Patents by Inventor Kouhei Tajima

Kouhei Tajima 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: 11955612
    Abstract: A power storage system with excellent characteristics is provided. A power storage system with a high degree of safety is provided. A power storage system with less deterioration is provided. A storage battery with excellent characteristics is provided. The power storage system includes a neural network and a storage battery. The neural network includes an input layer, an output layer, and one or more hidden layers between the input layer and the output layer. The predetermined hidden layer is connected to the previous hidden layer or the previous input layer by a predetermined weight coefficient, and connected to the next hidden layer or the next output layer by a predetermined weight coefficient. In the storage battery, voltage and time at which the voltage is obtained are measured as one of sets of data. The sets of data measured at different times are input to the input layer and the operational condition of the storage battery is changed in accordance with a signal output from the output layer.
    Type: Grant
    Filed: January 6, 2023
    Date of Patent: April 9, 2024
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Kazutaka Kuriki, Ryota Tajima, Kouhei Toyotaka, Hideaki Shishido, Toshiyuki Isa
  • Patent number: 9745241
    Abstract: The present invention relates to a production method of hexachloroacetone, including performing a reaction between at least one kind of compound (A) selected from the group consisting of acetone and chloroacetones having a chlorine atom number of from 1 to 5, and a chlorine molecule (B) in a solvent in the presence of an activated carbon, to obtain the hexachloroacetone.
    Type: Grant
    Filed: June 30, 2016
    Date of Patent: August 29, 2017
    Assignee: ASAHI GLASS COMPANY, LIMITED
    Inventors: Hidekazu Okamoto, Kouhei Tajima, Tsutomu Naganuma, Tomoyuki Fujita, Shingo Nomura
  • Publication number: 20160304428
    Abstract: The present invention relates to a production method of hexachloroacetone, including performing a reaction between at least one kind of compound (A) selected from the group consisting of acetone and chloroacetones having a chlorine atom number of from 1 to 5, and a chlorine molecule (B) in a solvent in the presence of an activated carbon, to obtain the hexachloroacetone.
    Type: Application
    Filed: June 30, 2016
    Publication date: October 20, 2016
    Applicant: ASAHI GLASS COMPANY, LIMITED
    Inventors: Hidekazu OKAMOTO, Kouhei TAJIMA, Tsutomu NAGANUMA, Tomoyuki FUJITA, Shingo NOMURA
  • Publication number: 20100249436
    Abstract: The present invention is to provide a novel production process capable of selectively producing various kinds of carbonate compounds without any inhibition in high yields without using phosgene and without producing hydrogen chloride as a by-product. The present invention relates to a process for producing a compound having a carbonate bond by reacting a compound (1) with a compound having one OH group or a compound having two or more OH groups in the presence of a halogen salt. In the formula (1) shown below, X1 to X6 each represents a hydrogen atom or a halogen atom, at least one of X1 to X3 is a halogen atom, and at least one of X4 to X6 is a halogen atom.
    Type: Application
    Filed: June 2, 2010
    Publication date: September 30, 2010
    Inventors: Hidekazu OKAMOTO, Kouhei Tajima, Takashi Okazoe
  • Publication number: 20100240912
    Abstract: The present invention is to provide a production process capable of selectively producing various kinds of fluorine-containing carbonate compounds without any inhibition in high yields without using phosgene and without producing hydrogen chloride as a by-product. The present invention relates to a process for producing a fluorine-containing compound having a carbonate bond by reacting a compound (1) with a fluorine-containing compound having an OH group. In the formula (1) shown below, X1 to X6 each represents a hydrogen atom or a halogen atom, at least one of X1 to X3 is a halogen atom, and at least one of X4 to X6 is a halogen atom.
    Type: Application
    Filed: June 2, 2010
    Publication date: September 23, 2010
    Inventors: Hidekazu OKAMOTO, Kouhei Tajima, Takashi Okazoe