Panasonic Corporation

Panasonic Intellectual Property Management Co., Ltd.

Matsushita Electric Works, Ltd.

General Company Limited

Kazuaki Nishimura

Yoshimichi Kajihara

Shinya Mizone

Takashi Sabato

Kazuyoshi Mimura

Kazuhiro Nobutoki

Tetsushi Itano

Makoto Kurozawa

Seiji Takagi

Hiroki Sano

Yohei Jin

Ryouichi Uemoto

Hiroyuki Kita

Takeru Maekawa

Kenji Endou

Hiroshi Shinkoda

Tetsuya Koyanagi

Shunsuke Egashira

A coil includes: a strand-wound body configured with stacked n turns of a wound strand that is made of a conductor and has a quadrangular cross-section, where n is a natural number; and an insulating resin covering a surface of the strand-wound body. An i-th turn, where i is an integer and 1≤i≤n, has a quadrangular ring shape having four side portions, and in the i-th turn, the insulating resin covers a surface of each of the four side portions. In the first to n-th turns, the insulating resin is continuously and integrally formed.

Coil, stator comprising same, and motor

A speaker diaphragm includes an edge formed from an elastomer, and a diaphragm body that is to be joined to the edge. A joint between the edge and the diaphragm body includes a melting portion between the edge and the diaphragm body.

Speaker diaphragm, speaker, speaker diaphragm manufacturing method, electronic device, and mobile body apparatus

A loudspeaker diaphragm includes resin and hollow glass member particles contained in the resin. Further, a loudspeaker includes the above-described loudspeaker diaphragm, a magnetic circuit, a frame connected to the magnetic circuit, and a voice coil body having one end connected to the loudspeaker diaphragm and the other end disposed inside a magnetic gap in the magnetic circuit.

Loudspeaker diaphragm, loudspeaker, and production method for loudspeaker diaphragm

A loudspeaker diaphragm contains polylactic acid, and bamboo charcoal mixed in the polylactic acid. The diaphragm does not affect environment and provides a loudspeaker with high sound quality.

Diaphragm for speaker, speaker using the diaphragm, and system using the speaker

A speaker diaphragm containing resin and carbonized bamboo material with a large degree of flexibility in setting physical properties, moisture-proof reliability and strength secured, superior appearance, and productivity and dimensional stability increased, which allows making characteristics and sound highly accurately, and designing with great originality.

Diaphragm for speaker, speaker using the diaphragm, electronic device using the speaker, and speaker-mounted device

A speaker diaphragm is configured by a compound mixed with resin and bamboo fiber. The diaphragm satisfying the advantage of the bamboo fiber of high sound quality and a large degree of freedom in the setting of the characteristic value of the diaphragm and the advantage of the diaphragm made of a resin with improved humidity resistance reliability and strength, excellent external appearance, and enhanced productivity and dimension stability is obtained.

Diaphragm for speaker, frame for speaker, dust cap for speaker, speaker and apparatus using them, and method for manufacturing component for speaker

A permanent magnet is stood vertically at a position shifted on way off the central position of a central piece for a U-shaped iron core An armature has a projection as a fulcrum at an off-centered position so that the fulcrum is placed on an upper end face of the permanent magnet Also, a coil is wounded around a pole piece of the iron core on a near side to the central position.

Electromagnet driving apparatus and electromagnetic relay

Disclosed is an ink acceptor comprising a sheet-like substrate and an ink accepting layer provided on at least one surface of the substrate, the ink accepting layer containing at least a cationic acrylic resin and an acrylic resin having film-forming properties. Such an ink acceptor is capable of rapidly fixing ink and obtaining a print having excellent water resistance, and is suitably used for printing by an ink-jet printing system.

Ink acceptor and recording method using the same

A miniature electromagnetic relay is capable of increasing the coil packing density, yet assuring electrical insulation of the coil from a core of the electromagnet. The relay includes a pair of movable and fixed contacts, an armature carrying the movable contact, and an electromagnet block having an excitation coil which moves the armature for closing and opening the contacts upon being energized. The electromagnet block includes a generally U-shaped core with a center core and a pair of yokes extending from opposite ends of the center core, flanges of dielectric material molded respectively around portions of the yokes, and a dielectric tape fitted around the center core over substantially the entire length of the center core to receive therearound the excitation coil in an electrically insulating relation from the core. Each of the flanges is formed integrally with an inward sleeve which extends over a limited length along the center core in such a relation that the dielectric tape overlaps the inward sleeves at opposite width ends of the tape. Thus, the coil can be wound over the substantially full length of the core and be successfully insulated from the core over the full length thereof without requiring additional separate member.

Growing community of inventors

Mie, Japan

Kazuaki Nishimura