Mitsubishi Denki Kabushiki Kaisha

Jiro Kitayama

Toru Sugiyama

Masaaki Tanaka

Norikazu Tabata

Youichi Hisamori

Toshinori Yagi

Mitsuyasu Matsuo

Kyoko Fukumura

A semiconductor laser light source device and light source unit according to the present invention include a first plate-like member made of metal, to which a semiconductor laser array is joined along the end portion, a second plate-like member made of metal, in which an inlet opening portion, which introduces cooling fluid, and a cooling fluid draining channel, and a third plate-like member made of metal, which is formed along the area corresponding to the end portion and to which at least one cooling channel is provided through which cooling fluid flows in the longitudinal direction of the semiconductor laser array by communicating the cooling fluid introducing channel and the cooling fluid draining channel. Thus, the sectional area of the channel can be larger than that in the construction of the related art and the processing cost is reduced by comparison with the construction of the related art. The problems of blocking path with an extraneous matter and of high-pressure loss due to the path are overcome. Since the channel is provided along the longitudinal direction of the semiconductor laser array, the semiconductor laser array can be cooled efficiently.

Cooling device, semiconductor laser light source device, semiconductor laser source unit, method of manufacturing semiconductor laser light source unit and solid state laser device

An ozone producing apparatus including: an oxygen atom producing portion (6) for dissociating a supplied oxygen gas at a low pressure not more than atmospheric pressure so as to produce a first gas containing oxygen atoms; an ozone producing portion (a throat 3 and a diffuser 4) for mixing the first gas containing oxygen atoms supplied from the oxygen atom producing portion with a second gas containing oxygen, and allowing the first and second gases to react with each other for producing ozone; and a low pressure feeding (2, 9) means for reducing a pressure in the oxygen atom producing portion (6) at a specified low value not more than atmospheric pressure, and feeding the first gas to the ozone producing portion in a pressure reduction state.

Method of and apparatus for producing ozone

Growing community of inventors

Tokyo, Japan

Jiro Kitayama