Inventor
OKUBO SHUICHI
JP9 patents
⚠️ This page may combine multiple inventors who share the name “OKUBO SHUICHI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
NEC CORP
4 patentsUS6064642AMay 16, 2000
Phase-change type optical disk
NEC CORP25 citations91
US6657946B2Dec 2, 2003
Phase change type optical disk having different reflectances at crystalline and amorphous states
NEC CORP17 citations82
US6646978B2Nov 11, 2003
Optical storage medium with improved substrate structure to provide uniform signal quality
NEC CORP6 citations72
US6203877B1Mar 20, 2001
Optical information recording medium
NEC CORP11 citations72
JAPAN ENERGY CORP
3 patentsUS5565978AOct 15, 1996
Total-reflection type refractive index sensor
JAPAN ENERGY CORP60 citations94
US5641230AJun 24, 1997
Method of determining cloud points and cloud point meter
JAPAN ENERGY CORP22 citations91
US5731994AMar 24, 1998
Method of packing particles into vessels and apparatus therefor
JAPAN ENERGY CORP17 citations82