Tokyo
Japan
30
2026-03-19
The entities that hold a legal rights for patent applications filed by inventor Hatakeyama Hideyuki:
Hideyuki Hatakeyama from Tokyo, JP has applied for patents for these inventions. The list has both pending applications and granted patents:
SUBSTRATE FOR MAGNETIC DISK AND METHOD FOR MANUFACTURING SAME, AND MAGNETIC DISK
#2 | 2025-07-03MAGNETIC DISK AND SUBSTRATE FOR MAGNETIC DISK
#3 | 2024-12-19METHOD FOR PRODUCING ALUMINUM ALLOY RAW MATERIAL, METHOD FOR PRODUCING ALUMINUM ALLOY INGOT, METHOD FOR PRODUCING ALUMINUM ALLOY PLATE, METHOD FOR PRODUCING ALUMINUM ALLOY SUBSTRATE FOR PLATING, METHOD FOR PRODUCING ALUMINUM ALLOY SUBSTRATE FOR MAGNETIC DISK, METHOD FOR PRODUCING MAGNETIC DISK, AND MAGNETIC DISK
#4 | 2024-11-07SUBSTRATE FOR MAGNETIC DISK, MANUFACTURING METHOD THEREOF, AND MAGNETIC DISK
#5 | 2024-10-24MAGNETIC DISK SUBSTRATE AND MAGNETIC DISK USING THE SAME
#6 | 2024-07-11MAGNETIC DISK DEVICE AND METHOD FOR MANUFACTURING MAGNETIC DISK DEVICE
#7 | 2024-05-23Impact resistant magnetic disk device and method for manufacturing impact resistant magnetic disk device
#8 | 2024-04-25MAGNETIC DISK DEVICE AND METHOD FOR MANUFACTURING MAGNETIC DISK DEVICE
#9 | 2024-04-11Thin substrate built-in hard disk drive and base plate member for thin substrate built-in hard disk drive
#10 | 2024-01-18Aluminum alloy substrate for magnetic disc and magnetic disc
#11 | 2024-01-18ALUMINUM ALLOY DISC BLANK FOR MAGNETIC DISC AND MAGNETIC DISC
#12 | 2024-01-04Magnetic disk device
#13 | 2023-10-19Aluminum alloy disc blank for magnetic disc and magnetic disc
#14 | 2023-07-27MAGNETIC DISK SUBSTRATE AND MAGNETIC DISK USING MAGNETIC DISK SUBSTRATE
#15 | 2023-04-13ALUMINUM ALLOY SUBSTRATE FOR MAGNETIC DISKS, AND MAGNETIC DISK USING SAID ALUMINUM ALLOY SUBSTRATE FOR MAGNETIC DISKS
#16 | 2021-11-18Aluminum alloy substrate for magnetic disk and method for manufacturing same, aluminum alloy base disk for magnetic disk and method for manufacturing same, and magnetic disk and method for manufacturing the same
#17 | 2021-10-14Aluminum alloy sheet for magnetic disk and production method therefor, and magnetic disk using said aluminum alloy sheet for magnetic disk
#18 | 2021-08-26Aluminum alloy sheet for magnetic disk and production method therefor, and magnetic disk using said aluminum alloy sheet for magnetic disk
#19 | 2021-07-01Aluminium alloy substrate for magnetic disk, method for fabricating the same, and magnetic disk composed of aluminium alloy substrate for magnetic disk
#20 | 2021-03-04Aluminum alloy substrate for magnetic disk, method for producing the same, and magnetic disk using aluminum alloy substrate for magnetic disk
#21 | 2021-02-18Magnetic disk substrate, method for manufacturing same and magnetic disk
#22 | 2021-01-14Magnetic disc, aluminum alloy substrate for magnetic disc, and production method for aluminum alloy substrate
#23 | 2020-12-03Aluminum-alloy substrate for magnetic disk, method for manufacturing same and magnetic disk employing said aluminum-alloy substrate for magnetic disk
#24 | 2020-12-03Aluminum alloy substrate for magnetic disks, method for producing same, and magnetic disk using this aluminum alloy substrate for magnetic disks
#25 | 2020-11-19ALUMINUM ALLOY SUBSTRATE FOR MAGNETIC DISKS, METHOD FOR PRODUCING SAME, AND MAGNETIC DISK WHICH USES SAID ALUMINUM ALLOY SUBSTRATE FOR MAGNETIC DISKS
#26 | 2019-12-26Aluminum alloy magnetic disk substrate and method for producing same
#27 | 2019-02-28SUBSTRATE FOR A MAGNETIC DISK
#28 | 2016-02-11METAL MEMBER FOR MAGNETIC STORAGE MEDIUM AND MAGNETIC STORAGE MEDIUM
#29 | 2015-01-22SUPERCONDUCTING WIRE
#30 | 2012-09-20SUBSTRATE FOR OXIDE SUPERCONDUCTOR AND PROCESS FOR PRODUCING SAME, AND OXIDE SUPERCONDUCTOR AND PROCESS FOR PRODUCING SAME
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