Inventor

Dong-Feng Cai

Inventor
Dalian City, Liaoning Province, CN

Overview

3→
Patents
2005–2021
Patent span
Physics
Primary field (CPC G)

Patents· 3 as inventor

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

G06Fprimary
G06FElectric digital data processing40%
G02FOptical devices or arrangements for the control of light by modification of the optical properties of the media of the elements involved therein20%
G09FDisplaying20%
G10LSpeech analysis techniques or speech synthesis20%

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2005–2007Patents assigned to MICROSOFT CORP (2)· patent assignee history
2005–2007Based in Dalian City, Liaoning Province, CN· patent location history
2021Patents assigned to ROE VISUAL CO LTD (1)· patent assignee history
2021Based in Shenzhen, CN· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
MICROSOFT CORP22005–2007
ROE VISUAL CO LTD12021
Locations
LocationPatentsSpan
Dalian City, Liaoning Province, CN22005–2007
Shenzhen, CN12021