Patents by Inventor YU-TING HU

YU-TING HU 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: 20250189722
    Abstract: A waveguide element includes a substrate and a grating structure. The grating structure is located on the substrate to form a light in-coupling area, a light out-coupling area and a light pupil expanding area, in which the light pupil expanding area optically couples the light in-coupling area and the light out-coupling area. The light pupil expanding area has at least two partitions, and an included angle ? is between a border of the partitions of the light pupil expanding area and a horizontal line. The included angle ? satisfies ? = tan - 1 ( ? 1 ? 1 ) , in which ?1=(?? sin ?+?d)/nd, ?1=(? cos ?+?d)/nd, ?=sin(?)×cos ?, ?=sin(?)×sin ?, ? is a wavelength of an incident light, ? is a field of view, n is a refractive index of the substrate, ? is a grating vector direction of the light in-coupling area, and d is a grating periodic distance of the light in-coupling area.
    Type: Application
    Filed: November 18, 2024
    Publication date: June 12, 2025
    Inventors: Yu-Ting HU, Ming-Jui Wang, Chih-Chiang Chen, Chia-Hsin Chung, Cheng-Chan Wang, Hsin-Chang Lin
  • Publication number: 20190388810
    Abstract: An explosion-proof filter cartridge, that includes: a filter bottle, a filter nozzle, a filter cartridge, and a plurality of elastic balloons. The filter nozzle is disposed on an upper end of the filter bottle, the filter cartridge is disposed in the filter bottle. The plurality of elastic balloons are disposed on an inner wall of the filter bottle. The distance between the two elastic balloons is less than a diameter of the elastic balloon. The plurality of elastic balloons are disposed and distributed evenly on the inner wall of the filter bottle, to prevent explosion of the filter bottle when water in the filter bottle is frozen to ice.
    Type: Application
    Filed: June 20, 2019
    Publication date: December 26, 2019
    Inventors: QING-HUA LIU, YU-TING HU
  • Publication number: 20180353880
    Abstract: a pre-filter device capable of preventing water leakage, that includes: a connector, a water inlet channel, a plug, and a spring. The connector is connected to a water inlet tube, and is connected to the pre-filter device. The water inlet channel is disposed in the connector, and is connected to the pre-filter device. The plug is disposed in the water inlet channel, to open or close the water inlet channel. The spring is disposed between one end of the plug and the connector, the other end of the plug is connected to and acts in cooperation with the pre-filter device. When a pre-filter device capable of preventing water leakage is burst to leak out water, it is able to close the water inlet channel automatically, to avoid the problem deteriorating into flooding the entire household, to achieve timely self protection.
    Type: Application
    Filed: May 30, 2018
    Publication date: December 13, 2018
    Inventors: JING-XIAN LIU, YU-TING HU