Mitsubishi Heavy Industries Limited

Mitsubishi Heavy Industries Food & Packaging Machinery Co., Ltd.

Toyota Jidosha Kabushiki Kaisha

Kirin Beer Kabushiki Kaisha

Technology Research Association for Future Additive Manufacturing

Mitsubishi Heavy Industries Food & Machinery Co., Ltd.

Mitsubishi Heavy Industries Machinery Systems, Ltd.

Minoru Danno

Hideo Yamakoshi

Shigenori Tsuruga

Hiroshi Futami

Shizuma Kuribayashi

Satoshi Sakai

Tetsuya Ikeda

Masazumi Tanoura

Noriko Yamazaki

Saneyuki Goya

Toshiya Watanabe

Kenji Muta

Tadashi Aoki

Yuji Asahara

Shinichiro Asami

Masatoshi Katsuki

Daishi Ueno

Yuuko Ujihara

Seiji Goto

Eiji Kato

Takashi Ishide

Kenichi Okamoto

Atsushi Ueda

Yoshihito Fujita

Masato Kinouchi

Takashi Fujinaga

Atsushi Takita

Kageharu Moriyama

Masao Watanabe

Akira Shirakura

Yoshihiro Deguchi

Makoto Yamasaki

Haruhiko Niitani

Masaki Nakaya

Tsugumaru Yamashita

Katsutoshi Goto

Masahiro Yamakage

Koji Satake

Ryu Suzuki

Satoshi Fukada

Ichiro Awaya

Kohei Kanaoka

Tokio Okano

Tomoyasu Iwase

Kiyoshi Hiroya

A laser machining device includes a laser machining head and a control unit. The laser machining head applies laser for machining an object to be machined, and includes a first laser light source for first laser, a second laser light source for second laser having a different pulse width different from the first laser, a condensing optical system provided between the object and the laser light sources to condense at least the lasers on the object, a switch mechanism provided between the condensing optical system and the laser light sources so that the switch mechanism is movable to a position that at least one of the lasers enters the condensing optical system, and an irradiation angle change mechanism provided between the condensing optical system and the switch mechanism to change an irradiation angle of the first laser. The control unit controls the laser machining head.

Laser machining device and laser machining method

Provided is a laser processing method in which a laser processing head for irradiating, with at least a short-pulse laser, a processed article having a protection layer laminated to a metal layer is used to process the processed article, whereby high-quality, highly accurate processing is possible by means of a short-pulse laser processing step for irradiating the protection layer with the short-pulse laser and ablating the protection layer, and a metal layer processing step for ablating the metal layer in the area that was ablated during the short-pulse laser processing step.

Laser processing method and laser processing apparatus

This invention is directed to attenuating a beam output without changing the beam position and the beam diameter. A high-output optical attenuator includes a first reflector that totally reflects incident light and causes first reflected light serving as reflected light of the incident light to enter a second reflecting portion, a second reflector that reflects the first reflected light and causes second reflected light serving as reflected light of the first reflected light to enter a third reflecting portion, a third reflector that reflects the second reflected light and causes third reflected light serving as reflected light of the second reflected light to enter a fourth reflecting portion, and a fourth reflector that reflects the third reflected light as fourth reflected light having the same optical axis as the optical axis of the incident light. At least two of the second reflector, the third reflector, and the fourth reflector are half mirrors.

High-output optical attenuator, measurement device, and 3D shaping apparatus

A processing apparatus and a processing method which perform processing more accurately with a simple structure are provided. The processing apparatus includes an irradiation headand a control device. The irradiation headincludes a laser turning unitand a condensing optical system. The laser turning unitincludes a first prism, a second prism, a first rotating mechanism, and a second rotating mechanism. The control device adjusts the differences between rotation speeds and phase angles of the first prismand the second prismbased on a relation between at least a heat affected layer of a workpiece and a turning speed of laser.

Processing apparatus and processing method

A flow volume measurement device or a flow velocity measurement device include a measurement cell including a main pipe, an incident tube that is connected to the main pipe, an emission tube that is connected to the main pipe, and a first purge-fluid supply tube that is connected to the incident tube, a purge-fluid supply unit that supplies purge fluid into the first purge-fluid supply tube of the measurement cell, a light emitting unit that emits a laser beam to the measurement cell, a light receiving unit that receives the laser beam emitted from the light emitting unit and having passed through the measurement cell, and outputs a received amount of light as a light reception signal, a calculation unit that calculates a flow volume or a flow velocity of exhaust fluid flowing in the measurement cell, based on a light reception signal output from the light receiving unit.

Flow volume measurement device and flow velocity measurement device

An object of the present invention is to provide a flue gas purifying device that can efficiently decrease nitrogen oxides in flue gas. This object is solved by including: an exhaust pipe that guides flue gas discharged from a burning appliance; a urea-water injecting unit that injects urea water into the exhaust pipe; a catalytic unit arranged on a downstream side to a position where urea water is injected in a flow direction of flue gas and having a urea SCR catalyst; a first ammonia-concentration measuring unit that measures a concentration of ammonia in flue gas at a measurement position in a region where the catalytic unit is arranged; a second ammonia-concentration measuring unit arranged on a downstream side to the catalytic unit in a flow direction of the flue gas, to measure a concentration of ammonia in the flue gas having passed through the urea SCR catalyst; and a control unit that controls injection of urea water by the urea-water injecting unit based on measurement results acquired by the first and second ammonia-concentration measuring units.

Flue gas purifying device

A barrier-film forming apparatus that forms a barrier film on an inner face of a container having a concave or convex portion as a processing target, including: a dielectric member having a cavity sized to enclose the container, an external electrode covering an outer circumference of the dielectric member, an exhaust unit installed on an end face of the external electrode on a side where a mouth of the container is located, with an insulating member interposed therebetween, and depressurizing inside of the container through an exhaust pipe, an internal electrode inserted from a side of the exhaust pipe and also serving as a gas blowout unit that blows out medium gas for generating a barrier film into the container, and an electric-field applying unit that applies an electric field for generating exhaust between the external electrode and a ground electrode.

Barrier-film forming apparatus, barrier-film forming method, and barrier-film coated container

An object of the present invention is to provide a flue gas purifying device that can suppress leakage of ammonia and can efficiently decrease nitrogen oxides in flue gas. The object is achieved by a flue gas purifying device including: an exhaust pipe; a urea-water injecting unit that injects urea water into the exhaust pipe; a catalytic unit that includes a urea SCR catalyst that promotes a reaction between ammonia and nitrogen oxides and a support mechanism that supports the urea SCR catalyst in the exhaust pipe, and is arranged on a downstream side to a position where urea water is injected; a concentration measuring unit arranged on a downstream side to the catalytic unit in a flow direction of flue gas to measure an ammonia concentration in flue gas having passed through the urea SCR catalyst; and a control unit that controls injection of urea water by the urea-water injecting unit based on an ammonia concentration measured by the concentration measuring unit.

An inner electrode for barrier film formation is an inner electrode for barrier film formation that is inserted inside a plastic container having an opening, supplies a medium gas to the inside of the plastic container, and supplies high frequency power to an outer electrode arranged outside the plastic container, thereby generating discharge plasma on the inner surface of the plastic container to form a barrier film on the inner surface of the plastic container, and that is provided with a gas supply pipe having a gas flow path to supply a medium gas and an insulating member screwed into an end portion of the gas supply pipe to be flush therewith and having a gas outlet communicated with the gas flow path.

Inner electrode for barrier film formation and apparatus for film formation

A method and apparatus for measuring density which can simultaneously measure gaseous substance density and solid particulate material density and further can simultaneously measure the densities of a plurality of materials such as black smoke, white smoke, and water vapor. The method includes irradiating a laser having at least one wavelength equivalent to an absorption wavelength of each gaseous substance to be measured.

Method and apparatus for measuring density

An inner electrode for barrier film formation is an inner electrode for barrier film formation that is inserted inside a plastic container having an opening, supplies a medium gas to the inside of the plastic container, and supplies high frequency power to an outer electrode arranged outside the plastic container, thereby generating discharge plasma on the inner surface of the plastic container to form a barrier film on the inner surface of the plastic container, and that is provided with a gas supply pipe () having a gas flow path () to supply a medium gas (G) and an insulating member () screwed into an end portion of the gas supply pipe () to be flush therewith and having a gas outlet () communicated with the gas flow path ().

An exhaust gas analyzer of the present invention includes a sensor unitinstalled in an exhaust path from an engine, applies laser light to exhaust gas emitted from the engine and receives laser light that has passed through the exhaust gas so as to measure the concentration of a component contained in the gas based on the received laser light. To an apertureformed in a sensor baseof the sensor unit, an adjustment ringin a circumferential face of which small holesserving as a laser light passage portion is formed and whose inner circumferential face serves as an exhaust gas passage openingis detachably fitted, whereby the sensor unit can be attached so as to conform to different inner diameters of exhaust tubes.

Sensor unit in exhaust gas analyzer

An optical system includes a fluoride compound and has surfaces facing and exposed to plasma installed in an optical equipment which has an inner zone where the plasma exists. A 2 nm-20 nm protective film of a highly plasma-resistant material is formed on the surface of the fluoride compound that is exposed to the plasma.

Optical properties restoration apparatus, the restoration method, and an optical system used in the apparatus

An optical system has fluoride compounds provided in an environment exposed by vacuum ultraviolet light or plasma light, which has higher photon energy than an absorption wavelength of a base stock of the optical system. 1-layer of a protective film of SiOor metal oxides having a film thickness of 2-20 nm is formed at least on the light irradiation side (inner side) of the optical system to prevent the stripping of the fluorine atoms from the surface of the optical system. In addition, the protective film is a 1-layer film selected from one of SiO, MgO, TiO, or ZrO.

The objectives of the present invention are to prevent or inhibit the deterioration effects such as light transmission, diffraction, reflection, spectrum generation, and interference, and these combinations, and by so doing, decrease the frequency of maintenance operations such as window replacement and to reduce the costs for such operations. This invention is characterized by steps of creating a near vacuum zone with a presence of active energy to excite an oxidation reaction of carbon wherein the near vacuum zone faces the lighting surfaces of the optical system; generating negative ions or radicals in the near vacuum zone such as unstable chemical seeds containing oxygen atoms, such as OH radicals, OH ions, ozone, Oions, O-radicals; and removing or reducing the accumulated carbon which deposits on the lighting surface, by reacting the deposited carbon with the negative ions or radicals. More specifically, the method according to this invention is characterized by the step of supplying active energy while supplying a flow of gases containing oxygen atoms such as water gas or oxidizing gas (for example, water vapor, oxygen, hydrogen peroxide, ozone or mixtures of said gases with inactive gases (including air)) into the near vacuum zone, thereby removing or reducing the accumulated carbon which deposits on the lighting surface by exciting the oxidation reaction of the accumulated carbon with the supplied active energy.

Optical properties apparatus, the restoration method, and an optical system used in the apparatus

Growing community of inventors

Kanagawa, Japan

Minoru Danno