Nidec Sankyo Corporation

Kabushiki Kaisha Sankyo Seiki Seisakusho

Sankyo Seiki Mfg. Co., Ltd

Minebea Mitsumi Inc.

Shinichi Niwa

Toshiaki Asakawa

Masayuki Ishikawa

Hiromitsu Takei

Shinya Toda

Akira Mori

Shintaro Takata

Yuta Aizawa

Masayoshi Hara

Yukio Okada

Masao Takemura

An optical device may include a movable body holding a lens, a fixed body movably holding the movable body, a drive magnet and a drive coil for relatively moving the movable body with respect to the fixed body, and a metal member fixed to the drive magnet. The drive magnet is fixed to one of the movable body and the fixed body and the drive coil is fixed to the other of the movable body and the fixed body. A nickel plating layer containing at least nickel is formed on a surface of the drive magnet and a surface of the metal member, and the drive magnet and the metal member are joined to each other by a joining layer which is made of tin-based metal containing at least tin and is disposed between the drive magnet and the metal member.

Optical device and manufacturing method therefor

A spindle motor comprises a rotor, which is rotatably supported by a stator, a rotor yoke, which is made up of a magnet fixed onto the rotor and a drive magnet, which is made of a bonded magnet which is adhesively fixed onto the rotor. A first metallic layer is formed onto a surface on the rotor yoke facing the drive magnet. A second metallic layer is formed on a surface of the drive magnet facing the rotor yoke.

Spindle motor and method for manufacturing same

A frequency generator includes a circuit board having one surface on which a generating coil pattern and a wiring pattern are printed in stacked relationship via an insulating layer. In a preferred embodiment, the coil is pointed over the wiring pattern.

Frequency generator with superimposed generation coil

Growing community of inventors

Nagano, Japan

Shinichi Niwa