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:
May. 31, 2005
Filed:
Oct. 01, 2001
Hitoshi Arita, Ohta-ku, JP;
Nobutaka Osada, Ohta-ku, JP;
Kiyofumi Nagai, Ohta-ku, JP;
Kakuji Murakami, Ohta-ku, JP;
Akihiko Gotoh, Ohta-ku, JP;
Hitoshi Arita, Ohta-ku, JP;
Nobutaka Osada, Ohta-ku, JP;
Kiyofumi Nagai, Ohta-ku, JP;
Kakuji Murakami, Ohta-ku, JP;
Akihiko Gotoh, Ohta-ku, JP;
Ricoh Company, Ltd., Tokyo, JP;
Abstract
An ink for ink jet recording which is used for an ink jet printer in which at least a portion of a member being in contact with the ink is formed by any one of a borosilicate glass, a soda lime glass, a photosensitive glass, single crystal silicon, polysilicon, a silicon oxide film, a titanium nitride film, a zirconium film, a titanium oxide film, and a silicon nitride film, wherein a corrosion inhibitor is contained, and a phosphonium ion represented by the general formula (Formula 1) described below is contained:(wherein in Formula 1, Ra, Rb, Rc and Rd represent a linear, branched, or cyclic alkyl group having 1 to 4 carbon atoms, a hydroxyalkyl group, a halogenated alkyl group and a substituted or non substituted phenyl group, and Xrepresents a counter ion) is provided.