Patents by Inventor Yoshihiro Tokutome

Yoshihiro Tokutome 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).

  • Electrode plate unit for rechargeable battery and manufacturing method thereof
    Publication number: 20040226153
    Abstract: A plurality of positive electrode plates and negative electrode plates are stacked alternately upon one another with intervening separators therebetween, wherein lateral edges of the positive electrode plates protrude beyond the negative electrode plates on one side, and lateral edges of the negative electrode plates protrude beyond the group of positive electrode plates on the opposite side. Collector plates are brought in tight contact with respective lateral edges of the positive and negative electrode plates, and heat is applied to the collector plate on an opposite surface of the electrode plates from a non-contact type heat source at several locations in lines along a direction in which the electrode plates are stacked.
    Type: Application
    Filed: May 11, 2004
    Publication date: November 18, 2004
    Applicants: Matsushita Electric Industrial Co., Ltd., Toyota Jidosha Kabushiki Kaisha
    Inventors: Shoji Karasawa, Hiromi Kajiya, Yoshihiro Tokutome, Akihiro Taniguchi, Noriyuki Fujioka, Masaru Masaki
  • Electrode plate unit for rechargeable battery and manufacturing method thereof
    Patent number: 6761993
    Abstract: A plurality of positive electrode plates and negative electrode plates are stacked alternately upon one another with intervening separators therebetween, wherein lateral edges of the positive electrode plates protrude beyond the negative electrode plates on one side, and lateral edges of the negative electrode plates protrude beyond the group of positive electrode plates on the opposite side. Collector plates are brought in tight contact with respective lateral edges of the positive and negative electrode plates, and heat is applied to the collector plate on an opposite surface of the electrode plates from a non-contact type heat source at several locations in lines along a direction in which the electrode plates are stacked.
    Type: Grant
    Filed: September 18, 2000
    Date of Patent: July 13, 2004
    Assignees: Matsushita Electric Industrial Co., Ltd., Toyota Jidosha Kabushiki Kaisha
    Inventors: Shoji Karasawa, Hiromi Kajiya, Yoshihiro Tokutome, Akihiro Taniguchi, Noriyuki Fujioka, Masaru Masaki
  • Rectangular electrode and lead part therefor
    Patent number: 6627347
    Abstract: A rectangular electrode plate including a core metal sheet and a mixture paste coated thereon has a lead on one long side edge thereof where no mixture is coated, and a mixture non-coated part on the other side edge thereof. Positioning holes are punched only in the lead so that the stress exerted when punching the holes will not cause the mixture paste to fall off. Stacked electrode plates are accommodated within a magazine with a certain clearance between the three side edges of the electrodes other than the lead and the inner surface of the magazine, and fed one by one to be assembled into an electrode plate group to form a battery.
    Type: Grant
    Filed: April 12, 2001
    Date of Patent: September 30, 2003
    Assignees: Matsushita Electric Industrial Co., Ltd., Toyota Jidosah Kabushiki Kaisha
    Inventors: Shinsuke Fukuda, Izumi Yamamura, Hiromi Kajiya, Yoshihiro Tokutome
  • Method for bonding collector plates to end faces of electrode plates
    Patent number: 6440182
    Abstract: Positive electrode plates and negative electrode plates are arranged alternately with intervening separators, and their end faces are respectively butted on collector plates. A solder material made from nickel alloy is disposed on the surfaces of the collector plates, which are made from nickel. An electron beam is irradiated onto the collector plates for causing the solder material to melt, thereby bonding the end faces of the positive and negative electrode plates with the collector plates.
    Type: Grant
    Filed: September 26, 2000
    Date of Patent: August 27, 2002
    Assignees: Matsushita Electric Industrial Co., Ltd., Toyota Jidosha Kabushiki Kaisha, Mitsubishi Denki Kabushiki Kaisha
    Inventors: Shoji Karasawa, Hiromi Kajiya, Yoshihiro Tokutome, Masaru Masaki, Shinichi Hibino, You Noguchi
  • Electrode and assembling method thereof
    Publication number: 20010031395
    Abstract: A rectangular electrode plate including a core metal sheet and a mixture paste coated thereon has a lead on one long side edge thereof where no mixture is coated, and a mixture non-coated part on the other side edge thereof. Positioning holes are punched only in the lead so that the stress exerted when punching the holes will not cause the mixture paste to fall off. Stacked electrode plates are accommodated within a magazine with a certain clearance between the three side edges of the electrodes other than the lead and the inner surface of the magazine, and fed one by one to be assembled into an electrode plate group to form a battery.
    Type: Application
    Filed: April 12, 2001
    Publication date: October 18, 2001
    Applicant: Matsushita Electric Industrial Co., Ltd.
    Inventors: Shinsuke Fukuda, Izumi Yamamura, Hiromi Kajiya, Yoshihiro Tokutome