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| Number | Title | Issue Date |
| 8181972 | Sealing material for dovetail groove and vacuum gate valve provided with sealing material for dovetail groove A sealing material in a closed circular shape for a dovetail groove formed on the surface of one member and to be abutted to the surface of the other member to seal a space between the both members, the sealing material for a dovetail groove in a cross-sectional sha... | 05/22/2012 |
| 8146924 | Low-compression force metal gaskets A low-compression force metal gasket includes a coating layer containing a polymer material on at least a sealing surface of the gasket, and the coating layer satisfies the following conditions (1) to (3): (1) the layer comprises a resin, a rubber or a mixture there... | 04/03/2012 |
| D655797 | Hybrid seal member | 03/13/2012 |
| D655401 | Hybrid seal member | 03/06/2012 |
| 8092629 | Method for forming porous PTFE layer A method for forming a porous PTFE layer includes steps of: combining one or at least two unburned porous PTFE films and a support body that can withstand a heating condition in the following process (a rod or plate shaped support body made of mesh or the like is pr... | 01/10/2012 |
| 8074967 | Gate valve for vacuum and seal member used therefor A gate valve for vacuum capable of preventing a seal member from being cracked or particles from being produced due to a stress concentration even if the seal member is repeatedly compressed in the state that the adhesive agent is separated from the open side of a s... | 12/13/2011 |
| 8029635 | Method for forming porous PTFE layer A method for forming a porous PTFE layer includes steps of: combining one or at least two unburned porous PTFE films and a support body that can withstand a heating condition in the following process (a rod or plate shaped support body made of mesh or the like is pr... | 10/04/2011 |
| D633991 | Gate valve seal | 03/08/2011 |
| 7896354 | Composite sealing material A composite sealing material to be installed in a sealing groove includes a first sealing member that is located on the outer peripheral side of the sealing groove and that is made of an elastic member; and a second sealing member that is located on the inner periph... | 03/01/2011 |
| 7867351 | Method for forming porous PTFE layer A method forming a porous PTFE layer includes steps of: combining one or at least two unburned porous PTFE films and a support body that can withstand a heating condition in the following process (a rod or plate shaped support body made of mesh or the like is prefer... | 01/11/2011 |
| 7866669 | Composite sealing material When the composite sealing material is press-fitted, the swelled portion of the first sealing portion of a first sealing member is press-fitted to impart sealing ability, the second extended portion of a second sealing member is pressed to the opening portion side o... | 01/11/2011 |
| 7398692 | Sealing ring and its managing system An object of the present invention is to make it possible to accurately and simply manage the performance deterioration and life duration of sealing rings and other various information about each sealing ring. As a means of achieving this object, a sealing ring acco... | 07/15/2008 |
| 7326488 | Diffusion film, electrode having the diffusion film, and process for producing diffusion film A diffusion membrane contains uncalcined polytetrafluoroethylene (PTFE), calcined PTFE and a conductive substance. An electrode has the diffusion layer (membrane) and a catalyst layer disposed thereon. A process for producing diffusion membranes comprises dispersing... | 02/05/2008 |
| 7306237 | Sealing material for ant groove There is disclosed a sealing material for an ant groove, wherein the sealing material is easy to fit to the ant groove and little involves a phenomenon such that the sealing material unfavorably slips out of the ant groove in the form of remaining fixing to the oppo... | 12/11/2007 |
| 7270875 | Gland packing A gland packing characterized in that a water swelling mineral is stuck or impregnated into a surface or an inner part of a gland packing base material. The water swelling mineral is preferably water swelling mica. This gland packing substantially eliminates seizing... | 09/18/2007 |
| 7236348 | Functional sheet having reinforcing material A reinforcing material-having functional sheet of a sheet-like functional material including a functional powder and a binder resin and, laminated thereon, a reinforcing sheet comprising a woven fabric or a non-woven fabric, which are bonded, wherein the basis weigh... | 06/26/2007 |
| 7011312 | Gland packing and sealing apparatus comprising it To provide a novel gland packing and a sealing apparatus comprising this, wherein the gland packing displays high and stable sealability for a stem and an inner wall surface of a stuffing box even for uses further requesting the movability (rotation and reciprocatin... | 03/14/2006 |
| 7004474 | Seal for an endless track A seal for an endless track has a cross section having a centerline parallel to an axis of the seal and a configuration symmetric with respect to the centerline of the cross section. The seal can include an elastically deformably configured portion having a cross se... | 02/28/2006 |
| 6783129 | Sealing device A seal device (31) for a bearing system (21) is constituted by first and second seal rings (32) and (35). The first seal ring (32) is constituted by a lip seal (33) having a lip portion (33B) in sliding contact with a... | 08/31/2004 |
| 5510176 | Polytetrafluoroethylene porous film The polytetrafluoroethylene (PTFE) porous film of the invention is characterized in that the film is formed from a PTFE resin molding powder obtained by suspension polymerization and has a porosity of 40 to 80%, and removal ratio of uniform particle havin... | 04/23/1996 |
| 5469128 | Circuit elements for microwave and millimeter-wave bands and method of producing same A circuit element for microwave and millimeter-wave bands and a method of producing the same. A dielectric line is made of a pure dielectric resin. A high-frequency wave absorbing member is made of a pure dielectric resin containing at least one of first,... | 11/21/1995 |
| 5397418 | Method of fusion bonding of a mark plate A method of fusion bonding of a mark plate places a mark plate, having a heat-melt portion formed on at least a part of a front surface-outer peripheral portion, a side surface and a back surface-outer peripheral portion, the heat-melt portion being made ... | 03/14/1995 |
| 5358678 | Polytetrafluoroethylene porous film and process for preparing the same A polytetrafluoroethylene (PTFE) porous film is formed from a PTFE resin molding powder obtained by suspension polymerization. The film has a porosity of 40 to 80% and a removal ratio of uniform particles having a diameter of 0.2 μm less than 99%, or has... | 10/25/1994 |
| 5110526 | Process for producing molded articles of polytetrafluoroethylene resin In accordance with the present invention, there is provided a process for producing polytetrafluoroethylene (PTFE) resin molded articles, wherein an unsintered PTFE resin paste extrusion molded article as extruded from an extrusion machine and inserted in... | 05/05/1992 |
| 5102861 | Superconductive materials implanted with phosphorus ions and process for preparing the same Improvement in the superconducting transition temperature of superconductive materials which have perovskite structure or similar structure to perovskite such as typically Y-Ba-Cu-O type perovskite compounds is obtained by implanting phosphorus ion in the... | 04/07/1992 |
| 4950530 | Clutch facing In a generally annular clutch facing comprising a fibrous substrate embedded in a matrix of a cross-linked polymeric binder, the improvement in which said fibrous substrate comprises 100 parts by weight of rock wool, from 10 to 50 parts by weight of organ... | 08/21/1990 |
