Patents by Inventor Koji Hirano
Koji Hirano 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: 8900688Abstract: To provide a grain oriented electrical steel sheet that can securely suppress propagation of lateral strain, and can make a product even from a portion where the lateral strain occurs. A grain oriented electrical steel sheet of the present invention has a linearly altered portion 14 generated in a glass coating film 12 at one of side edges of a steel sheet 11, in a continuous line or in a discontinuous broken line in a direction parallel with a rolling direction of the steel sheet, and having a composition different from a composition in other portions of the glass coating film. An average value of a deviation angle of a direction of an axis of easy magnetization of crystal grains relative to the rolling direction is 0° or more and 20° or less in a base metal iron portion of the steel sheet 11 at a position along a width direction of the steel sheet, the position corresponding to the linearly altered portion 14.Type: GrantFiled: May 28, 2012Date of Patent: December 2, 2014Assignee: Nippon Steel & Sumitomo Metal CorporationInventors: Tatsuhiko Sakai, Yoshio Nakamura, Kazuyuki Tashiro, Shohji Nagano, Shuichi Yamazaki, Koji Hirano
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Publication number: 20140246125Abstract: A silicon steel sheet (1) containing Si is cold-rolled. Next, a decarburization annealing (3) of the silicon steel sheet (1) is performed so as to cause a primary recrystallization. Next, the silicon steel sheet (1) is coiled so as to obtain a steel sheet coil (31). Next, an annealing (6) of the steel sheet coil (31) is performed through batch processing so as to cause a secondary recrystallization. Next, the steel sheet coil (31) is uncoiled and flattened. Between the cold-rolling and the obtaining the steel sheet coil (31), a laser beam is irradiated a plurality of times at predetermined intervals on a surface of the silicon steel sheet (1) from one end to the other end of the silicon steel sheet (1) along a sheet width direction (2). When the secondary recrystallization is caused, grain boundaries passing from a front surface to a rear surface of the silicon steel sheet (1) along paths of the laser beams are generated.Type: ApplicationFiled: May 13, 2014Publication date: September 4, 2014Applicant: Nippon Steel & Sumitomo Metal CorporationInventors: Tatsuhiko Sakai, Koji Hirano, Satoshi Arai, Yoshiyuki Ushigami
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Patent number: 8794215Abstract: The present invention provides a method of producing a common rail having a common rail body and a holder which include chemical components of 0.01-0.3 mass % of C, 0.01-0.5 mass % of Si, 0.01-3.0 mass % of Mn, 0.0003-0.01 mass % of B, 0.001-0.01 mass % of N, over 0.01-0.5 mass % of Al, 0.01-0.05 mass % of Ti, P limited to 0.03 mass % or less, S limited to 0.01 mass % or less, O limited to 0.01 mass % or less, a total content of As, Sn, Sb, Pb, and Zn limited to 0.015 mass % or less, the balance including Fe and inevitable impurities, in which the TLB value is 0.001% or more, the method including: inserting an insert metal; performing liquid phase diffusion bonding; performing laser-peening; and removing a surface layer.Type: GrantFiled: March 5, 2010Date of Patent: August 5, 2014Assignee: Nippon Steel & Sumitomo Metal CorporationInventors: Koji Hirano, Atsushi Sugihashi, Hirofumi Imai, Yasushi Hasegawa
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Patent number: 8790471Abstract: A silicon steel sheet (1) containing Si is cold-rolled. Next, a decarburization annealing (3) of the silicon steel sheet (1) is performed so as to cause a primary recrystallization. Next, the silicon steel sheet (1) is coiled so as to obtain a steel sheet coil (31). Next, an annealing (6) of the steel sheet coil (31) is performed through batch processing so as to cause a secondary recrystallization. Next, the steel sheet coil (31) is uncoiled and flattened. Between the cold-rolling and the obtaining the steel sheet coil (31), a laser beam is irradiated a plurality of times at predetermined intervals on a surface of the silicon steel sheet (1) from one end to the other end of the silicon steel sheet (1) along a sheet width direction (2). When the secondary recrystallization is caused, grain boundaries passing from a front surface to a rear surface of the silicon steel sheet (1) along paths of the laser beams are generated.Type: GrantFiled: July 28, 2010Date of Patent: July 29, 2014Assignee: Nippon Steel & Sumitomo Metal CorporationInventors: Tatsuhiko Sakai, Koji Hirano, Satoshi Arai, Yoshiyuki Ushigami
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Publication number: 20140146651Abstract: A non-transitory computer-readable storage medium and information processing apparatuses. The medium stores instructions which, when executed by a computer, cause the computer to perform a method including automatically reading first management data from a first recording medium. The first management data identifies tracks of source data recorded on the first recording medium. One of the tracks of source data is automatically identified based on the first management data and second management data, which identifies files of ripped data recorded on a second recording medium. The one of the tracks of source data is absent from the second recording medium. The one of the tracks of source data is automatically transferred to the second recording medium and becomes one of the files of ripped data. The method further includes automatically displaying transferring status of the one of the tracks of source data by a symbolic figure.Type: ApplicationFiled: January 31, 2014Publication date: May 29, 2014Applicant: SONY CORPORATIONInventors: Koji HIRANO, Shoji INAGAKI, Ryuichiro TOGASHI
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Publication number: 20140106130Abstract: To provide a grain oriented electrical steel sheet that can securely suppress propagation of lateral strain, and can make a product even from a portion where the lateral strain occurs. A grain oriented electrical steel sheet of the present invention has a linearly altered portion 14 generated in a glass coating film 12 at one of side edges of a steel sheet 11, in a continuous line or in a discontinuous broken line in a direction parallel with a rolling direction of the steel sheet, and having a composition different from a composition in other portions of the glass coating film. An average value of a deviation angle of a direction of an axis of easy magnetization of crystal grains relative to the rolling direction is 0° or more and 20° or less in a base metal iron portion of the steel sheet 11 at a position along a width direction of the steel sheet, the position corresponding to the linearly altered portion 14.Type: ApplicationFiled: May 28, 2012Publication date: April 17, 2014Applicant: NIPPON STEEL & SUMITOMO METAL CORPORATIONInventors: Tatsuhiko Sakai, Yoshio Nakamura, Kazuyuki Tashiro, Shohji Nagano, Shuichi Yamazaki, Koji Hirano
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Patent number: 8681447Abstract: An information processing apparatus including a reading unit, a processor, a transferring unit, and a control unit. The reading unit reads first management data from a first recording medium. The first management data identifies tracks of source data recorded on the first recording medium. The processor compares the first management data with second management data. The second management data identifies files of ripped data recorded on a second recording medium. The transferring unit transfers one of the tracks of the source data, to the second recording medium, when absent from the second recording medium. The control unit controls a display unit to display transferring status by a symbolic figure.Type: GrantFiled: October 16, 2012Date of Patent: March 25, 2014Assignee: Sony CorporationInventors: Koji Hirano, Shoji Inagaki, Ryuichiro Togashi
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Publication number: 20140076870Abstract: [Object] To provide a laser processing apparatus and a laser processing method which are capable of reducing roughness of a cut surface in laser cutting using laser beams transmitted through optical fibers. [Solution] A laser processing apparatus according to the present invention includes at least one laser oscillator configured to emit laser beams, a plurality of optical fibers configured to transmit the emitted laser beams, and at least one optical element configured to focus the laser beams emitted from the optical fibers and irradiate a surface of a workpiece with the focused laser beams. At output ends of the optical fibers, the output ends of the plurality of optical fibers are placed in one or a plurality of ring shapes.Type: ApplicationFiled: September 26, 2012Publication date: March 20, 2014Applicant: NIPPON STEEL & SMITOMO METAL CORPORATIONInventors: Koji Hirano, Hirofumi Imai
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Publication number: 20130215914Abstract: A laser apparatus of the present invention has a first laser oscillator that emits a first laser beam; a passive fiber that is a double-clad fiber that transmits the first laser beam through a core; and a second laser oscillator that emits a second laser beam that is coupled into inner cladding of the passive fiber. Additionally, a laser materials processing apparatus of the present invention is provided with the laser apparatus; and an irradiation optical system having a collimating lens and a condenser lens.Type: ApplicationFiled: October 18, 2010Publication date: August 22, 2013Applicant: NIPPON STEEL & SUMITOMO METAL CORPORATIONInventors: Hirofumi Imai, Koji Hirano
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Publication number: 20130160743Abstract: This invention relates to a method producing a common rail excellent in fatigue strength from an inexpensive steel which uses as the material of the common rail a steel for high-strength liquid phase diffusion bonding having good toughness and fatigue strength, which steel contains, in mass %, C: 0.01 to 0.3%, Si: 0.01 to 0.5%, Mn: 0.01 to 3.0%, Cr: 1.0 to 12.0% and Mo: 0.1 to 2.0%, further contains, in mass %, V: 0.01 to 1.0%, B: 0.0003 to 0.01%, Ti: 0.01 to 0.05% and N: 0.001 to 0.01%, has P content limited to 0.03% or less, S content to 0.01% or less and O content to 0.01% or less, further has total content of grain boundary segregated embrittling elements As, Sn, Sb, Pb and Zn limited to 0.015% or less, and a balance of unavoidable impurities and Fe.Type: ApplicationFiled: January 9, 2013Publication date: June 27, 2013Applicant: Nippon Steel CorporationInventors: ATSUSHI SUGIHASHI, KOJI HIRANO, YASUSHI HASEGAWA
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Publication number: 20130118654Abstract: A silicon steel sheet (1) containing Si is cold-rolled. Next, a decarburization annealing (3) of the silicon steel sheet (1) is performed so as to cause a primary recrystallization. Next, the silicon steel sheet (1) is coiled so as to obtain a steel sheet coil (31). Next, an annealing (6) of the steel sheet coil (31) is performed through batch processing so as to cause a secondary recrystallization. Next, the steel sheet coil (31) is uncoiled and flattened. Between the cold-rolling and the obtaining the steel sheet coil (31), a laser beam is irradiated a plurality of times at predetermined intervals on a surface of the silicon steel sheet (1) from one end to the other end of the silicon steel sheet (1) along a sheet width direction (2). When the secondary recrystallization is caused, grain boundaries passing from a front surface to a rear surface of the silicon steel sheet (1) along paths of the laser beams are generated.Type: ApplicationFiled: July 28, 2010Publication date: May 16, 2013Inventors: Tatsuhiko Sakai, Koji Hirano, Satoshi Arai, Yoshiyuki Ushigami
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Patent number: 8354613Abstract: This invention relates to a method producing a common rail excellent in fatigue strength from an inexpensive steel which uses as the material of the common rail a steel for high-strength liquid phase diffusion bonding having good toughness and fatigue strength, which steel contains, in mass %, C: 0.01 to 0.3%, Si: 0.01 to 0.5%, Mn: 0.01 to 3.0%, Cr: 1.0 to 12.0% and Mo: 0.1 to 2.0%, further contains, in mass %, V: 0.01 to 1.0%, B: 0.0003 to 0.01%, Ti: 0.01 to 0.05% and N: 0.001 to 0.01%, has P content limited to 0.03% or less, S content to 0.01% or less and O content to 0.01% or less, further has total content of grain boundary segregated embrittling elements As, Sn, Sb, Pb and Zn limited to 0.015% or less, and a balance of unavoidable impurities and Fe. The steel is used for liquid phase diffusion bonding.Type: GrantFiled: November 12, 2008Date of Patent: January 15, 2013Assignee: Nippon Steel CorporationInventors: Atsushi Sugihashi, Koji Hirano, Yasushi Hasegawa
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Patent number: 8315004Abstract: A data recording apparatus recording data of a CD on an HDD in a manner such that the content of record in the CD is faithfully accounted for and shortening an operation time for a synchronized ripping operation. When the data recording apparatus reads, from the CD, track data managed by track, according to TOC, and records the track data onto the HDD, the data recording apparatus recognizes data unrecorded on the HDD, from among the track data recorded on the CD. This recognition process is automatically performed based on the TOC read from the CD, and album information replayed using the TOC and held by the HDD. The recording apparatus reproduces and outputs only the unrecorded data from the CD based on the recognition result concerning the unrecorded data. In this way, the data already recorded on the HDD is not transferred from the CD to the HDD. The operation time for the synchronized ripping operation is reduced accordingly.Type: GrantFiled: January 14, 2011Date of Patent: November 20, 2012Assignee: Sony CorporationInventors: Koji Hirano, Shoji Inagaki, Ryuichiro Togashi
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Publication number: 20110109985Abstract: A data recording apparatus recording data of a CD on an HDD in a manner such that the content of record in the CD is faithfully accounted for and shortening an operation time for a synchronized ripping operation. When the data recording apparatus reads, from the CD, track data managed by track, according to TOC, and records the track data onto the HDD, the data recording apparatus recognizes data unrecorded on the HDD, from among the track data recorded on the CD. This recognition process is automatically performed based on the TOC read from the CD, and album information replayed using the TOC and held by the HDD. The recording apparatus reproduces and outputs only the unrecorded data from the CD based on the recognition result concerning the unrecorded data. In this way, the data already recorded on the HDD is not transferred from the CD to the HDD. The operation time for the synchronized ripping operation is reduced accordingly.Type: ApplicationFiled: January 14, 2011Publication date: May 12, 2011Applicant: Sony CorporationInventors: Koji HIRANO, Shoji Inagaki, Ryuichiro Togashi
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Patent number: 7903362Abstract: A data recording apparatus recording data of a CD on an HDD in a manner such that the content of record in the CD is faithfully accounted for and shortening an operation time for a synchronized ripping operation. When the data recording apparatus reads, from the CD, track data managed by track, according to TOC, and records the track data onto the HDD, the data recording apparatus recognizes data unrecorded on the HDD, from among the track data recorded on the CD. This recognition process is automatically performed based on the TOC read from the CD, and album information replayed using the TOC and held by the HDD. The recording apparatus reproduces and outputs only the unrecorded data from the CD based on the recognition result concerning the unrecorded data. In this way, the data already recorded on the HDD is not transferred from the CD to the HDD. The operation time for the synchronized ripping operation is reduced accordingly.Type: GrantFiled: April 22, 2009Date of Patent: March 8, 2011Assignee: Sony CorporationInventors: Koji Hirano, Shoji Inagaki, Ryuichiro Togashi
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Publication number: 20110005493Abstract: The present invention provides a method of producing a common rail having a common rail body and a holder which include chemical components of 0.01-0.3 mass % of C, 0.01-0.5 mass % of Si, 0.01-3.0 mass % of Mn, 0.0003-0.01 mass % of B, 0.001-0.01 mass % of N, over 0.01-0.5 mass % of Al, 0.01-0.05 mass % of Ti, P limited to 0.03 mass % or less, S limited to 0.01 mass % or less, O limited to 0.01 mass % or less, a total content of As, Sn, Sb, Pb, and Zn limited to 0.015 mass % or less, the balance including Fe and inevitable impurities, in which the TLB value is 0.001% or more, the method including: inserting an insert metal; performing liquid phase diffusion bonding; performing laser-peening; and removing a surface layer.Type: ApplicationFiled: March 5, 2010Publication date: January 13, 2011Inventors: Koji Hirano, Atsushi Sugihashi, Hirofumi Imai, Yasushi Hasegawa
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Patent number: 7841838Abstract: A rotary closed type compressor is configured such that an inside of a case becomes high pressure, and the rotary closed type compressor comprises a first cylinder and a second cylinder having cylinder chambers in which eccentric rollers are housed, respectively, vanes which divide the cylinder chamber into two sections, respectively, and vane chambers in which back-face side end portions of the vanes are housed, respectively. The vane on the first cylinder side is pressed and biased by a spring member provided in the vane chamber, and the vane on the second cylinder side is pressed and biased according to pressure difference between case internal pressure introduced to the vane chamber and suction pressure or discharge pressure introduced to the cylinder chamber.Type: GrantFiled: September 7, 2005Date of Patent: November 30, 2010Assignee: Toshiba Carrier CorporationInventors: Isao Kawabe, Kazuo Mochizuki, Shoichiro Kitaichi, Koji Hirano, Izumi Onoda, Kazu Takashima
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Publication number: 20100055490Abstract: This invention relates to a method producing a common rail excellent in fatigue strength from an inexpensive steel which uses as the material of the common rail a steel for high-strength liquid phase diffusion bonding having good toughness and fatigue strength, which steel contains, in mass %, C: 0.01 to 0.3%, Si: 0.01 to 0.5%, Mn: 0.01 to 3.0%, Cr: 1.0 to 12.0% and Mo: 0.1 to 2.0%, further contains, in mass %, V: 0.01 to 1.0%, B: 0.0003 to 0.01%, Ti: 0.01 to 0.05% and N: 0.001 to 0.01%, has P content limited to 0.03% or less, S content to 0.01% or less and O content to 0.01% or less, further has total content of grain boundary segregated embrittling elements As, Sn, Sb, Pb and Zn limited to 0.015% or less, and a balance of unavoidable impurities and Fe. The steel is used for liquid phase diffusion bonding.Type: ApplicationFiled: November 12, 2008Publication date: March 4, 2010Inventors: Atsushi Sugihashi, Koji Hirano, Yasushi Hasegawa
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Publication number: 20090207704Abstract: A data recording apparatus recording data of a CD on an HDD in a manner such that the content of record in the CD is faithfully accounted for and shortening an operation time for a synchronized ripping operation. When the data recording apparatus reads, from the CD, track data managed by track, according to TOC, and records the track data onto the HDD, the data recording apparatus recognizes data unrecorded on the HDD, from among the track data recorded on the CD. This recognition process is automatically performed based on the TOC read from the CD, and album information replayed using the TOC and held by the HDD. The recording apparatus reproduces and outputs only the unrecorded data from the CD based on the recognition result concerning the unrecorded data. In this way, the data already recorded on the HDD is not transferred from the CD to the HDD. The operation time for the synchronized ripping operation is reduced accordingly.Type: ApplicationFiled: April 22, 2009Publication date: August 20, 2009Applicant: SONY CORPORATIONInventors: Koji Hirano, Shoji Inagaki, Ryuichiro Togashi
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Patent number: D599250Type: GrantFiled: May 1, 2007Date of Patent: September 1, 2009Assignee: Suzuki Motor CorporationInventor: Koji Hirano