Patents by Inventor Tatsumi Ito

Tatsumi Ito 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: 10371639
    Abstract: Provided is an information processing apparatus, including a testing section performing statistical testing on simple staining data obtained by performing fluorescence measurement on a particle subjected to simple staining with a staining material having a prescribed fluorescence characteristic and unstaining data obtained by performing fluorescence measurement on an unstained particle for comparison for a frequency band, a masking processing section setting, in a case where there is no significant difference between the simple staining data and the unstaining data for the frequency band, the simple staining data to 0 or a prescribed value, and an estimation section estimating, in a manner that double staining data obtained by performing fluorescence measurement on a particle stained with a plurality of staining materials is represented by a linear combination of base vectors representing a distribution of the simple staining data corresponding to each staining material, a combination coefficient of the linea
    Type: Grant
    Filed: May 20, 2013
    Date of Patent: August 6, 2019
    Assignee: Sony Corporation
    Inventors: Masashi Sekino, Yasunobu Kato, Tatsumi Ito
  • Patent number: 10006849
    Abstract: Provided is a particle analyzer capable of suppressing mixture of other particles and analyzing particles with high accuracy. A sample liquid introducing member is disposed immediately below a flow cell of a particle analyzer in a manner movable in a forward direction and a reverse direction relative to a sample liquid introducing direction, and formed by integrating a suction nozzle adapted to suck sample liquid with a sample liquid introducing nozzle disposed inside an introducing unit of the flow cell and adapted to discharge the sucked sample liquid into the flow cell. Furthermore, a movement restriction mechanism adapted to restrict a moving amount of the sample liquid introducing member is provided.
    Type: Grant
    Filed: April 10, 2015
    Date of Patent: June 26, 2018
    Assignee: SONY CORPORATION
    Inventors: Shoji Akiyama, Tatsumi Ito
  • Publication number: 20180126421
    Abstract: A particle sorting apparatus is provided. The particle sorting apparatus includes a first light irradiating unit including a first mirror and a first light source for irradiating a first light to particles flowing through a flow path at a first position; a second light irradiating unit including a second mirror and a second light source configured to irradiate a second light to particles flowing through the flow path at a second position which is different from the first position; a light detecting unit is configured to detect a light emitted from the particles; a sorting unit; and a sorting control unit configured to control sorting of the particles based on data of the particles detected at the light detecting unit and an arrival time associated with a time difference between a light from the first light irradiating unit and a light from the second light irradiating unit; wherein the flow path and the sorting unit are provided within a microchip.
    Type: Application
    Filed: November 13, 2017
    Publication date: May 10, 2018
    Inventor: Tatsumi ITO
  • Patent number: 9855587
    Abstract: There is provided a particle sorting apparatus, including: an excited light irradiating unit for irradiating an excited light to particles flowing through a flow path; a light irradiating unit for detecting a speed for irradiating a light for detecting a speed to the particles at a position different from the excited light; a light detecting unit for detecting a light emitted from the particles; a calculating unit of an arrival time for individually calculating an arrival time of each particle at a sorting unit being communicating with the flow path from a detection time difference between the light derived from the excited light and the light derived from the light for detecting a speed; and a sorting control unit for controlling sorting of the particles, and a method thereof.
    Type: Grant
    Filed: March 24, 2014
    Date of Patent: January 2, 2018
    Assignee: Sony Corporation
    Inventor: Tatsumi Ito
  • Publication number: 20170320104
    Abstract: There is provided a microparticle sorting method including a procedure of collecting a microparticle in a fluid that flows through a main channel in a branch channel that is in communication with the main channel by generating a negative pressure in the branch channel. In the procedure, a flow of a fluid is formed that flows toward a side of the main channel from a side of the branch channel at a communication opening between the main channel and the branch channel.
    Type: Application
    Filed: July 25, 2017
    Publication date: November 9, 2017
    Inventor: TATSUMI ITO
  • Patent number: 9737912
    Abstract: There is provided a microparticle sorting method including a procedure of collecting a microparticle in a fluid that flows through a main channel in a branch channel that is in communication with the main channel by generating a negative pressure in the branch channel. In the procedure, a flow of a fluid is formed that flows toward a side of the main channel from a side of the branch channel at a communication opening between the main channel and the branch channel.
    Type: Grant
    Filed: August 9, 2013
    Date of Patent: August 22, 2017
    Assignee: Sony Corporation
    Inventor: Tatsumi Ito
  • Publication number: 20170074775
    Abstract: Provided is a particle analyzer capable of suppressing mixture of other particles and analyzing particles with high accuracy. A sample liquid introducing member is disposed immediately below a flow cell of a particle analyzer in a manner movable in a forward direction and a reverse direction relative to a sample liquid introducing direction, and formed by integrating a suction nozzle adapted to suck sample liquid with a sample liquid introducing nozzle disposed inside an introducing unit of the flow cell and adapted to discharge the sucked sample liquid into the flow cell. Furthermore, a movement restriction mechanism adapted to restrict a moving amount of the sample liquid introducing member is provided.
    Type: Application
    Filed: April 10, 2015
    Publication date: March 16, 2017
    Inventors: SHOJI AKIYAMA, TATSUMI ITO
  • Patent number: 9448157
    Abstract: There is provided a microparticle sorting apparatus including a main channel through which a fluid including microparticles flows, a branch channel that is in communication with the main channel, an actuator that causes a negative pressure to be generated in the branch channel, and a drive unit that controls a voltage applied to the actuator to cause a change in pressure containing a step waveform component and an undershoot waveform component in the branch channel.
    Type: Grant
    Filed: May 31, 2013
    Date of Patent: September 20, 2016
    Assignee: Sony Corporation
    Inventor: Tatsumi Ito
  • Publication number: 20160045916
    Abstract: A microchip is provided, which includes a substrate including a fluid channel structure. The fluid channel structure includes a first fluid introduction channel and a second fluid introduction channel configured to meet so as to allow merging of a first fluid introduced from the first fluid introduction channel and a second fluid introduced from the second fluid introduction channel. A tapered portion is configured to be positioned after merging the first fluid and the second fluid so as to suppress a spiral flow field generated after the merging.
    Type: Application
    Filed: October 9, 2015
    Publication date: February 18, 2016
    Inventors: Tatsumi ITO, Shoji AKIYAMA, Masaya KAKUTA, Takeshi YAMASAKI
  • Patent number: 9176042
    Abstract: A microchip is provided which includes a first introduction channel, second introduction channels arranged to sandwich the first introduction channel and merged with the first introduction channel from both sides, and a merge channel connected to the first introduction channel and the second introduction channels, where fluids fed from the first and the second introduction channels are merged and flow, wherein the merge channel has a tapered portion formed so that a channel width in a sandwiching direction along which the first introduction channel is sandwiched by the second introduction channels gradually increases along a fluid feeding direction.
    Type: Grant
    Filed: February 18, 2011
    Date of Patent: November 3, 2015
    Assignee: SONY CORPORATION
    Inventors: Tatsumi Ito, Shoji Akiyama, Masaya Kakuta, Takeshi Yamasaki
  • Patent number: 9128055
    Abstract: Provided is an information processing apparatus including an estimation unit that expresses a light intensity distribution, which is obtained by irradiating light to a measurement object of a measurement target having a plurality of substances with mutually different responsive characteristics to the light on a surface and/or an inside of the measurement object, as a linear combination of light intensity distributions, which are obtained by irradiating the light to reference measurement objects, each of which has a single substance, models the light intensity distribution obtained from each of the reference measurement objects so as to follow a predetermined probability distribution, and estimates a combination coefficient of the linear combination from the light intensity distribution obtained from the measurement object of the measurement target.
    Type: Grant
    Filed: July 17, 2012
    Date of Patent: September 8, 2015
    Assignee: Sony Corporation
    Inventors: Masashi Sekino, Yasunobu Kato, Tatsumi Ito
  • Publication number: 20150204774
    Abstract: There is provided a microparticle sorting apparatus including a main channel through which a fluid including microparticles flows, a branch channel that is in communication with the main channel, an actuator that causes a negative pressure to be generated in the branch channel, and a drive unit that controls a voltage applied to the actuator to cause a change in pressure containing a step waveform component and an undershoot waveform component in the branch channel.
    Type: Application
    Filed: May 31, 2013
    Publication date: July 23, 2015
    Applicant: Sony Corporation
    Inventor: Tatsumi Ito
  • Patent number: 9018556
    Abstract: There is provided a microparticle sorting method, including a procedure of collecting a microparticle in a fluid that flows through a main channel in an area that is formed in a manner that a vertical cross-section increases in a flow direction of the fluid at a branch channel which is in communication with the main channel by generating a negative pressure in the branch channel.
    Type: Grant
    Filed: July 17, 2013
    Date of Patent: April 28, 2015
    Assignee: Sony Corporation
    Inventor: Tatsumi Ito
  • Publication number: 20140299522
    Abstract: There is provided a particle sorting apparatus, including: an excited light irradiating unit for irradiating an excited light to particles flowing through a flow path; a light irradiating unit for detecting a speed for irradiating a light for detecting a speed to the particles at a position different from the excited light; a light detecting unit for detecting a light emitted from the particles; a calculating unit of an arrival time for individually calculating an arrival time of each particle at a sorting unit being communicating with the flow path from a detection time difference between the light derived from the excited light and the light derived from the light for detecting a speed; and a sorting control unit for controlling sorting of the particles, and a method thereof.
    Type: Application
    Filed: March 24, 2014
    Publication date: October 9, 2014
    Applicant: Sony Corporation
    Inventor: Tatsumi ITO
  • Publication number: 20140290786
    Abstract: A microfluidic channel includes an agitating flow channel whose central axis is a three-dimensional curve.
    Type: Application
    Filed: March 21, 2014
    Publication date: October 2, 2014
    Applicant: Sony Corporation
    Inventors: Tatsumi Ito, Shin Masuhara
  • Publication number: 20140048458
    Abstract: There is provided a microparticle sorting method including a procedure of collecting a microparticle in a fluid that flows through a main channel in a branch channel that is in communication with the main channel by generating a negative pressure in the branch channel. In the procedure, a flow of a fluid is formed that flows toward a side of the main channel from a side of the branch channel at a communication opening between the main channel and the branch channel.
    Type: Application
    Filed: August 9, 2013
    Publication date: February 20, 2014
    Applicant: Sony Corporation
    Inventor: Tatsumi Ito
  • Publication number: 20140027356
    Abstract: There is provided a microparticle sorting method, including a procedure of collecting a microparticle in a fluid that flows through a main channel in an area that is formed in a manner that a vertical cross-section increases in a flow direction of the fluid at a branch channel which is in communication with the main channel by generating a negative pressure in the branch channel.
    Type: Application
    Filed: July 17, 2013
    Publication date: January 30, 2014
    Inventor: Tatsumi Ito
  • Publication number: 20130323825
    Abstract: Provided is an information processing apparatus, including a testing section performing statistical testing on simple staining data obtained by performing fluorescence measurement on a particle subjected to simple staining with a staining material having a prescribed fluorescence characteristic and unstaining data obtained by performing fluorescence measurement on an unstained particle for comparison for a frequency band, a masking processing section setting, in a case where there is no significant difference between the simple staining data and the unstaining data for the frequency band, the simple staining data to 0 or a prescribed value, and an estimation section estimating, in a manner that double staining data obtained by performing fluorescence measurement on a particle stained with a plurality of staining materials is represented by a linear combination of base vectors representing a distribution of the simple staining data corresponding to each staining material, a combination coefficient of the linea
    Type: Application
    Filed: May 20, 2013
    Publication date: December 5, 2013
    Applicant: Sony Corporation
    Inventors: Masashi Sekino, Yasunobu Kato, Tatsumi Ito
  • Patent number: D757580
    Type: Grant
    Filed: March 7, 2014
    Date of Patent: May 31, 2016
    Assignee: Sony Corporation
    Inventors: Yuji Akiyama, Shoji Akiyama, Gakuji Hashimoto, Hiroto Kasai, Masaya Kakuta, Takeshi Yamasaki, Tatsumi Ito, Masataka Shinoda
  • Patent number: D795724
    Type: Grant
    Filed: April 21, 2016
    Date of Patent: August 29, 2017
    Assignee: SONY CORPORATION
    Inventors: Yuji Akiyama, Shoji Akiyama, Gakuji Hashimoto, Hiroto Kasai, Masaya Kakuta, Takeshi Yamasaki, Tatsumi Ito, Masataka Shinoda