Ngk Insulators, Inc.

Kabushiki Kaisha Toyoda Jidoshokki Seisakusho

Kabushiki Kaisha Toyota Chuo Kenkyusho

Shinji Suzuki

Takahiro Tomita

Kyohei Atsuji

Shinpei Oshima

Toru Hayase

Nobuyuki Mori

Yoshio Kadokawa

Yasuhiro Kawabata

A silicon carbide porous body contains β-SiC particles, Si particles, and metal silicide particles. The maximum particle diameter of the β-SIC particles is not smaller than 15 μm. The content of the Si particles is not lower than 10 mass %. The maximum particle diameter of the Si particles is not larger than 40 μm. Further, an oxide coating film having a thickness not smaller than 0.01 μm and not larger than 5 μm is provided on surfaces of the Si particles.

Silicon carbide porous body, honeycomb structure, electrically heated catalyst, and method of manufacturing silicon carbide porous body

A composite sintered body contains a silicon phase which is a main phase, a cordierite phase, and an amorphous phase containing Si. Further, the volume resistivity thereof at a room temperature is not lower than 0.1 &#x3a9;&#xb7;cm and not higher than 2.5 &#x3a9;&#xb7;cm.

Composite sintered body, honeycomb structure, electrically heated catalyst, and method of manufacturing composite sintered body

A honeycomb structure has a plurality of cells formed by a plurality of partition walls. The partition walls are formed of a porous material composed predominantly of cordierite. Each partition wall includes surface layer portions having a porosity of 50% or more and an inside portion having a porosity of 50% or more, the surface layer portions being portions ranging respectively from opposite surfaces to a depth corresponding to 25% of the thickness of the partition wall, and the inside portion being the other portion. The surface layer portions and the inside portion both include pores having axial pore widths of less than 30 &#x3bc;m and pores having axial pore widths of 30 &#x3bc;m or more. A mean axial pore width in the surface layer portions is smaller than a mean axial pore width in the inside portion.

Honeycomb structure and method of producing honeycomb structure

A low-vibration steering device for use on industrial vehicles comprising a steering shaft rotatably supported at its lower end by a gearbox and connected to a steering wheel at its upper end, a tubular steering column enclosing the steering shaft with an annular spacing left between the inside diameter of the steering column and the outside diameter of the steering shaft, a steering column clamp secured to a chassis frame of the vehicle and holding the steering column at a portion above its middle portion, a flexible vibration shutoff member disposed between a lower end portion of the steering column and a portion of the steering shaft near its lower end to support the said lower end portion by said portion near said lower end, and an oil-impregnated bearing interposed between an upper end portion of the steering column and a corresponding upper end portion of the steering shaft and having a greater rigidity than the flexible member. The flexible member may be disposed between a lower end portion of the steering column and the gearbox to connect the former with the latter. The configuration of the flexible member is determined so that an elastic constant thereof is kept comparatively small while a load applied thereto due to a radial movement of the lower portion of the steering column relative to the steering shaft is small, but the constant becomes large when the load exceeds a preset limit.

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Nagoya, Japan

Shinji Suzuki