Inventor · disambiguated record

Nobumasa Kuwashima

Also filed as: KUWASHIMA NOBUMASA

2 granted patents·3 citations·filing 2005–2008

37Inventor score

Technology areasC07D G02C

Files withTOKUYAMA CORP2

Top patents by PatentIndex Score

2 records

0154US7951445B2Photochromic optical article and method of producing the sameTOKUYAMA CORP·Filed 2005·Granted May 31, 2011·3 cites·7 claims
0250US7728154B2Process for the preparation of 1-aryl-3,4-dihydro-1H-naphthalene-2-oneTOKUYAMA CORP·Filed 2008·Granted Jun 1, 2010·0 cites·2 claims

Join the waitlist — get patent alerts

Get an alert when Nobumasa Kuwashima files or is granted a new patent.

We store only your email — no account needed. See our privacy policy.

Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →