Hitachi, Ltd.

501 Hitachi, Ltd.

Masayoshi Ezawa

Akira Misumi

Shigeru Wakana

Yoshifumi Tomita

Yutaka Hiratsuka

Kenkichi Suzuki

Hiromitsu Kawamura

Masaharu Kumada

Katsumi Kobara

Yoshiyuki Odaka

Kinya Eguchi

Shigeru Wakena

Hiroko Wakui

Kikue Niitsuma

Toshikazu Morishita

An infrared spectrum measuring microscope apparatus which is suitable for accurately identifying the material at a microfine portion. A sample stage is vertically moved and special optical means are provided in the sample stage for enabling high-sensitivity spectral measurement of a microfine portion of samples of various sizes. The infrared microspectometer of the present invention also enables the chemical species of the sample to be identified by the fluorescence spectrum in addition to the information of the infrared spectrum.

Infrared microspectrometer

A system for measuring a foreign material in a liquid, includes a sampling section, vacuum deaerators, foreign material measuring sensors. The sampling section prepares a sample liquid containing various foreign materials having particles of different sizes and numbers and a calibration standard liquid containing particles of known sizes and numbers. The vacuum deaerators deaerate gases mixed in the sample and calibration standard liquids. The sensors detect the foreign materials in the deaerated liquids. These sensors are arranged in front of the deaerators, respectively.

System for measuring foreign materials in liquid

The panel face plate of a cathode ray tube is provided with an irregular film which is formed by spraying a mixed solution of silicon hydroxide, alcohol and alkyl acetate onto the panel face plate.

Technique for preventing reflections in a cathode ray tube

Disclosed is a projection tube containing a coolant comprising a liquid mixture of ethylene glycol and water filled in the space between a phosphor screen panel and a transparent face panel which is set up at a certain distance in front thereof, wherein the coolant is incorporated with 10 ppm to 20 wt. % of an ethylene oligomer. The present projection tube is an excellent product free from a decrease in transmittance due to the coloring of the coolant in operation at a high temperature.

Projection tube whose coolant contains an ethylene oligomer

A photovoltaic-storage battery device is disclosed, which comprises a substrate having a pair of major surfaces, a photovoltaic element formed on one major surface of the substrate and including a pair of opposing electrodes and a photoelectric film intervening between the pair of opposing electrodes and a storage battery element formed on the other major surface of the substrate and including a second pair of opposing electrodes which are connectable to the first-mentioned pair of opposing electrodes, respectively, and an electrolyte intervening between the second-mentioned pair of opposing electrodes.

Photovoltaic-storage battery device

Growing community of inventors

Mobara, Japan

Masayoshi Ezawa