layer is 60 ppm and less.
    Type: Application
    Filed: April 4, 2001
    Publication date: March 14, 2002
    Inventors: Fumito Kameyama, Fumiko Hara, Tsuyoshi Sugiyama, Michiko Komiyama
  • Patent number: 6072026
    Abstract: An aniline polymer having structural Formula I: ##STR1## wherein both n1 and n2 are integers of 2 or more, m is an integer of 0 or more and X.sup.- is any anion. A substance for use in an electrode must be an aniline polymer having preferably two or more serial S--S linkages, such as "S--S--S", "S--S--S--S" and the like, consisting of sulfur. By having such structures, the substance, when used as an electrode active material, serves to improve capacity considerably as compared with other conventional electrode active materials.
    Type: Grant
    Filed: September 2, 1997
    Date of Patent: June 6, 2000
    Assignee: Yazaki Corporation
    Inventors: Kenichi Kawase, Yoshinori Inoue, Michiko Komiyama, Mitsuhiro Mori, Yasushi Oura, Katsuhiko Naoi