Patents by Inventor Katsunori Maekawa

Katsunori Maekawa 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).

  • Nickel metal hydride storage battery
    Patent number: 7452629
    Abstract: A nickel metal hydride storage battery included a battery case, and a group of electrode plates arranged in the battery case, wherein the battery case includes a battery case main body having a hole and a lid for closing the hole. The battery case includes a first portion made of a metal or a laminate of a metal and a resin, and a second portion made of a resin; and an area of the first portion is 20% or more and 90% or less with respect to the entire battery case. Thus, a nickel metal hydride storage battery is capable of controlling the amount of hydrogen permeating the battery case and capable of suppressing the long-term deterioration.
    Type: Grant
    Filed: March 10, 2004
    Date of Patent: November 18, 2008
    Assignees: Panasonic Corporation, Toyota Jidosha Kabushiki Kaisha
    Inventors: Katsunori Komori, Yoshiaki Ogata, Atsushi Adachi, Katsunori Maekawa, Noriyuki Fujioka
  • Nickel metal hydride storage battery
    Publication number: 20040191619
    Abstract: A nickel metal hydride storage battery included a battery case, and a group of electrode plates arranged in the battery case, wherein the battery case includes a battery case main body having a hole and a lid for closing the hole. The battery case includes a first portion made of a metal or a laminate of a metal and a resin, and a second portion made of a resin; and an area of the first portion is 20% or more and 90% or less with respect to the entire battery case. Thus, a nickel metal hydride storage battery is capable of controlling the amount of hydrogen permeating the battery case and capable of suppressing the long-term deterioration.
    Type: Application
    Filed: March 10, 2004
    Publication date: September 30, 2004
    Applicants: MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD., TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Katsunori Komori, Yoshiaki Ogata, Atsushi Adachi, Katsunori Maekawa, Noriyuki Fujioka