Qisda Corporation

Taiwan, Province of China

 
Total IP 421
Total IP incl. subs 440 (+ 32 for subs)
Total IP Rank # 3,030
IP Activity Score 3.3/5.0    400
IP Activity Rank # 1,782
IP AS incl. subs 3/5.0    414
Stock Symbol 2352 (twse)
ISIN TW0002352002
Market Cap. 70.5B  (TWD)
Industry Computer Systems
Sector Technology
Dominant Nice Class Scientific and electric apparatu...

Patents

Trademarks

418 1
0 1
0 0
1
 
Last Patent 2025 - Unmanned aerial vehicle
First Patent 1989 - Method for determining phantom s...
Last Trademark 2013 - QISDESIGN
First Trademark 2007 - QISDA

Subsidiaries

2 subsidiaries with IP (24 patents, 8 trademarks)

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Industry (Nice Classification)

Latest Inventions, Goods, Services

2024 Invention Unmanned vehicle. An unmanned vehicle includes a body and a plurality of battery packs. The batt...
Invention Afocal optical element and projection device. An afocal optical element adapted to reduce a beam...
Invention Illumination system and projection device. Disclosed is an illumination system configured to pro...
Invention Optical machine module and projector device. An optical machine module includes an optical machi...
Invention Unmanned aerial vehicle. An unmanned aerial vehicle includes a body, a shaft base, an arm, and a...
Invention Non-contact voltage measuring method and system thereof. A non-contact voltage measuring method ...
Invention Projection device, control circuit and control method thereof. A projection device, a control ci...
Invention Three-dimensional image generation method and three-dimensional image generation system capable o...
Invention Alignment module. An alignment module includes a light source module, a collimator lens, a wavel...
Invention Lamp device and operating method thereof. A lamp device applicable to a display includes a lamp m...
Invention Unmanned vehicle system. Embodiments of the disclosure provide an unmanned vehicle system, inclu...
Invention Projection apparatus and projecting method. A projection apparatus configured to project an imag...
Invention Movable door structure. A movable door structure includes a bracket, a door panel, and an elasti...
Invention Vehicle auxiliary apparatus and vehicle auxiliary method. A vehicle auxiliary apparatus and a ve...
Invention Illumination module. An illumination module includes a light source, a reflective light valve, a ...
Invention Support frame. A support frame includes a movable element, a switch assembly, and at least one e...
Invention Laser projection apparatus. A laser projection apparatus includes a reflecting unit, a reflectin...
Invention Light source module. A light source module includes a casing, a first light source disposed in t...
Invention Display device. The invention provides a display device. The display device includes a display u...
Invention Vehicle-based monitoring system, vehicle-based monitoring method, and drone. A vehicle-based mon...
Invention Projection apparatus and overheating protection method thereof. A projection apparatus and an ov...
Invention Optical engine module. An optical engine module including a plastic housing, a first light sourc...
Invention Light source module. A light source module includes a laser light source, first and second dichr...
Invention Adjustment method of screen brightness. An adjustment method of screen brightness comprises the ...
Invention Electronic device. An electronic device includes a body and a heat dissipation module. The body ...
Invention External electric adjusting module and lens device. An external electric adjusting module adapte...
Invention Display system and operation method thereof. An operation method is provided for a display syste...
Invention Lamp for laptop. A lamp for a laptop includes a lamp arm, a base, and a lamp body. The lamp arm h...
2023 Invention Ultrasonic transducer, fabrication method thereof and ultrasonic probe applying the same. An ult...
Invention Air guide module. An air guide module includes a casing and a first flexible air guide structure...
Invention Display device. A display device including a first casing, a second casing, and a connection str...
Invention Lamp device. A lamp device includes a light-emitting element, a first clamping element, a second...
Invention Light source driving circuit and projection device using the same. The application discloses a p...
Invention Direct-lit backlight module for display device and display device. A direct-lit backlight module ...
Invention Light source module. A light source module includes a first light source, a second light source,...
Invention Projection device having light source array and color wheel. A projection device includes a plura...
Invention Multicolor laser source with light mixing module. A multicolor laser source includes a collimator...
Invention Transducer and ultrasonic probe having the same. The present disclosure provides a transducer fo...
Invention Switching device applied to a display and method of switching working modes. A switching device ...
Invention Power supply circuit, voltage drop compensation method and electronic product using the same. A ...
Invention Light source module. A light source module includes a first light source and a second light sour...
Invention Display device and signal source switching method thereof. A display device and a signal source ...
Invention Ultrasonic array and ultrasonic array manufacturing method. An ultrasonic array manufacturing me...
Invention Optical module. An optical module includes a base, a holding component, an optical element, and ...
Invention Illumination system and projection apparatus. An illumination system including a first light-emi...
Invention System and method of changeable lens self-adaptive control and compensation. A system and a meth...
Invention Color correction system and colorimeter positioning method thereof. A color correction system an...
Invention Automatically switching operation modes electronic device. An electronic device having a functio...
Invention Electronic apparatus. An electronic apparatus includes a main circuit board, a seat body, a detac...
2013 G/S Electric illumination devices, namely, recessed light fixtures, miniature cabinet recessed lights...
2007 G/S Monitors (computer hardware); display monitors; computer liquid crystal display monitors; overhea...
G/S (Based on 44e) Computer hardware, namely, computer monitors; computer liquid crystal display moni...