The Furukawa Electric Co., Ltd.

Kabushiki Kaisha Toshiba

Soartec Corporation

Toshiaki Sakai

Tomomichi Yasuoka

Takashi Shigematsu

Takashi Kayahara

Ryosuke Nishii

Kazuyuki Umeno

Daeyoul Yoon

Jun Terada

Mamoru Hayamizu

Sayo Suga

Nobuyasu Matsumoto

Masamitsu Kaneko

Fumika Nishino

Ichiro Sano

A method of welding a workpiece by using a laser is provided which includes disposing a workpiece in a region to be irradiated with laser light from a laser oscillator; and irradiating the workpiece with the laser light from the laser oscillator such that an irradiated portion of the workpiece is melted and welded while sweeping the laser light over the workpiece by relatively moving the laser light and the workpiece. The laser light is formed of a main beam and an auxiliary beam, at least part of the auxiliary beam being disposed anteriorly in a sweep direction, and the main beam has a power density equal to or greater than a power density of the auxiliary beam.

Welding method and welding apparatus

A welding method includes: irradiating a plurality of metal foils stacked on a first surface of a metal member in a first direction with laser light to weld the metal member and the plurality of metal foils to each other, the laser light including first laser light having a wavelength of 800 [nm] or more and 1200 [nm] or less and second laser light having a wavelength of 550 [nm] or less, a second surface of a metal foil farthest from the metal member in the first direction among the plurality of metal foils, on a side opposite to the metal member, being irradiated with the laser light.

Welding method, welding device, metal stacked body, electrical component, and electrical product

A recording apparatus having a printing head, comprises a support having heating elements, a film being contacted the support to face the elements and having nozzle holes on a region facing the elements, an ink holder, arranged near the holes and on one of opposing surfaces of the film and the support, for holding externally supplied ink, and a vibrator for vibrating the support to supply ink to the holes from the ink holder through a gap between the opposing surfaces of the film and the support. In another embodiment a drive unit may reciprocally move the nozzle member in the alignment direction. In a further embodiment the drive unit may reciprocally move the film and spacer relative to the support and the ink supplier.

Recording apparatus having printing head

Growing community of inventors

Tokyo, Japan

Toshiaki Sakai