Mitsubishi Electric Corporation

Oriental Yeast Co., Ltd.

Tadashi Yokoyama

Yuzuru Kobayashi

Toshiyuki Oonishi

Atsuya Iwamoto

Seisaku Imagawa

Minoru Ohashi

Kenichi Numazawa

Toshio Kaizuka

Tomoo Kikuchi

Junichi Naito

A heat dissipation heat sink having a press-fit hole whose inner peripheral surface is a cast skin surface is included; the heat dissipation heat sink is sandwiched by the press-fit head and the insertion guide by aligning the axis of a rectifying element in an insertion guide with the axis of the press-fit hole and making the press-fit head face the heat dissipation heat sink; a protrusion portion of a load receiving jig is made to face the rectifying element in the insertion guide; and the rectifying element is press-fitted into the press-fit hole of the heat dissipation heat sink by pressing the periphery of the press-fit hole of the heat dissipation heat sink () by the press-fit head and receiving a load applied to the rectifying element by the protrusion portion of the load receiving jig.

Method for manufacturing rectifier and rectifier

A rotor having N and S poles is rotatively supported through bearings from the lower end of an electrode to be immersed in a water sample in which dissolved oxygen is measured. A rotor driving means is disposed adjacent to the rotor, the means generally comprising a magnet which is so constructed that the N and S poles thereof alternately approach the rotor. The rotor follows the rotation of the rotor driving means to rotate in and stir the water sample.

Stirring device for automatically measuring dissolved oxygen

Growing community of inventors

Tokyo, Japan

Tadashi Yokoyama