Patents by Inventor Cho Woo

Cho Woo 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: 20230137316
    Abstract: A hair styling device (1) comprises a hinge jaw assembly (10) including a first jaw (11) having a first plate (12) and a second jaw (13) having a second plate (14). In an opened position of the jaw assembly (10), hair can be received between the plates (12, 14), and in a closed position of the jaw assembly (10), hair can be hair styled between the plates (12, 14). The hair styling device (1) further comprises a heater arrangement (20) configured to heat at least one of the plates (12, 14), and a hair wetness control mechanism (30) configured to supply a mist of liquid between the plates (12, 14) in the closed position of the jaw assembly (10), wherein the hair wetness control mechanism (30) includes a two-fluid nozzle (31), and an air pump (33) and a liquid tank (35) connected to respective inlets of the two-fluid nozzle (31).
    Type: Application
    Filed: March 30, 2021
    Publication date: May 4, 2023
    Inventors: Man Chung LAW, Cho WOO
  • Patent number: 11464312
    Abstract: A hair care device comprises a body having an output to supply heated air, and at least two different attachments that can be attached to the output of the body. In accordance with the invention, the body comprises a detector for detecting whether one of the attachments is attached to the body, and if so, which attachment is attached to the body, to provide a detection result, and a controller for controlling the supply of heated air in dependence on the detection result. According to the invention, each attachment has at least one magnet at predefined positions at an attachment contact area of the attachment for contacting the body, the at least two attachments having mutually different magnet configurations, and the detector comprises a plurality of Hall effect sensors at predefined positions (?) at a body contact area for contacting a selected one of the attachments.
    Type: Grant
    Filed: June 8, 2018
    Date of Patent: October 11, 2022
    Assignee: KONINKLIJKE PHILIPS N.V.
    Inventors: Chuen Yu Cyrus Pang, Cho Woo, Wing-Hei Cho
  • Publication number: 20200178667
    Abstract: A hair care device comprises a body having an output to supply heated air, and at least two different attachments that can be attached to the output of the body. In accordance with the invention, the body comprises a detector for detecting whether one of the attachments is attached to the body, and if so, which attachment is attached to the body, to provide a detection result, and a controller for controlling the supply of heated air in dependence on the detection result. According to the invention, each attachment has at least one magnet at predefined positions at an attachment contact area of the attachment for contacting the body, the at least two attachments having mutually different magnet configurations, and the detector comprises a plurality of Hall effect sensors at predefined positions (?) at a body contact area for contacting a selected one of the attachments.
    Type: Application
    Filed: June 8, 2018
    Publication date: June 11, 2020
    Inventors: Chuen Yu Cyrus PANG, Cho WOO, Wing-Hei CHO
  • Patent number: 10383422
    Abstract: An air outlet grill for use on a hair care device comprises a plurality of concentric and tilted flow guide surfaces (2), a cross section of the flow guide surfaces (2) having a curved shape that diverges in an air flow direction. Preferably, tilt angles between the flow guide surfaces (2) are designed such that an air inlet area of the air outlet grill is larger than an air outlet area of the air outlet grill, so as to increase air speed. Preferably, a middle flow guide surface has a smaller height compared to at least one other flow guide surface, so as to increase an area for air to pass through at a middle part of the air outlet grill. Preferably, a leading edge of at least one of the flow guide surfaces (2) is tangent to the air flow direction while a trailing edge of the flow guide surfaces diverges from the air flow direction.
    Type: Grant
    Filed: July 12, 2016
    Date of Patent: August 20, 2019
    Assignee: KONINKLIJKE PHILIPS N.V.
    Inventors: Chak Yuen Law, Cho Woo
  • Publication number: 20180206610
    Abstract: An air outlet grill for use on a hair care device comprises a plurality of concentric and tilted flow guide surfaces (2), a cross section of the flow guide surfaces (2) having a curved shape that diverges in an air flow direction. Preferably, tilt angles between the flow guide surfaces (2) are designed such that an air inlet area of the air outlet grill is larger than an air outlet area of the air outlet grill, so as to increase air speed. Preferably, a middle flow guide surface has a smaller height compared to at least one other flow guide surface, so as to increase an area for air to pass through at a middle part of the air outlet grill. Preferably, a leading edge of at least one of the flow guide surfaces (2) is tangent to the air flow direction while a trailing edge of the flow guide surfaces diverges from the air flow direction.
    Type: Application
    Filed: July 12, 2016
    Publication date: July 26, 2018
    Applicant: KONINKLIJKE PHILIPS N.V.
    Inventors: CHAK YUEN LAW, CHO WOO
  • Publication number: 20040022637
    Abstract: An adjustable fan assembly has a fan mount with an arcuate portion and a support member. The support member is moveable along the length of the arcuate portion of the fan mount to position the air flow from a fan mounted on the fan mount. The support member may also retract for compact storage.
    Type: Application
    Filed: August 1, 2002
    Publication date: February 5, 2004
    Inventors: Siu Fei, Cho Woo, Walter G. Birdsell
  • Patent number: 6682308
    Abstract: An adjustable fan assembly has a fan mount with an arcuate portion and a support member. The support member is moveable along the length of the arcuate portion of the fan mount to position the air flow from a fan mounted on the fan mount. The support member may also retract for compact storage.
    Type: Grant
    Filed: August 1, 2002
    Date of Patent: January 27, 2004
    Assignee: Kaz, Inc.
    Inventors: Siu Fei, Cho Woo, Walter G. Birdsell