Patent holdings for IPC class G11B 33/04

Total number of patents in this class: 225

10-year publication summary

14
11
18
13
26
30
11
12
14
5
2016 2017 2018 2019 2020 2021 2022 2023 2024 2025

Principal owners for this class

Owner
All patents
This class
International Business Machines Corporation
61537
11
JPMorgan Chase Bank, National Association
8586
11
MeadWestvaco Corporation
328
11
Seagate Technology LLC
3971
9
Toshiba Corporation
12500
6
Toshiba Electronic Devices & Storage Corporation
2043
6
FUJIFILM Corporation
29696
5
Panasonic Intellectual Property Management Co., Ltd.
32052
5
Amazon Technologies, Inc.
27003
5
Pozzoli S.p.A.
14
5
Spectra Logic Corporation
136
5
Scanavo A/S
14
5
Huawei Technologies Co., Ltd.
114071
4
Finest Products Limited
15
4
Alter Domus (US) LLC, AS Agent for The Secured Parties
208
4
Dell Products L.P.
14768
3
Sony Corporation
30921
2
ZTE Corporation
42752
2
Celestica Technology Consultancy (Shanghai) Co., Ltd.
38
2
Disc Graphics Inc.
8
2
Other owners 118