Invention Grant
- Patent Title: Filter medium, fluid filter, and engine oil filter
- Patent Title (中): 过滤介质，流体过滤器和发动机机油滤清器
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Application No.: US12135411Application Date: 2008-06-09
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Publication No.: US07987996B2Publication Date: 2011-08-02
- Inventor: Yoshihiro Ohashi , Shin Bando , Masahumi Suzuki
- Applicant: Yoshihiro Ohashi , Shin Bando , Masahumi Suzuki
- Applicant Address: JP Aichi-Ken JP Tokushima-Ken
- Assignee: Toyota Boshoku Kabushiki Kaisha,Awa Paper Mfg. Co., Ltd.
- Current Assignee: Toyota Boshoku Kabushiki Kaisha,Awa Paper Mfg. Co., Ltd.
- Current Assignee Address: JP Aichi-Ken JP Tokushima-Ken
- Agency: Greenblum & Bernstein, P.L.C.
- Priority: JP2007-163079 20070620
- Main IPC: B01D39/16
- IPC: B01D39/16 ; B01D39/04 ; B01D39/14 ; B01D39/18
Abstract:
A filter medium comprises a modified cross-section fiber (A) having a fiber diameter between 40 and 70 μm, an extremely fine fiber (B) having a fiber diameter of more than 5 μm and no more than 10 μm and a modified cross-section fiber (C) having a fiber diameter between 15 and 30 μm, the content of the extremely fine fiber (B) is between 3 and 10% by mass, and the content of the modified cross-section fiber (C) is between 5 and 15% by mass based on 100% by mass of total the fibers in the filter medium.
Public/Granted literature
- US20080314821A1 FILTER MEDIUM, FLUID FILTER, AND ENGINE OIL FILTER Public/Granted day:2008-12-25
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