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:
Feb. 27, 2024
Filed:
Jan. 19, 2021
Oki Electric Industry Co., Ltd., Tokyo, JP;
Manami Hiraide, Tokyo, JP;
OKI Electric Industry Co., Ltd., Tokyo, JP;
Abstract
An image forming apparatus includes a first image forming part that forms a first image on a print medium using a photoluminescent developer containing a photoluminescent pigment; a second image forming part that forms a second image on the print medium using a coloring developer containing a coloring material; and a lamination part that laminates the first image and the second image on the print medium, wherein a viscoelastic phase angle (A) of the coloring developer and a viscoelastic phase angle (B) of the photoluminescent developer when measured at 125[° C.] using a viscoelasticity measuring device satisfy follow:21.1[°]≤()≤31.6[°].