Patents by Inventor Shigemasa Sato
Shigemasa Sato 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: 9544988Abstract: A boiling refrigerant type cooling system to suppress overshoot upon start of heat generation and realize stable start of boiling. In the boiling refrigerant type cooling system, a metal boiling heat transfer unit has a base in thermal contact with a heat generating body. The boiling heat transfer unit is in contact with a liquid refrigerant. The boiling heat transfer unit has plural parallel tunnels communicating with the outside via holes or gaps under its surface, a groove deeper than a tunnel diameter formed through all the tunnels in an orthogonal direction to the tunnels, and a cover plate on the groove.Type: GrantFiled: November 24, 2014Date of Patent: January 10, 2017Assignee: HITACHI, LTD.Inventors: Kazuaki Suzuki, Shigemasa Sato, Akio Idei
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Publication number: 20150103486Abstract: To provide a phase change module as a cooling system capable of saving energy and miniaturizing of the cooling system utilizing a thermo siphon, and an electronic device suitable to mounting such a phase change module. The phase change module 300 includes a jacket case 312 attached with an evaporator surface 311 with the evaporator surface 311 being arranged on a heat generating body, a radiator case 321 attached with cooling fins (radiator) 322 arranged at a position departing from the heat generating body, and a connecting plate 330 that connects the jacket case 312 and the radiator case 321, in which holes are bored in the connecting plate 330 at a position where the jacket case 312 and the radiator case 321 overlap.Type: ApplicationFiled: October 8, 2014Publication date: April 16, 2015Inventors: Yoshihiro KONDOU, Fumio TAKEDA, Shigemasa SATO, Shigeyasu TSUBAKI, Takayuki FUJIMOTO
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Publication number: 20150075200Abstract: A boiling refrigerant type cooling system to suppress overshoot upon start of heat generation and realize stable start of boiling. In the boiling refrigerant type cooling system, a metal boiling heat transfer unit has a base in thermal contact with a heat generating body. The boiling heat transfer unit is in contact with a liquid refrigerant. The boiling heat transfer unit has plural parallel tunnels communicating with the outside via holes or gaps under its surface, a groove deeper than a tunnel diameter formed through all the tunnels in an orthogonal direction to the tunnels, and a cover plate on the groove.Type: ApplicationFiled: November 24, 2014Publication date: March 19, 2015Applicant: HITACHI, LTD.Inventors: Kazuaki SUZUKI, Shigemasa SATO, Akio IDEI
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Patent number: 8929073Abstract: A boiling refrigerant type cooling system to suppress overshoot upon start of heat generation and realize stable start of boiling. In the boiling refrigerant type cooling system, a metal boiling heat transfer unit has a base in thermal contact with a heat generating body. The boiling heat transfer unit is in contact with a liquid refrigerant. The boiling heat transfer unit has plural parallel tunnels communicating with the outside via holes or gaps under its surface, a groove deeper than a tunnel diameter formed through all the tunnels in an orthogonal direction to the tunnels, and a cover plate on the groove.Type: GrantFiled: June 12, 2012Date of Patent: January 6, 2015Assignee: Hitachi, Ltd.Inventors: Kazuaki Suzuki, Shigemasa Sato, Akio Idei
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Patent number: 8767399Abstract: The cooling system includes: a frame; a plurality of electronic devices disposed in the frame and operating or functioning independently from each other; fans disposed in the frame and supplying cooling air to the electronic devices; a temperature acquiring portion for acquiring the temperature of the cooling air; an air-flow resistance adjusting portion for adjusting the air-flow resistance to the cooling air; and a controller for controlling the fans and the each air-flow resistance adjusting portion. The controller determines each target cooling air volume required for cooling each electronic device to a predetermined temperature based on temperature information acquired by the temperature acquiring portion and heat generation information on each electronic device, controls each air-flow resistance adjusting portion to set the volume of cooling air to each target cooling air volume, and performs the drive control of the fans to set the volume of cooling air to the minimum necessary.Type: GrantFiled: June 20, 2012Date of Patent: July 1, 2014Assignee: Hitachi, Ltd.Inventors: Akira Goto, Shigemasa Sato
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Patent number: 8730339Abstract: An image-capturing device includes: an instruction unit that issues a photographing instruction signal; an image sensor that obtains frame images over predetermined time intervals; a storage unit into which a plurality of frame images obtained via the image sensor are sequentially stored; a save candidate designation unit that designates a plurality of frame images obtained before and after an output of the photographing instruction signal among a plurality of frame images stored in the storage unit as save candidate images that may be saved into a recording medium; and a control unit that controls the save candidate designation unit so as to designate as the save candidates a plurality of frame images obtained before and after a second photographing instruction signal issued within a predetermined length of time following the output of the photographing instruction signal.Type: GrantFiled: February 18, 2010Date of Patent: May 20, 2014Assignee: Nikon CorporationInventors: Shigemasa Sato, Akihiko Takahashi, Setsu Mitsuhashi, Tetsuo In
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Publication number: 20130083481Abstract: The cooling system includes: a frame; a plurality of electronic devices disposed in the frame and operating or functioning independently from each other; fans disposed in the frame and supplying cooling air to the electronic devices; a temperature acquiring portion for acquiring the temperature of the cooling air; an air-flow resistance adjusting portion for adjusting the air-flow resistance to the cooling air; and a controller for controlling the fans and the each air-flow resistance adjusting portion. The controller determines each target cooling air volume required for cooling each electronic device to a predetermined temperature based on temperature information acquired by the temperature acquiring portion and heat generation information on each electronic device, controls each air-flow resistance adjusting portion to set the volume of cooling air to each target cooling air volume, and performs the drive control of the fans to set the volume of cooling air to the minimum necessary.Type: ApplicationFiled: June 20, 2012Publication date: April 4, 2013Applicant: HITACHI, LTD.Inventors: Akira GOTO, Shigemasa SATO
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Publication number: 20120312504Abstract: A boiling refrigerant type cooling system to suppress overshoot upon start of heat generation and realize stable start of boiling. In the boiling refrigerant type cooling system, a metal boiling heat transfer unit has a base in thermal contact with a heat generating body. The boiling heat transfer unit is in contact with a liquid refrigerant. The boiling heat transfer unit has plural parallel tunnels communicating with the outside via holes or gaps under its surface, a groove deeper than a tunnel diameter formed through all the tunnels in an orthogonal direction to the tunnels, and a cover plate on the groove.Type: ApplicationFiled: June 12, 2012Publication date: December 13, 2012Applicant: HITACHI, LTD.Inventors: Kazuaki Suzuki, Shigemasa Sato, Akio Idei
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Publication number: 20120002076Abstract: A camera includes: a photographing unit that generates image files by consecutively capturing subject images at an electronic shutter speed high enough to ensure that no image blur occurs in the subject images; an image file recording unit that records image files into a storage medium; a setting unit that sets a movie image frame rate; a synthetic image generation unit that generates a plurality of synthetic images each by combining sets of image data in image files among a plurality of image files generated by the photographing unit, a quantity of the sets of image data being set by taking into consideration the frame rate set by the setting unit; and a movie image file generation unit that generates a movie image file containing a movie image, each frame of the movie image being constituted with one of the synthetic images.Type: ApplicationFiled: June 29, 2011Publication date: January 5, 2012Applicant: NIKON CORPORATIONInventors: Akihiko TAKAHASHI, Shigemasa SATO
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Publication number: 20110164147Abstract: An imaging apparatus includes: an instruction unit that issues a photographing instruction signal; an image sensor that obtains frame images over predetermined time intervals; a storage unit in which a plurality of the frame images obtained via the image sensor are sequentially stored; a save candidate determining unit that designates, among the plurality of the frame images stored in the storage unit, a plurality of the frame images obtained before and after an issue of the photographing instruction signal as candidates of images to be saved into a recording medium; and a candidate number determining unit that automatically determines, based upon specific information, a candidate number of the frame images that are to be designated as candidates by the save candidate determining unit.Type: ApplicationFiled: September 23, 2010Publication date: July 7, 2011Applicant: NIKON CORPORATIONInventors: Akihiko TAKAHASHI, Shigemasa SATO
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Patent number: 7955747Abstract: Described is an electronic device and an electronic device control method. If voltage generated by the fuel cell, acquired from the voltage detection part, is greater than a specified voltage reference value (VRV), a display part displays the fuel cell as normal. However, if the generated voltage is smaller than the VRV, the residual fuel amount (RFA) detection part detects the RFA. If the RFA is smaller than a specified fuel reference value (FRV), the display part displays that the fuel is insufficient. However, if the RFA is greater than the FRV, the oxidizing agent concentration (OAC) detection part detects the OAC of the fuel cell. If the OAC is smaller than a specified OAC reference value, the display part displays that the oxidizing agent is insufficient. However, if the OAC is greater than the OAC reference value, the display part displays that the fuel cell is abnormal.Type: GrantFiled: October 21, 2009Date of Patent: June 7, 2011Assignee: Nikon CorporationInventors: Shigemasa Sato, Takao Goto, Akio Nishizawa
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Publication number: 20100225784Abstract: An image-capturing device includes: an instruction unit that issues a photographing instruction signal; an image sensor that obtains frame images over predetermined time intervals; a storage unit into which a plurality of frame images obtained via the image sensor are sequentially stored; a save candidate designation unit that designates a plurality of frame images obtained before and after an output of the photographing instruction signal among a plurality of frame images stored in the storage unit as save candidate images that may be saved into a recording medium; and a control unit that controls the save candidate designation unit so as to designate as the save candidates a plurality of frame images obtained before and after a second photographing instruction signal issued within a predetermined length of time following the output of the photographing instruction signal.Type: ApplicationFiled: February 18, 2010Publication date: September 9, 2010Applicant: NIKON CORPORATIONInventors: Shigemasa SATO, Akihiko TAKAHASHI, Setsu MITSUHASHI, Tetsuo IN
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Publication number: 20100086816Abstract: Described is an electronic device and an electronic device control method. If voltage generated by the fuel cell, acquired from the voltage detection part, is greater than a specified voltage reference value (VRV), a display part displays the fuel cell as normal. However, if the generated voltage is smaller than the VRV, the residual fuel amount (RFA) detection part detects the RFA. If the RFA is smaller than a specified fuel reference value (FRV), the display part displays that the fuel is insufficient. However, if the RFA is greater than the FRV, the oxidizing agent concentration (OAC) detection part detects the OAC of the fuel cell. If the OAC is smaller than a specified OAC reference value, the display part displays that the oxidizing agent is insufficient. However, if the OAC is greater than the OAC reference value, the display part displays that the fuel cell is abnormal.Type: ApplicationFiled: October 21, 2009Publication date: April 8, 2010Applicant: NIKON CORPORATIONInventors: Shigemasa SATO, Takao Goto, Akio Nishizawa
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Patent number: 7653296Abstract: A camera capable of conducting a wireless communication includes a wireless communication circuit and a wireless communication antenna. The wireless communication antenna, which is disposed at a non-metal movable member that can advance and retreat relative to a camera body, moves relative to the camera body.Type: GrantFiled: August 30, 2006Date of Patent: January 26, 2010Assignee: Nikon CorporationInventors: Yoh Wakamizu, Shigemasa Sato, Hidefumi Ota
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Publication number: 20070123324Abstract: Opening/closing operation is detected at a portable communication terminal that includes an opening/closing mechanism and upon predicting the occurrence of a shock resulting from at least one of the opening operation and the closing operation, the head of a hard disk drive is retracted to a safe position so as to prevent damage to the disk and the head.Type: ApplicationFiled: November 24, 2006Publication date: May 31, 2007Applicant: NIKON CORPORATIONInventors: Shigemasa Sato, Takuya Shirahata
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Publication number: 20070098384Abstract: A camera capable of conducting a wireless communication includes a wireless communication circuit and a wireless communication antenna. The wireless communication antenna, which is disposed at a non-metal movable member that can advance and retreat relative to a camera body, moves relative to the camera body.Type: ApplicationFiled: August 30, 2006Publication date: May 3, 2007Applicant: NIKON CORPORATIONInventors: Yoh Wakamizu, Shigemasa Sato, Hidefumi Ota
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Publication number: 20060227515Abstract: A cooling apparatus for cooling a plurality of electronic devices each having a large heating value and a small area, capable of effectively cooling the semiconductor chips with the use of a single cooler, comprises a plurality of thermal conductors mounted on the electronic devices and formed with thermal conductive fins, a housing formed with fins fitted with the fins of the thermal conductors, and a cooling device mounted on the housing, for removing heat from the electronic devices, wherein the housing is formed therein with a plane heat-pipe.Type: ApplicationFiled: March 2, 2006Publication date: October 12, 2006Applicant: Hitachi, Ltd.Inventors: Takafumi Enami, Akio Idei, Shigemasa Sato, Chikakazu Ninomiya
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Publication number: 20060099468Abstract: The present invention relates to an electronic device and an electronic device operating control method in which the state of the fuel cell can be accurately determined. In cases where the voltage generated by the fuel cell 12 acquired from the voltage detection part 14 is greater than a specified voltage reference value V, the microcomputer 11 causes the display part 18 to display that the fuel cell 12 is normal, while in cases where this generated voltage is smaller than the voltage reference value V, the microcomputer 11 causes the residual fuel amount detection part 13 to detect the residual fuel amount.Type: ApplicationFiled: December 26, 2003Publication date: May 11, 2006Inventors: Shigemasa Sato, Takao Goto, Akio Nishizawa
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Patent number: 5794083Abstract: A visual line detection camera includes a detector to detect the visual line position of a photographer, an area determination device to determine the fixation area using an equation containing compensation terms unique to the photographer in conjunction with the results of detection accomplished by the detector, a display to display the area corresponding to the fixation area obtained by the area determination device, a fixation area selector enabling the fixation area to be altered by external operation, and a compensating factor adjustment device to alter the compensation terms in the equation when the area determined by the equation and the fixation area after alteration are different as a result of alteration by the fixation area selector. This structure enables the camera to adapt to different photographers in accordance with different photographer physical attributes, providing a visual line detection camera with a high degree of reliability.Type: GrantFiled: December 18, 1996Date of Patent: August 11, 1998Assignee: Nikon CorporationInventors: Mikihito Furuya, Shigemasa Sato
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Patent number: RE36895Abstract: An automatic focusing camera comprises a measuring device formed integrally with a camera housing, defining a distance measuring zone selectively extended in different directions, and adapted for producing information employed for focusing to an object contained in the extended distance measuring zone. A position detecting device for detecting the position of the camera housing, and a device for varying the extending direction of the distance measuring zone, in response to the position of the camera housing detected by the position detecting device.Type: GrantFiled: December 29, 1998Date of Patent: October 3, 2000Assignee: Nikon CorporationInventors: Hiroyuki Tsuru, Tadashi Otani, Shigemasa Sato