Inventor
ITO YUKIYOSHI
JP12 patents
⚠️ This page may combine multiple inventors who share the name “ITO YUKIYOSHI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
KYOWA HAKKO KOGYO KK
6 patentsUS5660970AAug 26, 1997
Optical information recording medium using a squarylium compound
KYOWA HAKKO KOGYO KK7 citations74
US5391741AFeb 21, 1995
Squarylium compound and optical information recording medium using the same
KYOWA HAKKO KOGYO KK7 citations74
US5527659AJun 18, 1996
Chemical amplification resist composition containing photochemical acid generator, binder and squarylium compound
KYOWA HAKKO KOGYO KK18 citations71
US5142001AAug 25, 1992
Polyurethane composition
KYOWA HAKKO KOGYO KK11 citations71
US5756258AMay 26, 1998
Photopolymerizable composition containing an addition polymerizable compound, a radical-producing agent and a squarylium compound
KYOWA HAKKO KOGYO KK15 citations70
US4783403ANov 8, 1988
Process for producing l-phenylalanine
KYOWA HAKKO KOGYO KK11 citations69
RICOH KK
4 patentsUS5149819ASep 22, 1992
Squarylium compounds and optical information recording medium using the same
RICOH KK49 citations92
US5510229AApr 23, 1996
Optical information recording medium using squarylium compounds
RICOH KK10 citations73
US5256794AOct 26, 1993
Squarylium compounds
RICOH KK13 citations73
US5085909AFeb 4, 1992
Squarylium compounds and optical information recording medium using the same
RICOH KK15 citations73