Patents by Inventor Takafumi Takeuchi

Takafumi Takeuchi 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).

  • Gas detection device and gas detection method
    Patent number: 11977007
    Abstract: Siloxane compounds are removed from the atmospheres by silica supporting an organic sulfonic acid compound. The silica with the organic sulfonic acid compound has a specific surface area down to 500 m2/g and up to 750 m2/g and a pore volume down to 0.8 m3/g and up to 1.2 m3/g, both measured by nitrogen gas adsorption method and has a pore diameter down to 4 nm and up to 8 nm, at the peak of differential pore volume measured by nitrogen gas adsorption method. The durability of gas sensing element against siloxanes is improved.
    Type: Grant
    Filed: May 1, 2020
    Date of Patent: May 7, 2024
    Assignees: FIGARO ENGINEERING INC., NEW COSMOS ELECTRIC CO., LTD., UNIVERSITY PUBLIC CORPORATION OSAKA
    Inventors: Masato Takeuchi, Junpei Furuno, Kenta Fukui, Kenichi Yoshioka, Tatsuya Tanihira, Masakazu Sai, Takafumi Taniguchi, Hirokazu Mitsuhashi
  • Gas detector
    Patent number: 11940432
    Abstract: A gas detector comprises a gas detection unit and a filter introducing surrounding atmosphere to the gas detection unit. The filter comprises a gas-permeable organic polymer membrane having an acidic group or a basic group.
    Type: Grant
    Filed: July 25, 2019
    Date of Patent: March 26, 2024
    Assignees: FIGARO ENGINEERING INC., NEW COSMOS ELECTRIC CO., LTD., UNIVERSITY PUBLIC CORPORATION OSAKA
    Inventors: Masato Takeuchi, Junpei Furuno, Kenta Fukui, Kuniyuki Izawa, Masakazu Sai, Hirokazu Mitsuhashi, Takafumi Taniguchi
  • Illumination apparatus for showcase
    Patent number: 9121583
    Abstract: An illumination apparatus (13) is configured so that the position of a pair of power supply terminals can be arbitrarily adjusted in the rightward/leftward direction corresponding to the interval between posts, and the position of the illumination apparatus can be arbitrarily adjusted in the forward/backward direction corresponding to the length of shelf supports. The illumination apparatus (13) includes a pair of power supply terminals (14, 15). The power supply terminal (14) (positive power supply terminal) comes in contact with a shelf support (6), and the power supply terminal (15) (negative power supply terminal) comes in contact with a shelf support (7) to supply power to the illumination apparatus (13). The illumination apparatus (13) is positioned between a shelf board (8) and the shelf supports (6, 7) via the power supply terminals (14, 15).
    Type: Grant
    Filed: November 15, 2011
    Date of Patent: September 1, 2015
    Inventor: Takafumi Takeuchi
  • ILLUMINATION APPARATUS FOR SHOWCASE
    Publication number: 20130286651
    Abstract: An illumination apparatus (13) is configured so that the position of a pair of power supply terminals can be arbitrarily adjusted in the rightward/leftward direction corresponding to the interval between posts, and the position of the illumination apparatus can be arbitrarily adjusted in the forward/backward direction corresponding to the length of shelf supports. The illumination apparatus (13) includes a pair of power supply terminals (14, 15). The power supply terminal (14) (positive power supply terminal) comes in contact with a shelf support (6), and the power supply terminal (15) (negative power supply terminal) comes in contact with a shelf support (7) to supply power to the illumination apparatus (13). The illumination apparatus (13) is positioned between a shelf board (8) and the shelf supports (6, 7) via the power supply terminals (14, 15).
    Type: Application
    Filed: November 15, 2011
    Publication date: October 31, 2013
    Inventor: Takafumi Takeuchi