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Patent applications and USPTO patent grants for HOYA CORPORATION HOYA MAGNETICS SINGAPORE PTE. LTD.The latest application filed is for "magnetic disk and magnetic disk manufacturing method".
Patent | Date |
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Magnetic disk and magnetic disk manufacturing method App 20070128471 - Moroishi; Keiji ;   et al. | 2007-06-07 |
Magnetic recording medium App 20050208341 - Morikawa, Takashi ;   et al. | 2005-09-22 |
Magnetic recording medium App 20040219394 - Kawai, Hisao ;   et al. | 2004-11-04 |
Magnetic disk and method of producing the same App 20040213949 - Umezawa, Teiichiro ;   et al. | 2004-10-28 |
Magnetic recording medium App 20030152810 - Kawai, Hisao ;   et al. | 2003-08-14 |
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