Invention Grant
- Patent Title: Pressing rotating member and production method thereof, fixing apparatus, and electrophotographic image forming apparatus
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Application No.: US17554211Application Date: 2021-12-17
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Publication No.: US11561495B2Publication Date: 2023-01-24
- Inventor: Naoko Kasai , Yohei Miyauchi , Yasuharu Notoya , Takuji Oishi , Yasuhiro Miyahara , Masaaki Takahashi , Yusuke Baba , Hiroki Muramatsu , Ryo Ishifuji
- Applicant: CANON KABUSHIKI KAISHA
- Applicant Address: JP Tokyo
- Assignee: CANON KABUSHIKI KAISHA
- Current Assignee: CANON KABUSHIKI KAISHA
- Current Assignee Address: JP Tokyo
- Agency: Venable LLP
- Priority: JPJP2020-217926 20201225,JPJP2021-194429 20211130
- Main IPC: G03G15/20
- IPC: G03G15/20

Abstract:
A pressing rotating member comprising a base layer, an elastic layer and a surface layer, in this order, the surface layer having pores, wherein when placing an observation region of 8 μm long×11 μm wide at a cross section of the surface layer in a thickness direction of the surface layer—a direction perpendicular to a circumferential direction of the pressing rotating member, a degree of orientation f of the pores observed in the observation region is 0.20 or higher, and an orientation angle Φ of the pores observed in the observation region is 0° to 10°.
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