Hitachi, Ltd.

Mituo Nakamura

Kazuo Kobayashi

Takeshi Abe

Tetsuro Minemura

Masato Shibayama

Takao Funamoto

Isao Ikuta

Hisashi Ando

Hiroshi Asabuki

Masahiko Sakamoto

Teruhiro Takizawa

Takashi Haramaki

Daijiro Ida

Atuyuki Gotou

Tutomu Takahashi

Yosimi Katou

Masao Tuji

Takeshi Yamagiwa

Seijiro Asano

Hiromoto Ashiwara

A superconducting magnetic field generating apparatus, and coil, a superconducting wire, a method of producing a coil and a method of connecting a superconducting wire which are suitable for such a superconducting magnetic field generating apparatus are disclosed. The superconducting magnetic field generating apparatus has a coil of a wound superconducting wire which is composed of superconducting wires with the end portions thereof connected with each other. Each of the superconducting wires is composed of a plurality of superconducting material wires embedded in a stabilizing member. The group of superconducting material wires is embedded at the connecting portion in a state in which the superconducting material wires are densely gathered to the central portion of the stabilizing member and the superconducting material wires are directly in contact with each other. The stabilizing member exists in the central portion of the assembly of the superconducting material wires and the stabilizing members are closely bonded to the superconducting material wires.

Superconducting magnetic field generating apparatus and method of

An alloy having variable spectral reflectance having a composition which essentially consists of Ag, 30 to 46 wt % of Zn and 0.1 to 15 wt % in total of at least one element selected from elements of groups Ia, IIa, Iva, Va, VIa, VIIa, VIII, Ib to Vb and rare earth elements, the alloy being able to have different crystal structures, one of which is obtained when it is held in solid state at a first temperature above the room temperature, another of which is obtained when the same is held in the solid state at a second temperture lower than said first temperature. Disclosed also is an information recording medium made of the alloy. The alloy exhibits a reversible change in color or spectral reflectance as a result of change between two crystal phases, so that the information recording medium produced from this alloy can be used effectively as the medium for recording, regeneration and erasion of the informations.

Alloy having variable spectral reflectance and information recording

Industrial robot

A casing of a blower of the improved construction easy to assemble and low in noise level, and a ventilating fan utilizing such casing. The casing of the blower includes a frame, and spiral cases arranged in the frame and having suitable elasticity with respect to the frame, the spiral cases having external dimensions slightly larger than the internal dimensions of the frame in natural condition, so that the spiral cases can be securedly held in place in the frame by the elasticity of the spiral cases themselves.

Casing of blower and ventilating fan utilizing the casing

Growing community of inventors

Takahagi, Japan

Mituo Nakamura