Sumitomo Bakelite Company Limited

Promerus, Lcc

Keizo Takahama

Tetsuya Mori

Koji Choki

Kei Watanabe

Mutsuhiro Matsuyama

Makoto Fujiwara

Larry Funderburk Rhodes

Andrew Bell

Ramakrishna Ravikiran

Dino Amoroso

Hirotaka Nonaka

Yumiko Otake

Hiroshi Owari

Yoji Shirato

Kenji Miyao

Tatsuhiro Yoshida

Syusaku Okamyo

A photosensitive resin composition which includes (A) a cyclic olefin; (B) at least either one of a monomer having a cyclic ether group and an oligomer having a cyclic ether group, having a refractive index different from that of the component (A); and (C) a photoacid generator, is provided.

Photosensitive resin composition, optical waveguide film, film for forming optical waveguide, optical interconnect, opto-electric hybrid circuit board, electronic device, and a method of manufacturing an optical waveguide film

Embodiments in accordance with the present invention provide waveguide structures and methods of forming such structures where core and laterally adjacent cladding regions are defined. Some embodiments of the present invention provide waveguide structures where core regions are collectively surrounded by laterally adjacent cladding regions and cladding layers and methods of forming such structures.

Optical waveguides and methods thereof

A substrate on which an optical element is mounted is provided, including: an optical element; an optical circuit substrate which is formed by an optical waveguide layer having a core portion and cladding portions; and an electrical circuit substrate on which is provided a mounting portion that is used for mounting the optical element, wherein the optical element is mounted on the electrical circuit substrate via the optical circuit substrate and wherein the optical circuit substrate has an optical element mounted thereon and is provided with a receptor structure having a conductive portion that conducts electricity between an electrode of the optical element and an electrode of the electrical circuit substrate.

Substrate for mounting an optical element, optical circuit substrate, and substrate on which an optical element is mounted

An optical waveguide structure has excellent heat resistance and a low water absorbing property and can be manufactured with a low material cost. Such an optical waveguide structure includes: an optical waveguide having two surfaces, a core layer including core portions and cladding portions each having a refractive index lower than that of each of the core portions, the core layer having two surfaces, and cladding layers provided so as to make contact with the two surfaces of the core layer and having a refractive index lower than that of each of the core portions; and conductor layers provided on the two surfaces of the optical waveguide. In the optical waveguide structure, each of the cladding layers is formed of a norbornene-based polymer as a major component thereof. Further, it is preferred that the norbornene-based polymer is composed of molecules each represented by the following formula 1 as a major component thereof: 

Light guide and light guide structure

A heat resistant resin composition comprising, as the main components,

Heat resistant resin composition, heat resistant film adhesive and

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Chigasaki, Japan

Keizo Takahama