Inventor · disambiguated record
Kazumasa Itonaga
Also filed as: ITONAGA KAZUMASA
3 granted patents·98 citations·filing 1993–1996
75Inventor score
Files withTOKUYAMA CORP3
Top patents by PatentIndex Score
3 records- 0194US5395566APhotochromic compositionTOKUYAMA CORP·Filed 1993·Granted Mar 7, 1995·47 cites·16 claims
- 0287US5462698APhotochromic compositionTOKUYAMA CORP·Filed 1994·Granted Oct 31, 1995·21 cites·15 claims
- 0370US5879591AProcess for production of photochromic cured productTOKUYAMA CORP·Filed 1996·Granted Mar 9, 1999·30 cites·8 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →