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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.:

US 12650654 B1

PDFFull Text
Date of Patent:
Jun. 09, 2026

Filed:

Feb. 19, 2023

Image forming unit and image forming apparatus

Applicant:

Fujifilm Business Innovation Corp., Tokyo, JP;

Inventors:

Kosuke Narita, Kanagawa, JP;

Tomoya Sasaki, Kanagawa, JP;

Ryosuke Fujii, Kanagawa, JP;

Kohei Hashimoto, Kanagawa, JP;

Hiroko Kobayashi, Kanagawa, JP;

Yuto Okazaki, Kanagawa, JP;

Assignee:

FUJIFILM Business Innovation Corp., Tokyo, JP;

Attorney:

JCIPRNET

Primary Examiner:

Mark F Huff

Assistant Examiner:

Charles Collins Sullivan, IV

Int. Cl.
CPC ...
G03G 15/00 (2006.01); G03G 5/05 (2006.01); G03G 5/06 (2006.01); G03G 5/14 (2006.01); G03G 15/02 (2006.01);
U.S. Cl.
CPC ...
G03G 5/056 (2013.01); G03G 5/0564 (2013.01); G03G 5/061443 (2020.05); G03G 5/06147 (2020.05); G03G 5/144 (2013.01); G03G 15/0233 (2013.01); G03G 15/75 (2013.01);
Abstract

An image forming unit includes a photoreceptor and a charging member that comes into contact with a surface of the photoreceptor and charges the photoreceptor, in which the photoreceptor includes a conductive substrate, and a lamination type photosensitive layer disposed on the conductive substrate and including a charge generation layer and a charge transport layer, the charge transport layer contains at least one of a polyester resin that has a constitutional unit having an aromatic ring or a polycarbonate resin that has a constitutional unit having an aromatic ring, the charging member includes a support member and an elastic layer disposed on the support member, and the elastic layer has a storage elastic modulus G' of 5.0 MPa or less at a frequency of 100 Hz in dynamic viscoelasticity measurement under a temperature condition of 24° C.

Find Patent Forward Citations

Narita, Kosuke. (2026). Image forming unit and image forming apparatus (U.S. Patent No. 12650654). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/12650654

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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