Patents by Inventor Takafumi Miyagi

Takafumi Miyagi 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: 10378674
    Abstract: The hot and cold water mixing valve device includes a hot and cold water mixing valve unit; a flow control valve unit; a valve device main body; a hot and cold water mixing valve housing; and a flow control valve housing; and wherein the valve device main body includes: a hot water passageway permitting communication between only the hot water inlet of the valve device main body and the hot water inlet of the hot and cold water mixing valve unit; and a cold water passageway permitting communication between only the cold water inlet of the valve device main body and the cold water inlet of the hot and cold water mixing valve unit are formed on the interior of the valve device main body.
    Type: Grant
    Filed: March 9, 2017
    Date of Patent: August 13, 2019
    Assignee: TOTO LTD.
    Inventors: Masaki Hanazono, Takafumi Miyagi, Emiko Sumimoto, Yoshihiro Kiyofuji
  • Publication number: 20170277208
    Abstract: The hot and cold water mixing valve device includes a hot and cold water mixing valve unit; a flow control valve unit; a valve device main body; a hot and cold water mixing valve housing; and a flow control valve housing; and wherein the valve device main body includes: a hot water passageway permitting communication between only the hot water inlet of the valve device main body and the hot water inlet of the hot and cold water mixing valve unit; and a cold water passageway permitting communication between only the cold water inlet of the valve device main body and the cold water inlet of the hot and cold water mixing valve unit are formed on the interior of the valve device main body.
    Type: Application
    Filed: March 9, 2017
    Publication date: September 28, 2017
    Inventors: Masaki HANAZONO, Takafumi MIYAGI, Emiko SUMIMOTO, Yoshihiro KIYOFUJI
  • Patent number: 8235353
    Abstract: The present invention is a water faucet device (2a) connected to pipes and buried in a mounting surface (W1), including: a water conveying portion main body (20) having an inflow-side connecting portion (20a), an outflow-side connecting portion (20b), and double pipe connecting portions (20c, 20d) respectively communicating with these; a push valve (30) opened and closed by a pushing operation; a valve receiving main body, positioned at a predetermined position relative to the mounting surface, and having double pipe joining portions (26a, 26b) slidably joined to a double pipe connecting portion in a direction approximately perpendicular to the mounting surface, and a push valve receiving recess (26c) for receiving the push valve; and a push button unit (10a) disposed on the mounting surface, furnished with a push button (12b) for pushing the operating portion of a push valve.
    Type: Grant
    Filed: August 12, 2010
    Date of Patent: August 7, 2012
    Assignee: Toto Ltd.
    Inventors: Takafumi Miyagi, Shoji Miura
  • Publication number: 20110005608
    Abstract: The present invention is a water faucet device (2a) connected to pipes and buried in a mounting surface (W1), including: a water conveying portion main body (20) having an inflow-side connecting portion (20a), an outflow-side connecting portion (20b), and double pipe connecting portions (20c, 20d) respectively communicating with these; a push valve (30) opened and closed by a pushing operation; a valve receiving main body, positioned at a predetermined position relative to the mounting surface, and having double pipe joining portions (26a, 26b) slidably joined to a double pipe connecting portion in a direction approximately perpendicular to the mounting surface, and a push valve receiving recess (26c) for receiving the push valve; and a push button unit (10a) disposed on the mounting surface, furnished with a push button (12b) for pushing the operating portion of a push valve.
    Type: Application
    Filed: August 12, 2010
    Publication date: January 13, 2011
    Applicant: TOTO LTD.
    Inventors: Takafumi MIYAGI, Shoji MIURA
  • Patent number: 7017837
    Abstract: A water discharge switching device which is easily miniaturized, readily assembled, and manufactured at low cost and prevents leakage of water. The water discharge switching device includes a foaming water producing and discharging device having a water inlet (1c), an air/water mixing chamber facing the water inlet (1c) and capable of communicating with the water inlet (1c), an air suction port capable of communicating with the air/water mixing chamber, and a foaming water outlet. The switching device also includes a shower water discharging device having a shower water discharge port (2d) and capable of communicating with the water inlet (1c). The shower water discharging device is arranged around the air/water mixing chamber of the foaming water producing and discharging device.
    Type: Grant
    Filed: November 5, 2002
    Date of Patent: March 28, 2006
    Assignee: Toto Ltd.
    Inventors: Youjirou Taketomi, Yasuhiro Takebayashi, Takafumi Miyagi
  • Publication number: 20050001064
    Abstract: A water discharge switching device which is easily miniaturized, readily assembled, and manufactured at low cost and prevents leakage of water. The water discharge switching device includes foaming water producing and discharging means having a water inlet (1c), an air/water mixing chamber facing the water inlet (1c) and capable of communicating with the water inlet (1c), an air suction port capable of communicating with the air/water mixing chamber, and a foaming water outlet; shower water discharging means having a shower water discharge port (2d) and capable of communicating with the water inlet (1c), the shower water discharging means being arranged around the air/water mixing chamber of the foaming water producing and discharging means; and water discharge switching means for selectively switching between the discharge of foaming water from the foaming water producing and discharging means and the discharge of shower water from the shower water discharging means.
    Type: Application
    Filed: November 5, 2002
    Publication date: January 6, 2005
    Inventors: Youjirou Taketomi, Yasuhiro Takebayashi, Takafumi Miyagi