Patents by Inventor Takamasa Ina

Takamasa Ina 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).

  • Publication number: 20200378103
    Abstract: A drain socket includes a first connection part connected to a drain pipe of a toilet bowl; a second connection part connected to a drain piping in a floor or the like; and a drain channel body connecting the first connection part and the second connection part. The drain channel body includes an inclined part inclined to one side in the front-back direction toward a lower side. A restriction part is provided at an upstream end portion of the drain channel body. A surface of the restriction part located on the one side where the inclined part is inclined has a portion where a horizontal distance from a center C of the first connection part increases from the center of the surface in the left-right direction toward an end side of the surface in the left-right direction.
    Type: Application
    Filed: May 29, 2020
    Publication date: December 3, 2020
    Applicant: LIXIL Corporation
    Inventors: Maiko NAKAGAWA, Takamasa INA, Hidekazu MIYAKE, Naoto YONEDU
  • Publication number: 20200340229
    Abstract: Provided is a toilet bowl comprising an upper forming body having an upper surface part that forms an upper surface of the toilet bowl in an installed state; and a lower forming body having an inner wall part joined to an inner edge part of the upper surface part, and an outer wall part joined to an outer edge part of the upper surface part. A space part is formed between the inner wall part and the outer wall part. A dimension in an up-down direction from a lower end of the space part to an upper surface of the inner wall part is larger than a dimension in the up-down direction from an upper end of the space part to the upper surface of the inner wall part.
    Type: Application
    Filed: April 23, 2020
    Publication date: October 29, 2020
    Applicant: LIXIL Corporation
    Inventors: Takamasa INA, Kazuki HATTORI, Masamitsu KAKO, Maiko NAKAGAWA, Yu KUROKI, Hiraku KAWAZU
  • Publication number: 20200048888
    Abstract: A flush toilet includes a toilet bowl part structured to have a bowl-like waste receiving surface, a rim part structured to form an upper end side portion of the toilet bowl part, and a water discharge part structured to discharge flush water into the toilet bowl part to form a swirling flow, wherein one surface part out of a front surface part and a rear surface part of the toilet bowl part is provided with one end part of a front-rear direction of the toilet bowl part, and the flush toilet further comprises an upper guide part structured to be provided on a flush water path from the water discharge part to the one end part and guide at least a part of the flush water upward.
    Type: Application
    Filed: August 13, 2019
    Publication date: February 13, 2020
    Applicant: LIXIL Corporation
    Inventors: Takamasa INA, Takuma SATO, Naoto YONEDU, Maiko NAKAGAWA, Hidekazu MIYAKE
  • Patent number: 10392790
    Abstract: A flush toilet of the present invention includes a bowl; a toilet drainage water pathway which communicates with the bowl and a drainage water socket and into which a cleaning water flows from the bowl; and a valve portion which includes a rotating axis and a flapper, and which is configured to open and close the toilet drainage water pathway, the rotating axis being provided in the toilet drainage water pathway, the flapper being connected to the rotating axis and being provided so as to be capable of rotating about the rotating axis.
    Type: Grant
    Filed: August 29, 2016
    Date of Patent: August 27, 2019
    Assignee: LIXIL Corporation
    Inventors: Reo Seike, Kouji Fukuya, Kazuya Yashima, Takamasa Ina, Yousuke Ban
  • Publication number: 20190112799
    Abstract: A flush toilet includes multiple discharge outlets formed in a rim part and provided to discharge flush water in one circumferential direction along an inner peripheral surface of the rim part, and, when a toilet bowl part is divided into four divided regions in plan view by a lateral center line, and a longitudinal center line, the multiple discharge outlets include a first discharge outlet provided in at least one of a first divided region and a second divided region, and a second discharge outlet provided in a third divided region, and a water discharge part is configured such that the amount of flush water discharged through the first discharge outlet is larger than the amount of flush water discharged through the second discharge outlet.
    Type: Application
    Filed: January 24, 2017
    Publication date: April 18, 2019
    Applicant: LIXIL Corporation
    Inventors: Takamasa INA, Takashi MARUYAMA, Kenichi ITO
  • Publication number: 20180245324
    Abstract: A flush toilet of the present invention includes a bowl; a toilet drainage water pathway which communicates with the bowl and a drainage water socket and into which a cleaning water flows from the bowl; and a valve portion which includes a rotating axis and a flapper, and which is configured to open and close the toilet drainage water pathway, the rotating axis being provided in the toilet drainage water pathway, the flapper being connected to the rotating axis and being provided so as to be capable of rotating about the rotating axis.
    Type: Application
    Filed: August 29, 2016
    Publication date: August 30, 2018
    Applicant: LIXIL Corporation
    Inventors: Reo SEIKE, Kouji FUKUYA, Kazuya YASHIMA, Takamasa INA, Yousuke BAN
  • Patent number: 8677519
    Abstract: A drainage connector communicates between a drain outlet of a toilet drainage path connected to a toilet bowl and a connecting port of a drain conduit led into a room equipped with a toilet body. The drainage connector includes a casing formed with a flow inlet connected to the drain outlet and a flow outlet connected to the port, and piping disposed in the casing. The piping has an upstream piping having an upstream opening communicating with the flow inlet and forming a downward flow path when the drain outlet communicates with the port and a downstream piping connected to the upstream piping and having a downstream opening open to the casing in a lateral direction along an inner surface of the casing so that flush water flows out in the lateral direction. The downstream piping forms an upward flow path when the drain outlet communicates with the port.
    Type: Grant
    Filed: January 28, 2009
    Date of Patent: March 25, 2014
    Assignee: Lixil Corporation
    Inventors: Takamasa Ina, Yasuhiro Kondo, Keisuke Hirai, Ken Hirabayashi, Ken Higuchi, Masafumi Fukagawa
  • Publication number: 20120284911
    Abstract: Disclosed is a flush toilet drainage channel capable of good flushing. The flush toilet drainage channel includes an ascending channel (30) which communicates with the downstream side of a toilet bowl (10) and ascends toward the downstream side. The ascending channel (30) is formed so that a channel bottom (33) is gradually rendered wider toward a bottom top (32) thereof located at the downstream side.
    Type: Application
    Filed: January 28, 2011
    Publication date: November 15, 2012
    Applicant: LIXIL CORPORATION
    Inventors: Akinori Kamiya, Teruhiro Yamada, Gousuke Sakakibara, Takamasa Ina
  • Publication number: 20100313344
    Abstract: Disclosed is a drainage connector which can realize a flushing toilet of excellent usability. The drainage connector (10) establishes communication between a drain outlet (6B) of a toilet drainage path (L) leading to the downstream side of a toilet bowl (2) formed in a toilet body (1) and a connecting port (31) of a drain conduit (30) led into the room to be equipped with the toilet body (1). The drainage connector (10) is equipped with a casing (11) having a flow inlet (12) connected to the drain outlet (6B) and a flow outlet (18) connected to the connecting port (31), and an internal piping (20) arranged in the casing (11). The internal piping (20) is constituted of an upstream piping (22) having an upstream opening (21) communicating with the flow inlet (12), for forming a downward flow path, and a downstream piping (23) connected to the upstream piping (22) and having a downstream opening (24) opened into the casing (11), for forming an upward flow path.
    Type: Application
    Filed: January 28, 2009
    Publication date: December 16, 2010
    Applicant: INAX CORPORATION
    Inventors: Takamasa Ina, Yasuhiro Kondo, Keisuke Hirai, Ken Hirabayashi, Ken Higuchi, Masafumi Fukagawa