Patents by Inventor Kam Hing YAU

Kam Hing YAU 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: 11858153
    Abstract: A spacing comb for a hair cutting appliance. The comb includes a support frame, a series of comb teeth each having a frontal portion and a rear portion, wherein the comb teeth extend from the support frame. The support frame includes a frontal connector bar and a rear connector plate, wherein the frontal portions of the comb teeth extend from the frontal connector bar. The frontal connector bar is inwardly curved towards the rear connector plate, such that a central portion of the frontal connector bar is rearwardly offset from lateral portions thereof. Also described herein is a hair cutting appliance that is equipped with such a spacing comb.
    Type: Grant
    Filed: February 3, 2022
    Date of Patent: January 2, 2024
    Assignee: KONINKLIJKE PHILIPS N.V.
    Inventors: Luca Iaccarino, Theunis Quaak, Kam Hing Yau, Rob Roetert, Alwin William De Vries
  • Patent number: 11732883
    Abstract: A hand held personal care device (1) with an operative unit (3) connected to a main housing (2), a light source (24), and an optically transparent light guide (23) having a light receiving surface (27), a light emitting surface (6) and a light guiding member (31) extending from the light receiving surface to the light emitting surface for guiding light from the light receiving surface to the light emitting surface. The light source is arranged in a watertight chamber (51) of the main housing. The main housing includes an optically transparent wall portion (52) arranged adjacent to the light source and bounding the watertight chamber. The light guide is arranged outside the watertight chamber and the light receiving surface is arranged adjacent to the optically transparent wall portion in a position for receiving light from the light source via the optically transparent wall portion.
    Type: Grant
    Filed: August 13, 2020
    Date of Patent: August 22, 2023
    Assignee: KONINKLIJKE PHILIPS N.V.
    Inventors: Marinus Arnoldus Martinus Vugts, Kam Hing Yau, Pascal Jean Henri Bloemen, Marc Alexander Pastoors, Daniele Solerio, Marcus Franciscus Eijkelkamp, Sint Baron, Hendrik Klaas Paauw
  • Publication number: 20220307681
    Abstract: A hand held personal care device (1) with an operative unit (3) connected to a main housing (2), a light source (24), and an optically transparent light guide (23) having a light receiving surface (27), a light emitting surface (6) and a light guiding member (31) extending from the light receiving surface to the light emitting surface for guiding light from the light receiving surface to the light emitting surface. The light source is arranged in a watertight chamber (51) of the main housing. The main housing includes an optically transparent wall portion (52) arranged adjacent to the light source and bounding the watertight chamber. The light guide is arranged outside the watertight chamber and the light receiving surface is arranged adjacent to the optically transparent wall portion in a position for receiving light from the light source via the optically transparent wall portion.
    Type: Application
    Filed: August 13, 2020
    Publication date: September 29, 2022
    Inventors: Marinus Arnoldus Martinus VUGTS, Kam Hing YAU, Pascal Jean Henri BLOEMEN, Marc Alexander PASTOORS, Daniele SOLERIO, Marcus Franciscus EIJKELKAMP, Sint BARON, Hendrik Klaas PAAUW
  • Publication number: 20220152851
    Abstract: A spacing comb for a hair cutting appliance. The comb includes a support frame, a series of comb teeth each having a frontal portion and a rear portion, wherein the comb teeth extend from the support frame. The support frame includes a frontal connector bar and a rear connector plate, wherein the frontal portions of the comb teeth extend from the frontal connector bar. The frontal connector bar is inwardly curved towards the rear connector plate, such that a central portion of the frontal connector bar is rearwardly offset from lateral portions thereof. Also described herein is a hair cutting appliance that is equipped with such a spacing comb.
    Type: Application
    Filed: February 3, 2022
    Publication date: May 19, 2022
    Inventors: Luca IACCARINO, Theunis QUAAK, Kam Hing YAU, Rob ROETERT, Alwin William DE VRIES
  • Patent number: 11312032
    Abstract: The present disclosure relates to spacing comb (70) for a hair cutting appliance (10), the comb (70) comprising a support frame (72), a series of comb teeth (76) each having a frontal portion (78) and a rear portion (80), wherein the comb teeth (76) extend from the support frame (72), wherein the support frame (72) comprises a frontal connector bar (100) and a rear connector plate (102), wherein the frontal portions (78) of the comb teeth (76) extend from the frontal connector bar (100), and wherein the frontal connector bar (100) is inwardly curved towards the rear connector plate (102), such that a central portion (110) of the frontal connector bar (100) is rearwardly offset from lateral portions (112, 114) thereof. The present disclosure further relates to a hair cutting appliance (10) that is equipped with a spacing comb (70).
    Type: Grant
    Filed: May 14, 2018
    Date of Patent: April 26, 2022
    Assignee: KONINKLIJKE PHILIPS N.V.
    Inventors: Luca Iaccarino, Theunis Quaak, Kam Hing Yau, Rob Roetert, Alwin William De Vries
  • Patent number: 10916898
    Abstract: A safety switch arrangement for a power connector of a personal care appliance includes a housing with a power connector having a connector receptacle, an operating switch, and an actuator. The actuator is mounted to the housing and is moveable between first and second states. In the first state, the actuator enables operation of the personal care appliance and prevents contact with the connector receptacle, and in the second state, the actuator prevents operation of the personal care appliance and enables contact with the connector receptacle.
    Type: Grant
    Filed: March 22, 2017
    Date of Patent: February 9, 2021
    Assignee: KONINKLIJKE PHILIPS N.V.
    Inventors: Kam Hing Yau, Marcel Hilco Zijlstra, Venkata Srinivas Kalyan Nemana, Frans Wiebe Rozeboom
  • Publication number: 20200313368
    Abstract: The present disclosure relates to a safety switch arrangement (50) for a power connector of a personal care appliance (30), the arrangement (50) comprising a housing portion (52), a power connector unit (72) comprising a connector receptacle (74), an operating switch (56), and an actuation portion (54), wherein the actuation portion (54) is mounted to the housing portion (52) and arranged to be moved between a first state and a second state, wherein the power connector unit (72) is arranged at the housing portion (52), wherein the actuation portion (54), in the first state, enables an operation of the personal care appliance (30) and prevents a contact with the connector receptacle (74), and wherein the actuation portion (54), in the second state, prevents an operation of the personal care appliance (30) and enables a contact with the connector receptacle (74).
    Type: Application
    Filed: March 22, 2017
    Publication date: October 1, 2020
    Inventors: KAM HING YAU, MARCEL HILCO ZIJLSTRA, VENKATA SRINIVAS KALYAN NEMANA, FRANS WIEBE ROZEBOOM
  • Publication number: 20200094425
    Abstract: The present disclosure relates to spacing comb (70) for a hair cutting appliance (10), the comb (70) comprising a support frame (72), a series of comb teeth (76) each having a frontal portion (78) and a rear portion (80), wherein the comb teeth (76) extend from the support frame (72), wherein the support frame (72) comprises a frontal connector bar (100) and a rear connector plate (102), wherein the frontal portions (78) of the comb teeth (76) extend from the frontal connector bar (100), and wherein the frontal connector bar (100) is inwardly curved towards the rear connector plate (102), such that a central portion (110) of the frontal connector bar (100) is rearwardly offset from lateral portions (112, 114) thereof. The present disclosure further relates to a hair cutting appliance (10) that is equipped with a spacing comb (70).
    Type: Application
    Filed: May 14, 2018
    Publication date: March 26, 2020
    Inventors: Luca IACCARINO, Theunis QUAAK, Kam Hing YAU, Rob ROETERT, Alwain William DE VRIES