Inventor · disambiguated record
Osamu Shiromaru
Also filed as: SHIROMARU OSAMU
7 granted patents·28 citations·filing 1994–2005
81Inventor score
Top patents by PatentIndex Score
7 records- 0169US7211664B2Process for the production of epsilon crystal form copper phthalocyanineTOYO INK MFG CO·Filed 2005·Granted May 1, 2007·2 cites·9 claims
- 0264US6989055B2Monoazo lake pigment composition and gravure ink using the sameTOYO INK MFG CO·Filed 2003·Granted Jan 24, 2006·8 cites·6 claims
- 0363US6860934B2Process for the production of β type copper phthalocyanine pigmentTOYO INK MFG CO·Filed 2004·Granted Mar 1, 2005·6 cites·4 claims
- 0460US7255733B2Process for the production of β type copper phthalocyanine pigment and a use thereofTOYO INK MFG CO·Filed 2004·Granted Aug 14, 2007·4 cites·6 claims
- 0553US6692559B2Pigment yellow 74 and printing ink compositionTOYO INK MFG COMPANY·Filed 2002·Granted Feb 17, 2004·6 cites·5 claims
- 0649US7067652B2Copper phthalocyanine/iodine intermolecular compound and process for the production thereofTOYO INK MFG CO·Filed 2005·Granted Jun 27, 2006·0 cites·7 claims
- 0740US5489672AProcess for the production of dis-azo pigment whose amine content is small, and pigment produced by said processTOYO INK MFG CO·Filed 1994·Granted Feb 6, 1996·2 cites·6 claims
Join the waitlist — get patent alerts
Get an alert when Osamu Shiromaru 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 →