Patent holdings for IPC class G11B 27/00

Total number of patents in this class: 2454

10-year publication summary

236
254
257
234
163
161
144
118
79
26
2015 2016 2017 2018 2019 2020 2021 2022 2023 2024

Principal owners for this class

Owner
All patents
This class
Sony Corporation
32931
172
Pioneer Corporation
4843
90
Apple Inc.
50209
88
Matsushita Electric Industrial Co., Ltd.
4724
81
Panasonic Corporation
20786
79
GoPro, Inc.
1915
59
Mitsubishi Electric Corporation
43934
58
Google LLC
38759
52
Microsoft Technology Licensing, LLC
51439
51
LG Electronics Inc.
69257
48
Rovi Guides, Inc.
3236
41
Sharp Kabushiki Kaisha
18957
41
Samsung Electronics Co., Ltd.
131630
39
International Business Machines Corporation
60644
37
Canon Inc.
36841
37
Adobe Inc.
6700
37
Panasonic Intellectual Property Management Co., Ltd.
27812
29
Sonos, Inc.
2274
29
Intel Corporation
45621
21
Maxell, Ltd.
2533
21
Other owners 1344