Inventor

Keh-Su Chang

Inventor

Taoyuan, TW

Overview

33→

Patents

2013–2020

Patent span

Physics

Primary field (CPC G)

Patents· 33 as inventor

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

G03Bprimary

G03BApparatus or arrangements for taking photographs or for projecting or viewing them20%

G02BOptical elements, systems or apparatus17%

H04NPictorial communication, e.g. television14%

F21VFunctional features or details of lighting devices or systems thereof10%

B32BLayered products, i.e. products built-up of strata of flat or non-flat, e.g. cellular or honeycomb, form6%

B05DProcesses for applying fluent materials to surfaces, in general5%

G02FOptical devices or arrangements for the control of light by modification of the optical properties of the media of the elements involved therein5%

A61BDiagnosis3%

E06BFixed or movable closures for openings in buildings, vehicles, fences or like enclosures in general, e.g. doors, windows, blinds, gates3%

F21KNon-electric light sources using luminescence3%

PatentTitleYear

10,758,937Phosphor device comprising plural phosphor agents for converting waveband light into plural color lights2020 10,688,527Phosphor device comprising plural phosphor agents for converting waveband light into plural color lights with different wavelength peaks2020 10,367,330Diffuser, laser-light-source module using the same, and method for manufacturing the same2019 10,319,340Real-time color mapping system and method2019 10,309,617Phosphor wheel2019 10,310,363Phosphor device with spectrum of converted light comprising at least a color light2019 10,288,992Laser light source for projector and laser projection device2019 10,281,810Projection apparatus comprising phosphor wheel coated with phosphor agents for converting waveband light2019 10,281,638Wavelength converting module and light-source module applying the same2019 10,156,729Optical wavelength converter and illumination system with same2018 10,120,272Fluorescent color wheel and projector2018 9,976,879Color wheel rotation speed detecting module2018 9,891,511'Illumination system and wavelength-converting device thereof'2018 9,753,277'Wavelength conversion device'2017 9,753,276'Wavelength-converting device and illumination system using same'2017 9,726,335'Phosphor device and manufacturing method thereof having a second phosphor agent to increase the luminous intensity of a converted color light'2017 9,696,013'Illumination system multi-layered wavelength-converting device'2017 9,432,640'Illumination module'2016 9,410,370'Electric curtain'2016 9,360,678'Light modulating module and image display'2016 9,322,213'Display with an adjustable focus mechanism'2016 9,291,884'Method of regulating light wavelength for projection device'2016 9,274,407'Phosphor device and illumination system and projection apparatus with the same'2016 9,207,525'Phosphor wheel and white light illumination device utilizing the same'2015 9,164,367'Visible and infrared light source for illumination system and projection device comprising the same'2015 9,024,241'Phosphor device and illumination system for converting a first waveband light into a third waveband light which is separated into at least two color lights and projection apparatus with the same'2015 9,006,642'Focus adjustable apparatus'2015 8,952,996'Image display system'2015 8,773,744'Light modulating cell, device and system'2014 8,733,942'Illumination system and projector using the same'2014 8,714,751'Visible and infrared light source for illumination system and projection device comprising the same'2014 8,632,197'Illumination system and wavelength-transforming device thereof'2014 8,608,329'Phosphor plate and illumination system with the same'2013

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2013–2020Patents assigned to DELTA ELECTRONICS INC (33)· patent assignee history

2013–2015Patents assigned to CHANG KEH-SU (7)· patent assignee history

2013–2014Patents assigned to SUN FU-KUO (2)· patent assignee history

2013–2019Based in Taoyuan County, TW· patent location history

2014–2015Patents assigned to LIANG RONG-CHANG (3)· patent assignee history

2014–2015Patents assigned to TSAI MING-WEI (3)· patent assignee history

2016–2020Based in Taoyuan, TW· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
DELTA ELECTRONICS INC	33	2013–2020
CHANG KEH-SUself	7	2013–2015
LIANG RONG-CHANG	3	2014–2015
TSAI MING-WEI	3	2014–2015
SUN FU-KUO	2	2013–2014

Locations

Location	Patents	Span
Taoyuan, TW	17	2016–2020
Taoyuan County, TW	16	2013–2019