Inventor
CHANG ON-KOK
US18 patents
⚠️ This page may combine multiple inventors who share the name “CHANG ON-KOK”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
VALENCE TECHNOLOGY INC
6 patentsUS5326653AJul 5, 1994
Battery unit with reinforced current collector tabs and method of making a battery unit having strengthened current collector tabs
VALENCE TECHNOLOGY INC89 citations96
US5390230AFeb 14, 1995
Controlled atmosphere, variable volume sample holder for x-ray diffractomer
VALENCE TECHNOLOGY INC28 citations92
US5290704AMar 1, 1994
Method of detecting organic solvent vapors
VALENCE TECHNOLOGY INC18 citations73
US5426055AJun 20, 1995
Method to detect Lewis acid decomposition products in lithium salt-containing nonaqueous electrolyte
VALENCE TECHNOLOGY INC6 citations62
US5304436AApr 19, 1994
Method and apparatus for drying a non-aqueous liquid electrolyte
VALENCE TECHNOLOGY INC6 citations62
US5290702AMar 1, 1994
Method of detecting and mapping organic solvent-containing materials on a surface
VALENCE TECHNOLOGY INC6 citations62
ALTUS CORP
5 patentsUS4863815ASep 5, 1989
Cell design for spirally wound rechargeable alkaline metal cell
ALTUS CORP50 citations89
US4892796AJan 9, 1990
Positive current collector for lithium secondary system
ALTUS CORP11 citations73
US4873158AOct 10, 1989
Overdischarge protection for rechargeable cells
ALTUS CORP12 citations73
US4844993AJul 4, 1989
Additive to improve voltage regulation in a lithium-copper chloride rechargeable cell
ALTUS CORP10 citations73
US4902588AFeb 20, 1990
Electrolyte additives to improve voltage regulation in the lithium-copper chloride rechargeable cell
ALTUS CORP5 citations62
(unassigned)
4 patentsUS5519218AMay 21, 1996
Sample holder for spectroscopy
75 citations95
US5545496AAug 13, 1996
Process for producing filament-like vanadium oxide for use in solid state rechargeable electrochemical cells and the use thereof as a cathode in electrochemical cells
22 citations92
US5442298AAug 15, 1995
Method and apparatus for measuring resistivity of geometrically undefined materials
8 citations73
US5469069ANov 21, 1995
Method and apparatus for measuring resistivity of geometrically undefined materials
2 citations62