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Inventor

Duen-Kwei Hwang

Inventor
Taichung, TW

Overview

5→
Patents
2010–2016
Patent span
Physics
Primary field (CPC G)

Patents· 5 as inventor

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

G02Bprimary
G02BOptical elements, systems or apparatus50%
G03BApparatus or arrangements for taking photographs or for projecting or viewing them38%
H04NPictorial communication, e.g. television13%
PatentTitleYear
9,523,837'Lens module'20169,417,427'Zoom lens'20169,128,239'Optical device'20158,717,482'Lens assembly with an image sensor backoff mechanism'20147,652,719'Electric dust-proof device'2010

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2010–2014Patents assigned to ASIA OPTICAL CO INC (2)· patent assignee history
2010–2014Based in Changhua County, TW· patent location history
2014Patents assigned to CHEN KAI-KUN (1)· patent assignee history
2014Patents assigned to HWANG DUEN-KWEI (1)· patent assignee history
2015–2016Patents assigned to ASIA OPTICAL INT LTD (3)· patent assignee history
2015–2016Patents assigned to SINTAI OPTICAL SHENZHEN CO LTD (3)· patent assignee history
2015–2016Based in Taichung, TW· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
ASIA OPTICAL INT LTD32015–2016
SINTAI OPTICAL SHENZHEN CO LTD32015–2016
ASIA OPTICAL CO INC22010–2014
CHEN KAI-KUN12014
HWANG DUEN-KWEIself12014
Locations
LocationPatentsSpan
Taichung, TW32015–2016
Changhua County, TW22010–2014