Tomoegawa Co., Ltd.

Yoshino Gypsum Co., Ltd.

Tomoki Furue

Masayoshi Suzuki

Ken Sukegawa

Kyoichi Sasaki

Nobuhiro Hashimoto

Takuji Yamashita

Hideki Moriuchi

Tadao Matsunaga

Wataru Ohuchi

Hiroshi Kitahara

Makoto Gotou

Masanori Takahata

Masanori Morinaga

Shun Tsukamoto

Kiyoshi Hosoi

Yuuya Ishizaka

Construction joint material with adhesive

A thermoplastic fiber sheet includes at least cellulosic fibers and thermoplastic resin fibers having a softening temperature of 100 to 140&#xb0; C. A weight ratio of the cellulosic fibers to the thermoplastic resin fibers (the cellulosic fibers: the thermoplastic resin fibers) is 4:6 to 2:8, and porosity is 20 to 70%.

Thermoplastic fiber sheet

A rubber member optically connects (a) an optical transmission medium or an optical component and (b) another optical transmission medium or another optical component by intervening between the (a) and the (b). An adhesive connecting member comprises a rubber member having a refractive index of 1.35 to 1.55 and an adhesive having a refractive index of 1.35 to 1.55.

Rubber member, adhesive connecting member, and optical connection structure

An adhesive connecting member and an optical connecting structure using the member, in which connection loss can be reduced and handling is facilitated, are provided. The adhesive connecting member optically connects an optical transmission medium and another optical transmission medium or an optical part by being intervened therebetween, and the member has a strongly adhesive face contacting the optical transmission medium and a weakly adhesive face contacting the other optical transmission medium or optical part. In addition, by this adhesive connecting member, the optical transmission medium and the other transmission medium or optical part can be optically connected.

Adhesive connecting member, optical connecting structure used therewith, and jig for attaching adhesive connecting member

An optical fiber coil and a production method therefor reduce the likelihood of optical transmission loss due to stress or temperature changes at low cost. Plural single optical fibers are arranged in parallel and are integrally covered with a covering portion so as to form an optical fiber ribbon, and the optical fiber ribbon is wound into a coiled state.

Production method for optical fiber coil

The present invention provides a process for producing an optical connector, an apparatus for producing the same, and a process for forming a polymer coating film on an end face of a fibrous dielectric, which can dispose a refractive index adjuster only onto an end face of an optical transmitting medium with excellent reproducibility. Such a process includes bringing an end surface of the optical transmitting medium close to an end face of a liquid refractive index adjuster, while charging at least one of the optical transmitting medium and the liquid refractive index adjuster, thereby adhering the liquid refractive index adjuster to the end face of the optical transmitting medium, and thereafter solidifying the adhered liquid refractive index adjuster to obtain the refractive index adjuster.

Process for producing optical connector, apparatus for producing the same, and process for forming polymer coating

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Shizuoka, Japan

Tomoki Furue