Patents by Inventor Masakazu Mizoguchi

Masakazu Mizoguchi 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).

  • Publication number: 20210096351
    Abstract: An endoscope processor includes: an acquisition circuit configured to acquire display size information on a display that is connected to the endoscope processor; a display condition setting circuit configured to set, according to the acquired display size information and properties of an imager of an endoscope that is connected to the endoscope processor, a monitor shift value representing an amount of shift between a first image and a second image corresponding to first image data and second image data, respectively, the first image data and the second image data each having parallax with respect to a same subject; and an image processor configured to shift the first image and the second image to generate display image data to be output to the display using the set monitor shift value.
    Type: Application
    Filed: December 2, 2020
    Publication date: April 1, 2021
    Applicant: OLYMPUS CORPORATION
    Inventors: Masakazu MIZOGUCHI, Yasushi NAMII
  • Patent number: 10951800
    Abstract: An endoscope system is provided with: a processor; a light source; and an image pickup device. The processor performs control for causing reflected light images corresponding to a predetermined period before start of the fluorescence occurrence period during the fluorescence non-occurrence period, among the reflected light images, to be recorded to the first storage medium; and, furthermore, performs control for causing the reflected light images to be recorded to the first storage medium during an after-end-of-fluorescence-occurrence period corresponding to a predetermined period with an end of the fluorescence occurrence period as a start point, and performs control for causing the reflected light images not to be recorded to the first storage medium during the fluorescence non-occurrence period after an end of the after-end-of-fluorescence-occurrence period.
    Type: Grant
    Filed: June 19, 2020
    Date of Patent: March 16, 2021
    Assignee: OLYMPUS CORPORATION
    Inventors: Susumu Aono, Toshiaki Watanabe, Satoshi Takekoshi, Masakazu Mizoguchi, Junichi Tashiro
  • Publication number: 20200315439
    Abstract: An endoscope system includes a processor configured to generate a clock at predetermined timing, a light source apparatus configured to irradiate white light and excitation light in a time division manner in synchronization with the clock, and an endoscope configured to perform image pickup based on irradiation timing of the light source apparatus. The processor generates a first white light image at a first clock, generates a first fluorescent image at a second clock, generates a second white light image at a third clock, and generates a third white light image at a fourth clock and superimposes the second white light image and the first fluorescent image at the fourth clock and superimposes the third white light image and the first fluorescent image at a fifth clock.
    Type: Application
    Filed: June 22, 2020
    Publication date: October 8, 2020
    Applicant: OLYMPUS CORPORATION
    Inventors: Masakazu MIZOGUCHI, Toshiaki WATANABE, Satoshi TAKEKOSHI, Susumu AONO
  • Publication number: 20200322512
    Abstract: An endoscope system is provided with: a processor; a light source; and an image pickup device. The processor performs control for causing reflected light images corresponding to a predetermined period before start of the fluorescence occurrence period during the fluorescence non-occurrence period, among the reflected light images, to be recorded to the first storage medium; and, furthermore, performs control for causing the reflected light images to be recorded to the first storage medium during an after-end-of-fluorescence-occurrence period corresponding to a predetermined period with an end of the fluorescence occurrence period as a start point, and performs control for causing the reflected light images not to be recorded to the first storage medium during the fluorescence non-occurrence period after an end of the after-end-of-fluorescence-occurrence period.
    Type: Application
    Filed: June 19, 2020
    Publication date: October 8, 2020
    Applicant: OLYMPUS CORPORATION
    Inventors: Susumu AONO, Toshiaki WATANABE, Satoshi TAKEKOSHI, Masakazu MIZOGUCHI, Junichi TASHIRO
  • Patent number: 10390688
    Abstract: An image pickup system includes a stereoscopic endoscope including image pickup optical systems having a parallax therebetween and a first image pickup device and a second image pickup device, and a processor including a first photometric measurement section configured to photometrically measure a luminance value of a first image pickup signal related to the first image pickup device, a second photometric measurement section configured to measure a luminance value of a second image pickup signal related to the second image pickup device, and a control section including a threshold value comparison section configured to compare the luminance value with a threshold value. When the luminance value of either one of the first image pickup signal and the second image pickup signal exceeds the threshold value, the image pickup system performs light adjustment control of a light source based on a photometric value of the other image pickup signal.
    Type: Grant
    Filed: March 30, 2017
    Date of Patent: August 27, 2019
    Assignee: OLYMPUS CORPORATION
    Inventors: Masakazu Mizoguchi, Satoshi Tanaka
  • Publication number: 20190246875
    Abstract: An endoscope system includes: at least one image sensor configured to generate multiple pieces of image data in which acquisition areas of an object image are at least partially different from each other, or multiple pieces of image data having a disparity with regard to an identical object; a first processor configured to combine the pieces of image data to generate a single piece of combined image data; a second processor configured to execute image processing on the combined image data, and generate display image data to be presented on a display based on the combined image data on which the image processing has been executed. The second processor is disposed inside a predetermined casing, the first processor is disposed outside the predetermined casing, and the combined image data generated by the first processor is transmitted to the predetermined casing.
    Type: Application
    Filed: April 25, 2019
    Publication date: August 15, 2019
    Applicant: OLYMPUS CORPORATION
    Inventors: Masakazu MIZOGUCHI, Hideyuki KUGIMIYA, Ryo KOSHIDA
  • Patent number: 9756315
    Abstract: A picture switch is performed to select a right picture and a left picture, a right picture and a right picture, or a left picture and a left picture without changing the kind and format of a video signal before and after a switch of a 2D picture and a 3D picture of an endoscopic system, and a picture shift is performed to horizontally shift the right picture and the left picture, and the pictures are then output to a monitor.
    Type: Grant
    Filed: October 2, 2015
    Date of Patent: September 5, 2017
    Assignee: OLYMPUS CORPORATION
    Inventors: Masakazu Mizoguchi, Hiroshi Ushiroda
  • Publication number: 20170202441
    Abstract: An image pickup system includes a stereoscopic endoscope including image pickup optical systems having a parallax therebetween and a first image pickup device and a second image pickup device, and a processor including a first photometric measurement section configured to photometrically measure a luminance value of a first image pickup signal related to the first image pickup device, a second photometric measurement section configured to measure a luminance value of a second image pickup signal related to the second image pickup device, and a control section including a threshold value comparison section configured to compare the luminance value with a threshold value. When the luminance value of either one of the first image pickup signal and the second image pickup signal exceeds the threshold value, the image pickup system performs light adjustment control of a light source based on a photometric value of the other image pickup signal.
    Type: Application
    Filed: March 30, 2017
    Publication date: July 20, 2017
    Applicant: OLYMPUS CORPORATION
    Inventors: Masakazu MIZOGUCHI, Satoshi TANAKA
  • Patent number: 9641827
    Abstract: A controller for a 3D observation apparatus performing 3D observation based on parallax using a plurality of optical systems includes the following sections. A start time acquisition section obtains a start time when energization of the 3D observation apparatus is started. An interrupted time acquisition section obtains an interrupted time when previous energization of the 3D observation apparatus is interrupted. A non-active time calculation section calculates a non-active time which is a period of time between the interrupted time and the start time. A determination section determines whether or not misalignment correction to correct misalignment of optical axes of the optical systems is necessary based on the non-active time.
    Type: Grant
    Filed: August 3, 2016
    Date of Patent: May 2, 2017
    Assignee: OLYMPUS CORPORATION
    Inventors: Yasuhiro Nishigaki, Masakazu Mizoguchi
  • Publication number: 20160345000
    Abstract: A controller for a 3D observation apparatus performing 3D observation based on parallax using a plurality of optical systems includes the following sections. A start time acquisition section obtains a start time when energization of the 3D observation apparatus is started. An interrupted time acquisition section obtains an interrupted time when previous energization of the 3D observation apparatus is interrupted. A non-active time calculation section calculates a non-active time which is a period of time between the interrupted time and the start time. A determination section determines whether or not misalignment correction to correct misalignment of optical axes of the optical systems is necessary based on the non-active time.
    Type: Application
    Filed: August 3, 2016
    Publication date: November 24, 2016
    Applicant: OLYMPUS CORPORATION
    Inventors: Yasuhiro NISHIGAKI, Masakazu MIZOGUCHI
  • Publication number: 20160029011
    Abstract: A picture switch is performed to select a right picture and a left picture, a right picture and a right picture, or a left picture and a left picture without changing the kind and format of a video signal before and after a switch of a 2D picture and a 3D picture of an endoscopic system, and a picture shift is performed to horizontally shift the right picture and the left picture, and the pictures are then output to a monitor.
    Type: Application
    Filed: October 2, 2015
    Publication date: January 28, 2016
    Applicant: OLYMPUS CORPORATION
    Inventors: Masakazu MIZOGUCHI, Hiroshi USHIRODA
  • Patent number: 8221304
    Abstract: There is disclosed an operation microscope in which an observing and displaying system of an operating instrument are selected, and an endoscope image for observing a dead angle of the microscope and a navigation image are selectively displayed in a microscope observation field, so that a tomographic image, three-dimensionally constructed image, and the like can be selectively displayed in a display screen in accordance with a treatment position displayed in a monitor or an observation position of the operation microscope.
    Type: Grant
    Filed: August 5, 2004
    Date of Patent: July 17, 2012
    Assignee: Olympus Corporation
    Inventors: Keiji Shioda, Kazuhito Nakanishi, Masakazu Mizoguchi, Takashi Fukaya, Wataru Ohno, Masahiko Kinukawa, Masaaki Ueda, Motokazu Nakamura, Toru Shinmura, Kazuo Morita
  • Patent number: 7076286
    Abstract: First sensing means senses the three-dimensional position of a microscope, with an operating site as the origin. Second sensing means senses the three dimensional position of a surgical instrument with respect to the microscope. On the basis of the sensing results of the first sensing means and second sensing means, computing means calculates the three-dimensional position of the surgical instrument, with the operating site as the origin.
    Type: Grant
    Filed: June 17, 2002
    Date of Patent: July 11, 2006
    Assignee: Olympus Optical Co., Ltd.
    Inventors: Masakazu Mizoguchi, Masahiko Kinukawa, Takashi Fukaya
  • Publication number: 20050020876
    Abstract: There is disclosed an operation microscope in which an observing and displaying system of an operating instrument are selected, and an endoscope image for observing a dead angle of the microscope and a navigation image are selectively displayed in a microscope observation field, so that a tomographic image, three-dimensionally constructed image, and the like can be selectively displayed in a display screen in accordance with a treatment position displayed in a monitor or an observation position of the operation microscope.
    Type: Application
    Filed: August 5, 2004
    Publication date: January 27, 2005
    Applicant: OLYMPUS CORPORATION
    Inventors: Keiji Shioda, Kazuhito Nakanishi, Masakazu Mizoguchi, Takashi Fukaya, Wataru Ohno, Masahiko Kinukawa, Masaaki Ueda, Motokazu Nakamura, Toru Shinmura, Kazuo Morita
  • Publication number: 20040070822
    Abstract: Provided is a surgical observational system capable of effectively displaying, in the field of an operating microscope, a real-time image obtained by means of an ultrasonic probe, for example, and a slice image obtained by a preoperative diagnosis on the location of the distal end portion of the probe or a three-dimensional image of an affected region, in association with an actual observational image obtained by means of the microscope. The surgical operation observational system is provided with two monitors in the operating microscope for the observation of the affected region to be operated. Images on the two monitors are alternatively superposed on the optical path of the operating microscope.
    Type: Application
    Filed: September 11, 2003
    Publication date: April 15, 2004
    Applicant: OLYMPUS OPTICAL CO., LTD.
    Inventors: Keiji Shioda, Koji Shimomura, Kazuhito Nakanishi, Masakazu Mizoguchi, Masaaki Ueda, Masahiko Kinukawa, Wataru Ohno, Toru Shinmura, Koji Yasunaga, Takashi Fukaya, Masaki Takayama
  • Patent number: 6661571
    Abstract: Provided is a surgical observational system capable of effectively displaying, in the field of an operating microscope, a real-time image obtained by means of an ultrasonic probe, for example, and a slice image obtained by a preoperative diagnosis on the location of the distal end portion of the probe or a three-dimensional image of an affected region, in association with an actual observational image obtained by means of the microscope. The surgical operation observational system is provided with two monitors in the operating microscope for the observation of the affected region to be operated. Images on the two monitors are alternatively superposed on the optical path of the operating microscope.
    Type: Grant
    Filed: September 18, 2000
    Date of Patent: December 9, 2003
    Assignee: Olympus Optical Co., Ltd.
    Inventors: Keiji Shioda, Kazuhito Nakanishi, Masakazu Mizoguchi, Masahiko Kinukawa, Wataru Ohno, Toru Shinmura, Koji Yasunaga, Takashi Fukaya
  • Publication number: 20020151784
    Abstract: First sensing means senses the three-dimensional position of a microscope, with an operating site as the origin. Second sensing means senses the three dimensional position of a surgical instrument with respect to the microscope. On the basis of the sensing results of the first sensing means and second sensing means, computing means calculates the three-dimensional position of the surgical instrument, with the operating site as the origin.
    Type: Application
    Filed: June 17, 2002
    Publication date: October 17, 2002
    Applicant: Olympus Optical Co., Ltd.
    Inventors: Masakazu Mizoguchi, Masahiko Kinukawa, Takashi Fukaya
  • Patent number: 6434416
    Abstract: First sensing means senses the three-dimensional position of a microscope, with an operating site as the origin. Second sensing means senses the three-dimensional position of a surgical instrument with respect to the microscope. On the basis of the sensing results of the first sensing means and second sensing means, computing means calculates the three-dimensional position of the surgical instrument, with the operating site as the origin.
    Type: Grant
    Filed: November 8, 1999
    Date of Patent: August 13, 2002
    Assignee: Olympus Optical Co., Ltd.
    Inventors: Masakazu Mizoguchi, Masahiko Kinukawa, Takashi Fukaya
  • Publication number: 20010055062
    Abstract: There is disclosed an operation microscope in which an observing and displaying means of an operating instrument are selected, and an endoscope image for observing a dead angle of the microscope and a navigation image are selectively displayed in a microscope observation field, so that a tomographic image, three-dimensionally constructed image, and the like can be selectively displayed in a display screen in accordance with a treatment position displayed in a monitor or an observation position of the operation microscope.
    Type: Application
    Filed: April 18, 2001
    Publication date: December 27, 2001
    Inventors: Keiji Shioda, Kazuhito Nakanishi, Masakazu Mizoguchi, Takashi Fukaya, Wataru Ohno, Masahiko Kinukawa, Masaaki Ueda, Motokazu Nakamura, Toru Shinmura, Kazuo Morita
  • Patent number: 6081371
    Abstract: A surgical microscope includes an illumination optical system for illuminating a microscope visual field, an observation optical system which has an eyepiece lens and an imaging lens and allows observation of a first image of an observation target by guiding reflected light from the observation target irradiated with illumination light to the eyepiece lens from the illumination optical system, an image projection optical system for projecting a second image as image information within a portion of the microscope visual field, and visual field adjusting mechanism which has a field stop placed at an imaging position of the imaging lens and having a changeable stop shape and adjusts an area of the microscope visual field by changing the stop shape of the field stop in accordance with a projection state of the second image with respect to the microscope visual field.
    Type: Grant
    Filed: December 1, 1998
    Date of Patent: June 27, 2000
    Assignee: Olympus Optical Co., Ltd.
    Inventors: Keiji Shioda, Masakazu Mizoguchi, Junichi Nozawa, Takashi Fukaya