Murata Manufacturing Co., Ltd.

Kao Corporation

Okamoto Corporation

Masayuki Tsuji

Kenichiro Takumi

Takafumi Inoue

Ryosuke Ebina

Eiji Taguchi

Masamichi Ando

Kenji Ishiguro

Shunsuke Kanematsu

Daiji Tamakura

Tsuyoshi Soeda

Hirokazu Hayashi

Takashi Tateishi

Yutaka Murai

Kouichi Hosoya

Osamu Onishi

Takako Nishiura

A composite fiber having a core sheath-structure that includes a core portion having an electrically conductive material, and a sheath portion having a ceramic component covering the core portion. The composite fiber is constructed such that, when the core portion is connected to a ground, the sheath portion exhibits one of a positive surface potential or a negative surface potential over an entire surface of the sheath portion.

Composite fiber

A cylindrical structure including a first cloth including a piezoelectric thread that generates an electric potential from external energy, a second cloth including a piezoelectric thread that generates an electric potential from external energy, and a connection portion connecting the first cloth and the second cloth, wherein the first cloth and the second cloth forms a side face of the cylindrical structure.

Cylindrical structure

A knitted fabric structure that includes a piezoelectric yarn having a piezoelectric material that produces a surface potential by input of an external force from an outside of the piezoelectric yarn; and an elastic yarn having stretchability knitted together with the piezoelectric yarn, wherein the piezoelectric yarn has a mixing ratio of 5% or more based on a whole of the knitted fabric structure.

Knitted fabric structure, socks, arm cover, leggings, and shirt

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 twisted yarn including a first fiber and a second fiber having a shorter length than the first fiber and twisted together with the first fiber, wherein at least one of the first fiber and the second fiber includes a piezoelectric fiber that generates a charge by application of external energy.

Antibacterial twisted yarn, and antibacterial yarn and antibacterial cloth including antibacterial twisted yarns

Growing community of inventors

Nagaokakyo, Japan

Masayuki Tsuji