Jcu Corporation

Yazaki Corporation

Hiroki Yasuda

Hiroshi Ishizuka

Kenichi Nishikawa

Ryoichi Kimizuka

Takamitsu Aiba

Tomohiro Wakabayashi

Daisuke Sadohara

Yasutake Nemichi

Aya Shimomura

Hisayuki Toda

Yumiko Shimizu

Tatsuji Takasu

Shinsuke Takagi

Takuro Sato

Mikiko Kosaka

Christopher Ernest John Cordonier

Yasuhiro Ogo

Yuto Oyama

Yu Tonooka

An optical transmitter includes: a light emitting part that emits light; and a lens that condenses the light emitted from the light emitting part. Further, the optical transmitter includes a multimode optical fiber that is optically coupled to the lens at one end and on which the light that is condensed by the lens is incident. Furthermore, the coefficient of the correlation between the distribution of the intensity of the light in the light emitting part and the distribution of the intensity of return light to the light emitting part, when the light is emitted from the light emitting part, is set to 0.5 or less.

Optical transmitter and optical transmission system

An object of the present invention is to provide a silicon oligomer having a novel function that has not been achieved by a conventional condensation product of water and a tetraalkoxysilane. Provided are a silicon oligomer represented by the following formula (I) and a production method therefor:  

Silicon oligomer and production method therefor

Provided is a copper plating technique that enables the filling of high aspect-ratio via-holes and through-holes in semiconductor substrates such as silicon substrates, organic material substrates or ceramic substrates. The disclosed technique involves a tertiary amine compound, which is obtained by reacting a heterocyclic compound with the epoxy group of a glycidyl ether group of a compound that has three or more glycidyl ether groups, and a quaternary amine compound thereof, as well as a copper plating additive, a copper plating bath, and a copper plating method employing the compounds.

Copper plating bath containing a tertiary amine compound and use thereof

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Kanagawa, Japan

Hiroki Yasuda