Patents by Inventor Tsuyoshi Waku

Tsuyoshi Waku 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).

  • Valve and fluid control apparatus
    Patent number: 11486388
    Abstract: A fluid control apparatus includes a piezoelectric pump and valve. The valve includes a second valve housing, second seal member, diaphragm, first seal member, and first valve housing and has a structure in which they are laminated in sequence. The first valve housing includes a second vent and third vent, has a valve seat, and includes six cavities. The second valve housing has a first vent and first vent and includes a valve seat and six first protrusions. The second valve housing further includes six second protrusions nearer the outer edges than the six first protrusions, as seen in the x-axis direction in plan view.
    Type: Grant
    Filed: December 29, 2020
    Date of Patent: November 1, 2022
    Assignee: MURATA MANUFACTURING CO., LTD.
    Inventors: Kenichiro Kawamura, Tsuyoshi Waku, Yukinori Sakuraya
  • VALVE AND FLUID CONTROL APPARATUS
    Publication number: 20210115916
    Abstract: A fluid control apparatus includes a piezoelectric pump and valve. The valve includes a second valve housing, second seal member, diaphragm, first seal member, and first valve housing and has a structure in which they are laminated in sequence. The first valve housing includes a second vent and third vent, has a valve seat, and includes six cavities. The second valve housing has a first vent and first vent and includes a valve seat and six first protrusions. The second valve housing further includes six second protrusions nearer the outer edges than the six first protrusions, as seen in the x-axis direction in plan view.
    Type: Application
    Filed: December 29, 2020
    Publication date: April 22, 2021
    Inventors: Kenichiro Kawamura, Tsuyoshi Waku, Yukinori Sakuraya
  • Valve and fluid control apparatus
    Patent number: 10883494
    Abstract: A fluid control apparatus includes a piezoelectric pump and valve. The valve includes a second valve housing, second seal member, diaphragm, first seal member, and first valve housing and has a structure in which they are laminated in sequence. The first valve housing includes a second vent and third vent, has a valve seat, and includes six cavities. The second valve housing has a first vent and first vent and includes a valve seat and six first protrusions. The second valve housing further includes six second protrusions nearer the outer edges than the six first protrusions, as seen in the x-axis direction in plan view.
    Type: Grant
    Filed: December 18, 2017
    Date of Patent: January 5, 2021
    Assignee: Murata Manufacturing Co., Ltd.
    Inventors: Kenichiro Kawamura, Tsuyoshi Waku, Yukinori Sakuraya
  • VALVE AND FLUID CONTROL APPARATUS
    Publication number: 20180128267
    Abstract: A fluid control apparatus includes a piezoelectric pump and valve. The valve includes a second valve housing, second seal member, diaphragm, first seal member, and first valve housing and has a structure in which they are laminated in sequence. The first valve housing includes a second vent and third vent, has a valve seat, and includes six cavities. The second valve housing has a first vent and first vent and includes a valve seat and six first protrusions. The second valve housing further includes six second protrusions nearer the outer edges than the six first protrusions, as seen in the x-axis direction in plan view.
    Type: Application
    Filed: December 18, 2017
    Publication date: May 10, 2018
    Inventors: Kenichiro Kawamura, Tsuyoshi Waku, Yukinori Sakuraya
  • Valve and fluid control apparatus
    Patent number: 9879669
    Abstract: A fluid control apparatus includes a piezoelectric pump and valve. The valve includes a second valve housing, second seal member, diaphragm, first seal member, and first valve housing and has a structure in which they are laminated in sequence. The first valve housing includes a second vent and third vent, has a valve seat, and includes six cavities. The second valve housing has a first vent and first vent and includes a valve seat and six first protrusions. The second valve housing further includes six second protrusions nearer the outer edges than the six first protrusions, as seen in the x-axis direction in plan view.
    Type: Grant
    Filed: November 23, 2015
    Date of Patent: January 30, 2018
    Assignee: MURATA MANUFACTURING CO., LTD.
    Inventors: Kenichiro Kawamura, Tsuyoshi Waku, Yukinori Sakuraya
  • VALVE AND FLUID CONTROL APPARATUS
    Publication number: 20160076537
    Abstract: A fluid control apparatus includes a piezoelectric pump and valve. The valve includes a second valve housing, second seal member, diaphragm, first seal member, and first valve housing and has a structure in which they are laminated in sequence. The first valve housing includes a second vent and third vent, has a valve seat, and includes six cavities. The second valve housing has a first vent and first vent and includes a valve seat and six first protrusions. The second valve housing further includes six second protrusions nearer the outer edges than the six first protrusions, as seen in the x-axis direction in plan view.
    Type: Application
    Filed: November 23, 2015
    Publication date: March 17, 2016
    Inventors: Kenichiro Kawamura, Tsuyoshi Waku, Yukinori Sakuraya