Inventor
Chang-Hoon Oh
Inventor
Seoul, KR
Overview
Patents· 8 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
G02Bprimary
G02BOptical elements, systems or apparatus30%
B29DProducing particular articles from plastics or from substances in a plastic state15%
G03BApparatus or arrangements for taking photographs or for projecting or viewing them15%
A61PSpecific therapeutic activity of chemical compounds or medicinal preparations5%
B24BMachines, devices, or processes for grinding or polishing5%
C07DHeterocyclic compounds5%
G01JMeasurement of intensity, velocity, spectral content, polarisation, phase or pulse characteristics of infrared, visible or ultraviolet light5%
G02FOptical devices or arrangements for the control of light by modification of the optical properties of the media of the elements involved therein5%
G03FPhotomechanical production of textured or patterned surfaces, e.g. for printing, for processing of semiconductor devices5%
G11BInformation storage based on relative movement between record carrier and transducer5%
PatentTitleYear
8,416,509'Optical apparatus'20137,507,814'Process for preparation of imipenem'20097,480,098'Microlens array sheet having black matrix and method of manufacturing the same'20097,289,421'Optical pickup head of optical recording reproducing apparatus, fabrication method thereof, lubricant-coated optical pickup head of optical recording reproducing apparatus and lubricant coating method thereof'20077,268,949'Microlens array sheet and manufacturing method thereof'20077,259,915'Microlens array sheet'20077,248,407'Microlens array sheet of projection screen, and method for manufacturing the same'20077,123,791'Optical fiber coupling system and manufacturing method thereof'2006Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
2006–2009Patents assigned to LG ELECTRONICS INC (3)· patent assignee history
2006–2013Based in Seoul, KR· patent location history
2007–2009Patents assigned to LG MICRON LTD (4)· patent assignee history
2009Patents assigned to CHOONGWAE PHARM CO (1)· patent assignee history
2009Based in Siheung-si, KR· patent location history
2013Patents assigned to CHAE SEUNGKI (1)· patent assignee history
2013Patents assigned to HAHN JAE-WON (1)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| LG MICRON LTD | 4 | 2007–2009 |
| LG ELECTRONICS INC | 3 | 2006–2009 |
| CHAE SEUNGKI | 1 | 2013 |
| CHOONGWAE PHARM CO | 1 | 2009 |
| HAHN JAE-WON | 1 | 2013 |
Locations
| Location | Patents | Span |
|---|---|---|
| Seoul, KR | 7 | 2006–2013 |
| Siheung-si, KR | 1 | 2009 |