公开(公告)号：US11489239B2

公开(公告)日：2022-11-01

申请号：US16656121

申请日：2019-10-17

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Koji Funami ,  Izuru Nakai ,  Kazumichi Shimizu ,  Hiroshi Takasaki

IPC: H01M50/538 ,  H01M10/04

Abstract: A cylindrical battery includes an electrode unit configured as a roll of a first electrode plate and a second electrode plate with a separator in between. The first electrode plate is an electrode plate to which one end of a first electrode tab and one end of a second electrode tab are connected, and the second electrode plate has the opposite polarity from the first electrode plate. Additionally, a case houses the electrode unit and a sealing member seals an opening rim of the case. The first electrode tab and the second electrode tab are disposed to project out from the first electrode plate at opposite ends of a winding axis of the first electrode plate. The first electrode tab contacts at a bottom portion of the case and the second electrode tab is welded at the opening rim side opposite the bottom portion of the case.

公开(公告)号：US12157180B2

公开(公告)日：2024-12-03

申请号：US17494183

申请日：2021-10-05

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Koji Funami ,  Kazuki Fujiwara ,  Izuru Nakai

IPC: B23K26/046 ,  B23K11/36 ,  B23K26/08 ,  B23K26/38 ,  B23K26/70 ,  B23K37/04

Abstract: An evaluation method for evaluating laser machining in which irradiation region of a laser beam is moved relative to object to perform machining of object, includes a measurement step and an evaluation step. In the measurement step, a change in an intensity of light according to a movement of measurement region is measured by moving measurement region for measuring the intensity of light, relative to object. In the evaluation step, an evaluation of the laser machining is performed based on the change in the intensity of light according to the movement of measurement region. In the measurement step, measurement region is moved relative to object so that movement path of measurement region has a plurality of intersections with movement path of irradiation region.

公开(公告)号：US11938561B2

公开(公告)日：2024-03-26

申请号：US17232412

申请日：2021-04-16

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Izuru Nakai ,  Takaaki Kassai ,  Takayuki Yoshida

IPC: B23K26/0622 ,  B23K26/064 ,  B23K26/067

CPC classification number: B23K26/0622 ,  B23K26/064 ,  B23K26/067

Abstract: A laser processing apparatus includes a light source configured to emit laser light; a power supply configured to supply a current to the light source; a deflection unit on an optical path of the laser light and including an optical element configured to change an amount of transmission of the laser light to deflect at least a part of the laser light; an optical separation unit on the optical path of the laser light and being configured to shield higher-order light included in the laser light and deflected by the optical element in the deflection unit, and transmit zero-order light that is included in the laser light and passes through the deflection unit; and a signal synchronization unit configured to control the power supply to selectively turn the current on or off in synchronization with a timing at which the higher-order light is deflected by the optical element.