Hitachi, Ltd.

Tokyo Electric Co.

The Tokyo Electric Power Company, Incorporated

Hitachi Engineering Ltd

Minoru Suzuki

Masato Kobayashi

Ayumu Morita

Toru Tanimizu

Yoshimi Hakamata

Kazuo Mera

Shuichi Kikukawa

Yozo Shibata

Katsunori Kojima

Naoki Nakatsugawa

Yoshitomo Gotoh

Makoto Terai

Takuya Okada

Mikio Hongo

Hiroyuki Sugawara

Tateoki Miyauchi

Kaoru Katayama

Hiroyuki Takagi

Toshiharu Shirakura

Shigeo Shiono

Shigenobu Maruyama

Koyo Morita

Sadao Yanada

Katsurou Mizukoshi

Haruhisa Sakamoto

Hidetoshi Ueno

Jun Imada

Kuninobu Ootake

Sigeru Sibata

Tadayoshi Wakita

Mitio Ishibasi

Humio Shibata

A decarbonating apparatus has a dehumidifying section for adsorbing humidity contained in waste gas and a decarbonating section for adsorbing CO contained in the dehumidified waste gas. The decarbonating section includes a decarbonating drum rotor loaded with a CO adsorbent having a honeycomb structure and arranged so as to adsorb CO contained in the waste gas, a heated gas supply pipe for supplying a heated gas so as to desorb CO adsorbed by the CO adsorbent, a purge gas supply pipe for supplying a purge gas so as to purge desorbed CO , and a cooling gas supply pipe for supplying a cooling gas so as to regenerate the CO adsorbent. The decarbonating drum rotor is rotated to successively pass through the adsorption region, the desorption region, the purging region, and the regeneration region.

Method for decarbonating waste gas and decarbonating apparatus

There is disclosed a vacuum insulation switch provided with a movable electrode, a stationary electrode and an earthing electrode, which are insulated from each other, in a vacuum container made of a conductive material which is earthed, and a switchgear using the same. Since the vacuum insulation, which is excellent in the insulation ability, is utilized, the switch is drastically miniaturized and the number of constituent parts are reduced, whereby the manufacturing cost of the switch and the switchgear can be decreased.

Vacuum switch and a vacuum switchgear using the same

A vacuum insulation switch provided with a movable electrode, a stationary electrode and an earthing electrode, which are insulated from each other, in a vacuum container made of a conductive material which is earthed, and a switchgear using the same.

A laser machining apparatus includes a laser beam source, such as of excimer laser, which produces a laser beam to be projected on a work piece or a sample, first and second illumination light sources which have wavelengths substantially equal to the wavelength of the laser beam and illuminate the entire image and the laser beam, respectively, a first beam splitter which guides the image produced by the illumination light to an observation unit, a second beam splitter which guides the laser beam from the laser beam source to an objective lens, and a controller which controls the machining condition including the relative positioning between the sample and the laser beam depending on the result of observation. The laser beam guide path structure from the laser beam source to the sample has its interior wall made of laser-transparent material such as glass, and the transparent material is enclosed by a laser blocking material such as a metal or water.

Laser machining apparatus and method of the same

In an optical path adjusting system, an x-axis wedge prism and a y-axis wedge prism are disposed in opposition to each other on the incident optical path side of a condenser lens to which a laser beam is incident so that the x-axis wedge prism and the y-axis wedge prism are displaceable in the directions of x and y axes of a surface of a work respectivley. A position of irradiation of the laser beam on the condenser lens is detected by a detector and the detected position of irradiation is inputted to a controller. The controller supplies a driver with an error correction signal representing an error of the position of irradiation relative to a reference position. The x-axis wedge prism and the y-axis wedge prism are dispalced by the driver so that the laser beam is corrected to be parallel to an optical axis of the condenser lens.

Optical path adjusting system with dual-axis wedge prisms

In a gas laser device according to this invention, a gas inlet having an electrode protrudes within each of expanded portions protruding on the side, where the gas inlet is disposed, of the principal portion of the discharge tube. Gas medium ejected from the gas inlet in the principal portion of a discharge tube collides with the inner surface of the principal portion of a discharge tube, while forming a flame extending along the ejected gas medium from the electrode and is divided into two partial flows. One of them flows along the wall of the expanded portion; collides with the gas inlet; and is divided further into two partial flows. Therefore it does not collide with the gas medium within the gas inlet. Consequently the gas medium and the flame fluctuate hardly and are stabilized. In this way it is possible to stabilize the laser output.

Gas laser device

A sequence display apparatus including a sequence control circuit, a cathode ray tube control device and a sequence display control device is disclosed in which a keyboard included in the sequence display control device is provided with logical function specifying keys for specifying one of a plurality of logical functions corresponding to such logical circuits as AND, OR and flip-flop circuits and a timer and with keys for inputting the names of input signals and the name of an output signal. One logic function, all of the names of the input signals and the name of the output signal are inputted as one set by the key-in operation, each of a group of command codes which are determined by the kind of logical function and the number of the names of input signals, is added to a corresponding one of the names of the input signals and the name of the output signal which have been inputted, to compose a logical operation program. The names of input signals are collectively displayed at a left end part of the display surface of a cathode ray tube, a position on the display surface for displaying the logic symbol is determined in accordance with the number of input signals, and the arrangement of a line for connecting each of the names of the input signals and the logic symbol is determined on the basis of the state of the display at each of the picture elements forming the display surface.

Sequence display apparatus and method

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Hitachi, Japan

Minoru Suzuki