Inventor

CHIH-YAO CHANG

Inventor

Overview

8→

Patents

2022–2026

Patent span

Physics

Primary field (CPC G)

Patents· 8 as inventor

Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.

G02Bprimary

G02BOptical elements, systems or apparatus31%

F16MFrames, casings or beds of engines, machines or apparatus, not specific to engines, machines or apparatus provided for elsewhere13%

G06FElectric digital data processing13%

F21VFunctional features or details of lighting devices or systems thereof6%

G02FOptical devices or arrangements for the control of light by modification of the optical properties of the media of the elements involved therein6%

G06NComputing arrangements based on specific computational models6%

G06QInformation and communication technology [ict] specially adapted for administrative, commercial, financial, managerial or supervisory purposes6%

H02HEmergency protective circuit arrangements6%

H03KPulse technique6%

H04BTransmission6%

PatentTitleYear

12,574,023Combo circuit with electrostatic discharge protection2026 12,455,459Head-mounted device and headband2025 12,413,316Calibration method and calibration system for radio frequency transceiver2025 12,038,986Recommendation model training method, recommendation method, apparatus, and computer-readable medium2024 12,025,295Wearable device and head strap module2024 11,927,303Wearable device2024 11,754,779Electronic devices with coherent fiber bundles2023 11,500,228Electronic devices with sheet-packed coherent fiber bundles2022

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2022–2023Patents assigned to APPLE INC (2)· patent assignee history

2022–2026Based in TW· patent location history

2024–2025Patents assigned to HTC CORP (3)· patent assignee history

2024Patents assigned to HUAWEI TECH CO LTD (1)· patent assignee history

2024Based in CN· patent location history

2025Patents assigned to WISTRON NEWEB CORP (1)· patent assignee history

2026Patents assigned to LEADTREND TECH CORP (1)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
HTC CORP	3	2024–2025
APPLE INC	2	2022–2023
HUAWEI TECH CO LTD	1	2024
LEADTREND TECH CORP	1	2026
WISTRON NEWEB CORP	1	2025

Locations

Location	Patents	Span
TW	7	2022–2026
CN	1	2024