Patents by Inventor Shinya Sakuma

Shinya Sakuma 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: 10882314
    Abstract: A liquid ejection head and its manufacturing method are capable of reducing the thickness of a protective layer as compared to the traditional technique so as to efficiently transfer the heat energy generated by a heating resistance element to a droplet of liquid such as ink. To achieve this, power supply wirings are provided in the same layer below the heating resistance element.
    Type: Grant
    Filed: October 16, 2019
    Date of Patent: January 5, 2021
    Assignee: Canon Kabushiki Kaisha
    Inventors: Mineo Shimotsusa, Shinya Iwahashi, Sadayoshi Sakuma, Ichiro Saito
  • Publication number: 20200337757
    Abstract: Provided are a device whereby, during process of a process target such as a cell or the like, localized process of a process part is possible without inflicting damage due to heat, and rejoining and regeneration may proceed readily subsequent to process, and whereby an injection substance may be introduced efficiently; and a device for generating bubbles containing a plasma. Through the use of a localized ablation device employing a bubble jetting member having a core formed from a conductive material, a shell part formed from an insulating material, covering the core and including a section extending from the tip of the core, and a space formed between the extended section of the shell part and the tip of the core, a process target can be treated in localized fashion and without inflicting damage.
    Type: Application
    Filed: May 27, 2020
    Publication date: October 29, 2020
    Applicant: JAPAN SCIENCE AND TECHNOLOGY AGENCY
    Inventors: Yoko YAMANISHI, Shinya SAKUMA, Hiroki KURIKI, Fumihito ARAI
  • Patent number: 10766255
    Abstract: Provided is an element substrate with suppressed variations in resistance though having a high resistance. In an element substrate equipped with a heat generating resistor that generates thermal energy for ejecting a liquid, the heat generating resistor is a stacked structure having stacked a plurality of resistor layers including a first resistor layer and a second resistor layer containing a metal silicon nitride and the first resistor layer and the second resistor layer are different from each other in at least one of a silicon content in the metal silicon oxide and a metal element contained in the metal silicon nitride.
    Type: Grant
    Filed: March 29, 2019
    Date of Patent: September 8, 2020
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Shinya Iwahashi, Mineo Shimotsusa, Sadayoshi Sakuma
  • Patent number: 10716610
    Abstract: Provided are a device whereby, during process of a process target such as a cell or the like, localized process of a process part is possible without inflicting damage due to heat, and rejoining and regeneration may proceed readily subsequent to process, and whereby an injection substance may be introduced efficiently; and a device for generating bubbles containing a plasma. Through the use of a localized ablation device employing a bubble jetting member having a core formed from a conductive material, a shell part formed from an insulating material, covering the core and including a section extending from the tip of the core, and a space formed between the extended section of the shell part and the tip of the core, a process target can be treated in localized fashion and without inflicting damage.
    Type: Grant
    Filed: March 1, 2013
    Date of Patent: July 21, 2020
    Assignee: Japan Science and Technology Agency
    Inventors: Yoko Yamanishi, Shinya Sakuma, Hiroki Kuriki, Fumihito Arai
  • Publication number: 20200179918
    Abstract: A dispensing apparatus, a liquid dispensing method, and a cell dispensing method which can dispense liquid with very high accuracy. A dispensing apparatus includes a glass pipette, a tubular elastic member, a rod-shaped member, and a piezoelectric element actuator. A portion of the tubular elastic member located adjacent to a first open end thereof covers a portion of the glass pipette located adjacent to an opening portion thereof. A portion of the tubular elastic member located adjacent to a second open end thereof covers at least a forward end portion of the rod-shaped member. When the piezoelectric element actuator pushes the rod-shaped member toward the opening portion of the glass pipette, the tubular elastic member deforms such that the volume of the internal space of the tubular elastic member decreases.
    Type: Application
    Filed: June 19, 2018
    Publication date: June 11, 2020
    Applicant: NATIONAL UNIVERSITY CORPORATION NAGOYA UNIVERSITY
    Inventors: Shinya SAKUMA, Yusuke KASAI, Fumihito ARAI
  • Patent number: 10669525
    Abstract: Means which enables preparation of a thick cell aggregate by a simple process without an operation of detaching and stacking of cells is disclosed. The method for preparing a three-dimensional cell aggregate by the present invention comprises: a cell encasing step of placing a cell suspension in a cell container; and a pressure application step of applying pressure to cells in the container. The cell encasing step and the pressure application step may be carried out a plurality of times. By the present invention, a thick, robust cell aggregate can be obtained by a simple operation of applying pressure to a cell suspension or a medium containing cells. Since the method does not require an operation of stacking a plurality of cell sheets, the cells are hardly damaged, and the conditions of the cells can be favorably maintained, so that the cells can be advantageously used as a tissue piece for transplantation.
    Type: Grant
    Filed: September 29, 2015
    Date of Patent: June 2, 2020
    Assignees: PUBLIC UNIVERSITY CORPORATION YOKOHAMA CITY UNIVERSITY, OSAKA UNIVERSITY, NATIONAL UNIVERSITY CORPORATION NAGOYA UNIVERSITY
    Inventors: Utako Yokoyama, Yoshihiro Ishikawa, Makoto Kaneko, Shinya Sakuma, Fumihito Arai
  • Publication number: 20200122459
    Abstract: A liquid ejection head capable of reducing the thickness of the protective layer as compared to the traditional technique and efficiently transferring the heat energy generated by the heating resistance element to a droplet such as ink and a method of manufacturing the liquid ejection head provide. To achieve this, a power supply wiring are provided in the same layer below the heating resistance element.
    Type: Application
    Filed: October 16, 2019
    Publication date: April 23, 2020
    Inventors: Mineo Shimotsusa, Shinya Iwahashi, Sadayoshi Sakuma, Ichiro Saito
  • Publication number: 20190362654
    Abstract: The invention provides an inner limiting membrane peeling model that is used in procedure training in peeling of the inner limiting membrane. The model has: a simulated retina and a simulated inner limiting membrane formed on the simulated retina. The simulated inner limiting membrane is formed of a hydrophilic polymer gel that is formed mainly of a water-soluble polymer. At least when used in the above procedure training, the model is disposed with the simulated inner limiting membrane immersed in water or an aqueous solution containing a predetermined solute.
    Type: Application
    Filed: November 16, 2017
    Publication date: November 28, 2019
    Applicant: National University Corporation Nagoya University
    Inventors: Seiji Omata, Takeshi Hayakawa, Shinya Sakuma, Fumihito Arai
  • Patent number: 10491740
    Abstract: An electronic device includes an push button, a fingerprint sensor configured to detect a fingerprint of a finger contacting the push button, and a controller configured to release a locked state when it is determined that the push button has been pressed and that the fingerprint detected by the fingerprint sensor matches preregistered fingerprint information.
    Type: Grant
    Filed: February 16, 2018
    Date of Patent: November 26, 2019
    Assignee: KYOCERA Corporation
    Inventors: Shigeki Tanabe, Hideki Morita, Isao Masuike, Shinya Saito, Yasuhiro Ueno, Koutaro Yamauchi, Manabu Sakuma
  • Publication number: 20190308415
    Abstract: Provided is an element substrate with suppressed variations in resistance though having a high resistance. In an element substrate equipped with a heat generating resistor that generates thermal energy for ejecting a liquid, the heat generating resistor is a stacked structure having stacked a plurality of resistor layers including a first resistor layer and a second resistor layer containing a metal silicon nitride and the first resistor layer and the second resistor layer are different from each other in at least one of a silicon content in the metal silicon oxide and a metal element contained in the metal silicon nitride.
    Type: Application
    Filed: March 29, 2019
    Publication date: October 10, 2019
    Inventors: Shinya Iwahashi, Mineo Shimotsusa, Sadayoshi Sakuma
  • Publication number: 20190301950
    Abstract: In a load sensor detecting a magnitude of an external load applied in a direction parallel to a sheet shape of a sheet-shaped quartz crystal resonator, the load sensor comprising: a quartz crystal resonator layer including the sheet-shaped quartz crystal resonator and a pair of electrode portions on a pair of surfaces opposite to each other in a plate thickness direction of the quartz crystal resonator; and a pair of holding layers disposed to sandwich both sides of the sheet shape of the quartz crystal resonator layer and causing a displacement in substantially the same amount as the quartz crystal resonator layer when the external load is applied to the quartz crystal resonator layer, the holding layers and the quartz crystal resonator layer are made of materials having substantially equivalent rates of thermal expansion.
    Type: Application
    Filed: June 2, 2017
    Publication date: October 3, 2019
    Applicant: NATIONAL UNIVERSITY CORPORATION NAGOYA UNIVERSITY
    Inventors: Fumihito ARAI, Yuichi MUROZAKI, Shinya SAKUMA
  • Patent number: 10336837
    Abstract: [Problem to be solved] There is provided a process for producing an olefin polymer that is capable of producing an olefin polymer having high heat resistance and high molecular weight with excellent catalytic activity. [Solution to problem] The process for producing an olefin polymer includes a step of polymerizing at least one olefin selected from ethylene and ?-olefins having 4 to 30 carbon atoms in the presence of an olefin polymerization catalyst containing a transition metal compound represented by the general formula [I], the olefin polymer including constituent units derived from ethylene and ?-olefins having 4 to 30 carbon atoms in a total amount between more than 50 mol % and not more than 100 mol %, [in the formula [I], R1, R3 and R5 to R16 are each independently a hydrogen atom, a hydrocarbon group or the like; R2 is a hydrocarbon group or the like; R4 is a hydrogen atom; M is a transition metal of Group IV; Q is a halogen atom or the like; and j is an integer of 1 to 4].
    Type: Grant
    Filed: May 30, 2017
    Date of Patent: July 2, 2019
    Assignee: MITSUI CHEMICALS, INC.
    Inventors: Munehito Funaya, Atsushi Sakuma, Ikuko Ebisawa, Shinsuke Kinoshita, Akiko Matsumoto, Hirokazu Tanaka, Shinya Tanaka
  • Patent number: 10336838
    Abstract: [Problem to be solved] There is provided a process for producing an olefin polymer that is capable of producing an olefin polymer having high heat resistance and high molecular weight with excellent catalytic activity. [Solution to problem] The process for producing an olefin polymer includes a step of polymerizing at least one olefin selected from ethylene and ?-olefins having 4 to 30 carbon atoms in the presence of an olefin polymerization catalyst containing a transition metal compound represented by the general formula [I], the olefin polymer including constituent units derived from ethylene and ?-olefins having 4 to 30 carbon atoms in a total amount between more than 50 mol % and not more than 100 mol %, [in the formula [I], R1, R3 and R5 to R16 are each independently a hydrogen atom, a hydrocarbon group or the like; R2 is a hydrocarbon group or the like; R4 is a hydrogen atom; M is a transition metal of Group IV; Q is a halogen atom or the like; and j is an integer of 1 to 4].
    Type: Grant
    Filed: May 30, 2017
    Date of Patent: July 2, 2019
    Assignee: MITSUI CHEMICALS, INC.
    Inventors: Munehito Funaya, Atsushi Sakuma, Ikuko Ebisawa, Shinsuke Kinoshita, Akiko Matsumoto, Hirokazu Tanaka, Shinya Tanaka
  • Publication number: 20190071630
    Abstract: A cell sorting device is characterized by including: a main flow channel (14) through which a liquid containing a row of cells including a target cell flows, and in which a cell separation area for separating the target cell from the row of cells is provided at a halfway position in a flow direction, the main flow channel being formed in a substrate (12); a selection flow channel (16) into which the target cell is pushed out from the main flow channel, the selection flow channel being formed in the substrate so as to branch from the main flow channel downstream of the cell separation area; a sub flow channel (18) through which a separating liquid flows, the separating liquid being for separating the target cell from the row of cells and pushing out the target cell into the selection flow channel, the sub flow channel being formed in the substrate so as to intersect with the main flow channel in the cell separation area; a pair of liquid flow generating members (22) for generating a liquid flow of the separati
    Type: Application
    Filed: March 6, 2017
    Publication date: March 7, 2019
    Inventors: Shinya Sakuma, Takeshi Hayakawa, Fumihito Arai
  • Publication number: 20170218329
    Abstract: Means which enables preparation of a thick cell aggregate by a simple process without an operation of detaching and stacking of cells is disclosed. The method for preparing a three-dimensional cell aggregate by the present invention comprises: a cell encasing step of placing a cell suspension in a cell container; and a pressure application step of applying pressure to cells in the container. The cell encasing step and the pressure application step may be carried out a plurality of times. By the present invention, a thick, robust cell aggregate can be obtained by a simple operation of applying pressure to a cell suspension or a medium containing cells. Since the method does not require an operation of stacking a plurality of cell sheets, the cells are hardly damaged, and the conditions of the cells can be favorably maintained, so that the cells can be advantageously used as a tissue piece for transplantation.
    Type: Application
    Filed: September 29, 2015
    Publication date: August 3, 2017
    Applicants: PUBLIC UNIVERSITY CORPORATION YOKOHAMA CITY UNIVERSITY, OSAKA UNIVERSITY, NATIONAL UNIVERSITY CORPORATION NAGOYA UNIVERSITY
    Inventors: Utako YOKOYAMA, Yoshihiro ISHIKAWA, Makoto KANEKO, Shinya SAKUMA, Fumihito ARAI
  • Publication number: 20150011930
    Abstract: Provided are a device whereby, during process of a process target such as a cell or the like, localized process of a process part is possible without inflicting damage due to heat, and rejoining and regeneration may proceed readily subsequent to process, and whereby an injection substance may be introduced efficiently; and a device for generating bubbles containing a plasma. Through the use of a localized ablation device employing a bubble jetting member having a core formed from a conductive material, a shell part formed from an insulating material, covering the core and including a section extending from the tip of the core, and a space formed between the extended section of the shell part and the tip of the core, a process target can be treated in localized fashion and without inflicting damage.
    Type: Application
    Filed: March 1, 2013
    Publication date: January 8, 2015
    Applicant: Japan Science and Technology Agency
    Inventors: Yoko Yamanishi, Shinya Sakuma, Hiroki Kuriki, Fumihito Arai