Patents by Inventor Yukio Yasuda
Yukio Yasuda has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20210115181Abstract: To produce quickly and easily an open cell rigid polyurethane foam having a uniform and low density, a method for producing an open cell rigid polyurethane foam is provided, the method comprising foaming a mixed liquid of (1) a polyol-containing component comprising (a) a polyol mixture, (b) a catalyst, and (c) a foaming agent (c), and (2) a polyisocyanate component. The foaming agent consists of water and an adduct of a primary or secondary amine compound and carbon dioxide, the amount of the water is 10 to 80 parts by mass based on 100 parts by mass of the polyol mixture, and the amount of the adduct is 1 to 20 parts by mass based on 100 parts by mass of the polyol mixture.Type: ApplicationFiled: November 24, 2017Publication date: April 22, 2021Inventors: Hideki WADA, Kei ODANI, Takayasu TANABE, Yukio YASUDA
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Publication number: 20180247382Abstract: Provided are a risk information distribution device including an itinerary information acquisition processing unit, a risk information acquisition processing unit, a risk information determination processing unit, a risk information notification processing unit, a position information acquisition processing unit, a position information collation processing unit, a decision result display processing unit, an abnormality notification processing unit, a safety confirmation notification processing unit, and an position information confirmation processing unit, an itinerary information database, a risk information database, a position information database that stores position information of a portable information terminal, a notification history information database that stores history of alert distribution, and a risk information distribution method capable of distributing, to a traveler, risk information corresponding to a current location and future schedule of the traveler and capable of distributing the riskType: ApplicationFiled: January 27, 2016Publication date: August 30, 2018Inventors: Kunihiko TANIGUCHI, Mitsuru FUJITA, Yukio YASUDA, Ryogaku TANABE, Takahiro TOMITA
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Patent number: 9633829Abstract: A discharge lamp includes an emitter other than thorium, which is added to a cathode in a luminous tube. Early depletion of the emitter due to excessive vaporization of the emitter from the cathode is prevented, while achieving stable lighting even at the start-up of the lighting. A main body part (31) of the cathode (3) is made from a high-melting-point metal material that contains no thorium, and a front end part (32) thereof is made from a high-melting-point metal material that contains an emitter (other than thorium). A sintered compact (34), which contains an emitter (other than thorium) at a concentration higher than the emitter contained in the front end part (32), is buried in a sealed space (33) that is formed within the main body part (31) and/or the front end part (32). The sintered compact (34) abuts against the front end part (32).Type: GrantFiled: June 17, 2014Date of Patent: April 25, 2017Assignee: USHIO DENKI KABUSHIKI KAISHAInventors: Yukiharu Tagawa, Tomoyoshi Arimoto, Mitsuo Funakoshi, Yukio Yasuda, Yuki Otoshima, Hirohisa Iwabayashi
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Patent number: 9548196Abstract: A discharge lamp includes a cathode in a luminous tube, and an emitter, other than thorium, is added to the cathode. The emitter is prevented from being excessively vaporized from the cathode and depleted soon. Smooth lighting is enabled even at start-up. A main body part (31) of the cathode (3) is made from a metallic material having a high melting point and containing no thorium. A front end (32) is made from a metallic material having a high melting point and containing an emitter (excepting thorium). Inside a sealed space (33) formed in the main body part (31) and/or the front end part (32) is received a sintered compact (34) containing an emitter (excepting thorium) that is higher in concentration than the emitter contained in the front end part (32).Type: GrantFiled: June 17, 2014Date of Patent: January 17, 2017Assignee: USHIO DENKI KABUSHIKI KAISHAInventors: Yukiharu Tagawa, Tomoyoshi Arimoto, Mitsuo Funakoshi, Yukio Yasuda, Hirohisa Iwabayashi
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Publication number: 20160155625Abstract: A discharge lamp includes an emitter other than thorium, which is added to a cathode in a luminous tube. Early depletion of the emitter due to excessive vaporization of the emitter from the cathode is prevented, while achieving stable lighting even at the start-up of the lighting. A main body part (31) of the cathode (3) is made from a high-melting-point metal material that contains no thorium, and a front end part (32) thereof is made from a high-melting-point metal material that contains an emitter (other than thorium). A sintered compact (34), which contains an emitter (other than thorium) at a concentration higher than the emitter contained in the front end part (32), is buried in a sealed space (33) that is formed within the main body part (31) and/or the front end part (32). The sintered compact (34) abuts against the front end part (32).Type: ApplicationFiled: June 17, 2014Publication date: June 2, 2016Applicant: USHIO DENKI KABUSHIKI KAISHAInventors: Yukiharu TAGAWA, Tomoyoshi ARIMOTO, Mitsuo FUNAKOSHI, Yukio YASUDA, Yuki OTOSHIMA, Hirohisa IWABAYASHI
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Publication number: 20160148797Abstract: A discharge lamp includes a cathode in a luminous tube, and an emitter, other than thorium, is added to the cathode. The emitter is prevented from being excessively vaporized from the cathode and depleted soon. Smooth lighting is enabled even at start-up. A main body part (31) of the cathode (3) is made from a metallic material having a high melting point and containing no thorium. A front end (32) is made from a metallic material having a high melting point and containing an emitter (excepting thorium). Inside a sealed space (33) formed in the main body part (31) and/or the front end part (32) is received a sintered compact (34) containing an emitter (excepting thorium) that is higher in concentration than the emitter contained in the front end part (32).Type: ApplicationFiled: June 17, 2014Publication date: May 26, 2016Applicant: USHIO DENKI KABUSHIKI KAISHAInventors: Yukiharu TAGAWA, Tomoyoshi ARIMOTO, Mitsuo FUNAKOSHI, Yukio YASUDA, Hiroshisa WABAYASHI
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Patent number: 8933568Abstract: A semiconductor device according to the present invention includes: a power semiconductor element that is a semiconductor element; bonding parts provided for bonding of an upper surface and a lower surface of the semiconductor element; and metal plates bonded to the power semiconductor element from above and below through the bonding parts, wherein the bonding part includes a mesh metal body disposed between the semiconductor element and the metal plate, and a bonding member in which the mesh metal body is embedded.Type: GrantFiled: October 19, 2010Date of Patent: January 13, 2015Assignee: Mitsubishi Electric CorporationInventors: Tsuyoshi Takayama, Yukio Yasuda, Hajime Kato, Kazuaki Hiyama, Taishi Sasaki, Mikio Ishihara
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Patent number: 8882948Abstract: In a glove manufacturing device, a glove insert with thermoplastic adhesive applied on the outer side is fixed on a glove holding member in a state where it has been inserted into the inner side of the outer material of the glove. The glove insert is then expanded by way of a gas injection means, and the outer material of the glove and the glove insert are bonded. The glove holding member is fixed on the turntable and sent to a heating furnace by this rotating.Type: GrantFiled: March 25, 2009Date of Patent: November 11, 2014Assignee: OutDry Technologies CorporationInventors: Yutaka Hayashi, Yukio Yasuda, Akihisa Kaneda, Matteo Morlacchi
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Patent number: 8841843Abstract: A short arc type mercury lamp structure has Hg and a rare gas which are enclosed inside a light-emitting tube. Kr is enclosed as the rare gas. It is possible to realize the initial intensity of radiation at the same level as in the case in which Ar is enclosed and prevent a sudden decrease in the intensity of radiation when the lamp is lighted for a long time. The longevity of the lamp is greatly increased than that of a lamp in which Ar is enclosed. The anode satisfies the formula: 1?r/(d0×tan ?)?0.66, where r (mm) is the radius of the leading end surface of the anode, ?(°) is the angle between the electrode axis and the taper surface in the axial cross-section of the anode, and d0 (mm) is the inter-electrode distance.Type: GrantFiled: July 3, 2013Date of Patent: September 23, 2014Assignee: Ushio Denki Kabushiki KaishaInventors: Masaki Kato, Yukio Yasuda
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Patent number: 8791635Abstract: Disclosed herein is a short arc discharge lamp which has a cathode electrode structure formed by solid-phase bonding a tip part made of thoriated tungsten to a body part made of tungsten. According to the present invention, the bonding strength between the body part and the tip part is increased to the same level as the mechanical strength of tungsten, thus preventing a breakage from being caused on a junction interface. For this, on a section of the cathode electrode taken along a line perpendicular to the junction interface, in an arbitrary portion of 500 ?m or more in length along the junction interface, when a length of the arbitrary portion along the junction interface is set to L0, and a sum of lengths of tungsten crystal grains, along the junction interface, that are present through the junction interface is set to L, (L/L0)?0.16 is satisfied.Type: GrantFiled: May 17, 2013Date of Patent: July 29, 2014Assignee: Ushio Denki Kabushiki KaishaInventors: Yukio Yasuda, Akiko Uchino
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Patent number: 8651701Abstract: A light source device that irradiates a discharge vessel with a laser beam to produce radiant light that is reflected by an ellipsoidal reflecting surface efficiently utilizes the light produced by directing the laser beam through an unirradiated region where reflected light from the ellipsoidal reflector is blocked by the discharge vessel, through an opening side of the ellipsoidal reflector to the discharge vessel. The discharge vessel has an emission substance enclosed inside which is excited by the laser beam and produces radiant light, is arranged at a focal point of the ellipsoidal reflector. A planar mirror, with which radiant light reflected by the ellipsoidal reflector is reflected in a different direction has a window in an unirradiated region where reflected light from the ellipsoidal reflector is blocked by the discharge vessel through which the laser beam passes to the discharge vessel.Type: GrantFiled: December 17, 2009Date of Patent: February 18, 2014Assignees: Ushio Denki Kabushiki Kaisha, Energetio Technology, Inc.Inventors: Yukio Yasuda, Taku Sumitomo, Masaki Kato
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Patent number: 8648531Abstract: A high pressure discharge lamp has a sealing portion that is made of glass and a sealing metal piece. In a method of manufacturing the high pressure discharge lamp, the sealing metal piece is irradiated with laser beam whose pulse width is 1×10?9 seconds or less, so as to carry out a surface treatment of the sealing metal piece. The sealing metal piece may have a groove that is 120 to 600 nm in depth and 450 to 1,200 nm in width.Type: GrantFiled: October 25, 2010Date of Patent: February 11, 2014Assignee: Ushio Denki Kabushiki KaishaInventors: Toshio Yokota, Yukio Yasuda, Hiroyuki Daido, Hiromitsu Kiriyama, Hajime Okada, Masayuki Suzuki, Izuru Daito
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Publication number: 20140015404Abstract: A short arc type mercury lamp structure has Hg and a rare gas which are enclosed inside a light-emitting tube. Kr is enclosed as the rare gas. It is possible to realize the initial intensity of radiation at the same level as in the case in which Ar is enclosed and prevent a sudden decrease in the intensity of radiation when the lamp is lighted for a long time. The longevity of the lamp is greatly increased than that of a lamp in which Ar is enclosed. The anode satisfies the formula: 1?r/(d0×tan?)?0.66, where r (mm) is the radius of the leading end surface of the anode, ?(°) is the angle between the electrode axis and the taper surface in the axial cross-section of the anode, and d0 (mm) is the inter-electrode distance.Type: ApplicationFiled: July 3, 2013Publication date: January 16, 2014Inventors: MASAKI KATO, YUKIO YASUDA
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Patent number: 8605408Abstract: A power semiconductor device for an igniter comprises: a first semiconductor switching device; and an integrated circuit, wherein the integrated circuit includes: a second semiconductor switching device connected in parallel with the first semiconductor switching device and having a smaller current capacity than a current capacity of the first semiconductor switching device; a delay circuit delaying a control input signal so that the second semiconductor switching device is energized prior to the first semiconductor switching device; a third semiconductor switching device including a thyristor structure connected to a high voltage side main terminal of the second semiconductor switching device and being made conductive by a part of a main current flowing through the energized second semiconductor switching device; and a first excess voltage detection circuit stopping the first semiconductor switching device when voltage on the high voltage side main terminal is equal to or more than a predetermined voltage.Type: GrantFiled: September 8, 2010Date of Patent: December 10, 2013Assignee: Mitsubishi Electric CorporationInventors: Shinsuke Godo, Yukio Yasuda, Atsunobu Kawamoto
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Publication number: 20130313970Abstract: Disclosed herein is a short arc discharge lamp which has a cathode electrode structure formed by solid-phase bonding a tip part made of thoriated tungsten to a body part made of tungsten. According to the present invention, the bonding strength between the body part and the tip part is increased to the same level as the mechanical strength of tungsten, thus preventing a breakage from being caused on a junction interface. For this, on a section of the cathode electrode taken along a line perpendicular to the junction interface, in an arbitrary portion of 500 ?m or more in length along the junction interface, when a length of the arbitrary portion along the junction interface is set to L0, and a sum of lengths of tungsten crystal grains, along the junction interface, that are present through the junction interface is set to L, (L/L0)?0.16 is satisfied.Type: ApplicationFiled: May 17, 2013Publication date: November 28, 2013Inventors: Yukio Yasuda, Akiko Uchino
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Patent number: 8288946Abstract: To provide a flickerless discharge lamp which can remove hydrogen by a simple and safe means even if the lamp is a large discharge lamp with high pressure when lit, the discharge lamp has a pair of electrodes and a hydrogen getter (4) in the interior of an arc tube, the hydrogen getter (4) being formed of a container (41) made of metal which is hydrogen permeable and a hydrogen absorbent body (42) that is composed of a metal which can absorb hydrogen that is enclosed inside of the container (41) and is fixed to an inside wall of the container (41).Type: GrantFiled: September 3, 2009Date of Patent: October 16, 2012Assignee: Ushiodenki Kabushiki KaishaInventors: Takeo Matsushima, Yukio Yasuda, Yutaka Mune
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Patent number: 8288947Abstract: In a light source device provided with a light emission tube in which a light emitting element is enclosed and at least one laser oscillator part for radiating a laser beam towards said light emission tube, for focusing a beam within a light emission tube with a large solid angle and for preventing that the beam with a high energy density impinges upon the wall of the light emission tube, the light emission tube has a tube wall, part of which is made to function as a focusing means, or the light emission tube has a focusing means at the inner surface thereof.Type: GrantFiled: October 13, 2010Date of Patent: October 16, 2012Assignees: Ushio Denki Kabushiki Kaisha, Energetiq Technology, Inc.Inventors: Toshio Yokota, Taku Sumitomo, Yukio Yasuda
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Patent number: 8242695Abstract: An laser driven light source comprises a bulb that encloses a discharge medium, a laser beam unit for emitting a laser beam, wherein the laser beam is focused in the bulb for generating a discharge, and a beam shield element that is provided in the bulb to shield peripheral devices from the laser beam, which passes through the discharge generated in the bulb.Type: GrantFiled: April 13, 2010Date of Patent: August 14, 2012Assignees: Ushio Denki Kabushiki Kaisha, Energetiq Technology, Inc.Inventors: Taku Sumitomo, Yukio Yasuda, Toshio Yokota
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Patent number: 8182127Abstract: A light source is provided. The light source includes: an elliptical reflection mirror having first and second focal points; a discharge chamber in which a luminescent substance is enclosed and which is disposed on the first focal point; a laser light generator which emits the laser light; and a laser light guide which guides the laser light from an opening side of the elliptical reflection mirror into the discharge chamber. The luminescent substance is excited by providing the laser light to the luminescent substance so as to emit light, and the light is reflected by the elliptical reflection mirror. The laser light guide is disposed in a shade area in which the light reflected by the elliptical reflection mirror is blocked by the discharge chamber.Type: GrantFiled: December 23, 2009Date of Patent: May 22, 2012Assignees: Ushio Denki Kabushiki Kaisha, Energetiq Technology, Inc.Inventors: Yukio Yasuda, Taku Sumitomo, Masaki Kato
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Publication number: 20110258750Abstract: In a glove manufacturing device, a glove insert with thermoplastic adhesive applied on the outer side is fixed on a glove holding member in a state where it has been inserted into the inner side of the outer material of the glove. The glove insert is then expanded by way of a gas injection means, and the outer material of the glove and the glove insert are bonded. The glove holding member is fixed on the turntable and sent to a heating furnace by this rotating.Type: ApplicationFiled: March 25, 2009Publication date: October 27, 2011Applicant: NEXTEC S.R.L.Inventors: Yutaka Hayashi, Yukio Yasuda, Akihisa Kaneda, Matteo Morlacchi