Patents by Inventor Rie IJICHI

Rie IJICHI 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: 20240150708
    Abstract: A cell culture method includes performing adherent culture of cells on a coat layer layered on a surface of a cell culture container by placing a culture medium and the cells in the cell culture container. The coat layer includes a layer (i) that includes a layer (i-1) including gelatin or casein and a layer (i-2) that includes a polycationic material and a layer (ii) that is layered on the layer (i) and includes a cell adhesion factor. The layer (ii) is disposed at a position at which the layer (ii) comes into contact with the cells, or the coat layer includes the layer (i) and the layer (i) is disposed at a position at which the layer (i) comes into contact with the cells, and the culture medium includes the cell adhesion factor.
    Type: Application
    Filed: January 12, 2024
    Publication date: May 9, 2024
    Applicant: Ricoh Company, Ltd.
    Inventors: Momoko Shionoiri, Tomoyuki Aratani, Rie Ijichi, Tatsuya Sameshima, Shinnosuke Koshizuka, Tomofumi Kitazawa, Tomoaki Nakayama, Yuki Kaga
  • Publication number: 20230303972
    Abstract: A method for simply producing an in vitro genetic disease model cell exhibiting a high pathological reproducibility of a genetic disease and having the same gene background as a control cell is provided. The method for producing an in vitro genetic disease model cell includes inhibiting a responsible gene of a genetic disease of interest from being expressed in a subject differentiated cell derived from a pluripotent stem cell or an adult stem cell.
    Type: Application
    Filed: March 20, 2023
    Publication date: September 28, 2023
    Applicant: Ricoh Company, Ltd.
    Inventor: Rie IJICHI
  • Publication number: 20230105330
    Abstract: A cell-containing structure is provided that allows ready-to-use nerve drug response evaluation with high reproducibility to be easily performed. The cell-containing structure for evaluating an electrical property of neurons includes: (a) a culture surface to which the neurons are able to be adhered; (b) a cell mass that is adhered to the culture surface and contains at least one of the neurons; and (c) a plurality of electrodes for measuring the electrical property of the cell mass, wherein a spontaneous firing frequency of cells contained in the cell mass is 0.25 Hz or more per electrode.
    Type: Application
    Filed: September 27, 2022
    Publication date: April 6, 2023
    Applicant: Ricoh Company, Ltd.
    Inventors: Yuki KAGA, Tomoaki NAKAYAMA, Tomoyuki Aratani, Shinnosuke Koshizuka, Tatsuya Sameshima, Momoko Shionoiri, Tomofumi Kitazawa, Rie Ijichi
  • Publication number: 20210371784
    Abstract: The invention provides a cell-containing vessel comprising a plurality of neural cell-containing spheroids for which the variation calculated using the calculation method described below is less than 20%, wherein the neural cell-containing spheroids contain a plurality of types of cells including neural cells, (Calculation Method) Calcium transient assays are conducted for each of a plurality of neural cell-containing spheroids, a number of spontaneous oscillations in a 10-minute period is measured, an average and standard deviation for the number of spontaneous oscillations are calculated, and a variation is calculated using formula (1) below: Variation (%)=standard deviation for number of spontaneous oscillations/average number of spontaneous oscillations×100??(1).
    Type: Application
    Filed: May 19, 2021
    Publication date: December 2, 2021
    Inventors: Rie IJICHI, Tomoyuki ARATANI, Tomoaki NAKAYAMA, Shinnosuke KOSHIZUKA
  • Publication number: 20210371816
    Abstract: A method of producing a cell-containing container is provided, including a process in which pluripotent stem cells that have been induced to differentiate into neurons, and astrocytes are mixed and seeded in a cell culture container in which an electrode array is arranged on a culture surface, and a process in which the cell culture container is incubated, and as a result, the pluripotent stem cells and the astrocytes adhere to the culture surface, and the pluripotent stem cells differentiate into neurons.
    Type: Application
    Filed: May 24, 2021
    Publication date: December 2, 2021
    Inventors: Tomoaki NAKAYAMA, Rie IJICHI, Tomoyuki ARATANI, Shinnosuke KOSHIZUKA