Inventor
TSUKAHARA HISASHI
JP11 patents
⚠️ This page may combine multiple inventors who share the name “TSUKAHARA HISASHI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
MITSUI CHEMICALS INC
8 patentsUS5948593ASep 7, 1999
Optical recording medium
MITSUI CHEMICALS INC36 citations92
US6627288B1Sep 30, 2003
Optical recording medium and porphycene compound
MITSUI CHEMICALS INC13 citations83
US6162520ADec 19, 2000
Optical recording medium and dipyrromethene metal chelate compound for use therein
MITSUI CHEMICALS INC6 citations72
US7094516B2Aug 22, 2006
Benzobisazole compound and optical recording medium containing the compound
MITSUI CHEMICALS INC4 citations62
US6479123B2Nov 12, 2002
Dipyrromethene-metal chelate compound and optical recording medium using thereof
MITSUI CHEMICALS INC3 citations62
US6060606AMay 9, 2000
Dipyrromethene metal chelate compounds
MITSUI CHEMICALS INC4 citations62
US6355327B1Mar 12, 2002
Optical recording medium and dipyrromethene metal chelate compound for use therein
MITSUI CHEMICALS INC0 citations51
US7405030B2Jul 29, 2008
Imide compound and optical recording media made by using the same
MITSUI CHEMICALS INC1 citations50