Panasonic Corporation

Panasonic Intellectual Property Management Co., Ltd.

Matsushita Electric Works, Ltd.

Yoshiharu Nakamura

Tomoyuki Nakano

Akihiko Watanabe

Kiyomi Kawamura

Takeo Shirai

Hitomichi Takano

Hiroshi Ogasawara

Kazuhiko Kinutani

Mizuto Ida

Hiroki Sakaguchi

Shoichi Koyama

Toshikiyo Kawamura

Hideyuki Taniguchi

A coil is configured with stacked n turns (where n is an integer of 2 or more) of spirally wound conductive wire having a rectangular cross-section. A k-th turn (where k is an integer and 1≤k≤n) of the coil has at least a straight portion and a corner portion extending from an end part of the straight portion. On an outer peripheral surface of the corner portion, there are formed at least a first bent portion bent toward an inner peripheral side and a second bent portion bent toward the outer peripheral side, and curvature Cof the first bent portion is different from curvature Cof second bent portion.

Coil, and stator, rotor, and motor equipped with same, and manufacturing method for coil

The organic electroluminescent device includes: a first electrode of conductive and light transmissive material; a light emitting layer of organic material on the first electrode; a second electrode of conductive material on the layer; first and second terminal parts placed on first and second ends of the layer in a first direction crossing a thickness direction of the layer and coupled to the first and second electrodes, respectively; and an auxiliary electrode which is on the first electrode and beside the layer in a second direction crossing the thickness direction and the first direction and coupled to the first electrode, and has an elongated shape extending in the first direction, and made of material having specific resistance smaller than the first electrode, and includes portions with different thicknesses such that sheet resistance is increased with an increase in distance from the first terminal part in a lengthwise direction thereof.

Organic electroluminescence element

A transformer has a bar-shaped ferrite core, an inner winding wound directly around the ferrite core, an outer winding wound over the inner winding, and a dielectric shield surrounding the outer winding. The outer winding has its circumference covered by a dielectric sheath, and has an intermediate winding portion between its winding start end and its winding stop end. The dielectric sheath in the intermediate winding portion is spaced from each other along the axis of the ferrite core to leave thereat a gap which is filled with a molding material. By provision of the gap between the dielectric sheath of the outer winding, the molding material forming the dielectric shield can be easy to flow in between the dielectric sheath of the outer winding and the inner winding, avoiding the void from appearing between the inner and outer windings for attaining stable electrical characteristic.

Transformer

Growing community of inventors

Osaka, Japan

Yoshiharu Nakamura