Inventor

Ying-Moh Liu

Inventor

Saratoga, CA, US

Overview

7→

Patents

1993–2021

Patent span

Physics

Primary field (CPC G)

Patents· 7 as inventor

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

G02Bprimary

G02BOptical elements, systems or apparatus30%

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

G01RMeasuring electric variables10%

G02FOptical devices or arrangements for the control of light by modification of the optical properties of the media of the elements involved therein10%

G09GArrangements or circuits for control of indicating devices using static means to present variable information10%

H02HEmergency protective circuit arrangements10%

H04NPictorial communication, e.g. television10%

PatentTitleYear

10,923,899Ground fault protection system2021 7,560,710'Method and apparatus for increasing illuminator brightness in a liquid crystal on silicon (LCoS) based video projection system'2009 7,390,094'Method and apparatus to achieve a neutral dark state in image projection systems'2008 6,978,065'Ruggedized optical fiber collimator'2005 6,934,066'Method and apparatus for use and construction of compensated higher order waveplates'2005 6,497,490'Laser beam attenuator and method of attenuating a laser beam'2002 5,212,374'Method and apparatus for positioning and biasing an electro-optic modulator of an electro-optic imaging system'1993

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1993Patents assigned to PHOTON DYNAMICS INC (1)· patent assignee history

1993–2009Based in Saratoga, CA, US· patent location history

2002Patents assigned to NUTECH OPTICAL SYSTEMS INC (1)· patent assignee history

2005–2009Patents assigned to LIGHTMASTER SYSTEMS INC (3)· patent assignee history

2005Patents assigned to OPTIWORKS INC (1)· patent assignee history

2021Patents assigned to SHANGHAI FUDAN MICROELECTRONICS GROUP CO LTD (1)· patent assignee history

2021Based in Shanghai, CN· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
LIGHTMASTER SYSTEMS INC	3	2005–2009
NUTECH OPTICAL SYSTEMS INC	1	2002
OPTIWORKS INC	1	2005
PHOTON DYNAMICS INC	1	1993
SHANGHAI FUDAN MICROELECTRONICS GROUP CO LTD	1	2021

Locations

Location	Patents	Span
Saratoga, California, US	6	1993–2009
Shanghai, CN	1	2021