Mitsubishi Chemical Corporation

Panasonic Intellectual Property Management Co., Ltd.

Toru Nishimura

Hiroshi Takimoto

Hideo Sano

Naoki Hayashi

Masahiro Yamada

Yukichi Murata

Takashi Hirasa

Jun Fujiyama

Masami Takigawa

Nobuyoshi Satoh

This short-distance radio communication system for a vehicle includes an in-vehicle unit having more than one antenna and a portable unit performing radio communications with the in-vehicle unit. The in-vehicle unit transmits a first burst together with a call signal for calling the portable unit through a first antenna, and transmits a second burst subsequent to the first burst through a second antenna. The portable unit receives the signals transmitted from the in-vehicle unit, measures respective received signal strength indicators from the first burst and the second burst contained in the received signals, and responds to the in-vehicle unit according to results of comparing the respective indicators with given thresholds.

Short-distance radio communication system for vehicle

A black-type recording liquid, even when used for ink-jet recording instruments or for recording with ordinary writing instruments on plain paper, is capable of forming a recorded image with high printing quality: high density, excellent color tone, and excellent water and light resistance, and is highly stable when stored for a long time.

Recording liquid and recording method according to ink-jet recording

A recording liquid comprising an aqueous medium and at least one dye selected from dyes, a free acid form of which is represented by formula (I), (II), (III) or (VI), the symbols in the formulae being defined in the specification: ##STR1##

Recording liquid

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Kanagawa, Japan

Toru Nishimura