Patents by Inventor Hiroshi Sako
Hiroshi Sako 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: 10300558Abstract: A laser processing machine includes a laser oscillator. The laser oscillator excites a laser beam having a wavelength in a 1 ?m band or a shorter wavelength band. One process fiber transmits the laser beam emitted from the laser oscillator. A focusing optical element focuses, when a workpiece is irradiated with the laser beam emitted from the process fiber, the laser beam on a plurality of spots in a unit area within a unit time, the unit area having a radius of 0.5 mm of an optical axis of the laser beam, and the unit time being a time from when the workpiece starts to melt to when the melting of the workpiece ends.Type: GrantFiled: April 26, 2016Date of Patent: May 28, 2019Assignee: AMADA HOLDINGS CO., LTD.Inventors: Hiroshi Sako, Hiroaki Ishiguro, Akihiko Sugiyama, Yuya Mizoguchi
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Patent number: 10199136Abstract: An insulating tape having a mica layer, a reinforcing layer having a filler and a fiber reinforcing material laminated on the mica layer, and a cellulose derivative layer laminated on the reinforcing layer is provided. One or more hydroxyl groups in the glucose units of the cellulose derivative are substituted with a functional group such as —CH2CH2OH or —(CH2CH2O)pH (where p is any repeating number up to 50). The weight per unit area of the mica ranges from 100 g/m2 to 200 g/m2. The filler has a maximum particle size of 100 ?m or smaller and a weight per unit area ranging from 10 g/m2 to 50 g/m2. The insulating tape is useful to form a stator coil insulating layer with high thermal conductivity, with no outflow of a filler to the exterior during production of the stator coil, and with enhanced bonding strength.Type: GrantFiled: November 13, 2014Date of Patent: February 5, 2019Assignee: MITSUBISHI ELECTRIC CORPORATIONInventors: Takahiro Mabuchi, Shigeyuki Yamamoto, Makoto Tsukiji, Hiroshi Sako
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Patent number: 10118256Abstract: Using a transmission fiber for transmitting laser beams of multiple wavelengths oscillated by a DDL module, and a laser processing machine for cutting a sheet metal with a processing head that condenses the laser beams of multiple wavelengths and irradiates them onto the sheet metal, a mild steel plate or an aluminum plate is cut, and by cutting a mild steel plate with a thickness greater than or equal to 1 mm and less than or equal to 5 mm, a surface roughness (Ra) of a cut surface of the cut mild steel plate is less than or equal to 0.4 ?m, and when an aluminum plate with a thickness greater than or equal to 1 mm and less than or equal to 5 mm is cut, a surface roughness (Ra) of a cut surface of the cut aluminum plate is less than or equal to 2.5 ?m.Type: GrantFiled: September 17, 2015Date of Patent: November 6, 2018Assignee: AMADA HOLDINGS CO., LTD.Inventors: Hiroaki Ishiguro, Akihiko Sugiyama, Hiroshi Sako
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Patent number: 10048310Abstract: A partial discharge signal processing device of the present invention is provided with: a partial discharge signal receiving unit disposed inside a high voltage electric machine device; a partial discharge signal processing unit; and a coaxial cable connecting the partial discharge signal receiving unit and the partial discharge signal processing unit. In addition, the partial discharge signal receiving unit comprises an electromagnetic wave receiving unit that receives electromagnetic waves generated by partial discharge. Further, the partial discharge signal processing unit comprises: a detection unit that detects a partial discharge signal transmitted through the coaxial cable; a band limiting unit that limits the frequency bandwidth of the partial discharge signal; an attenuation amount correction unit that corrects an attenuated partial discharge signal; and a signal output unit that outputs, to an external device, the corrected partial discharge signal.Type: GrantFiled: September 17, 2014Date of Patent: August 14, 2018Assignee: MITSUBISHI ELECTRIC CORPORATIONInventor: Hiroshi Sako
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Publication number: 20180169792Abstract: A laser processing machine includes a laser oscillator. The laser oscillator excites a laser beam having a wavelength in a 1 ?m band or a shorter wavelength band. One process fiber transmits the laser beam emitted from the laser oscillator. A focusing optical element focuses, when a workpiece is irradiated with the laser beam emitted from the process fiber, the laser beam on a plurality of spots in a unit area within a unit time, the unit area having a radius of 0.5 mm of an optical axis of the laser beam, and the unit time being a time from when the workpiece starts to melt to when the melting of the workpiece ends.Type: ApplicationFiled: April 26, 2016Publication date: June 21, 2018Applicant: AMADA HOLDINGS CO., LTD.Inventors: Hiroshi SAKO, Hiroaki ISHIGURO, Akihiko SUGIYAMA, Yuya MIZOGUCHI
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Patent number: 9925744Abstract: An insulating tape including: a mica layer containing mica; a reinforcing layer that is laminated onto the mica layer and contains a filler and a fibrous reinforcing material; and a flat sheet layer that is laminated onto the reinforcing layer and contains flat sheet-shaped inorganic particles having an aspect ratio of at least 30. In this insulating tape, the filler is supported in advance, and does not therefore flow out during manufacture of a stator coil, for example during hot-pressing. As a result, an insulating coating exhibiting high thermal conductivity can be formed.Type: GrantFiled: December 11, 2013Date of Patent: March 27, 2018Assignee: MITSUBISHI ELECTRIC CORPORATIONInventors: Takahiro Mabuchi, Shigeyuki Yamamoto, Makoto Tsukiji, Hiroshi Sako
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Patent number: 9863995Abstract: A penetration terminal for connecting the coaxial cables inside and outside of the apparatus thereto is attached on the electric apparatus' frame, and the measurement of a combined capacitance of the antenna and the coaxial cable in the inner side of the apparatus is made possible from the outer side of the apparatus, so that it is possible to perform at any time the determination whether a wiring connection of the antenna mounted in the inner side of the electric apparatus is appropriate.Type: GrantFiled: January 8, 2013Date of Patent: January 9, 2018Assignee: MITSUBISHI ELECTRIC CORPORATIONInventor: Hiroshi Sako
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Publication number: 20170291262Abstract: Using a transmission fiber for transmitting laser beams of multiple wavelengths oscillated by a DDL module, and a laser processing machine for cutting a sheet metal with a processing head that condenses the laser beams of multiple wavelengths and irradiates them onto the sheet metal, a mild steel plate or an aluminum plate is cut, and by cutting a mild steel plate with a thickness greater than or equal to 1 mm and less than or equal to 5 mm, a surface roughness (Ra) of a cut surface of the cut mild steel plate is less than or equal to 0.4 ?m, and when an aluminum plate with a thickness greater than or equal to 1 mm and less than or equal to 5 mm is cut, a surface roughness (Ra) of a cut surface of the cut aluminum plate is less than or equal to 2.5 ?m.Type: ApplicationFiled: September 17, 2015Publication date: October 12, 2017Applicants: AMADA HOLDINGS CO., LTD., AMADA HOLDINGS CO., LTD.Inventors: Hiroaki ISHIGURO, Akihiko SUGIYAMA, Hiroshi SAKO
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Publication number: 20170192048Abstract: A partial discharge signal processing device of the present invention is provided with: a partial discharge signal receiving unit disposed inside a high voltage electric machine device; a partial discharge signal processing unit; and a coaxial cable connecting the partial discharge signal receiving unit and the partial discharge signal processing unit. In addition, the partial discharge signal receiving unit comprises an electromagnetic wave receiving unit that receives electromagnetic waves generated by partial discharge. Further, the partial discharge signal processing unit comprises: a detection unit that detects a partial discharge signal transmitted through the coaxial cable; a band limiting unit that limits the frequency bandwidth of the partial discharge signal; an attenuation amount correction unit that corrects an attenuated partial discharge signal; and a signal output unit that outputs, to an external device, the corrected partial discharge signal.Type: ApplicationFiled: September 17, 2014Publication date: July 6, 2017Applicant: Mitsubishi Electric CorporationInventor: Hiroshi SAKO
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Patent number: 9548583Abstract: A fiber laser processing device includes: an air purge unit having a low-dew-pointizer section for changing compressed air for purging supplied from the exterior into dry air with a low dew point by means of a gas separation membrane module; a fiber laser oscillator having a combiner for combining and emitting the laser lights respectively outputted from the plurality of fiber laser modules to the exterior, and a distributor for distributing and supplying the dry air respectively to the plurality of fiber laser modules; and a laser processing machine for carrying out laser machining on a workpiece by means of the laser lights emitted from the combiner.Type: GrantFiled: April 5, 2013Date of Patent: January 17, 2017Assignee: AMADA COMPANY, LIMITEDInventors: Keishi Tanaka, Hiroshi Sako, Asami Morino
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Publication number: 20160329123Abstract: The insulating tape of the present invention includes a mica layer containing mica, a reinforcing layer laminated on the mica layer and containing a filler and a fiber reinforcing material, and a cellulose derivative layer laminated on the reinforcing layer. The cellulose derivative layer contains a cellulose derivative in which one or more hydroxyl groups in the glucose units are substituted with a functional group such as —CH2CH2OH or —(CH2CH2O)pH (in the formula, p is any repeating number greater than 0 up to 50). The weight per unit area of the mica ranges from 100 g/m2 to 200 g/m2. The filler has a maximum particle size of 100 ?m or smaller and a weight per unit area ranging from 10 g/m2 to 50 g/m2.Type: ApplicationFiled: November 13, 2014Publication date: November 10, 2016Applicant: MITSUBISHI ELECTRIC CORPORATIONInventors: Takahiro MABUCHI, Shigeyuki YAMAMOTO, Makoto TSUKIJI, Hiroshi SAKO
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Publication number: 20150333467Abstract: A fiber laser processing device includes: an air purge unit having a low-dew-pointizer section for changing compressed air for purging supplied from the exterior into dry air with a low dew point by means of a gas separation membrane module; a fiber laser oscillator having a combiner for combining and emitting the laser lights respectively outputted from the plurality of fiber laser modules to the exterior, and a distributor for distributing and supplying the dry air respectively to the plurality of fiber laser modules; and a laser processing machine for carrying out laser machining on a workpiece by means of the laser lights emitted from the combiner.Type: ApplicationFiled: April 5, 2013Publication date: November 19, 2015Applicant: AMADA COMPANY, LIMITEDInventors: Keishi TANAKA, Hiroshi SAKO, Asami MORINO
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Publication number: 20150285849Abstract: A penetration terminal for connecting the coaxial cables inside and outside of the apparatus thereto is attached on the electric apparatus' frame, and the measurement of a combined capacitance of the antenna and the coaxial cable in the inner side of the apparatus is made possible from the outer side of the apparatus, so that it is possible to perform at any time the determination whether a wiring connection of the antenna mounted in the inner side of the electric apparatus is appropriate.Type: ApplicationFiled: January 8, 2013Publication date: October 8, 2015Applicant: Mitsubishi Electric CorporationInventor: Hiroshi SAKO
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Publication number: 20150273800Abstract: An insulating tape including: a mica layer containing mica; a reinforcing layer that is laminated onto the mica layer and contains a filler and a fibrous reinforcing material; and a flat sheet layer that is laminated onto the reinforcing layer and contains flat sheet-shaped inorganic particles having an aspect ratio of at least 30. In this insulating tape, the filler is supported in advance, and does not therefore flow out during manufacture of a stator coil, for example during hot-pressing. As a result, an insulating coating exhibiting high thermal conductivity can be formed.Type: ApplicationFiled: December 11, 2013Publication date: October 1, 2015Applicant: MITSUBISHI ELECTRIC CORPORATIONInventors: Takahiro Mabuchi, Shigeyuki Yamamoto, Makoto Tsukiji, Hiroshi Sako
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Patent number: 8155423Abstract: A system and method are provided for tracing bank notes or, specifically, counterfeit money. In one example of the tracing system, an automatic teller machine (ATM) electronically connected to one or more devices is provided. The one or more devices comprise a deposit device configured to receive an initial bank note; an image extraction device configured to extract one or more initial images from the initial bank note; a transaction log device configured to attach a transaction log to the one or more initial images, wherein the deposit device is further configured to receive a subsequent bank note, wherein the image extraction device is further configured to extract one or more subsequent images from the subsequent bank note; and a comparison device configured to compare the one or initial images to the one or more subsequent images in order to obtain a comparison result.Type: GrantFiled: January 18, 2011Date of Patent: April 10, 2012Assignee: Hitachi-Omron Terminal Solutions Corp.Inventors: Tatsuhiko Kagehiro, Hiroto Nagayoshi, Hiroshi Sako, Toshiro Uemura, Yuji Nagaya
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Patent number: 8126296Abstract: In order to prevent interception of the information through the leakage electromagnetic waves when transmitting the information using an image display unit, an image converter generates plural converted images, stores the generated converted images in an image storage, an image output unit reads out the converted images from the image storage and transmits the converted images to a screen control unit successively. The screen control unit displays a reception image on an image display unit. The image output unit outputs the converted image group at a high speed, thereby performing a switching display on the image display unit, and to show an image visually equivalent to the input image.Type: GrantFiled: July 10, 2008Date of Patent: February 28, 2012Assignee: Hitachi-Omron Terminal Solutions, CorporationInventors: Takashi Watanabe, Hiroshi Sako, Hiroto Nagayoshi, Toshiro Uemura
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Patent number: 8116597Abstract: In order to prevent interception of information through leakage electromagnetic waves when transmitting the information using an image display unit, an image converter generates plural converted images, stores the generated converted images in an image storage, an image output unit reads out the converted images from the image storage and transmits the converted images to a screen control unit successively. The screen control unit displays a reception image on an image display unit. The image output unit outputs the converted image group at a high speed, thereby performing a switching display on the image display unit, and shows an image visually equivalent to the input image.Type: GrantFiled: February 13, 2009Date of Patent: February 14, 2012Assignee: Hitachi-Omron Terminal Solutions, CorporationInventors: Takashi Watanabe, Hiroshi Sako, Hiroto Nagayoshi, Toshiro Uemura
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Publication number: 20110125641Abstract: A system and method are provided for tracing bank notes or, specifically, counterfeit money. In one example of the tracing system, an automatic teller machine (ATM) electronically connected to one or more devices is provided. The one or more devices comprise a deposit device configured to receive an initial bank note; an image extraction device configured to extract one or more initial images from the initial bank note; a transaction log device configured to attach a transaction log to the one or more initial images, wherein the deposit device is further configured to receive a subsequent bank note, wherein the image extraction device is further configured to extract one or more subsequent images from the subsequent bank note; and a comparison device configured to compare the one or initial images to the one or more subsequent images in order to obtain a comparison result.Type: ApplicationFiled: January 18, 2011Publication date: May 26, 2011Applicant: HITACHI-OMRON TERMINAL SOLUTIONS CORP.Inventors: Tatsuhiko Kagehiro, Hiroto Nagayoshi, Hiroshi Sako, Toshiro Uemura, Yuji Nagaya
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Patent number: 7899233Abstract: A system and method are provided for tracing bank notes or, specifically, counterfeit money. In one example of the tracing system, an automatic teller machine (ATM) electronically connected to one or more devices is provided. The one or more devices comprise a deposit device configured to receive an initial bank note; an image extraction device configured to extract one or more initial images from the initial bank note; a transaction log device configured to attach a transaction log to the one or more initial images, wherein the deposit device is further configured to receive a subsequent bank note, wherein the image extraction device is further configured to extract one or more subsequent images from the subsequent bank note; and a comparison device configured to compare the one or initial images to the one or more subsequent images in order to obtain a comparison result.Type: GrantFiled: November 19, 2003Date of Patent: March 1, 2011Assignee: Hitachi-Omron Terminal Solutions Corp.Inventors: Tatsuhiko Kagehiro, Hiroto Nagayoshi, Hiroshi Sako, Toshiro Uemura, Yuji Nagaya
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Publication number: 20090154765Abstract: In order to prevent interception of information through leakage electromagnetic waves when transmitting the information using an image display unit, an image converter generates plural converted images, stores the generated converted images in an image storage, an image output unit reads out the converted images from the image storage and transmits the converted images to a screen control unit successively. The screen control unit displays a reception image on an image display unit. The image output unit outputs the converted image group at a high speed, thereby performing a switching display on the image display unit, and shows an image visually equivalent to the input image.Type: ApplicationFiled: February 13, 2009Publication date: June 18, 2009Inventors: Takashi Watanabe, Hiroshi SAKO, Hiroto Nagayoshi, Toshiro Uemura