Patents by Inventor Hisashi Goto

Hisashi Goto 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: 12094037
    Abstract: There are a medical image processing apparatus and a medical image processing method that are capable of maintaining the estimation accuracy of noise intensity even though a system noise ratio rises. A medical image processing apparatus includes a difference image generating unit that divides projection data obtained by applying radiation to an examinee to create a difference image between tomographic images reconstructed for every divided piece of projection data; a local variance computing unit that computes local variance in the difference image; and a noise estimation unit that corrects the local variance using a correction function found in advance to estimate noise intensity of a tomographic image of the examinee. The correction function includes system noise.
    Type: Grant
    Filed: December 22, 2021
    Date of Patent: September 17, 2024
    Assignee: FUJIFILM Healthcare Corporation
    Inventors: Hisashi Takahashi, Taiga Goto, Kana Tanaka
  • Patent number: 11933183
    Abstract: A steam turbine valve abnormality monitoring system according to an embodiment includes a detection unit detecting the state of a steam turbine valve or a steam turbine valve drive device, a determination unit, and an abnormality processing unit. Based on the detected result of the detection unit, the determination unit determines whether or not an abnormality has occurred in the opening degree control of the steam turbine valve. The abnormality processing unit issues an alarm or issues a turbine stop command when the determination unit determines that an abnormality has occurred in the opening degree control of the steam turbine valve.
    Type: Grant
    Filed: June 14, 2021
    Date of Patent: March 19, 2024
    Assignees: KABUSHIKI KAISHA TOSHIBA, TOSHIBA ENERGY SYSTEMS & SOLUTIONS CORPORATION
    Inventors: Takuhiro Tsunekawa, Yuichi Nakamura, Hisashi Goto, Hiroyuki Miya
  • Publication number: 20210388735
    Abstract: A steam turbine valve abnormality monitoring system according to an embodiment includes a detection unit detecting the state of a steam turbine valve or a steam turbine valve drive device, a determination unit, and an abnormality processing unit. Based on the detected result of the detection unit, the determination unit determines whether or not an abnormality has occurred in the opening degree control of the steam turbine valve. The abnormality processing unit issues an alarm or issues a turbine stop command when the determination unit determines that an abnormality has occurred in the opening degree control of the steam turbine valve.
    Type: Application
    Filed: June 14, 2021
    Publication date: December 16, 2021
    Applicants: KABUSHIKI KAISHA TOSHIBA, TOSHIBA ENERGY SYSTEMS & SOLUTIONS CORPORATION
    Inventors: Takuhiro TSUNEKAWA, Yuichi NAKAMURA, Hisashi GOTO, Hiroyuki MIYA
  • Patent number: 10871080
    Abstract: A steam turbine valve drive apparatus in an embodiment includes a piston, a cylinder, a bidirectional pump, a servo motor, and a quick closing mechanism. The cylinder houses the piston in an inner space thereof, the inner space being partitioned by the piston into a first hydraulic chamber and a second hydraulic chamber. The quick closing mechanism executes a quick closing operation of closing the steam valve unit more quickly than the closing operation. Here, the quick closing mechanism executes the quick closing operation by feeding the working oil accumulated in an accumulator to the second hydraulic chamber and draining the working oil from the first hydraulic chamber.
    Type: Grant
    Filed: January 4, 2018
    Date of Patent: December 22, 2020
    Assignees: KABUSHIKI KAISHA TOSHIBA, Toshiba Energy Systems & Solutions Corporation
    Inventors: Takuhiro Tsunekawa, Yuichi Nakamura, Koichi Nagaishi, Toshihiko Endo, Hisashi Goto
  • Publication number: 20180216485
    Abstract: A steam turbine valve drive apparatus in an embodiment includes a piston, a cylinder, a bidirectional pump, a servo motor, and a quick closing mechanism. The cylinder houses the piston in an inner space thereof, the inner space being partitioned by the piston into a first hydraulic chamber and a second hydraulic chamber. The quick closing mechanism executes a quick closing operation of closing the steam valve unit more quickly than the closing operation. Here, the quick closing mechanism executes the quick closing operation by feeding the working oil accumulated in an accumulator to the second hydraulic chamber and draining the working oil from the first hydraulic chamber.
    Type: Application
    Filed: January 4, 2018
    Publication date: August 2, 2018
    Applicants: KABUSHIKI KAISHA TOSHIBA, Toshiba Energy Systems & Solutions Comparation
    Inventors: Takuhiro TSUNEKAWA, Yuichi NAKAMURA, Koichi NAGAISHI, Toshihiko ENDO, Hisashi GOTO
  • Patent number: 9671604
    Abstract: A microscope system (100) includes a microscope (10) and an observation unit (20) provided separately from the microscope. The microscope includes a microscope objective lens (3), an image pickup element (31) disposed at a position at which an image is formed through the microscope objective lens, and a first control apparatus (32) connected with the image pickup element. The observation unit includes a second control apparatus (21), a display device (22, 22a, 22b) connected with the second control apparatus, and a magnifier optical system (25a, 25b) arranged at a predetermined distance from the display device. The microscope system further includes a communication apparatus (21) for communication between the first control apparatus and the second control apparatus so that an image picked up by the image pickup apparatus is displayed on the display device.
    Type: Grant
    Filed: November 14, 2014
    Date of Patent: June 6, 2017
    Assignee: OLYMPUS CORPORATION
    Inventors: Kazuo Kajitani, Hisashi Goto, Yoshimasa Suzuki
  • Patent number: 9389401
    Abstract: Provided are a variable power optical system in which the value of the entire length with respect to the image height is reduced and the aberration is well corrected, and an image pickup device comprising the same. Specifically provided is a variable power optical system comprising, in order from the object side, at least a first lens group having negative refractive power, a variable power group having positive refractive power, and a final lens group having positive refractive power, wherein the variable power group is provided with, in order from the object side, a first lens element having positive refractive power, a second lens element, and a third lens element, the second lens element has a convex shape on the object side, and the final lens group comprises a positive lens, the variable power optical system satisfying the following conditional expression: 10?VdLg?45 ?1.0<(R2a?R2b)/(R2a+R2b)<1.
    Type: Grant
    Filed: November 17, 2014
    Date of Patent: July 12, 2016
    Assignee: OLYMPUS CORPORATION
    Inventors: Keigo Matsuo, Takayuki Mimura, Kanato Adachi, Hisashi Goto
  • Patent number: 9244265
    Abstract: The invention provides a viewing optical system positioned between a viewing plane as a virtual plane and an eye point. The viewing optical system comprises, in order from the viewing plane side, a first lens and a filter.
    Type: Grant
    Filed: May 20, 2009
    Date of Patent: January 26, 2016
    Assignee: OLYMPUS CORPORATION
    Inventors: Ayako Asakura, Hisashi Goto
  • Patent number: 9170413
    Abstract: A microscope objective lens has an aspheric-surface lens, and a first lens nearest to an object side is a negative lens. It is desirable that at least any one surface of the first lens nearest to the object side is an aspheric surface. Moreover, it is desirable that the microscope objective lens satisfies the following conditional expression (1) ?20<f1/f<?0.1??(1) where, f1 denotes a focal length of the first lens nearest to the object side, and f denotes a focal length of the overall microscope objective lens system.
    Type: Grant
    Filed: January 31, 2013
    Date of Patent: October 27, 2015
    Assignee: OLYMPUS CORPORATION
    Inventors: Yoshimasa Suzuki, Kazuo Kajitani, Hisashi Goto, Hisashi Ode
  • Patent number: 9106899
    Abstract: An apparatus has a synchronizing signal generator to which a trigger signal is input and that outputs a first synchronizing signal and a second synchronizing signal based on the trigger signal, an image pickup unit that has an image pickup surface, performs a first image picking-up based on the first synchronizing signal, and performs a second image picking-up based on the second synchronizing signal, and an image pickup element tilting unit that changes the angle of the image pickup surface relative to the optical axis during a period after the first image picking-up and before the second image picking-up.
    Type: Grant
    Filed: December 13, 2011
    Date of Patent: August 11, 2015
    Assignee: OLYMPUS CORPORATION
    Inventors: Kazuaki Murayama, Hisashi Goto, Kengo Enomoto, Kazuya Yamanaka
  • Publication number: 20150085374
    Abstract: Provided are a variable power optical system in which the value of the entire length with respect to the image height is reduced and the aberration is well corrected, and an image pickup device comprising the same. Specifically provided is a variable power optical system comprising, in order from the object side, at least a first lens group having negative refractive power, a variable power group having positive refractive power, and a final lens group having positive refractive power, wherein the variable power group is provided with, in order from the object side, a first lens element having positive refractive power, a second lens element, and a third lens element, the second lens element has a convex shape on the object side, and the final lens group comprises a positive lens, the variable power optical system satisfying the following conditional expression: 10?VdLg?45 ?1.0<(R2a?R2b)/(R2a+R2b)<1.
    Type: Application
    Filed: November 17, 2014
    Publication date: March 26, 2015
    Applicant: OLYMPUS CORPORATION
    Inventors: Keigo MATSUO, Takayuki MIMURA, Kanato ADACHI, Hisashi GOTO
  • Publication number: 20150070484
    Abstract: A microscope system (100) includes a microscope (10) and an observation unit (20) provided separately from the microscope. The microscope includes a microscope objective lens (3), an image pickup element (31) disposed at a position at which an image is formed through the microscope objective lens, and a first control apparatus (32) connected with the image pickup element. The observation unit includes a second control apparatus (21), a display device (22, 22a, 22b) connected with the second control apparatus, and a magnifier optical system (25a, 25b) arranged at a predetermined distance from the display device. The microscope system further includes a communication apparatus (21) for communication between the first control apparatus and the second control apparatus so that an image picked up by the image pickup apparatus is displayed on the display device.
    Type: Application
    Filed: November 14, 2014
    Publication date: March 12, 2015
    Inventors: Kazuo Kajitani, Hisashi Goto, Yoshimasa Suzuki
  • Patent number: 8964039
    Abstract: A front-rear blur amount of a camera, which occurs when a release button is pressed in order to perform image pickup, is detected, and image data obtained by an imaging device on which an image of an object is formed are subjected to image processing on the basis of the front-rear blur amount. As a result, an image on which the effects of front-rear blur are reduced is obtained.
    Type: Grant
    Filed: March 30, 2011
    Date of Patent: February 24, 2015
    Assignee: Olympus Corporation
    Inventors: Ayako Asakura, Hisashi Goto
  • Patent number: 8964104
    Abstract: An image pickup apparatus of the invention includes: an optical imaging system; an image pickup device; a defocus quantity calculation section for calculating a defocus quantity based on a phase difference between signals for focus detection obtained from pixels for focus detection; a high-frequency component quantity detection section for detecting a quantity of high-frequency component contained in a pixel signal outputted from a pixel other than the pixels for focus detection; a region determination section for determining in accordance with which of the defocus quantity and the high-frequency component quantity the optical imaging system is to be driven, according to a detection result of detecting in which of a plurality of divided blocks of the image pickup device an object of interest is present; and a focusing section for driving the optical imaging system in accordance with a determination result of the region determination section.
    Type: Grant
    Filed: June 10, 2011
    Date of Patent: February 24, 2015
    Assignee: Olympus Corporation
    Inventors: Shingo Kato, Keigo Matsuo, Hisashi Goto
  • Patent number: 8955435
    Abstract: A method of producing a print product comprises: performing digital printing of each surface of the print product, sequentially and repeatedly, on a continuous paper; forming a section by cutting the printing-completed continuous paper into a paper sheet and folding the paper sheet in two; forming a section block by at least one of sections; and folding the section block in two.
    Type: Grant
    Filed: October 25, 2011
    Date of Patent: February 17, 2015
    Assignee: Kabushiki Kaisha Tokyo Kikai Seisakusho
    Inventors: Hiroki Sezaki, Hisashi Goto
  • Patent number: 8928987
    Abstract: A microscope objective lens satisfies the following conditional expressions (1) and (2). 0.05<NA<0.4??(1) 3 mm<D/NA<50 mm??(2) where, NA denotes a numerical aperture on an object side of the microscope objective lens, and D denotes a total thickness of the microscope objective lens.
    Type: Grant
    Filed: January 31, 2013
    Date of Patent: January 6, 2015
    Assignee: Olympus Corporation
    Inventors: Yoshimasa Suzuki, Kazuo Kajitani, Hisashi Goto, Hisashi Ode
  • Patent number: 8917455
    Abstract: Provided are a variable power optical system in which the value of the entire length with respect to the image height is reduced and the aberration is well corrected, and an image pickup device comprising the same. Specifically provided is a variable power optical system comprising, in order from the object side, at least a first lens group having negative refractive power, a variable power group having positive refractive power, and a final lens group having positive refractive power, wherein the variable power group is provided with, in order from the object side, a first lens element having positive refractive power, a second lens element, and a third lens element, the second lens element has a convex shape on the object side, and the final lens group comprises a positive lens, the variable power optical system satisfying the following conditional expression: 10?VdLg?45 ?1.0<(R2a?R2b)/(R2a+R2b)<1.
    Type: Grant
    Filed: October 2, 2013
    Date of Patent: December 23, 2014
    Assignee: Olympus Corporation
    Inventors: Keigo Matsuo, Takayuki Mimura, Kanato Adachi, Hisashi Goto
  • Patent number: 8902349
    Abstract: An image pickup apparatus, includes a computing section which computes a defocus amount which has been estimated, a calculating section which calculates an accuracy of defocus detection, a setting section which sets a correction value from a result of the calculating section, a correcting section which corrects the correction value obtained from the result of the setting section, to reduce an absolute value of the defocus amount which has been estimated, a lens-drive amount calculating section which calculates a lens-drive amount based on a result from the correcting section, and a control section which, at the time of video photography, carries out focusing successively by using the defocus amount and the lens drive amount obtained from the computing section, the calculating section, the setting section, and the correcting section.
    Type: Grant
    Filed: October 21, 2011
    Date of Patent: December 2, 2014
    Assignee: Olympus Corporation
    Inventors: Keigo Matsuo, Hisashi Goto
  • Patent number: 8830378
    Abstract: When a photographer presses a release button by a predetermined amount after focusing on a first object, a focus lens is moved in an optical axis direction so that a second object is brought into focus, whereupon image pickup is performed while focusing on the second object. Image processing is then performed on image data obtained in the image pickup.
    Type: Grant
    Filed: March 29, 2011
    Date of Patent: September 9, 2014
    Assignee: Olympus Corporation
    Inventors: Ayako Asakura, Hisashi Goto
  • Patent number: 8830379
    Abstract: The image pickup apparatus of the present invention includes: an optical imaging system for forming an object image; an image pickup device including a plurality of pixels that photoelectrically converts the object image; a defocus quantity calculation section for calculating a defocus quantity based on a phase difference between a plurality of signals for focus detection obtained from a plurality of pixels for focus detection that respectively receive a light flux that passes through a different pupil region of the optical imaging system; a focusing section for driving the optical imaging system so as to achieve an in-focus state, in accordance with the defocus quantity calculated at the defocus quantity calculation section; an addition practicability determination section for determining a practicability of performing inter-frame addition on a plurality of signals for focus detection before calculating the defocus quantity, based on an analysis result of a signal component of the object image; and an inter-
    Type: Grant
    Filed: June 13, 2011
    Date of Patent: September 9, 2014
    Assignee: Olympus Corporation
    Inventors: Shingo Kato, Keigo Matsuo, Hisashi Goto