Inventor

SHIROMARU OSAMU

JP7 patents

⚠️ This page may combine multiple inventors who share the name “SHIROMARU OSAMU”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

TOYO INK MFG CO

6 patents

US6989055B2Jan 24, 2006

Monoazo lake pigment composition and gravure ink using the same

TOYO INK MFG CO8 citations69

US7255733B2Aug 14, 2007

Process for the production of β type copper phthalocyanine pigment and a use thereof

TOYO INK MFG CO4 citations60

US7211664B2May 1, 2007

Process for the production of epsilon crystal form copper phthalocyanine

TOYO INK MFG CO2 citations59

US5489672AFeb 6, 1996

Process for the production of dis-azo pigment whose amine content is small, and pigment produced by said process

TOYO INK MFG CO2 citations59

US6860934B2Mar 1, 2005

Process for the production of β type copper phthalocyanine pigment

TOYO INK MFG CO6 citations58

US7067652B2Jun 27, 2006

Copper phthalocyanine/iodine intermolecular compound and process for the production thereof

TOYO INK MFG CO0 citations49

TOYO INK MFG COMPANY

1 patent

US6692559B2Feb 17, 2004

Pigment yellow 74 and printing ink composition

TOYO INK MFG COMPANY6 citations51