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. 21, 2025
Filed:
Jan. 31, 2022
Applicant:
Hewlett-packard Development Company, L.p., Spring, TX (US);
Inventors:
Assignee:
Hewlett-Packard Development Company, L.P., Spring, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03G 9/097 (2005.12); G03G 9/08 (2005.12); G03G 9/093 (2005.12); G03G 15/08 (2005.12);
U.S. Cl.
CPC ...
G03G 9/09725 (2012.12); G03G 9/0819 (2012.12); G03G 9/0823 (2012.12); G03G 9/09328 (2012.12); G03G 9/09371 (2012.12); G03G 9/09708 (2012.12); G03G 15/0865 (2012.12);
Abstract
A toner particle includes a core particle including a binder resin, and a plurality of fine particles that are smaller than the core particle and that are attached to a surface of the core particle. The fine particles include silica fine particles, and inorganic fine particles having a band gap energy of 2.5 to 7.0 eV and a relative permittivity of 30 to 100. The toner particle has a content of titanium dioxide of less than 1% by mass.