Patents by Inventor Masatoshi Miyatsuka

Masatoshi Miyatsuka 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).

  • Method for manufacturing lead-acid battery
    Patent number: 9385378
    Abstract: Provided herein is a lead-acid battery for which the risk of breakage of a current collecting lug part of a plate while in use is eliminated by simple means. At least a positive plate group of the lead-acid battery includes: one or more plates each including a current collector having a current collecting portion formed by expanding or punching a lead alloy sheet manufactured by cold rolling, and one or more current collecting lug parts unitarily formed with the current collecting portion; and a strap formed by a cast-on strap casting method and coupled to the one or more current collecting lug parts. The current collecting lug part is formed with an elongated protrusion extending in a direction away from the current collecting portion. The elongated protrusion continuously extends in a direction toward the current collecting portion of the plate from inside the strap.
    Type: Grant
    Filed: March 6, 2015
    Date of Patent: July 5, 2016
    Assignee: Hitachi Chemical Company, Ltd.
    Inventors: Hiroki Tsuji, Masatoshi Miyatsuka, Kazuya Sasaki, Naoki Tsuji, Kenichi Maeda, Yoshifumi Yamada
  • LEAD-ACID BATTERY AND METHOD FOR MANUFACTURING CURRENT COLLECTOR FOR LEAD-ACID BATTERY
    Publication number: 20150180048
    Abstract: Provided herein is a lead-acid battery for which the risk of breakage of a current collecting lug part of a plate while in use is eliminated by simple means. At least a positive plate group of the lead-acid battery includes: one or more plates each including a current collector having a current collecting portion formed by expanding or punching a lead alloy sheet manufactured by cold rolling, and one or more current collecting lug parts unitarily formed with the current collecting portion; and a strap formed by a cast-on strap casting method and coupled to the one or more current collecting lug parts. The current collecting lug part is formed with an elongated protrusion extending in a direction away from the current collecting portion. The elongated protrusion continuously extends in a direction toward the current collecting portion of the plate from inside the strap.
    Type: Application
    Filed: March 6, 2015
    Publication date: June 25, 2015
    Inventors: Hiroki TSUJI, Masatoshi MIYATSUKA, Kazuya SASAKI, Naoki TSUJI, Kenichi MAEDA, Yoshifumi YAMADA
  • Lead-acid battery and method for manufacturing current collector for lead-acid battery
    Patent number: 8999572
    Abstract: Provided herein is a lead-acid battery for which the risk of breakage of a current collecting lug part of a plate while in use is eliminated by simple means. At least a positive plate group of the lead-acid battery includes: one or more plates each including a current collector having a current collecting portion formed by expanding or punching a lead alloy sheet manufactured by cold rolling, and one or more current collecting lug parts unitarily formed with the current collecting portion; and a strap formed by a cast-on strap casting method and coupled to the one or more current collecting lug parts. The current collecting lug part is formed with an elongated protrusion extending in a direction away from the current collecting portion. The elongated protrusion continuously extends in a direction toward the current collecting portion of the plate from inside the strap.
    Type: Grant
    Filed: March 14, 2011
    Date of Patent: April 7, 2015
    Assignee: Shin-Kobe Electric Machinery Co., Ltd.
    Inventors: Hiroki Tsuji, Masatoshi Miyatsuka, Kazuya Sasaki, Naoki Tsuji, Kenichi Maeda, Yoshifumi Yamada
  • LEAD-ACID BATTERY AND METHOD FOR MANUFACTURING CURRENT COLLECTOR FOR LEAD-ACID BATTERY
    Publication number: 20120064402
    Abstract: Provided herein is a lead-acid battery for which the risk of breakage of a current collecting lug part of a plate while in use is eliminated by simple means. At least a positive plate group of the lead-acid battery includes: one or more plates each including a current collector having a current collecting portion formed by expanding or punching a lead alloy sheet manufactured by cold rolling, and one or more current collecting lug parts unitarily formed with the current collecting portion; and a strap formed by a cast-on strap casting method and coupled to the one or more current collecting lug parts. The current collecting lug part is formed with an elongated protrusion extending in a direction away from the current collecting portion. The elongated protrusion continuously extends in a direction toward the current collecting portion of the plate from inside the strap.
    Type: Application
    Filed: March 14, 2011
    Publication date: March 15, 2012
    Inventors: Hiroki TSUJI, Masatoshi Miyatsuka, Kazuya Sasaki, Naoki Tsuji, Kenichi Maeda, Yoshifumi Yamada