Inventor
NAGOH HIRONOBU
JP19 patents
⚠️ This page may combine multiple inventors who share the name “NAGOH HIRONOBU”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
TOKUYAMA CORP
14 patentsUS5776376AJul 7, 1998
Photochromic curable composition
TOKUYAMA CORP79 citations95
US6141135AOct 31, 2000
Photochromic composition
TOKUYAMA CORP19 citations92
US6723859B2Apr 20, 2004
Chromene compound
TOKUYAMA CORP45 citations91
US5879591AMar 9, 1999
Process for production of photochromic cured product
TOKUYAMA CORP30 citations91
US5556931ASep 17, 1996
Polymerizable composition and organic glass
TOKUYAMA CORP49 citations91
US7763693B2Jul 27, 2010
Curable composition
TOKUYAMA CORP10 citations84
US6362248B1Mar 26, 2002
Photochromic polymerizable composition
TOKUYAMA CORP17 citations83
US6197225B1Mar 6, 2001
Chromene compound
TOKUYAMA CORP16 citations83
US7169941B2Jan 30, 2007
Photochromic composition
TOKUYAMA CORP8 citations74
US8012596B2Sep 6, 2011
Photochromic lens substrate
TOKUYAMA CORP5 citations62
US7048876B2May 23, 2006
Chromene compound
TOKUYAMA CORP3 citations62
US7951445B2May 31, 2011
Photochromic optical article and method of producing the same
TOKUYAMA CORP3 citations59
US6875878B2Apr 5, 2005
Chromene compound
TOKUYAMA CORP1 citations51
US6110400AAug 29, 2000
Fulgimide compound and use thereof and composition containing said compound
TOKUYAMA CORP0 citations40