Patents by Inventor Takayuki Hiraishi
Takayuki Hiraishi 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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Patent number: 11965640Abstract: Providing a super-high pressure lamp having increased pressure resistance. The super-high pressure lamp includes: an arc tube; and a sealing portion in which a front end of an exhaust pipe capable of exhausting gas in the arc tube or supplying gas into the arc tube is sealed, wherein, in the sealing portion, a height of a first sealed space, which has a tapered shape that becomes narrower toward a front end of the sealing portion, is larger than twice an inner diameter of the first sealed space.Type: GrantFiled: September 1, 2023Date of Patent: April 23, 2024Assignee: Ushio Denki Kabushiki KaishaInventors: Kazuyuki Mori, Takayuki Hiraishi, Junya Asayama
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Publication number: 20240085002Abstract: Providing a super-high pressure lamp having increased pressure resistance. The super-high pressure lamp includes: an arc tube; and a sealing portion in which a front end of an exhaust pipe capable of exhausting gas in the arc tube or supplying gas into the arc tube is sealed, wherein, in the sealing portion, a height of a first sealed space, which has a tapered shape that becomes narrower toward a front end of the sealing portion, is larger than twice an inner diameter of the first sealed space.Type: ApplicationFiled: September 1, 2023Publication date: March 14, 2024Applicant: Ushio Denki Kabushiki KaishaInventors: Kazuyuki MORI, Takayuki HIRAISHI, Junya ASAYAMA
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Patent number: 9748087Abstract: Disclosed herein are a short arc type flash lamp having high lamp starting performance and capable of reducing the diameter of its seal tube part, and a light source device thereof. The flash lamp has an electrode shaft of one of the main electrodes, and an electrode shaft of the other of the main electrodes and leads for starting auxiliary electrodes which are respectively led out from the second seal tube part, and an external trigger is disposed in a state in which it extends in the circumferential direction on the outer peripheral surface of one end side region of the second seal tube part. The light source device is structured by a concave reflection mirror disposed on the second seal tube part side of the flash lamp in a state in which a focal point of the concave reflection mirror coincides with a luminous point of the flash lamp.Type: GrantFiled: February 13, 2015Date of Patent: August 29, 2017Assignee: USHIO DENKI KABUSHIKI KAISHAInventors: Masahiko Kase, Takayuki Hiraishi
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Patent number: 9153428Abstract: A double-capped short arc flash lamp includes an arc tube, a pair of main electrodes disposed in the arc tube, and a pair of auxiliary electrodes disposed in the arc tube. The flash lamp also includes inner leads and outer leads associated with the two auxiliary electrodes, respectively. The flash lamp also includes a first sealing tube and a second sealing tube provided at opposite ends of the arc tube. A sealing glass tube is partly received in the second sealing tube. Grooves are formed in the outer surface of the sealing glass tube in a region where the sealing glass tube overlaps the second sealing tube. The grooves extend in the axial direction of the sealing glass tube, and are configured to receive the inner leads and the outer leads. Metallic foils electrically connect the inner leads with the outer leads, respectively.Type: GrantFiled: October 20, 2014Date of Patent: October 6, 2015Assignee: Ushio Denki Kabushiki KaishaInventors: Masahiko Kase, Takayuki Hiraishi, Hirohisa Ishikawa
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Publication number: 20150249003Abstract: Disclosed herein are a short arc type flash lamp having high lamp starting performance and capable of reducing the diameter of its seal tube part, and a light source device thereof. The flash lamp has an electrode shaft of one of the main electrodes, and an electrode shaft of the other of the main electrodes and leads for starting auxiliary electrodes which are respectively led out from the second seal tube part, and an external trigger is disposed in a state in which it extends in the circumferential direction on the outer peripheral surface of one end side region of the second seal tube part. The light source device is structured by a concave reflection mirror disposed on the second seal tube part side of the flash lamp in a state in which a focal point of the concave reflection mirror coincides with a luminous point of the flash lamp.Type: ApplicationFiled: February 13, 2015Publication date: September 3, 2015Applicant: USHIO DENKI KABUSHIKI KAISHAInventors: Masahiko KASE, Takayuki HIRAISHI
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Publication number: 20150115794Abstract: A double-capped short arc flash lamp includes an arc tube, a pair of main electrodes disposed in the arc tube, and a pair of auxiliary electrodes disposed in the arc tube. The flash lamp also includes inner leads and outer leads associated with the two auxiliary electrodes, respectively. The flash lamp also includes a first sealing tube and a second sealing tube provided at opposite ends of the arc tube. A sealing glass tube is partly received in the second sealing tube. Grooves are formed in the outer surface of the sealing glass tube in a region where the sealing glass tube overlaps the second sealing tube. The grooves extend in the axial direction of the sealing glass tube, and are configured to receive the inner leads and the outer leads. Metallic foils electrically connect the inner leads with the outer leads, respectively.Type: ApplicationFiled: October 20, 2014Publication date: April 30, 2015Applicant: USHIO DENKI KABUSHIKI KAISHAInventors: Masahiko KASE, Takayuki HIRAISHI, Hirohisa ISHIKAWA
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Publication number: 20120186961Abstract: An information processing apparatus includes a keyboard having a plurality of keys. The keyboard includes a sheet having a plurality of switch units for switching a non-conductive state and a conductive state according to operation with which the plurality of keys are respectively pressed down, the sheet having a first opening portion at a position corresponding to at least one of the keys, and a light emitting member provided below the sheet to emit light toward the key, the light emitting member having a second opening portion at a position corresponding to at least one of the keys.Type: ApplicationFiled: January 9, 2012Publication date: July 26, 2012Applicant: SONY CORPORATIONInventors: Shin Oike, Junichi Tadano, Tomoaki Watanabe, Takayuki Hiraishi
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Patent number: 7602126Abstract: Flash discharge lamp having an arc tube in which there is a pair of opposed electrodes, a rod-shaped trigger electrode which runs along the outside surface of the arc tube in its lengthwise direction; and a sealed tubular body which jackets the trigger electrode and has a hermetically sealed arrangement containing a metal foil. The trigger electrode has a recessed part on its surface in the vicinity of the metal foil and the recessed part is at least partially filled with the material of which the sealed tubular body is formed.Type: GrantFiled: May 16, 2007Date of Patent: October 13, 2009Assignee: Ushiodenki Kabushiki KaishaInventors: Tetsuo Fuse, Katsumi Shojo, Takayuki Hiraishi
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Publication number: 20070267974Abstract: Flash discharge lamp having an arc tube in which there is a pair of opposed electrodes, a rod-shaped trigger electrode which runs along the outside surface of the arc tube in its lengthwise direction; and a sealed tubular body which jackets the trigger electrode and has a hermetically sealed arrangement containing a metal foil. The trigger electrode has a recessed part on its surface in the vicinity of the metal foil and the recessed part is at least partially filled with the material of which the sealed tubular body is formed.Type: ApplicationFiled: May 16, 2007Publication date: November 22, 2007Applicant: USHIODENKI KABUSHIKI KAISHAInventors: Tetsuo FUSE, Katsumi SHOJO, Takayuki HIRAISHI