with a non-magnetic core

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Patents Grantslast 30 patents

Information Patent Grant
Magnetic tape, magnetic tape cartridge, and magnetic tape apparatus
- Patent number 12,051,448
- Issue date Jul 30, 2024
- FUJIFILM Corporation
- Noriko Oyanagi
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic powder, manufacturing method of magnetic powder, and magne...
- Patent number 10,971,182
- Issue date Apr 6, 2021
- FUJIFILM Corporation
- Takashi Fujimoto
- G11 - INFORMATION STORAGE
Information Patent Grant
Method of providing hexagonal ferrite magnetic powder with enhanced...
- Patent number 5,686,137
- Issue date Nov 11, 1997
- Kabushiki Kaisha Toshiba
- Etsuji Ogawa
- G11 - INFORMATION STORAGE
Information Patent Grant
3654161
- Patent number 3,654,161
- Issue date Apr 4, 1972
- G11 - INFORMATION STORAGE
Information Patent Grant
3115470
- Patent number 3,115,470
- Issue date Dec 24, 1963
- C01 - INORGANIC CHEMISTRY
Information Patent Grant
2582590
- Patent number 2,582,590
- Issue date Jan 15, 1952
- G11 - INFORMATION STORAGE