Patents by Inventor Takamasa Kajiwara

Takamasa Kajiwara 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).

  • Battery and method for producing the battery
    Patent number: 9608239
    Abstract: A battery includes an external terminal member and an insulating member on an outer surface of a lid member so that an interval between the insulating member and the lid member is smaller in a long side of the lid member than in a short side. A weld mark is formed over the entire circumference of the lid member to extend across the outer surface of the lid member and an open end face of the case body. The weld mark not only extends across the outer surface of the lid member and the open end face of the case body but also reaches an outer side surface of the case body in a zone of the long side of the lid member facing the insulating member, but does not reach the outer side surface of the case body in a zone except the former zone.
    Type: Grant
    Filed: March 29, 2013
    Date of Patent: March 28, 2017
    Assignees: TOYOTA JIDOSHA KABUSHIKI KAISHA, PRIMEARTH EV ENERGY CO., LTD.
    Inventors: Hiroyuki Nakayama, Satoshi Suzuki, Takashi Harayama, Youichi Naruse, Kaoru Kajita, Toshiya Okada, Takamasa Kajiwara
  • BATTERY AND METHOD FOR PRODUCING THE BATTERY
    Publication number: 20150118546
    Abstract: A battery includes an external terminal member and an insulating member on an outer surface of a lid member so that an interval between the insulating member and the lid member is smaller in a long side of the lid member than in a short side. A weld mark is formed over the entire circumference of the lid member to extend across the outer surface of the lid member and an open end face of the case body. The weld mark not only extends across the outer surface of the lid member and the open end face of the case body but also reaches an outer side surface of the case body in a zone of the long side of the lid member facing the insulating member, but does not reach the outer side surface of the case body in a zone except the former zone.
    Type: Application
    Filed: March 29, 2013
    Publication date: April 30, 2015
    Inventors: Hiroyuki Nakayama, Satoshi Suzuki, Takashi Harayama, Youichi Naruse, Kaoru Kajita, Toshiya Okada, Takamasa Kajiwara