Patent holdings for IPC class G11B 5/54

Total number of patents in this class: 337

10-year publication summary

10
5
9
34
41
34
19
22
28
10
2016 2017 2018 2019 2020 2021 2022 2023 2024 2025

Principal owners for this class

Owner
All patents
This class
Toshiba Corporation
12376
77
JPMorgan Chase Bank, National Association
8569
75
Toshiba Electronic Devices & Storage Corporation
1989
72
Seagate Technology LLC
3970
39
Avago Technologies International Sales Pte. Limited
8739
6
Western Digital Technologies, Inc.
1764
5
Hutchinson Technology Incorporated
313
4
Magnecomp Corporation
201
4
JPMorgan Chase Bank, N.A., AS The Agent
2556
4
International Business Machines Corporation
61344
3
Renesas Electronics Corporation
6001
3
TDK Corporation
6782
3
SAE Magnetics (H.K.) Ltd.
329
3
STMicroelectronics S.r.l.
3605
3
Marvell Asia PTE, Ltd.
6532
3
Samsung Electronics Co., Ltd.
147003
2
STMicroelectronics KK
4
2
Benhov GmbH, LLC
23
2
Gula Consulting Limited Liability Company
298
2
NHK Spring Co., Ltd.
1871
2
Other owners 23