LexDanaLexDanabeta
Inventor

Liang-Ta Yeh

Inventor
Shulin City, TW

Overview

15→
Patents
2005–2020
Patent span
Electricity
Primary field (CPC H)

Patents· 15 as inventor

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

H01Hprimary
H01HElectric switches88%
G02BOptical elements, systems or apparatus12%
PatentTitleYear
10,804,049Keyswitch structure202010,332,695Key switch with noise reduction mechanism201910,049,828Key switch with noise reduction mechanism20189,837,221Key switch with noise reduction mechanism20179,312,079'Keyswitch and keyboard therewith'20168,231,236'Input apparatus and light guiding plate thereof'20128,110,764'Key structure'20128,080,753'Input apparatus and keyswitch'20118,080,744'Keyboard and keyswitch'20117,973,254'Key structure'20117,902,473'Key switch with exhaust structure'20117,728,243'Keyboard with wobble prevention structure'20107,696,446'Key structure'20107,589,293'Membrane switch circuit and keyswitch using such membrane switch circuit'20096,860,612'Illuminated keyboard switch structure'2005

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2005–2020Patents assigned to DARFON ELECTRONICS CORP (13)· patent assignee history
2005–2012Based in Shulin City, TW· patent location history
2009–2011Based in Taipei, TW· patent location history
2011–2012Patents assigned to YEH LIANG-TA (4)· patent assignee history
2011–2012Patents assigned to YEN CHIH-CHUNG (3)· patent assignee history
2012Patents assigned to CHIANG CHIH-HSIANG (1)· patent assignee history
2012Patents assigned to DAFRON ELECTRONICS CORP (1)· patent assignee history
2016–2020Based in Taoyuan, TW· patent location history
2017–2018Based in New Taipei, TW· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
DARFON ELECTRONICS CORP132005–2020
YEH LIANG-TAself42011–2012
YEN CHIH-CHUNG32011–2012
CHIANG CHIH-HSIANG12012
DAFRON ELECTRONICS CORP12012
Locations
LocationPatentsSpan
Shulin City, TW62005–2012
Taipei, TW42009–2011
Taoyuan, TW32016–2020
New Taipei, TW22017–2018