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. 28, 2019
Filed:
Apr. 26, 2018
Kyocera Document Solutions Inc., Osaka, JP;
Tomoyuki Ogawa, Osaka, JP;
KYOCERA Document Solutions Inc., Osaka, JP;
Abstract
An electrostatic latent image developing toner includes a plurality of toner particles each including a toner core and a shell layer. The toner core contains a releasing agent substituted by a carboxyl group. The shell layer covers the entirety of a surface of the toner core. The shell layer includes a unit substituted by a ring-unopened oxazoline group. An amount of the ring-unopened oxazoline group contained in 1 g of the toner as measured by gas chromatography-mass spectrometry is at least 500 μmol and no greater than 1,400 μmol. An amount of endothermic energy generated due to melting of the releasing agent contained in 1 mg of the toner as measured by differential scanning calorimetry is at least 80 mJ and no greater than 160 mJ.