Patents by Inventor Yujin Arai

Yujin Arai 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: 20050253088
    Abstract: A fluorescence detection apparatus irradiates a sample with an excitation light having different wavelengths, spectrally detects fluorescence from the sample, and includes: a comparison unit for comparing the wavelength of the excitation light with the starting wavelength of a fluorescent spectrum detection bandwidth; and a determination unit for determining an excitation light irradiation timing such that the irradiation of the excitation wavelength is stopped when the wavelength of the excitation light is longer than the starting wavelength.
    Type: Application
    Filed: May 11, 2005
    Publication date: November 17, 2005
    Applicant: Olympus Corporation
    Inventors: Toshiyuki Hattori, Yujin Arai
  • Publication number: 20050094296
    Abstract: A light deflector comprises a first movable plate having a reflective surface, fixing portions, a pair of second movable plates located between the first movable plate and the fixing portions, a pair of first elastic members supporting the first movable plate so as to allow it to oscillate with respect to the second movable plates, a pair of second elastic members supporting the second movable plates so as to allow them to oscillate with respect to the fixing portions, and an actuator to oscillate the first movable plate. Oscillation axis of the first elastic members and oscillation axis of the second elastic members are located on the same axis. Stiffness of the second elastic members against oscillation is lower than stiffness of the first elastic members against oscillation.
    Type: Application
    Filed: October 28, 2004
    Publication date: May 5, 2005
    Applicant: Olympus Corporation
    Inventors: Kenzi Murakami, Yoshitaka Kamiya, Hiroshi Miyajima, Yujin Arai
  • Patent number: 6781751
    Abstract: A scanning laser microscope includes a laser generation unit which generates a laser beam, a light modulation unit which modulates the laser beam, a scanning unit which scans a sample, a light receiving unit which receives a light from the sample, a control unit which controls the light modulation unit for each pixel of a scanning image acquired by the light receiving of the light receiving unit, and a storage unit which stores a plurality of controlled patterns. The number of pixels of the patterns correspond to the number of pixels of the scanned image. A modulation information of the laser beam is set for each pixel. The control unit reads the control patterns stored in the storage unit, controls the light modulation unit based on the modulation information of each pixel, and performs such control that the control patterns are changed at an arbitrary timing.
    Type: Grant
    Filed: December 15, 2003
    Date of Patent: August 24, 2004
    Assignee: Olympus Optical Co., Ltd.
    Inventor: Yujin Arai
  • Publication number: 20040125440
    Abstract: A scanning laser microscope includes a laser generation unit which generates a laser beam, a light modulation unit which modulates the laser beam, a scanning unit which scans a sample, a light receiving unit which receives a light from the sample, a control unit which controls the light modulation unit for each pixel of a scanning image acquired by the light receiving of the light receiving unit, and a storage unit which stores a plurality of controlled patterns. The number of pixels of the patterns correspond to the number of pixels of the scanned image. A modulation information of the laser beam is set for each pixel. The control unit reads the control patterns stored in the storage unit, controls the light modulation unit based on the modulation information of each pixel, and performs such control that the control patterns are changed at an arbitrary timing.
    Type: Application
    Filed: December 15, 2003
    Publication date: July 1, 2004
    Applicant: Olympus Optical Co., Ltd.
    Inventor: Yujin Arai
  • Patent number: 6717723
    Abstract: A scanning laser microscope includes a laser generation unit which generates a laser beam, a light modulation unit which modulates the laser beam, a scanning unit which scans a sample, a light receiving unit which receives a light from the sample, a control unit which controls the light modulation unit for each pixel of a scanning image acquired by the light receiving of the light receiving unit, and a storage unit which stores a plurality of controlled patterns. The number of pixels of the patterns correspond to the number of pixels of the scanned image. A modulation information of the laser beam is set for each pixel. The control unit reads the control patterns stored in the storage unit, controls the light modulation unit based on the modulation information of each pixel, and performs such control that the control patterns are changed at an arbitrary timing.
    Type: Grant
    Filed: October 26, 2001
    Date of Patent: April 6, 2004
    Assignee: Olympus Optical Co., Ltd.
    Inventor: Yujin Arai
  • Publication number: 20020097487
    Abstract: A scanning laser microscope includes a laser generation unit which generates a laser beam, a light modulation unit which modulates the laser beam, a scanning unit which scans a sample, a light receiving unit which receives a light from the sample, a control unit which controls the light modulation unit for each pixel of a scanning image acquired by the light receiving of the light receiving unit, and a storage unit which stores a plurality of controlled patterns. The number of pixels of the patterns correspond to the number of pixels of the scanned image. A modulation information of the laser beam is set for each pixel. The control unit reads the control patterns stored in the storage unit, controls the light modulation unit based on the modulation information of each pixel, and performs such control that the control patterns are changed at an arbitrary timing.
    Type: Application
    Filed: October 26, 2001
    Publication date: July 25, 2002
    Applicant: Olympus Optical Co., Ltd.
    Inventor: Yujin Arai
  • Publication number: 20020062202
    Abstract: An image data acquisition method comprises scanning a sample by a light, receiving a light from the sample, to acquire a scanned image data, and storing the scanned image data obtained by scanning a region of a predetermined size every time a region scanned by the light reaches a predetermined size, sequentially.
    Type: Application
    Filed: September 19, 2001
    Publication date: May 23, 2002
    Applicant: Olympus Optical co., Ltd.
    Inventor: Yujin Arai
  • Patent number: 6111259
    Abstract: A color chart where hue and saturation are changed variously with lightness kept constant is outputted onto a CRT monitor (or a color printer) beforehand. The display color corresponding to a specific wavelength of fluorescence in visual observation is specified on the color chart. The hue and saturation for the display color at that time are stored as color conversion parameters in a data processing unit. Thereafter, the color tone of the one with a specific wavelength of fluorescence among the luminance data of fluorescence of the observed specimen is corrected using the color conversion parameters. The resulting observed image is outputted to the CRT monitor (or color printer). This enables color reproduction of the observed image easily.
    Type: Grant
    Filed: September 15, 1998
    Date of Patent: August 29, 2000
    Assignee: Olympus Optical Co., Ltd.
    Inventor: Yujin Arai
  • Patent number: 5945669
    Abstract: A laser scan microscope irradiates a sample with a laser beam while simultaneously scanning the laser beam over the sample, and processes an optical signal obtained thereby so as to obtain image data. The laser scan microscope is provided with a photoelectric converting unit, a sensitivity adjuster, and a sampling/converting unit. The photoelectric converting unit converts an optical signal from the sample into an electric signal. The sensitivity adjuster adjusts the sensitivity of the photoelectric converter such that an output value of the photoelectric converting unit becomes closer to a predetermined reference value. The sampling/converting unit samples sensitivity information determined for the photoelectric converter, in accordance with a scanning speed, and converts the sampled sensitivity information into a light measurement value used for obtaining the image data.
    Type: Grant
    Filed: August 22, 1997
    Date of Patent: August 31, 1999
    Assignee: Olympus Optical Co., Ltd.
    Inventor: Yujin Arai