Patents by Inventor Nobuhiko Takeichi

Nobuhiko Takeichi 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).

  • ACTIVE MATERIAL FOR SECONDARY BATTERIES, ELECTRODE FOR SECONDARY BATTERIES, SECONDARY BATTERY AND FLIGHT VEHICLE
    Publication number: 20230238534
    Abstract: An active material used in a secondary battery includes a heterocyclic chemical compound including one or more pyrazine rings and two or more benzene rings, or a salt or derivative thereof. The heterocyclic chemical compound is preferably a chemical compound in which at least 4 oxygen atoms are bonded to the benzene ring. The active material used in the secondary battery may also include phenazine or a salt or derivative thereof. The phenazines are preferably chemical compounds in which at least 4 oxygen atoms are bonded to a benzene ring included in a phenazine structure.
    Type: Application
    Filed: March 30, 2023
    Publication date: July 27, 2023
    Inventors: Takaya SAITO, Koji NISHIYAMA, Yoshiki TAKAYANAGI, Shuntaro MIYAKAWA, Masaru YAO, Minami KATO, Hisanori ANDO, Nobuhiko TAKEICHI
  • Organic sulfur material and method for producing same
    Patent number: 10906869
    Abstract: An organic sulfur material comprising carbon, hydrogen, oxygen, and sulfur as constituent elements, and having peaks in the vicinity of 482 cm?1, 846 cm?1, 1066 cm?1, 1279 cm?1, and 1442 cm?1 in a Raman spectrum detected by Raman spectroscopy, the peak in the vicinity of 1442 cm?1 being most intense, has a high capacity and high heat resistance, although a liquid organic starting material is used.
    Type: Grant
    Filed: March 31, 2016
    Date of Patent: February 2, 2021
    Assignee: National Institute of Advanced Industrial Science and Technology
    Inventors: Hiroshi Senoh, Toshikatsu Kojima, Nobuhiko Takeichi, Hisanori Ando
  • ORGANIC SULFUR MATERIAL AND METHOD FOR PRODUCING SAME
    Publication number: 20180065927
    Abstract: An organic sulfur material comprising carbon, hydrogen, oxygen, and sulfur as constituent elements, and having peaks in the vicinity of 482 cm?1, 846 cm?1, 1066 cm?1, 1279 cm?1, and 1442 cm?1 in a Raman spectrum detected by Raman spectroscopy, the peak in the vicinity of 1442 cm?1 being most intense, has a high capacity and high heat resistance, although a liquid organic starting material is used.
    Type: Application
    Filed: March 31, 2016
    Publication date: March 8, 2018
    Inventors: Hiroshi Senoh, Toshikatsu Kojima, Nobuhiko Takeichi, Hisanori Ando
  • Hybrid hydrogen storage container and method of storing hydrogen in container
    Patent number: 7681753
    Abstract: A pressure container 1 composed of a reinforcing layer 2 and a liner layer 3, with a hydrogen charging pressure of 30 MPa or higher; and a hydrogen absorbing material and a carrier for holding said hydrogen absorbing material (hydrogen absorbing material portion 4) contained in the pressure container 1 are included, and a volume fraction X of the hydrogen absorbing material with ?m?100 kg/m3 with respect to an internal volume of the pressure container 1 is 5(%)?X?20(%), where ?m denotes a maximum hydrogen absorption amount per unit volume of the hydrogen absorbing material (kg/m3); X=100 ·Vm/Vi (%); Vi is an internal volume of the pressure container (L); and Vm is a volume of the hydrogen absorbing material in the pressure container (L).
    Type: Grant
    Filed: January 31, 2003
    Date of Patent: March 23, 2010
    Assignees: JFE Steel Corporation, National Institute of Advanced Industrial Science and Technology, JFE Container Co., Ltd
    Inventors: Tomoyuki Yokota, Kenjiro Hamada, Hidekazu Tsuruta, Nobuhiro Kuriyama, Hiroyuki Takeshita, Nobuhiko Takeichi, Toshio Takano
  • Hybrid hydrogen storage container and method of storing hydrogen in container
    Publication number: 20050166992
    Abstract: A pressure container 1 composed of a reinforcing layer 2 and a liner layer 3, with a hydrogen charging pressure of 30 MPa or higher; and a hydrogen absorbing material and a carrier for holding said hydrogen absorbing material (hydrogen absorbing material portion 4) contained in the pressure container 1 are included, and a volume fraction X of the hydrogen absorbing material with ?m?100 kg/m3 with respect to an internal volume of the pressure container 1 is 5(%)?X?20(%), where am denotes a maximum hydrogen absorption amount per unit volume of the hydrogen absorbing material (kg/m3); X=100 ·Vm/Vi (%); Vi is an internal volume of the pressure container (L); and Vm is a volume of the hydrogen absorbing material in the pressure container (L).
    Type: Application
    Filed: January 31, 2003
    Publication date: August 4, 2005
    Inventors: Tomoyuki Yokota, Kenjiro Hamada, Hidekazu Tsuruta, Nobuhiro Kuriyama, Hiroyuki Takeshita, Nobuhiko Takeichi, Toshio Takano