The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 15, 2014
Filed:
Feb. 02, 2012
Applicants:
Takao Hiraoka, Kanagawa, JP;
Tomoko Hasegawa, Ibaraki, JP;
Tsutomu Maekawa, Kanagawa, JP;
Inventors:
Assignee:
Ricoh Company, Ltd., Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
G01D 11/00 (2006.01); C09D 11/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
A photopolymerizable inkjet black ink having a viscosity not greater than 20 mPa·s at 60° C., including a clear ink having a viscosity not greater than 15 mPa·s at 60° C. including a photopolymerizable monomer having a Stimulation Index (SI value) less than 3 when subjected to a skin sensitization test (LLNA method) and a polymerization initiator without including carbon black and insolubles; and a carbon black in an amount not greater than 7% by weight.