Patents by Inventor Keiichiro Iwanami

Keiichiro Iwanami 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).

  • Water heating system including multi-function heat source apparatus
    Patent number: 11149965
    Abstract: When a hot water supply operation is started, a single mode is used in which hot water is output only from a second hot water supply circuit of a water heater, by cut-off of a flow path in a first hot water supply circuit of a space-heating water heater by a cut-off mechanism. When a load imposed by hot water supply by the second hot water supply circuit increases during the hot water supply operation in the single mode, the cut-off mechanism is opened to start hot water output from the first hot water supply circuit and a hot water supply operation in a parallel mode is performed in which hot water is output from both of the first hot water supply circuit and the second hot water supply circuit.
    Type: Grant
    Filed: June 20, 2018
    Date of Patent: October 19, 2021
    Assignee: NORITZ CORPORATION
    Inventors: Rena Kusachi, Yoshifumi Atobe, Naoki Tsuda, Keiichiro Iwanami, Hiroshi Morimoto, Akihisa Kageyama, Takehito Yokoyama, Midori Yokoyama
  • WATER HEATING SYSTEM INCLUDING MULTI-FUNCTION HEAT SOURCE APPARATUS
    Publication number: 20180372343
    Abstract: When a hot water supply operation is started, a single mode is used in which hot water is output only from a second hot water supply circuit of a water heater, by cut-off of a flow path in a first hot water supply circuit of a space-heating water heater by a cut-off mechanism. When a load imposed by hot water supply by the second hot water supply circuit increases during the hot water supply operation in the single mode, the cut-off mechanism is opened to start hot water output from the first hot water supply circuit and a hot water supply operation in a parallel mode is performed in which hot water is output from both of the first hot water supply circuit and the second hot water supply circuit.
    Type: Application
    Filed: June 20, 2018
    Publication date: December 27, 2018
    Applicant: NORITZ CORPORATION
    Inventors: Rena Kusachi, Yoshifumi Atobe, Naoki Tsuda, Keiichiro Iwanami, Hiroshi Morimoto, Akihisa Kageyama, Takehito Yokoyama, Midori Yokoyama