Nec Corporation

Other

Priority Co., Ltd.

Tsugio Yamazaki

Kunio Matsumoto

A magnetic polishing machine includes a container which accommodates a polishing target and a plurality of polishing pieces, a plurality of rotation plates which are rotatably disposed below the container while a magnet is attached to the rotation plate, and a first rotation mechanism which rotates each rotation plate about a rotation axis of the rotation plate. The adjacent rotation plates are disposed at a position in which rotation areas thereof partially overlap each other.

Magnetic polishing machine

An array antenna for use in, e.g., a radar includes a plurality of pairs of vertical polarization antenna elements and horizontal polarization antenna elements. A particular transmission/receipt module is connected to each pair of vertical and horizontal polarization antenna elements. A beam controller forms a transmission/receipt digital beam while a local signal generator controls a transmission/receipt frequency. The beam controller is connected to the transmission/receipt modules via a data bus and I/O (Input/Output) sections included in the modules.

Array antenna

In a dual band array antenna apparatus having a plurality of first phased array antenna elements for a low frequency and a plurality of second phased array antenna elements for a high frequency, one transceiver module is provided for a number of the phased array first antenna elements, and microstrip lines of the first phased array antenna elements are changed to obtain a desired phase distribution at the first phased array antenna elements. Also, one transceiver module is provided for each of the second phased array antenna elements.

Growing community of inventors

Tokyo, Japan

Tsugio Yamazaki