Fujitsu Corporation

Nkk Corporation

Eiji Maeda

Kaoru Sato

Hiroyuki Matsuo

Tetsuo Yamamoto

Shota Mori

Kunikazu Tomita

Tsuyoshi Shiozaki

Akihiro Yasuo

Mitsuya Kawashita

Jinichi Yoshizawa

Takeshi Sasaki

Tatsuya Oku

Yoshimasa Funakawa

Tsuguo Okada

Hiroshi Nakata

Takanobu Saito

Minoru Suwa

Yasuhiro Murao

Jinlin Zhang

Akira Yamamori

Masao Maeda

Yoshinori Okuda

An optical amplification device includes: an optical module that outputs an amplified light; and a controller that makes the optical module emit a light when an emission command is input into the controller, wherein the controller cancels an inputting of the emission command until a predetermined time passes, when a protection for forbidding a light emission of the optical module is canceled.

Optical amplification device and method of controlling optical module

A device including a line interface for additionally installing a line is installed in a terminal repeater device which takes a work and protection redundancy configuration based on a criterion such as SONET, SDH, or the like. Within the device additionally installed, the clocks supplied from work and protection devices are each compared. The respective clocks are variably delayed based on the comparison result so as to allow the device additionally installed to perform clock phase control as to the work and protection lines.

Transmitting apparatus

In multi-connections, a message writing apparatus is provided. This message writing apparatus () comprises a path recognizing section (), a received message assembling section (), a receive control section (), an arbitrating section () and an external memory control section (). When a received ATM cell is written/readout in/from a receiving buffer, it is written/read out in a memory area corresponding to each path, which enables the processing of AAL5 messages from a plurality of paths and improves the transfer processing capability, thereby leading to realizing a shortening of the data transfer time.

Message writing apparatus, message writing method, message readout apparatus, message readout method, memory address control circuit for writing of variable-length message and memory address control circuit for readout of variable-length message

The present invention relates to a high strength hot rolled steel sheet containing 0.15% or less C, 0.02 to 0.35% Ti, and 0.05 to 0.7% Mo by weight percentage and consisting essentially of a matrix of ferrite structure single phase and fine precipitates with a grain size of smaller than 10 nm dispersed in the matrix, for example, a high strength hot rolled steel sheet which consists essentially of 0.06% or less C, 0.5% or less Si, 0.5 to 2.0% Mn, 0.06% or less P, 0.005% or less S, 0.1% or less Al, 0.006% or less N, 0.02 to 0.10% Ti, 0.05 to 0.6% Mo by weight percentage, and the balance being Fe, wherein fine precipitates with a grain size of smaller than 10 nm are dispersed in a matrix of ferrite structure single phase at a number per unit volume of 5&times;10 /&mgr;m or higher. This steel sheet, which has tensile strength of not lower than 550 MPa, high elongation and excellent stretch flangeability, is suitable for intricately shaped automotive chassis parts such as a suspension arm.

High strength hot rolled steel sheet

Growing community of inventors

Yokohama, Japan

Eiji Maeda