- All sections
- G - Physics
- G11B - Information storage based on relative movement between record carrier and transducer
- G11B 19/28 - Speed controlling, regulating or indicating
Patent holdings for IPC class G11B 19/28
Total number of patents in this class: 115
10-year publication summary
|
13
|
6
|
7
|
5
|
7
|
4
|
4
|
2
|
8
|
2
|
| 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 | 8546 |
19 |
| Rohm Co., Ltd. | 6414 |
12 |
| Seagate Technology LLC | 3968 |
10 |
| Toshiba Corporation | 12317 |
5 |
| Toshiba Electronic Devices & Storage Corporation | 1946 |
5 |
| Fujitsu Limited | 18354 |
4 |
| Samsung Electronics Co., Ltd. | 144675 |
3 |
| Pioneer Corporation | 4390 |
3 |
| Spectra Logic Corporation | 137 |
3 |
| JPMorgan Chase Bank, N.A., AS The Agent | 2441 |
3 |
| Matsushita Electric Industrial Co., Ltd. | 1752 |
2 |
| Hewlett-Packard Development Company, L.P. | 25933 |
2 |
| Koninklijke Philips Electronics N.V. | 9909 |
2 |
| Panasonic Intellectual Property Management Co., Ltd. | 31084 |
2 |
| STMicroelectronics S.r.l. | 3621 |
2 |
| Boe Technology Group Co., Ltd. | 40728 |
2 |
| Ordos Yuansheng Optoelectronics Co., Ltd. | 1268 |
2 |
| Qualcomm Incorporated | 84760 |
1 |
| International Business Machines Corporation | 61144 |
1 |
| Canon Inc. | 39618 |
1 |
| Other owners | 31 |