Patent application number | Description | Published |
20080251978 | MANUFACTURING METHOD OF PLUGGED HONEYCOMB STRUCTURE - A method for manufacturing a plugged honeycomb structure | 10-16-2008 |
20080280064 | MARKING COMPOSITION AND INFORMATION DISPLAY METHOD - A marking composition comprises an inorganic pigment having an average diameter of o.1 to 5 μm and a titanium-containing ceramic resin. The composition exhibits excellent concealing properties and heat resistance and produces a high definition marking with high contrast and excellent discrimination capability when applied to the surface of an article. | 11-13-2008 |
20090146350 | PROCESS FOR PRODUCING HONEYCOMB STRUCTURE - A process for producing a honeycomb structure includes: a mixing step where forming raw materials including a ceramic raw material are mixed to obtain a forming blended material, a kneading step where the forming blended material is kneaded to obtain kneaded clay, a forming step where the kneaded clay is formed into a honeycomb shape to obtain a honeycomb formed article, and a firing step where the honeycomb formed article is fired to obtain a honeycomb structure. The ceramic raw material is a cordierite forming raw material, and a magnetic powder contained in the kneaded clay is at a ratio of 400 ppm or less with respect to solid content conversion mass of the whole kneaded clay. There is provided a honeycomb structure capable of improving trapping efficiency, in particular, initial trapping efficiency by reducing the number of coarse pores in the partition walls. | 06-11-2009 |
20090239031 | PLUGGED HONEYCOMB STRUCTURE - There is provided a honeycomb structure including: porous partition walls separating and forming a plurality of cells extending between two end faces, and an outer peripheral wall formed unitarily with the partition walls. The cells include outermost peripheral portion partial cells each locating in an outermost peripheral portion of the honeycomb structure and having an incomplete cell cross section, a part of which is brought into contact with the outer peripheral wall, and complete cells each having a complete cell cross section other than the outermost peripheral portion partial cells. The complete cells and the outermost peripheral portion partial cells having plugging portions formed on one end portion so that an entire end face of the honeycomb structure shows a checkerwise plugging pattern, and the depth of the plugging portions in the outermost peripheral partial cells is smaller than that of the plugging portions in the complete cells. | 09-24-2009 |
20090239032 | PLUGGED HONEYCOMB STRUCTURE - A honeycomb structure comprising
| 09-24-2009 |
20090243139 | MANUFACTURING APPARATUS OF PLUGGED HONEYCOMB STRUCTURE AND MANUFACTURING METHOD OF THE SAME - A manufacturing apparatus of a plugged honeycomb structure includes a table portion | 10-01-2009 |
20090246458 | HONEYCOMB STRUCTURE AND MANUFACTURING METHOD OF THE SAME - There is disclosed a honeycomb structure in which while sufficiently maintaining a collection efficiency and a bonding strength of a plugging portion, a thermal shock resistance is improved. A plugging portion | 10-01-2009 |
20090283928 | METHOD OF MANUFACTURING PLUGGED HONEYCOMB STRUCTURE - A method of manufacturing a plugged honeycomb structure has a plugging process which includes the steps of: immersing one end (a first end) of a honeycomb base material in a plugging slurry while vibrating the plugging slurry; after bringing an internal part of a cell into a negative pressure and then returning it into an atmospheric pressure, vibrating the plugging slurry to make the plugging slurry enter a first open end of the cell; and drying the plugging slurry having entered the first open end of the cell to form a first plugging portion at the first end. | 11-19-2009 |
20100108242 | FILM STICKING APPARATUS AND FILM STICKING METHOD - The film sticking apparatus includes: a gripping member; a pressing member pressing the adhesive face of the film being held in a planar state against one end face of a cylindrical honeycomb structure having a plurality of cells, and thus sticking the film to the one end face; and a folding member having an opening portion formed that allows an end of the honeycomb structure on the side to which the film is stuck to be inserted, wherein the folding member folds a protruding portion of the film protruding from the one end face of the honeycomb structure by inserting the honeycomb structure into the opening portion, toward a side face of the honeycomb structure, and simultaneously presses at least a part of the folded protruding portion against a part of the side face of the honeycomb structure to stick the film to the side face. | 05-06-2010 |
20100109198 | APPARATUS FOR INJECTING SLURRY AND METHOD THEREFOR - The apparatus for injecting slurry contains the first member having the cavity therein; and the second member having a plurality of convex sections, each of the convex sections having the injection hole formed therein communicating with the cavity, wherein the protrusion length of the convex section is in a range from 3 to 5 mm, and the distance between centers of adjacent convex sections is in a range from 3 to 13 mm. | 05-06-2010 |
20110304073 | METHOD FOR MANUFACTURING PLUGGED HONEYCOMB STRUCTURE - A method for manufacturing a plugged honeycomb structure includes: a step of forming a columnar honeycomb formed body, and a plugging step of forming plugging portions in each of cells of the honeycomb formed body; wherein the plugging step has a plugging slurry injection operation where plugging slurry is injected into the cells by inserting the honeycomb formed body into a bottomed cylindrical inside container containing the plugging slurry and having a Young's modulus of 5 to 550 MPa and a tensile stress of 0.5 to 11 MPa and being disposed in a bottomed cylindrical outside container and by pressing one end portion against the bottom face of the inside container, and then the honeycomb formed body is pulled out from the inside container. There is provided a method for manufacturing a plugged honeycomb structure, the method being capable of inhibiting depression and protrusion of plugging portions. | 12-15-2011 |