Inventor · disambiguated record
Ryuichi Hoshikawa
Also filed as: HOSHIKAWA RYUICHI
2 granted patents·44 citations·filing 1997–1999
64Inventor score
Files withMATSUI SHIKISO KAGAKU KOGYOSHO2
Top patents by PatentIndex Score
2 records- 0162US6264855B1Process for preparing water resistant luminous pigmentsMATSUI SHIKISO KAGAKU KOGYOSHO·Filed 1999·Granted Jul 24, 2001·23 cites·10 claims
- 0259US6008269AUltraviolet hardening type ink compositions with a temperature-sensitive color change propertyMATSUI SHIKISO KAGAKU KOGYOSHO·Filed 1997·Granted Dec 28, 1999·21 cites·5 claims
Join the waitlist — get patent alerts
Get an alert when Ryuichi Hoshikawa 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 →