Hitachi, Ltd.

Kazunori Yanagisawa

Takanori Nishiyama

Sakae Itakura

Shuichi Kouno

Yasuo Tsumurai

Mitsuru Oonuma

Atsuhiko Urushihara

Toshiyuki Utsuki

Kiyotoshi Mori

Atsushi Katayama

Atsuo Yoshida

Shigeki Masatsugu

Hiroyuki Kuriyama

Kazuyuki Tsuburaya

Tatsuo Murai

Tsukasa Ariyoshi

Yoshiki Igarashi

Tadashi Sube

Hideki Sakae

Toshinobu Shirato

Shyoji Kondo

A portable radio telephone set provided with a display section includes a rotary selector which rotates to select various functions. A menu displayed on the display section is selected by the rotary selector during a non-conversation time, and the sound volume can be adjusted during the conversation time. The adjusting operation can be performed from both the front and the rear sides of the telephone set. The rotary selector and button keys are arranged within the operation range of the thumb, and ordinary dial functions performed by operating these rotary selector and button keys are provided.

Portable radio telephone set

Information terminal

Chemical analyzer

A portable radio telephone set provided with a display section includes a rotary selector which turns to select various functions. A menu displayed on the display section is selected by the rotary selector during a non-conversation time, and the sound volume can be adjusted during the conversation time. The adjusting operation can be performed from both the front and the rear sides of the telephone set. The rotary selector and button keys are arranged within the operation range of the thumb, and ordinary dial functions performed by operating these rotary selector and button keys are provided.

A portable radio telephone set provided with a display section includes a rotary selector which turns to select various functions. A menu displayed on the display section is selected by the rotary selector during a non-conversation time, and the sound volume can be adjusted during the conversation time. The adjusting operation can be performed from both the front and, the rear sides of the telephone set. The rotary selector and button keys are arranged within the operation range of the thumb, and ordinary dial functions performed by operating these rotary selector and button keys are provided.

Foldable radio telephone set with rotary selector integral with foldable

Magnetic resonance imaging scanner

Electric fan

Computer display

Growing community of inventors

Higashiyamato, Japan

Kazunori Yanagisawa