Casio Computer Co., Ltd.

Hitachi Metals, Ltd.

Hitachi Ferrite Electronics, Ltd.

Takayuki Ishimoto

Takashi Sano

Masahiro Mita

Soh Kimura

Hirokazu Araki

Narutoshi Minami

Tadashi Kotani

An antenna includes an elongate laminated core, a core case having an electrical insulating property and housing the core, and a coil wound around the core between both end portions of the core through the case. The core has a first and second groups, each including thin plates of amorphous soft magnetic alloy laminated with each other, and is configured by stacking the first and second groups one another. Each of the thin plates of the core includes flanges provided at both end portions thereof, and a coil wound portion between the both end portions, and the case includes projections, which push the both end portions of the thin plates of the second group to separate from the both end portions of the thin plates of the first group in the laminating direction of the thin plates of the core while the core is housed in the case.

Antenna, watch provided with the antenna, and method of manufacturing the antenna

Growing community of inventors

Tottori, Japan

Takayuki Ishimoto