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MA HSI KUANG

Overview
  • Total Patents
    17
About

MA HSI KUANG has a total of 17 patent applications. Its first patent ever was published in 1990. It filed its patents most often in United States, EPO (European Patent Office) and United Kingdom. Its main competitors in its focus markets computer technology, audio-visual technology and machines are DYNABOOK TECHNOLOGIES CORP, SUZHOU ATG DIGITAL TECH CO LTD and CHENGDU XIANGMEI NETWORK TECH CO LTD.

Patent filings per year

Chart showing MA HSI KUANGs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Ma Hsi-Kuang 11
#2 Ma Hsi Kuang 6
#3 Cheng Yung-Fa 1
#4 Chi Kuo Chiang 1

Latest patents

Publication Filing date Title
WO2006010322A1 Sound field convertible type earphone set
US7035421B2 Earphone set
EP0869668A1 Instant CCD camera
EP0858020A1 Expansion box for notebook computer
EP0813135A1 Combination of computer mainframe housing, sound producing unit, and mainframe unit
EP0811902A1 LCD assembly with projection function
US5327322A Built-up pen base computer
US5325262A Pen base computer with detachable peripheral equipment boxes
US5255214A Portable computer with a level and angular position adjustable LCD assembly
US5260852A Slide box type hard disk drive with system connecting and disconnecting switch on a circuit board
US5224060A Mobile computer with pen base/keyboard input modes
US5260885A Solar power operated computer
US5193051A Sliding box type pen base computer with LCD and mother board in a base and with battery, power supply, and disk drives in a sliding box
GB9116636D0 Notebook computer
GB9116628D0 Portable personal computer
GB9110452D0 Portable expansion device for note-book computer
EP0445343A1 Portable computer with receiving slots for changeable batteries and expansion cards