Patents by Inventor Toyoshige Muto

Toyoshige Muto 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).

  • Sealed battery
    Patent number: 8252440
    Abstract: The present invention provides a sealed battery 10 including an electrode body 14 formed by winding a positive electrode plate 11, a negative electrode plate 12 and a separator 13 interposed therebetween so as to have a hollow portion 14a at the center, a tube-shaped center pin 20a inserted in the hollow portion 14a, a battery outer can 17 containing the electrode body 14, an external terminal 19 also serving as a safety valve 18 evacuating gas when a gas pressure in the battery outer can 17 exceeds a predetermined value. A slit 24a is formed on a peripheral surface of the center pin 20a, and a cutout part 22a is formed on at least an end of the center pin 20a at the external terminal 19 side.
    Type: Grant
    Filed: March 2, 2009
    Date of Patent: August 28, 2012
    Assignee: SANYO Electric Co., Ltd.
    Inventors: Syuichi Yamashita, Masanori Ogi, Toyoshige Muto
  • SEALED BATTERY
    Publication number: 20090226799
    Abstract: The present invention provides a sealed battery 10 including an electrode body 14 formed by winding a positive electrode plate 11, a negative electrode plate 12 and a separator 13 interposed therebetween so as to have a hollow portion 14a at the center, a tube-shaped center pin 20a inserted in the hollow portion 14a, a battery outer can 17 containing the electrode body 14, an external terminal 19 also serving as a safety valve 18 evacuating gas when a gas pressure in the battery outer can 17 exceeds a predetermined value. A slit 24a is formed on a peripheral surface of the center pin 20a, and a cutout part 22a is formed on at least an end of the center pin 20a at the external terminal 19 side.
    Type: Application
    Filed: March 2, 2009
    Publication date: September 10, 2009
    Applicant: SANYO ELECTRIC CO., LTD.
    Inventors: Syuichi Yamashita, Masanori Ogi, Toyoshige Muto
  • Cadmium negative electrode for alkaline storage battery and manufacturing method of the same
    Patent number: 6183906
    Abstract: A cadmium negative electrode capable of enhancing a utilization rate of metallic cadmium contained therein as an active material in charged state. In the cadmium negative electrode, a mixture paste of a main active material in form of cadmium oxide or cadmium hydroxide and metallic cadmium powder containing yttrium component is deposited on a metallic active material retention substrate.
    Type: Grant
    Filed: August 11, 1997
    Date of Patent: February 6, 2001
    Assignee: Sanyo Electric Co., Ltd.
    Inventors: Kazuki Shimozono, Toyoshige Muto, Masayuki Terasaka