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:
Sep. 05, 2017
Filed:
Feb. 27, 2014
Minoru Hakiri, Shizuoka, JP;
Mitsuru Naruse, Shizuoka, JP;
Masayasu Nonogaki, Shizuoka, JP;
Keita Katoh, Shizuoka, JP;
Akihiko Matsuyama, Shizuoka, JP;
Kazukiyo Nagai, Shizuoka, JP;
Yuusuke Koizuka, Shizuoka, JP;
Masato Matsumura, Kyoto, JP;
Takuya Furuta, Kyoto, JP;
Minoru Hakiri, Shizuoka, JP;
Mitsuru Naruse, Shizuoka, JP;
Masayasu Nonogaki, Shizuoka, JP;
Keita Katoh, Shizuoka, JP;
Akihiko Matsuyama, Shizuoka, JP;
Kazukiyo Nagai, Shizuoka, JP;
Yuusuke Koizuka, Shizuoka, JP;
Masato Matsumura, Kyoto, JP;
Takuya Furuta, Kyoto, JP;
Ricoh Company, Ltd., Tokyo, JP;
GOO CHEMICAL CO., LTD., Uji-shi, JP;
Abstract
An inkjet recording ink, including: water; a water-soluble organic solvent; a pigment; and a phosphate group-containing copolymer, wherein the phosphate group-containing copolymer contains a structural unit represented by the following General Formula (1) and a structural unit represented by the following General Formula (2): where R1 denotes a hydrogen atom or a methyl group; Mdenotes an alkali metal ion, an organic amine ion, or a hydrogen ion; half or more of Min the copolymer is the alkali metal ion or the organic amine ion, the remainder of Mis the hydrogen ion; n and m each denote an integer of 0 to 6, provided that both of n and m are not 0; and a block of (CHO) and a block of (CHO) may be exchanged with each other, where R2 denotes a hydrogen atom or a methyl group.