Patent holdings for IPC class G11B 33/02

Total number of patents in this class: 613

10-year publication summary

47
75
80
49
41
38
40
32
33
19
2016 2017 2018 2019 2020 2021 2022 2023 2024 2025

Principal owners for this class

Owner
All patents
This class
JPMorgan Chase Bank, National Association
8614
44
Toshiba Corporation
12540
39
Seagate Technology LLC
3975
39
Toshiba Electronic Devices & Storage Corporation
2097
32
Nidec Corporation
2698
16
Mitsubishi Electric Corporation
46870
14
Hewlett Packard Enterprise Development LP
10768
13
International Business Machines Corporation
61734
12
Hewlett-Packard Development Company, L.P.
25592
12
Quanta Computer Inc.
1378
12
Wistron Corporation
2364
11
Panasonic Corporation
19969
10
Sony Interactive Entertainment Inc.
6038
9
Fulian Precision Electronics (Tianjin) Co., Ltd.
531
9
Samsung Electronics Co., Ltd.
148924
8
Panasonic Intellectual Property Management Co., Ltd.
32352
8
Dell Products L.P.
15303
8
NHK Spring Co., Ltd.
1910
8
Utility Associates, Inc.
52
8
Fujitsu Limited
17674
7
Other owners 294