Patents by Inventor Fumio Iwase

Fumio Iwase 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: 10598916
    Abstract: In an image acquisition device, an optical path difference generating member can form an optical path length difference of a second optical image without splitting light in a second optical path. This can suppress the quantity of light required for the second optical path to obtain information of the focal position, whereby a quantity of light can be secured for a first imaging device to capture an image. The image acquisition device synchronizes the movement of a predetermined part of a sample within a field of an objective lens with rolling readout such that each pixel column of a second imaging device is exposed to an optical image of the predetermined part in the sample.
    Type: Grant
    Filed: May 8, 2019
    Date of Patent: March 24, 2020
    Assignee: HAMAMATSU PHOTONICS K.K.
    Inventors: Fumio Iwase, Masatoshi Okugawa
  • Patent number: 10422987
    Abstract: In an image acquisition device, imaging is performed using an imaging element capable of rolling reading an optical image of a sample irradiated with instantaneous light. Therefore, the image can be captured with a sufficient S/N ratio even when the optical image is weak. Further, the image acquisition device includes a light source control unit that causes the instantaneous light to be emitted from a light source from the start of exposure of a pixel row of which reading last starts to the start of reading of a pixel row of which the reading first starts. That is, in the image acquisition device, the light source control unit causes the sample to be irradiated with the instantaneous light from the light emitting means during a period of time in which all pixel rows of the imaging element are exposed.
    Type: Grant
    Filed: January 28, 2014
    Date of Patent: September 24, 2019
    Assignee: HAMAMATSU PHOTONICS K.K.
    Inventor: Fumio Iwase
  • Publication number: 20190265457
    Abstract: In an image acquisition device, an optical path difference generating member can form an optical path length difference of a second optical image without splitting light in a second optical path. This can suppress the quantity of light required for the second optical path to obtain information of the focal position, whereby a quantity of light can be secured for a first imaging device to capture an image. The image acquisition device synchronizes the movement of a predetermined part of a sample within a field of an objective lens with rolling readout such that each pixel column of a second imaging device is exposed to an optical image of the predetermined part in the sample.
    Type: Application
    Filed: May 8, 2019
    Publication date: August 29, 2019
    Inventors: Fumio IWASE, Masatoshi OKUGAWA
  • Patent number: 10348954
    Abstract: An image acquisition device reciprocates a focal position of an objective lens with respect to a sample in the optical axis direction of the objective lens, while moving a field position of the objective lens with respect to the sample. This makes it possible to acquire contrast information of image data at the field position of the objective lens sequentially as the field position moves with respect to the sample. The image acquisition device acquires the image data by the rolling readout of the image pickup element according to the reciprocation of the focal position of the objective lens.
    Type: Grant
    Filed: April 21, 2014
    Date of Patent: July 9, 2019
    Assignee: HAMAMATSU PHOTONICS K.K.
    Inventors: Fumio Iwase, Masatoshi Okugawa
  • Patent number: 10330910
    Abstract: In an image acquisition device, an optical path difference generating member can form an optical path length difference of a second optical image without splitting light in a second optical path. This can suppress the quantity of light required for the second optical path to obtain information of the focal position, whereby a quantity of light can be secured for a first imaging device to capture an image. The image acquisition device synchronizes the movement of a predetermined part of a sample within a field of an objective lens with rolling readout such that each pixel column of a second imaging device is exposed to an optical image of the predetermined part in the sample.
    Type: Grant
    Filed: April 21, 2014
    Date of Patent: June 25, 2019
    Assignee: HAMAMATSU PHOTONICS K.K.
    Inventors: Fumio Iwase, Masatoshi Okugawa
  • Patent number: 9911028
    Abstract: In this image acquisition device, a stage driving unit moves a position of a field of view of an objective lens relative to a sample at a predetermined velocity, and a two-dimensional imaging element sequentially captures an optical image of the sample at a predetermined frame rate. Therefore, time required for acquiring partial images over the entire sample is shortened. Further, in this image acquisition device, the moving velocity of the position of the field of view is a velocity set based on a frame rate of the imaging element. Therefore, the movement of the position of the field of view and the imaging of the imaging element are synchronized with each other, and it is possible to capture only necessary partial images.
    Type: Grant
    Filed: January 28, 2014
    Date of Patent: March 6, 2018
    Assignee: HAMAMATSU PHOTONICS K.K.
    Inventor: Fumio Iwase
  • Patent number: 9661212
    Abstract: In an image acquisition device, an optical path difference generating member can form an optical path length difference of a second light image without splitting light in a second optical path. This can suppress the quantity of light required for the second optical path to obtain information of the focal position, whereby a quantity of light can be secured for a first imaging device to capture an image. The image acquisition device synchronizes the movement of a predetermined part of a sample within a field of an objective lens with rolling readout such that each pixel column of a second imaging device is exposed to a light image of the predetermined part in the sample.
    Type: Grant
    Filed: March 7, 2014
    Date of Patent: May 23, 2017
    Assignee: HAMAMATSU PHOTONICS K.K.
    Inventors: Hideshi Oishi, Fumio Iwase, Masatoshi Okugawa
  • Publication number: 20160267317
    Abstract: In this image acquisition device, a stage driving unit moves a position of a field of view of an objective lens relative to a sample at a predetermined velocity, and a two-dimensional imaging element sequentially captures an optical image of the sample at a predetermined frame rate. Therefore, time required for acquiring partial images over the entire sample is shortened. Further, in this image acquisition device, the moving velocity of the position of the field of view is a velocity set based on a frame rate of the imaging element. Therefore, the movement of the position of the field of view and the imaging of the imaging element are synchronized with each other, and it is possible to capture only necessary partial images.
    Type: Application
    Filed: January 28, 2014
    Publication date: September 15, 2016
    Applicant: HAMAMATSU PHOTONICS K.K.
    Inventor: Fumio IWASE
  • Publication number: 20160252717
    Abstract: In an image acquisition device, imaging is performed using an imaging element capable of rolling reading an optical image of a sample irradiated with instantaneous light. Therefore, the image can be captured with a sufficient S/N ratio even when the optical image is weak. Further, the image acquisition device includes a light source control unit that causes the instantaneous light to be emitted from a light source from the start of exposure of a pixel row of which reading last starts to the start of reading of a pixel row of which the reading first starts. That is, in the image acquisition device, the light source control unit causes the sample to be irradiated with the instantaneous light from the light emitting means during a period of time in which all pixel rows of the imaging element are exposed.
    Type: Application
    Filed: January 28, 2014
    Publication date: September 1, 2016
    Inventor: Fumio IWASE
  • Publication number: 20160156832
    Abstract: In an image acquisition device, an optical path difference generating member can form an optical path length difference of a second light image without splitting light in a second optical path. This can suppress the quantity of light required for the second optical path to obtain information of the focal position, whereby a quantity of light can be secured for a first imaging device to capture an image. The image acquisition device synchronizes the movement of a predetermined part of a sample within a field of an objective lens with rolling readout such that each pixel column of a second imaging device is exposed to a light image of the predetermined part in the sample.
    Type: Application
    Filed: March 7, 2014
    Publication date: June 2, 2016
    Inventors: Hideshi OISHI, Fumio IWASE, Masatoshi OKUGAWA
  • Patent number: 9305969
    Abstract: A solid-state imaging device 1A includes a CCD-type solid-state imaging element 10 having an imaging plane 12 formed of M×N pixels that are two-dimensionally arrayed in M rows and N columns, N signal readout circuits 20 arranged on one end side in the column direction for each of the columns with respect to the imaging plane 12, and N signal readout circuits 30 arranged on the other end side in the column direction for each of the columns with respect to the imaging plane 12, a semiconductor element 50 for digital-converting and then sequentially outputting as serial signals electrical signals output from the signal readout circuits 20 for each of the columns, and a semiconductor element 60 for digital-converting and then sequentially outputting as serial signals electrical signals output from the signal readout circuits 30 for each of the columns.
    Type: Grant
    Filed: November 1, 2012
    Date of Patent: April 5, 2016
    Assignee: HAMAMATSU PHOTONICS K.K.
    Inventors: Motohiro Suyama, Akiomi Ujima, Kentaro Maeta, Hisanori Suzuki, Masaharu Muramatsu, Fumio Iwase
  • Publication number: 20160077322
    Abstract: In an image acquisition device, an optical path difference generating member can form an optical path length difference of a second optical image without splitting light in a second optical path. This can suppress the quantity of light required for the second optical path to obtain information of the focal position, whereby a quantity of light can be secured for a first imaging device to capture an image. The image acquisition device synchronizes the movement of a predetermined part of a sample within a field of an objective lens with rolling readout such that each pixel column of a second imaging device is exposed to an optical image of the predetermined part in the sample.
    Type: Application
    Filed: April 21, 2014
    Publication date: March 17, 2016
    Inventors: Fumio IWASE, Masatoshi OKUGAWA
  • Publication number: 20160080632
    Abstract: An image acquisition device reciprocates a focal position of an objective lens with respect to a sample in the optical axis direction of the objective lens, while moving a field position of the objective lens with respect to the sample. This makes it possible to acquire contrast information of image data at the field position of the objective lens sequentially as the field position moves with respect to the sample. The image acquisition device acquires the image data by the rolling readout of the image pickup element according to the reciprocation of the focal position of the objective lens.
    Type: Application
    Filed: April 21, 2014
    Publication date: March 17, 2016
    Inventors: Fumio Iwase, Masatoshi Okugawa
  • Patent number: 9054000
    Abstract: A solid-state imaging device 2A includes a CCD-type solid-state imaging element 10 having an imaging plane 12 formed of M×N pixels that are two-dimensionally arrayed in M rows and N columns and N signal readout circuits 20 arranged on one end side in the column direction for each of the columns with respect to the plane 12 and for outputting electrical signals according to the magnitudes of charges taken out of the respective columns, respectively, a C-MOS-type semiconductor element 50 for digital-converting and sequentially outputting as serial signals electrical signals output from the circuits 20 for each of the columns, a heat transfer member 80 having a main surface 81a and a back surface 81b, and a cooling block 84 provided on the surface 81b, and the semiconductor element 50 and the surface 81a of the heat transfer member 80 are bonded to each other.
    Type: Grant
    Filed: November 1, 2012
    Date of Patent: June 9, 2015
    Assignee: HAMAMATSU PHOTONICS K.K.
    Inventors: Motohiro Suyama, Akiomi Ujima, Kentaro Maeta, Hisanori Suzuki, Masaharu Muramatsu, Fumio Iwase
  • Patent number: 7737389
    Abstract: A fluorescence correlation spectroscopy analyzer 1 is equipped with an excitation light illuminating optical system 21, a fluorescence imaging optical system 22, a CCD camera 15, and a data analyzer 16. The excitation light illuminating optical system 21 illuminates excitation light onto a predetermined region of a measured sample S. The fluorescence imaging optical system 22 images the fluorescence generated at the measured sample S onto the photodetection surface of the CCD camera 15. The CCD camera 15 performs photoelectric conversion of the fluorescence made incident onto the photodetection surface in accordance with the respective pixels and outputs the charges generated by the photoelectric conversion as detection signals from an output terminal. The data analyzer 16 inputs the detection signals based on the charges generated at the pixels, and computes autocorrelation functions of the input detection signals according to each pixel.
    Type: Grant
    Filed: December 17, 2007
    Date of Patent: June 15, 2010
    Assignee: Hamamatsu Photonics K.K.
    Inventors: Takayuki Inoue, Tadashi Maruno, Fumio Iwase
  • Publication number: 20080174776
    Abstract: A fluorescence correlation spectroscopy analyzer 1 is equipped with an excitation light illuminating optical system 21, a fluorescence imaging optical system 22, a CCD camera 15, and a data analyzer 16. The excitation light illuminating optical system 21 illuminates excitation light onto a predetermined region of a measured sample S. The fluorescence imaging optical system 22 images the fluorescence generated at the measured sample S onto the photodetection surface of the CCD camera 15. The CCD camera 15 performs photoelectric conversion of the fluorescence made incident onto the photodetection surface in accordance with the respective pixels and outputs the charges generated by the photoelectric conversion as detection signals from an output terminal.
    Type: Application
    Filed: December 17, 2007
    Publication date: July 24, 2008
    Inventors: Takayuki Inoue, Tadashi Maruno, Fumio Iwase
  • Patent number: 7400396
    Abstract: A fluorescence correlation spectroscopy analyzer 1 is equipped with an excitation light illuminating optical system 21, a fluorescence imaging optical system 22, a CCD camera 15, and a data analyzer 16. The excitation light illuminating optical system 21 illuminates excitation light onto a predetermined region of a measured sample S. The fluorescence imaging optical system 22 images the fluorescence generated at the measured sample S onto the photodetection surface of the CCD camera 15. The CCD camera 15 performs photoelectric conversion of the fluorescence made incident onto the photodetection surface in accordance with the respective pixels and outputs the charges generated by the photoelectric conversion as detection signals from an output terminal. The data analyzer 16 inputs the detection signals based on the charges generated at the pixels, and computes autocorrelation functions of the input detection signals according to each pixel.
    Type: Grant
    Filed: February 13, 2004
    Date of Patent: July 15, 2008
    Assignee: Hamanatsu Photonics K.K.
    Inventors: Hirohiko Watanabe, Motoyuki Watanabe, Takayuki Inoue, Tadashi Maruno, Fumio Iwase
  • Publication number: 20060124863
    Abstract: The invention relates to a fluorescence measuring apparatus to which a CCD camera capable of measuring fluorescent components emitted from a specimen corresponding to excitation pulse components emitted at regular intervals toward the specimen is applied. The fluorescence measuring apparatus has at least a CCD and a controller. The CCD includes photoelectric converters for implementing photoelectric conversion of the fluorescent components emitted from the specimen, and charge storage elements for storing and transferring charges resulting from the photoelectric conversion by the photoelectric converters. The controller outputs an electronic shutter signal for sweeping away the charge resulting from the photoelectric conversion by each photoelectric converter, a readout signal for reading the charge resulting from the photoelectric conversion, to the charge storage element, and a transfer signal for sequentially transferring the charge thus read.
    Type: Application
    Filed: October 1, 2003
    Publication date: June 15, 2006
    Applicant: HAMAMATSU PHOTONICS K.K.
    Inventors: Tadashi Maruno, Fumio Iwase, Taiga Sato
  • Patent number: 5237858
    Abstract: The present invention relates to a method and a system for recycling wash residue of ready mixed concrete include the steps of condensing used cement sludge to a predetermined concentration, storing the condensed sludge, sampling the stored sludge and determining the unhydration ratio of cement contained in the sludge, and weighing the stored sludge based on the determined unhydration ratio of cement in order to prepare a new batch of ready mixed concrete or mortar. By determining the unhydration ratio of cement contained in the sludge which has been condensed to a predetermined concentration, it becomes possible to accurately know the ratio of cement contributing as cement and its ratio contributing as the aggregate in a new batch of ready mixed concrete. A new batch of ready mixed concrete can be prepared by weighing the amount of the sludge on the basis of the determined unhydration ratio. The ready mixed concrete thus prepared will have a desired hardening strength and drying shrinkage.
    Type: Grant
    Filed: April 3, 1992
    Date of Patent: August 24, 1993
    Assignee: Neotec Co., Inc.
    Inventors: Yukio Ohsaki, Fumio Iwase, Yoshihisa Nakanishi
  • Patent number: 5209130
    Abstract: The present invention relates to a method and a system for recycling wash residue of ready mixed concrete include the steps of condensing used cement sludge to a predetermined concentration, storing the condensed sludge, sampling the stored sludge and determining the unhydration ratio of cement contained in the sludge, and weighing the stored sludge based on the determined unhydration ratio of cement in order to prepare a new batch of ready mixed concrete or motar. By determining the unhydration ratio of cement contained in the sludge which has been condensed to a predetermined concentration, it becomes possible to accurately know the ratio of cement contributing as cement and its ratio contributing as the aggregate in a new batch of ready mixed concrete. A new batch of ready mixed concrete can be prepared by weighing the amount of the sludge on the basis of the determined unhydration ratio. The ready mixed concrete thus prepared will have a desired hardening strength and drying shrinkage.
    Type: Grant
    Filed: August 11, 1992
    Date of Patent: May 11, 1993
    Assignee: Neotec Co., Ltd.
    Inventors: Yukio Ohsaki, Fumio Iwase, Yoshihisa Nakanishi