Hitachi, Ltd.

Hitachi Service Engineering Co., Ltd.

Kiyoshi Chiba

Dai Watanabe

Yoichi Sugita

Takuya Fukuda

Shigeru Takahashi

Naohiro Momma

Tadasi Sonobe

Kazuo Suzuki

Yasuhiro Mochizuki

Yasushi Yokosuka

Noboru Suzuki

Takatoshi Miyazaki

In order to propose a method of promptly judging movement of a train between block sections with a minimum number of transponders, an on-ground train control part for controlling operation of a train; an on-ground communication means capable of performing communication of information by coming within a specified range; and a sending-and-receiving part capable of sending the information received by the on-ground communication device to the on-ground train control part and receiving the information sent from the on-ground train control part, are provided, thereby, a position of presence of train is grasped by receiving a speed of the train using the on-ground communication means when the on-train communication means attached to the train comes near.

Signal safety method, signal safety apparatus and signal safety system

Train control method and apparatus

A plasma treatment apparatus for forming a thin film on a substrate in a vacuum vessel includes a magnetic field generator which can be positioned inside or outside the vacuum vessel, and a microwave source. The magnetic field strength is controllable such that an electron cyclotron resonance (ECR) area is defined near the substrate. The magnetic field generator can be arranged so that plasma and reactive gas introduction ports are on the microwave introduction side of the ECR area and the substrate is on the opposite side of the ECR area. Alternatively, a gas introduction port can be positioned such that reactive gas is introduced into the ECR area or onto the substrate.

Apparatus for plasma treatment using electron cyclotron resonance

Growing community of inventors

Hitachinaka, Japan

Kiyoshi Chiba