Inventor
OKADA KYOHJI
JP4 patents
⚠️ This page may combine multiple inventors who share the name “OKADA KYOHJI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
RICOH KK
3 patentsUS7456132B2Nov 25, 2008
Phenol compound, reversible thermosensitive recording medium, reversible thermosensitive recording label, reversible thermosensitive recording member, image-processing apparatus and imaging-processing method
RICOH KK6 citations61
US7553796B2Jun 30, 2009
Phenol compound, reversible thermosensitive recording medium, reversible thermosensitive recording label, reversible thermosensitive recording member, image-processing apparatus and image-processing method
RICOH KK0 citations50
US7419934B2Sep 2, 2008
Reversible thermosensitive coloring material and reversible thermosensitive recording material using the reversible thermosensitive coloring material
RICOH KK0 citations49