Nichias Corporation

Zenith, LLC

Nichias Co., Ltd.

Osamu Horiuchi

Tatsuo Takagi

Masaaki Nakayama

Kazuhisa Watanabe

Kohichi Kimura

Yoshiyuki Motoyoshi

Yoshihisa Miyahara

Hiromi Furuya

Kouichi Kimura

Nobuya Tomosue

Shigeru Nakama

Kiyoshi Sato

Kazutaka Murayama

Yousuke Suganuma

Toshihisa Okabe

A foamed body that is a porous foamed body including inorganic fibers other than asbestos, and having a compressive stress when compressed at normal temperature at a compression ratio of 80% of 0.1 MPa or less and a recovery ratio when compressed at normal temperature at a compression ratio of 80% of 50% or more.

Foam

A process for producing a base material for disks including forming a raw slurry material into a platy shape and drying the plate, the raw slurry material containing inorganic fibers which have a wet volume of about 300 mL/5 g or larger and which are amorphous or have a degree of crystallinity of about 50% or lower.

Base material for disk process for producing the same, and disk roll

The present invention relates to a process for producing a base material for obtaining therefrom ring-shaped disks for use in a disk roll including a rotating shaft and the ring-shaped disks fitted thereon by insertion, whereby the peripheral surface of the disks serves as a conveying surface, the process including molding a raw slurry material into a platy shape and drying the plate, the raw slurry material containing inorganic fibers which have a wet volume of 300 mL/5 g or larger and which are amorphous or have a degree of crystallinity of 50% or lower.

Base material for disk, process for producing the same, and disk roll

A disk roll base material includes 20 to 38 wt % of alumina silicate wool that include 40 to 60 wt % of alumina and 40 to 60 wt % of silica, and have a content of shots having a dimension of 45 &#x3bc;m or more of 5 wt % or less, 10 to 30 wt % of kibushi clay, 2 to 20 wt % of bentonite, and 20 to 40 wt % of mica.

Disk roll and base material thereof

A tubular member for an oil application device is formed separately and is fitted in such a manner as to cover a peripheral face of a porous cylindrical oil retaining member. The tubular member for the oil application device has a multi-layer structure including an inner layer and an outermost layer. The inner layer is a fibrous layer, and the outermost layer is a porous film. The porous cylindrical oil retaining member can be easily covered with, fitted with, and removed of the member for the oil application device, which is made from a fibrous layer such as a felt or from a porous film such as a PTFE film.

Member for oil application device, method of manufacturing the member, and oil application device

An oil application device having an oil application amount control layer bonded to an oil retaining member for retaining application-use silicone oil using the mixture of adhesive and mixture-use silicone oil. The ratio (V )/(V ) of a viscosity (V ) of the mixture-use silicone oil at 25&deg; C. to a viscosity (V ) of the application-use silicone oil at 25&deg; C. ranges from 50/1 to 1/10. By using the oil application device, releasing oil can be applied to a thermal fixing roller uniformly. The oil application amount control layer does not peel off or is not displaced during operation, and no oil exudes during nonuse.

Oil application device having oil application amount control layer bonded to oil retaining member for retaining application-use silicone oil using mixture of adhesive and mixture-use silicone oil

An oil holding cylinder for an oil coating roller is provided. The cylinder includes at least a cylindrical non-sintered molded body, which is formulated from a mixture of at least ceramic fiber and an organic binder. In addition, the mixture can further include clay, an inorganic binder, or a combination thereof. The molded body preferably has a porosity in a range of about 30% to about 70%. In operation, the oil holding cylinder disclosed herein can stably and uniformly supply oil to the fixing rollers and the like for an extended period of time, while preventing offset.

Oil holding cylinder for an oil coating roller and method therefor

A coating fluid holding member including a porous molded body which is formed of heat-resistant fibers (or a mixture of heat-resistant fibers and a filler) bound to each other with a binder, has intercommunicating pores having an average pore size of 1 to 500 .mu.m, and has a porosity of 20 to 90%, and a coating fluid holding member including a porous molded body which is formed of heat-resistant fibers bound to each other with a binder, contains fine intercommunicating interstices between fibers and uniformly distributed pores having a diameter of 0.05 to 2 mm, and has a porosity of 30 to 90%. The holding member has a high fluid holding capacity for its volume and releases the coating fluid, such as a parting agent, an oil or a coating compound, in a stable manner for an extended period of time.

Process for producing a coating fluid holding member

To provide an oil supplying means for an oil coating roller, by which oil can be supplied stably for a long time while preventing offset, a cylindrical non-sintered molded body which is a mixture of ceramic fiber and clay is used as an oil holding member in an oil coating roller.

Disclosed is an oil coating roller composed of a coating fluid holding member comprising a porous hollow cylindrical molded body impregnated with a coating fluid, such as silicone oil, with a driving shaft inserted through the hollow portion thereof, both ends of the coating fluid holding member being fixed to the driving shaft, and felt fabricated of heat-resistant fiber wounded around the outer surface thereof, wherein the porous hollow cylindrical molded body is fabricated of heat-resistant fibers bound to each other with a binder and has an average pore size of 15 to 50 .mu.m and a porosity of 50 to 80%. The oil coating roller can be produced with ease, stably feeds the coating fluid for an extended period of time, and is particularly suitable for applying silicone oil to a fixing roller of an electrostatic copying machine.

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Shizuoka, Japan

Osamu Horiuchi