Celebrity Inventors
Glam girl Heddy Lamar may have used her good looks to good effect on the silver screen, but she put her smarts to better use as an inventor. During World War II, she co-patented a frequency-switching system for torpedo guidance that was considered years ahead of its time.
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| Number | Title | Issue Date |
| 7402350 | Highly tetrahedral amorphous carbon coatings and systems and methods for their production The invention provides systems and methods for the deposition of an improved diamond-like carbon material, particularly for the production of magnetic recording media. The diamond-like carbon material of the present invention is highly tetrahedral, that is, it featu... | 07/22/2008 |
| 7141319 | Method for processing the surface of an insulating article, printer head and substrate for recording medium A surface processing method for processing the surface of an insulating article in which an ion-implanted surface-modified layer is effectively formed on the article 2. In surface processing the article 2 of an insulating material, an electrically cond... | 11/28/2006 |
| 7026064 | Polyester film and method for producing the same The present invention provides a polyester film particularly useful as a base film for a magnetic recording medium such as cassette-type magnetic tape of a digital recording mode and a production process thereof. The polyester film is produced by irradiating UV ligh... | 04/11/2006 |
| 6635338 | Magnetic recording tape and method for manufacturing the same A magnetic recording tape having improved durability and capable of conducting recording and reproduction of data with high reliability, and a method for manufacturing the same are provided. The magnetic recording tape comprises a substrate having a thick... | 10/21/2003 |
| 5281472 | Surface-treated polyester film A polyester film having on at least one side, a primer layer comprising a crosslinked product between (a) a polyurethane having (0.22-33)×10-4 gram equivalent/gram of resin, of at least one functional group selected from a carboxyl group and a... | 01/25/1994 |
| 5242756 | Polyester film having improved adhesion properties The biaxially stretch oriented, corona-treated polyester film, in particular polyethylene terephthalate film, is suitable as a base film for magnetic coatings. It exhibits the following features: at least one of its two surfaces exhibits a surface tension... | 09/07/1993 |
| 5128206 | Composite polyester films as final coating supports The invention relates to orientated composite polyester films carrying, on at least one face, a coating intended to improve the slip properties, consisting of a graft polymer comprising a backbone derived from a polyester containing sulphonyloxy groups an... | 07/07/1992 |
| 5114739 | Process of manufacturing a polyester film with nodule surface A polyester film having a nodule surface is disclosed. The acrylic coating is preferably a crosslinked composition having a relatively high methyl methacrylate content and specific surfactants. The acrylic coating composition is applied as an aqueous disp... | 05/19/1992 |
| 5082730 | Stretched polyester film having an antistatic coating comprising a polymer having pyrrolidium rings in the main chain Disclosed herein are a stretched antistatic laminate film comprising at least one coating layer containing a polymer having pyrrolidium rings in the main molecular chain, and a polyester film layer, a magnetic recording medium using the same, and a record... | 01/21/1992 |
| 4795672 | Magnetic recording medium Disclosed herein is a magnetic recording medium comprising a substrate polyester film having on both sides or one side thereof a coating layer comprising a polyurethane having anionic group or a mixture of a polyurethane having anionic group and a polyest... | 01/03/1989 |
| 4775593 | Flexible magnetic recording media having superior peel strength A flexible magnetic recording media having superior peel strength is disclosed. The magnetic recording media comprises a primer coated polyester film which has been overcoated with a coating comprising ferromagnetic particles dispersed in a polymeric bind... | 10/04/1988 |
| 4749617 | Composite article containing rigid layers An article having two rigid layers joined by an aziridine-containing layer is provided.... | 06/07/1988 |
| 4732814 | Polyester film with smooth and highly adhesive surface and method of making same Disclosed is a biaxially stretched polyester film having a modified surface with an excellent bondability, in which both the surface smoothness and the slip characteristic, which are contradictory to each other, are satisfactory. This biaxially stretched ... | 03/22/1988 |
| 4717623 | Radiation-curable coating compositions applied to fluorine-treated surfaces A method is disclosed for increasing the adhesion of a radiation-curable coating composition to a surface which comprises treating the surface with a fluorine-containing gas before application of the coating and curing the coating composition by exposure ... | 01/05/1988 |
| 4699847 | Magnetic recording medium In a magnetic recording medium comprising a plastic base film and a magnetic layer, the base film is plasma treated at frequencies in the range of 10 kHz to 200 kHz in an inorganic gas containing at least 5% of oxygen. The magnetic layer is formed on the ... | 10/13/1987 |
| 4699845 | Easily-adhesive polyester film The present invention relates to an easily-adhesive polyester film comprising a polyester base film and a coating layer formed on one surface of the polyester base film, the coating layer comprising a mixture composed mainly of a higher fatty acid wax and... | 10/13/1987 |
| 4670319 | Polyester film for magnetic recording media A biaxially oriented polyester film for use in thin metallic film-type magnetic recording media, said polyester film having a first surface to which a thin metallic film as a magnetic recording layer is to be applied and a second surface coated with an ea... | 06/02/1987 |
| 4575475 | Magnetic recording medium In a magnetic recording medium comprising a plastic base film and a magnetic layer formed thereon, the base film is plasma treated at frequencies in the range of 10 kHz to 200 kHz in an inorganic gas such as argon and nitrogen and preferably, in an inorga... | 03/11/1986 |
| 4568600 | Thermoplastic resin base film for magnetic recording medium A thermoplastic resin base film for a magnetic recording medium including a thermoplastic resin film and a discontinuous film adhering closely to at least one surface of the thermoplastic resin film. The discontinuous film has a thickness of not larger th... | 02/04/1986 |
| 4564549 | Magnetic recording media and process for fabricating the same A thin film of a ferromagnetic metal or alloy and containing oxygen is formed over the surface of an elongated polyester film, said surface being formed with worm-like or particle-like projections consisting of cured high-molecular weight compounds.... | 01/14/1986 |
| 4548855 | Polyester film for magnetic recording medium Disclosed is a polyester film for a magnetic recording medium, which is comprised of a polyester film, a discontinuous film layer or layers adhering closely to one surface or both the surfaces of the polyester film, and fine particles present in the disco... | 10/22/1985 |
| 4439479 | Slippery biaxially stretched polyester films A process for producing a slippery biaxially stretched polyester film, which comprises coating one or both surfaces, preferably one surface, of a running polyester film, before the completion of its crystalline orientation, with an aqueous solution or dis... | 03/27/1984 |
| 4233352 | Polyester film and method of manufacture thereof A slippery and smooth-surfaced polyester film, at least one surface of which is covered with worm-like nodules, useful as a base film for high recording density magnetic tape.... | 11/11/1980 |
| 3967025 | Magnetic recording material A magnetic recording material formed from a base film of a crystalline polymer and having a magnetic layer coated on one surface of the base film which is sufficiently smooth to prevent the occurrence of dropout and the other surface of the film being fin... | 06/29/1976 |
