Inventor

Ming-Hai Chang

Inventor
Taoyuan County, TW

Overview

4→
Patents
2014–2021
Patent span
Physics
Primary field (CPC G)

Patents· 4 as inventor

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

G01Jprimary
G01JMeasurement of intensity, velocity, spectral content, polarisation, phase or pulse characteristics of infrared, visible or ultraviolet light20%
G02FOptical devices or arrangements for the control of light by modification of the optical properties of the media of the elements involved therein20%
Y10TTechnical subjects covered by former us classification20%
G02BOptical elements, systems or apparatus10%
G09GArrangements or circuits for control of indicating devices using static means to present variable information10%
H03MCoding10%
H04NPictorial communication, e.g. television10%

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2014–2016Patents assigned to DELTA ELECTRONICS INC (3)· patent assignee history
2014–2015Patents assigned to CHANG MING-HAI (2)· patent assignee history
2014Patents assigned to CHANG KEH-SU (1)· patent assignee history
2014–2016Based in Taoyuan County, TW· patent location history
2015Patents assigned to CHANG JEN-MING (1)· patent assignee history
2021Patents assigned to ANPEC ELECTRONICS CORP (1)· patent assignee history
2021Based in Hsinchu County, TW· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
DELTA ELECTRONICS INC32014–2016
CHANG MING-HAIself22014–2015
ANPEC ELECTRONICS CORP12021
CHANG JEN-MING12015
CHANG KEH-SU12014
Locations
LocationPatentsSpan
Taoyuan County, TW32014–2016
Hsinchu County, TW12021