Mitsumi Electric Company Ltd.

Youichi Itagaki

Norio Hasegawa

Akira Shiga

Shinichi Asano

Yoshihiro Ishikawa

Disclosed is an optical communication module including a module base in an approximately rectangular shape in which the light path member is introduce from one end surface in a longitudinal direction, a cover member provided at an upper portion of the module base and a plurality of pairs of conductive members in which each of the conductive members constituting a pair are respectively disposed at both outside surfaces of the module base and which are electrically connected to the light path member, and a concave portion is formed at an upper surface of the module base, the cover member is formed so as to cover an opening of the concave portion, and the conductive members are formed so as to extend for equal lengths toward an upper surface side and a lower surface side of the module base from a center line of a height direction of the outside surfaces.

Optical communication module

A waveguide device that guides light through a core part formed in a cladding part is disclosed. The waveguide device includes a waveguide part formed in the cladding part so as to have the same refractive index as the refractive index of the core part so that the waveguide part communicates with the core part, and a reflective part configured to perform at least one of reflecting the light guided by the core part toward the waveguide part and reflecting light from the waveguide part toward a direction in which the light is guided by the core part.

Waveguide device

A chemical compound capable of emitting visible light and having electrical conductivity comprises a main chain that consists of at least one substituted or non-substituted 2,5-thiophenediyl group and at least one substituted or non-substituted 9-carbazolyl group that bonds to at least one of two terminals of the main chain. The chemical compound is used in a luminescent material, an EL device that includes a luminous layer, and a display apparatus that includes a plurality of EL devices.

Chemical compound capable of emitting visible light, and luminescent material, electro-luminescent device, and display apparatus that contain the chemical compound

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Atsugi, Japan

Youichi Itagaki