Inventor
OKAMOTO TETSU
JP4 patents
⚠️ This page may combine multiple inventors who share the name “OKAMOTO TETSU”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
USHIO ELECTRIC INC
3 patentsUS7960923B2Jun 14, 2011
High pressure discharge lamp lighting apparatus
USHIO ELECTRIC INC6 citations61
US7649319B2Jan 19, 2010
Ultra-high pressure mercury lamp
USHIO ELECTRIC INC2 citations60
US8044334B2Oct 25, 2011
High-pressure discharge lamp light source device having a power supply device with a switching state for switching from a direct current drive in a standby state to an alternating current drive in an operating state and projector
USHIO ELECTRIC INC6 citations55