Patents by Inventor Yasuhiko Tada

Yasuhiko Tada 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: 20230104790
    Abstract: Provided is a method for evaluating a sample, the method including using a mixture containing a sample including at least one member selected from the group consisting of cell support-derived components, a cell suspension containing cells, an evaluation sample obtained from a cell suspension, a sample containing a liquid and microcarriers for use in cell culture, and a sample containing a liquid obtained following treatment of microcarriers, together with at least one substance selected from the group consisting of an aromatic compound having at least one functional group selected from the group consisting of a hydroxyl group, an amino group, a nitro group and a carbonyl group, and a fluorescent dye.
    Type: Application
    Filed: September 25, 2020
    Publication date: April 6, 2023
    Applicant: Showa Denko Materials Co., Ltd.
    Inventors: Masashi Maruyama, Hirotaka Sakuma, Yushi Sato, Yasuhiko Tada
  • Publication number: 20220315898
    Abstract: One embodiment relates to a method for manufacturing a cell suspension, the method including (A), (B) and (C) described below: (A) culturing adherent cells in a cell suspension containing the adherent cells, a microcarrier and a medium, and having a volume of at least 0.3 L, (B) culturing the adherent cells in a cell suspension containing the adherent cells obtained through (A), a microcarrier and a medium, and having a volume of at least 5 L, and (C) culturing the adherent cells in a cell suspension containing the adherent cells obtained through (B), a microcarrier and a medium, and having a volume of at least 10 L.
    Type: Application
    Filed: December 22, 2020
    Publication date: October 6, 2022
    Applicant: Showa Denko Materials Co., Ltd.
    Inventors: Shangwu Chen, Fumiko Nakagawa, Yasuhiko Tada, Masahiro Okanojo, Yushi Sato, Yuma Suzuki, Katsuhiko Nakashima, Ryosuke Takahashi
  • Publication number: 20220306980
    Abstract: Apparatus, system, and method are disclosed for cell recovery or cell separation. A cell separation system has at least a first container having a first filter for separating a first removal target from a suspension comprising cells and a removal target including at least the first removal target and a second removal target; a cell separation apparatus; a first flow path connecting the first container and the cell separation apparatus; and a first pump interposed in the first flow path for transferring the suspension from the first container to the cell separation apparatus by decompression suction, for example.
    Type: Application
    Filed: December 15, 2020
    Publication date: September 29, 2022
    Applicant: SHOWA DENKO MATERIALS CO., LTD.
    Inventors: Yushi Sato, Masahiro Okanojo, Shangwu Chen, Katsuhiko Nakashima, Ryosuke Takahashi, Yasuhiko Tada
  • Patent number: 11105690
    Abstract: To address the problem of providing a temperature history indicator capable of specifying a time when a temperature deviated from a set temperature range, a temperature history indicator according to the present invention is characterized in being provided with a substrate and temperature indicators that irreversibly change color upon deviation from a set temperature range, and in that a plurality of the temperature indicators are provided on the substrate, the temperatures at which the temperature indicators change color a within ±2° C. of each other, and the temperature indicators change color after different amounts of time from deviation from the set temperature range.
    Type: Grant
    Filed: April 7, 2017
    Date of Patent: August 31, 2021
    Assignee: Hitachi, Ltd.
    Inventors: Yasuhiko Tada, Tomotoshi Ishida, Hiroshi Sasaki, Kohhei Aida, Masahiro Kawasaki
  • Patent number: 11008415
    Abstract: In a conventional self-healing material, although the resin properties after self-healing are restored to the same level as the initial refractoriness and strength of the resin, no further extension of life can be expected. A resin cured product according to the present invention includes: a first vinyl monomer having an ester bond; a second vinyl monomer having a hydroxyl group; a transesterification reaction catalyst; and a boron compound.
    Type: Grant
    Filed: July 7, 2017
    Date of Patent: May 18, 2021
    Assignee: HITACHI, LTD.
    Inventors: Yuri Kajihara, Takahito Muraki, Yasuhiko Tada, Jun Nunoshige, Takeshi Kondo
  • Patent number: 10989700
    Abstract: A purpose of the present invention is to provide a temperature history indicator that allows for visual confirmation of whether the temperature is at or below a prescribed temperature as well as simple conversion of this information into data. A temperature history indicator according to the present invention is characterized by being provided with a label layer and a temperature-indicating layer laminated above or below the label layer, wherein the temperature-indicating layer includes a substance having at crystallization starting temperature of 10° C. or lower and a melting point at least 20° C. higher than the crystallization starting temperature.
    Type: Grant
    Filed: July 22, 2016
    Date of Patent: April 27, 2021
    Assignee: Hitachi, Ltd.
    Inventors: Sukekazu Aratani, Hiroshi Sasaki, Toyotaka Yuasa, Kohhei Aida, Yasuhiko Tada, Masahiro Kawasaki
  • Patent number: 10983013
    Abstract: The present invention addresses the problem of providing a temperature sensing body capable of sensing both a temperature increase and a temperature decrease, and having an anti-tampering function. In order to solve said problem, this temperature sensing body is characterized by including: a first ink in which a temperature Ta1 for initiating color disappearance when the temperature rises and a temperature Td1 for initiating color development when the temperature falls are different; and a second ink in which a temperature Ta2 for initiating color disappearance when the temperature rises and a temperature Td2 for initiating color development when the temperature falls are different, wherein the temperature Ta1 for initiating color disappearance, the temperature Td1 for initiating color development, the temperature Ta2 for initiating color disappearance, and the temperature Td2 for initiating color development have the relationship, Td1<Td2<Ta1<Ta2.
    Type: Grant
    Filed: October 21, 2015
    Date of Patent: April 20, 2021
    Assignee: HITACHI, LTD.
    Inventors: Yasuhiko Tada, Masahiro Kawasaki, Kohhei Aida, Hiroshi Sasaki, Toyotaka Yuasa, Hiroyuki Kagawa
  • Patent number: 10894425
    Abstract: This printing device is provided with a first ink container that contains a first ink; a second ink container that contains a second ink; temperature adjusting units that adjust the temperature of the first ink contained in the first ink container and/or the temperature of the second ink contained in the second ink container; a nozzle that sprays the inks; and a control unit that controls the first temperature adjusting unit and the second temperature adjusting unit.
    Type: Grant
    Filed: March 8, 2017
    Date of Patent: January 19, 2021
    Assignee: Hitachi, Ltd.
    Inventors: Kohhei Aida, Yasuhiko Tada, Hiroshi Sasaki, Masahiro Kawasaki
  • Publication number: 20190316975
    Abstract: To address the problem of providing a temperature history indicator capable of specifying a time when a temperature deviated from a set temperature range, a temperature history indicator according to the present invention is characterized in being provided with a substrate and temperature indicators that irreversibly change color upon deviation from a set temperature range, and in that a plurality of the temperature indicators are provided on the substrate, the temperatures at which the temperature indicators change color a within ±2° C. of each other, and the temperature indicators change color after different amounts of time from deviation from the set temperature range.
    Type: Application
    Filed: April 7, 2017
    Publication date: October 17, 2019
    Inventors: Yasuhiko TADA, Tomotoshi ISHIDA, Hiroshi SASAKI, Kohhei AIDA, Masahiro KAWASAKI
  • Publication number: 20190286176
    Abstract: This printing device is provided with a first ink container that contains a first ink; a second ink container that contains a second ink; temperature adjusting units that adjust the temperature of the first ink contained in the first ink container and/or the temperature of the second ink contained in the second ink container; a nozzle that sprays the inks; and a control unit that controls the first temperature adjusting unit and the second temperature adjusting unit.
    Type: Application
    Filed: March 8, 2017
    Publication date: September 19, 2019
    Applicant: Hitachi, Ltd.
    Inventors: Kohhei AIDA, Yasuhiko TADA, Hiroshi SASAKI, Masahiro KAWASAKI
  • Publication number: 20190202959
    Abstract: In a conventional self-healing material, although the resin properties after self-healing are restored to the same level as the initial refractoriness and strength of the resin, no further extension of life can be expected. A resin cured product according to the present invention includes: a first vinyl monomer having an ester bond; a second vinyl monomer having a hydroxyl group; a transesterification reaction catalyst; and a boron compound.
    Type: Application
    Filed: July 7, 2017
    Publication date: July 4, 2019
    Applicant: HITACHI, LTD.
    Inventors: Yuri KAJIHARA, Takahito MURAKI, Yasuhiko TADA, Jun NUNOSHIGE, Takeshi KONDO
  • Patent number: 10253362
    Abstract: The purpose of the present invention is to provide a DNA transport control device having excellent reliability and durability, and a DNA sequencing device that uses the DNA transport control device. The present invention provides a DNA transport control device having a nanopore which allows for the passage of only the DNA strand of a single molecule, and a DNA sequencing device that uses the DNA transport control device. The DNA transport control device is characterized by the following: including a base material having openings and a thin film a block copolymer formed on the base material; the thin film including microdomains that are formed as a result of self-assembly of the block copolymer and that penetrate the thin film, and a matrix surrounding the microdomains; and the nanopore being formed from one opening in the base material and a single microdomain.
    Type: Grant
    Filed: November 4, 2014
    Date of Patent: April 9, 2019
    Assignee: Hitachi High-Technologies Corporation
    Inventors: Hiroshi Yoshida, Rena Akahori, Yasuhiko Tada, Shohei Terada, Takanobu Haga, Takashi Anazawa
  • Publication number: 20180306649
    Abstract: The present invention addresses the problem of providing a temperature sensing body capable of sensing both a temperature increase and a temperature decrease, and having an anti-tampering function. In order to solve said problem, this temperature sensing body is characterized by including: a first ink in which a temperature Ta1 for initiating color disappearance when the temperature rises and a temperature Td1 for initiating color development when the temperature falls are different; and a second ink in which a temperature Ta2 for initiating color disappearance when the temperature rises and a temperature Td2 for initiating color development when the temperature falls are different, wherein the temperature Ta1 for initiating color disappearance, the temperature Td1 for initiating color development, the temperature Ta2 for initiating color disappearance, and the temperature Td2 for initiating color development have the relationship, Td1<Td2<Ta1<Ta2.
    Type: Application
    Filed: October 21, 2015
    Publication date: October 25, 2018
    Applicant: HITACHI, LTD.
    Inventors: Yasuhiko TADA, Masahiro KAWASAKI, Kohhei AIDA, Hiroshi SASAKI, Toyotaka YUASA, Hiroyuki KAGAWA
  • Patent number: 10086313
    Abstract: An object of the present invention is to separate a material to be separated at a low cost and constant accuracy when the material to be separated is separated from a mobile phase containing the material to be separated through the passing of the mobile phase through a stationary phase, even if the mobile phase has a large volume. A separation device characterized in that a separation column provided with a stationary phase having a volume capable of processing the entire volume of a mobile phase containing a material to be separated is provided, the separation column is replaceable, and the usage count of the stationary phase reaches a lifetime count through the processing of one batch.
    Type: Grant
    Filed: June 19, 2014
    Date of Patent: October 2, 2018
    Assignee: HITACHI, LTD.
    Inventors: Keisuke Shibuya, Yasuhiko Tada, Takeyuki Kondo, Sei Murakami
  • Publication number: 20180215129
    Abstract: A functionally graded material according to the present invention adopts, for example, the following configuration. A functionally graded material is constituted by laminating a plurality of resin compositions. Among the plurality of resin compositions, a first resin composition has a different property from a second resin composition adjacent to the first resin composition. An interface between the first resin composition and the second resin composition is joined by a dynamic covalent bond.
    Type: Application
    Filed: July 31, 2015
    Publication date: August 2, 2018
    Applicant: HITACHI, LTD.
    Inventors: Yasuhiko TADA, Takahito MURAKI, Yuri KAJIHARA, Takeshi KONDO, Tadashi ARAI
  • Publication number: 20180217114
    Abstract: A purpose of the present invention is to provide a temperature history indicator that allows for visual confirmation of whether the temperature is at or below a prescribed temperature as well as simple conversion of this information into data. A temperature history indicator according to the present invention is characterized by being provided with a label layer and a temperature-indicating layer laminated above or below the label layer, wherein the temperature-indicating layer includes a substance having at crystallization starting temperature of 10° C. or lower and a melting point at least 20° C. higher than the crystallization starting temperature.
    Type: Application
    Filed: July 22, 2016
    Publication date: August 2, 2018
    Inventors: Sukekazu ARATANI, Hiroshi SASAKI, Toyotaka YUASA, Kohhei AIDA, Yasuhiko TADA, Masahiro KAWASAKI
  • Publication number: 20180086876
    Abstract: It is an object of the present invention to provide a thermosetting resin composition which allows stress relaxation in an ester exchange reaction and the long-term use of the thermosetting resin composition having such a structure. A thermosetting resin composition of the present invention contains: an ester bond; and a functional group protected by a protecting group. The functional group is deprotected by external stimulus. The functional group and the ester bond can be subjected to an ester exchange reaction.
    Type: Application
    Filed: January 26, 2015
    Publication date: March 29, 2018
    Applicant: HITACHI, LTD.
    Inventors: Yasuhiko TADA, Takahito MURAKI, Yuri KAJIHARA
  • Publication number: 20180009955
    Abstract: A resin produced by a conventional technique has a weak nature in terms of hydrolysis resistance. For example, in a case where the resin produced by a conventional technique is used in an area with a highly humid climate such as Japan for a long period of time, deterioration of the resin due to hydrolysis becomes a concern. A resin composition is described that is optimized in the molecular structure design of the resin and in the catalyst in order to improve the hydrolysis resistance. Specifically, the resin composition contains (1) a copolymer of a vinyl compound having two or more epoxy groups, a carboxylic acid anhydride, and a transesterification reaction catalyst, or (2) a copolymer of a vinyl compound having two or more carboxylic acid anhydride groups, an epoxy, and a transesterification reaction catalyst.
    Type: Application
    Filed: January 12, 2016
    Publication date: January 11, 2018
    Applicant: HITACHI, LTD.
    Inventors: Yuri KAJIHARA, Takahito MURAKI, Tadashi ARAI, Yasuhiko TADA
  • Publication number: 20160244823
    Abstract: The purpose of the present invention is to provide a DNA transport control device having excellent reliability and durability, and a DNA sequencing device that uses the DNA transport control device. The present invention provides a DNA transport control device having a nanopore which allows for the passage of only the DNA strand of a single molecule, and a DNA sequencing device that uses the DNA transport control device. The DNA transport control device is characterized by the following: including a base material having openings and a thin film a block copolymer formed on the base material; the thin film including microdomains that are formed as a result of self-assembly of the block copolymer and that penetrate the thin film, and a matrix surrounding the microdomains; and the nanopore being formed from one opening in the base material and a single microdomain.
    Type: Application
    Filed: November 4, 2014
    Publication date: August 25, 2016
    Inventors: Hiroshi YOSHIDA, Rena AKAHORI, Yasuhiko TADA, Shohei TERADA, Takanobu HAGA, Takashi ANAZAWA
  • Publication number: 20160222339
    Abstract: Provided are a cell separation and collection membrane capable of suppressing non-specific adsorption of cells while specifically adsorbing target cells; a culturing sheet and a culturing apparatus which use the membrane; and a cell separation and collection method. The cell separation and collection membrane included in the culturing sheet comprises: a support; a polymer site fixed to the support and having a changeable structure in accordance with a temperature; a cell adsorbing site bound to the polymer site, exposed relative to an outer surface of the support, and specifically adsorbing a target cell when the cell adsorbing site is brought into contact with a treatment solution containing the target cells; and a hydrophilic site exposed relative to the outer surface and to be brought into contact with the treatment solution.
    Type: Application
    Filed: September 9, 2013
    Publication date: August 4, 2016
    Inventors: Yasuhiko TADA, Keisuke SHIBUYA, Yui SUGITA