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).

  • Patent number: 10300558
    Abstract: 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: Grant
    Filed: April 26, 2016
    Date of Patent: May 28, 2019
    Assignee: AMADA HOLDINGS CO., LTD.
    Inventors: Hiroshi Sako, Hiroaki Ishiguro, Akihiko Sugiyama, Yuya Mizoguchi
  • Patent number: 10199136
    Abstract: 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: Grant
    Filed: November 13, 2014
    Date of Patent: February 5, 2019
    Assignee: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Takahiro Mabuchi, Shigeyuki Yamamoto, Makoto Tsukiji, Hiroshi Sako
  • Patent number: 10118256
    Abstract: 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: Grant
    Filed: September 17, 2015
    Date of Patent: November 6, 2018
    Assignee: AMADA HOLDINGS CO., LTD.
    Inventors: Hiroaki Ishiguro, Akihiko Sugiyama, Hiroshi Sako
  • Patent number: 10048310
    Abstract: 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: Grant
    Filed: September 17, 2014
    Date of Patent: August 14, 2018
    Assignee: MITSUBISHI ELECTRIC CORPORATION
    Inventor: Hiroshi Sako
  • Publication number: 20180169792
    Abstract: 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: Application
    Filed: April 26, 2016
    Publication date: June 21, 2018
    Applicant: AMADA HOLDINGS CO., LTD.
    Inventors: Hiroshi SAKO, Hiroaki ISHIGURO, Akihiko SUGIYAMA, Yuya MIZOGUCHI
  • Patent number: 9925744
    Abstract: 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: Grant
    Filed: December 11, 2013
    Date of Patent: March 27, 2018
    Assignee: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Takahiro Mabuchi, Shigeyuki Yamamoto, Makoto Tsukiji, Hiroshi Sako
  • Patent number: 9863995
    Abstract: 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: Grant
    Filed: January 8, 2013
    Date of Patent: January 9, 2018
    Assignee: MITSUBISHI ELECTRIC CORPORATION
    Inventor: Hiroshi Sako
  • Publication number: 20170291262
    Abstract: 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: Application
    Filed: September 17, 2015
    Publication date: October 12, 2017
    Applicants: AMADA HOLDINGS CO., LTD., AMADA HOLDINGS CO., LTD.
    Inventors: Hiroaki ISHIGURO, Akihiko SUGIYAMA, Hiroshi SAKO
  • Publication number: 20170192048
    Abstract: 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: Application
    Filed: September 17, 2014
    Publication date: July 6, 2017
    Applicant: Mitsubishi Electric Corporation
    Inventor: Hiroshi SAKO
  • Patent number: 9548583
    Abstract: 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: Grant
    Filed: April 5, 2013
    Date of Patent: January 17, 2017
    Assignee: AMADA COMPANY, LIMITED
    Inventors: Keishi Tanaka, Hiroshi Sako, Asami Morino
  • Publication number: 20160329123
    Abstract: 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: Application
    Filed: November 13, 2014
    Publication date: November 10, 2016
    Applicant: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Takahiro MABUCHI, Shigeyuki YAMAMOTO, Makoto TSUKIJI, Hiroshi SAKO
  • Publication number: 20150333467
    Abstract: 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: Application
    Filed: April 5, 2013
    Publication date: November 19, 2015
    Applicant: AMADA COMPANY, LIMITED
    Inventors: Keishi TANAKA, Hiroshi SAKO, Asami MORINO
  • Publication number: 20150285849
    Abstract: 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: Application
    Filed: January 8, 2013
    Publication date: October 8, 2015
    Applicant: Mitsubishi Electric Corporation
    Inventor: Hiroshi SAKO
  • Publication number: 20150273800
    Abstract: 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: Application
    Filed: December 11, 2013
    Publication date: October 1, 2015
    Applicant: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Takahiro Mabuchi, Shigeyuki Yamamoto, Makoto Tsukiji, Hiroshi Sako
  • Patent number: 8155423
    Abstract: 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: Grant
    Filed: January 18, 2011
    Date of Patent: April 10, 2012
    Assignee: Hitachi-Omron Terminal Solutions Corp.
    Inventors: Tatsuhiko Kagehiro, Hiroto Nagayoshi, Hiroshi Sako, Toshiro Uemura, Yuji Nagaya
  • Patent number: 8126296
    Abstract: 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: Grant
    Filed: July 10, 2008
    Date of Patent: February 28, 2012
    Assignee: Hitachi-Omron Terminal Solutions, Corporation
    Inventors: Takashi Watanabe, Hiroshi Sako, Hiroto Nagayoshi, Toshiro Uemura
  • Patent number: 8116597
    Abstract: 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: Grant
    Filed: February 13, 2009
    Date of Patent: February 14, 2012
    Assignee: Hitachi-Omron Terminal Solutions, Corporation
    Inventors: Takashi Watanabe, Hiroshi Sako, Hiroto Nagayoshi, Toshiro Uemura
  • Publication number: 20110125641
    Abstract: 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: Application
    Filed: January 18, 2011
    Publication date: May 26, 2011
    Applicant: HITACHI-OMRON TERMINAL SOLUTIONS CORP.
    Inventors: Tatsuhiko Kagehiro, Hiroto Nagayoshi, Hiroshi Sako, Toshiro Uemura, Yuji Nagaya
  • Patent number: 7899233
    Abstract: 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: Grant
    Filed: November 19, 2003
    Date of Patent: March 1, 2011
    Assignee: Hitachi-Omron Terminal Solutions Corp.
    Inventors: Tatsuhiko Kagehiro, Hiroto Nagayoshi, Hiroshi Sako, Toshiro Uemura, Yuji Nagaya
  • Publication number: 20090154765
    Abstract: 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: Application
    Filed: February 13, 2009
    Publication date: June 18, 2009
    Inventors: Takashi Watanabe, Hiroshi SAKO, Hiroto Nagayoshi, Toshiro Uemura