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| Number | Title | Issue Date |
| 6822208 | Microwave door with viewing window The microwave unit door includes a metallic door frame (1) with an interior glass pane (3) and outer glass pane (2) held spaced apart in it. To improve the observability of the interior of the microwave unit without loosing the microwave shieldi... | 11/23/2004 |
| 6605266 | Use and process for production of nanotubes Separable nanotubes are made from a transition metal oxide, preferably from a vanadium oxide of variable valence. They show a greater oxidation resistance than the carbon-based nanotubes known so far and offer many new and economic applications. The inven... | 08/12/2003 |
| 6054848 | Method and apparatus for detecting electromagnetic waves A detector facilitates visualization of electromagnetic radiation, including radio frequency radiation. The electromagnetic radiation is converted to thermal energy by partial absorption of the radiation, and is made visually observable by coupling the pa... | 04/25/2000 |
| 5981927 | High visibility microwave oven door with screen and microwave absorbing material A microwave oven comprises a cabinet and a door attached to the cabinet to form a food processing chamber. The door has a screen, an absorbing film, and a frame. The screen reflects microwave energy away from the absorbing film, the screen has a plurality... | 11/09/1999 |
| 5965056 | Radio wave absorbent A radio wave absorbent comprises an Ni--Cu--Zn base ferrite having a major composition comprising 49 to less than 50 mol % of Fe2 O3, 32 to 35 mol % of ZnO, 3 to 9 mol % of CuO and 9 to 14 mol % of NiO. The radio wave absorbent furth... | 10/12/1999 |
| 5897808 | Microwave oven door with microwave leakage seal A microwave oven includes a main body forming a cooking chamber, and a door hinged to the main body. A rear side of the door includes an endless choke groove and a sealing member surrounding the choke groove. The sealing member is biased by a spring into ... | 04/27/1999 |
| 5824999 | Microwave leakage-preventing device for a microwave oven A microwave oven door includes a shielding panel, which is made of a material through which microwaves cannot pass, having a contact section that opposes a front panel of the oven when the door is closed. A plurality of slits arranged in the contact secti... | 10/20/1998 |
| 5767492 | Tunnel oven for cooking food, including a device for connecting two tunnel oven segments A connection device for two successive segments (1A, 1B) of a tunnel oven for cooking food, comprises a first sleeve (16A) fixed to the frame (18) of the tunnel and second sleeve (17) secured to the tunnel segments (1A, 1B). The second sleeve (17) is moun... | 06/16/1998 |
| 5500235 | Method for making a microwavable, expandable package The method of forming a microwaveable package, generally from a plurality of liners of material, and incorporating a heat-assist layer preferably intermediately of the liners of material, which said heat assist material comprising powdered carbon, that is... | 03/19/1996 |
| 5324887 | Screen printed of mask printed microwave absorbing material on module lids to suppress EMI An absorber for a microwave module and method of fabrication thereof wherein an ink is provided from a mixture of powdered iron and a resin. The ink is then screen printed or mask printed onto the interior surface of the lid of the microwave module in a p... | 06/28/1994 |
| 5321223 | Method of sintering materials with microwave radiation A method of sintering ceramic materials following: A compacted article comprising inorganic particles coated with carbon is provided, the carbon providing improved microwave coupling. The compacted article is then heated by microwave radiation to a temper... | 06/14/1994 |
| 5304766 | Methods and apparatus for simultaneously treating a plurality of samples in a moist medium A plurality of samples in a moist medium are treated simultaneously in a microwave cavity. The samples are conducted into the cavity through apertures formed in an upper wall of the cavity. Each aperture is surrounded by a chimney configured to create a b... | 04/19/1994 |
| 5272302 | Microwave oven with improved cooking uniformity A microwave oven having microwave absorbing material disposed in a top portion of the microwave oven cooking cavity above a grease shield. By absorbing reflected microwave radiation, this feature reduces the tendency of overcooked edges, particularly in l... | 12/21/1993 |
| 5258596 | Microwave absorber designs for metal foils and containers Means and method for heating loads with microwave energy, with the loads being located on a metal substrate or in a metal container. A layer of organic material is located on the outside surface of the container or substrate, the layer having microwave ab... | 11/02/1993 |
| 5254821 | Selectively microwave-permeable membrane susceptor systems A selectively permeable membrane microwave susceptor for use in food packaging is disclosed. The susceptor comprises a substrate having at least one absorbing coating and at least one reflecting coating deposited thereon. Either one or both of the absorbi... | 10/19/1993 |
| 5107070 | Dual elastomer gasket for protection against magnetic interference An improved gasket shielding against magnetic waves is provided in the form of an integral two-layer component including a support layer and a cover layer, the support layer being strong and having excellent physical properties, and the cover layer being ... | 04/21/1992 |
| 5068493 | Dual elastomer gasket shield for electronic equipment An improved gasket shielding for electronic equipment is provided in the form of an integral two-layer component including a support layer and a cover layer, the support layer being strong and having excellent physical properties, and the cover layer bein... | 11/26/1991 |
| 5045638 | Apparatus for shielding electromagnetic radiation This invention relates to an apparatus for shielding electromagnetic radiation which includes a casing made primarily of electromagnetic shielding material and an electromagnetic wave suppressor member having high permeability and/or permittivity. A metho... | 09/03/1991 |
| 4960633 | Microwave-absorptive composite A microwave absorptive composite suitable for use in ships, aircrafts and the like comprises an outermost layer of a thermosetting resin-impregnated, fibrous sheet; an intermediate layer of a normally liquid, carbonblack-containing silicone rubber sheet; ... | 10/02/1990 |
| 4923736 | Multi-layered microwave absorber and method of manufacturing the same A multi-layered microwave absorber suitable for use in ships, aircrafts and the like comprises a plurality of layers differing in impedance which are bonded together into an integral sheet structure by a silicone-type adhesive compound applied to a coat t... | 05/08/1990 |
| 4912143 | Resin composition for absorbing electromagnetic waves A resin composition containing potassium based single crystal fibers for absorbing electromagnetic waves.... | 03/27/1990 |
| 4868358 | Implement for preventing leakage of waves from microwave oven There is disclosed an implement for preventing microwaves from leaking from the housing of a microwave oven. The implement is made from a synthetic resin and mounted inside the oven. One example of the implement consists of polymethylpentene molded into a... | 09/19/1989 |
| 4861955 | Matched absorptive end choke for microwave applicators A microwave application chamber including a reactive and absorptive choke is shown and described. The absorptive choke is made of a material having the same or close dielectric constant as the material being treated so that microwave energy will pass read... | 08/29/1989 |
| 4822968 | Electromagnetic energy seal for a microwave oven An electromagnetic energy seal for a microwave oven includes a seal plate fixed on an inner wall of a door frame of the oven which is adapted to form an opening. From an upper end of an outer wall of the door frame, an inwardly bent member is extended. Al... | 04/18/1989 |
| 4785148 | Broad-band absorptive tape for microwave ovens Absorptive tape or gasket for microwave ovens, set up in the leakage path of microwave energy, and filling at least partially such passage, consisting in an absorptive magnetic compound: where the compound consists in a powder or mixture of powders of ferrites... | 11/15/1988 |
| 4735513 | Flexible packaging sheets A flexible sheet structure is described which comprises a base sheet having a microwave coupling layer, e.g. electrodeposited aluminum as an island covering a selected area of the sheet. The uncoated portions will not be heated and will not be damaged by ... | 04/05/1988 |
| 4711982 | Plastic microwave oven door A microwave oven door is disclosed having a channel cross-section and formed of plastic material having a microwave impermeable viewing window, hinge means, door securing means, and a microwave impermeable coating in the channel cross-section area. An alt... | 12/08/1987 |
| 4689460 | Absorber device for microwave leakage A microwave absorber device for a microwave heater having a chamber for cooking with an opening, and a door for closing the opening with a small gap which is a leakage path between the door and the wall of the chamber. The door is provided with a choke ca... | 08/25/1987 |
| 4681740 | Apparatus for the chemical reaction by wet process of various products The present invention relates to an apparatus for the chemical reaction of compounds, wherein said apparatus comprises: sample container means having an enlarged sample containing portion at a lower end thereof and an upwardly extending neck portion, a ho... | 07/21/1987 |
| 4602141 | Device for preventing electromagnetic wave leakage for use in microwave heating apparatus A device for preventing electromagnetic wave leakage from gaps between the body of a microwave heating device and the door thereof. The device is configured using an electromagnetic absorber consisting of a mixture obtained by mixing ferrite powder and ca... | 07/22/1986 |
| 4577079 | Door of microwave oven A door of a microwave oven comprises a frame-like door plate having a central window, upper and lower sashes secured to the door plate, a screen to cover the central window, outer and inner barriers for protecting the screen, and a contact plate to be bro... | 03/18/1986 |
| 4570045 | Conveyorized microwave heating chamber with dielectric wall structure Apparatus (11, 11a, 11b, 11c) for heating substances (16, 16a, 16b, 16c) with microwave energy has a microwave containment housing (12, 12a) formed at least in part of thick microwave absorbent dielectric material (39, 39a, 39b) such as concrete or cerami... | 02/11/1986 |
| 4559428 | Oven door with integral choke mechanism and microwave absorber An oven door in a microwave oven contains a door frame having a choke mechanism formed therein. A choke cover for covering the choke mechanism is secured to the door frame. The choke cover is made of a wave absorbing material. A portion of the choke cover... | 12/17/1985 |
| 4525614 | Absorber device for microwave leakage A microwave absorber device for a microwave heater having a main body with an opening and a door for closing said opening with a leakage path between the door and the main body. The absorber device has a choke cavity along a leakage path of the microwave ... | 06/25/1985 |
| 4518651 | Microwave absorber A flexible composite material is disclosed which exhibits a controlled absorption of microwave energy based on presence of particulate carbon in a polymeric matrix bound to a porous substrate. The material is used in packages for microwave cooking. A proc... | 05/21/1985 |
| 4517026 | Method of backside heating a semiconductor substrate in an evacuated chamber by directed microwaves for vacuum treating and heating a semiconductor substrate A semiconductor substrate arranged in a vacuum treating chamber is heated by using microwaves. The chamber is provided with a window plate pervious to microwaves, and the substrate is mounted on the window plate. A microwave generator is arranged outside ... | 05/14/1985 |
| 4488027 | Leakage suppression tunnel for conveyorized microwave oven A conveyorized microwave oven having two leakage suppression tunnels in series wherein the first tunnel includes a microwave choke and a second tunnel has a ferromagnetic layer covered with a smooth microwave transparent sheet. The choke tunnel presents a... | 12/11/1984 |
| 4311520 | Process for the recovery of nickel, cobalt and manganese from their oxides and silicates A process for the recovery of nickel, cobalt or manganese from their oxides or silicates wherein such process, which requires the application of heat, is improved by utilizing microwave energy as the source of heat. The microwave energy may be utilized to... | 01/19/1982 |
| 4281072 | Amorphous complexes of polythioethers with salts A polymeric material which comprises an amorphous solid solution formed between a metallic compound and a polymer by virtue of ether, thioether or urethane linkages contained therein, the metal of the metallic compound being selected from the group consis... | 07/28/1981 |
| 4176267 | Microwave energy trap A microwave energy trap for use in conjunction with the exit and entrance ports of a conveyorized microwave oven. The energy trap operates to prevent the escape of microwave energy through the ports into the surrounding environment. The energy trap compri... | 11/27/1979 |
