Murata Manufacturing Co., Ltd.

Kao Corporation

Okamoto Corporation

Daiji Tamakura

Kenichiro Takumi

Takafumi Inoue

Masamichi Ando

Kenichi Mori

Kenji Ishiguro

Masayuki Tsuji

Osamu Onishi

Yutaka Murai

Kouichi Hosoya

A piezoelectric fiber composite that includes a substrate having a first expansion and contraction rate, a piezoelectric fiber assembly having piezoelectric fibers that generate electrical charges upon application of external energy and has a second expansion and contraction rate different from the first expansion and contraction rate of the substrate, and a joint portion that joins the substrate and the piezoelectric fiber assembly.

Piezoelectric fiber composite having separate joint portions and piezoelectric clothing containing the same

An antibacterial device that includes a substrate, a first electrode on the substrate, a second electrode on the substrate, and a protective layer covering the first electrode and the second electrode and having a first surface opposing of the substrate and a second surface opposite the first surface. Further, the first electrode and the second electrode are arranged such that the protective layer has an electric field strength on the second surface thereof of 150 kV/m or more when a voltage is applied to the first electrode or the second electrode.

Antibacterial device and electrical apparatus

An antibacterial yarn that includes a core yarn including a functional polymer that generates a charge by external energy and a first sheath yarn higher in hygroscopicity than the core yarn, the first sheath yarn covering at least a part of a periphery of the core yarn across an axial direction of the core yarn.

Antibacterial yarn and antibacterial fabric

An antibacterial mask that includes a filter portion having a first principal surface and a second principal surface opposite the first principal surface, the filter portion including a plurality of first piezoelectric yarns that generate at least a first charge by stretching.

Filter and air-conditioning device

A filter that includes a plurality of fibers arranged to form a first principal surface and a second principal surface opposite the first principal surface, and a plurality of first piezoelectric fibers that generate negative charges by stretching are arranged at least on a side of the first principal surface.

Growing community of inventors

Nagaokakyo, Japan

Daiji Tamakura