- All sections
- G - Physics
- G11B - Information storage based on relative movement between record carrier and transducer
- G11B 5/02 - Recording, reproducing or erasing methods; Read, write or erase circuits therefor
Patent holdings for IPC class G11B 5/02
Total number of patents in this class: 976
10-year publication summary
|
126
|
84
|
57
|
38
|
22
|
34
|
43
|
20
|
28
|
3
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Seagate Technology LLC | 4228 |
158 |
| JPMorgan Chase Bank, National Association | 10964 |
140 |
| Toshiba Corporation | 12017 |
67 |
| Avago Technologies International Sales Pte. Limited | 9260 |
51 |
| Marvell Asia PTE, Ltd. | 6841 |
42 |
| Cavium International | 5549 |
42 |
| TDK Corporation | 6306 |
35 |
| Konica Minolta Opto, Inc. | 1179 |
34 |
| Texas Instruments Incorporated | 19376 |
30 |
| Seiko Instruments Inc. | 660 |
27 |
| International Business Machines Corporation | 60644 |
26 |
| Hitachi, Ltd. | 16452 |
22 |
| Toshiba Electronic Devices & Storage Corporation | 1602 |
20 |
| Headway Technologies, Inc. | 715 |
17 |
| Nidec Sankyo Corporation | 1117 |
15 |
| FUJIFILM Corporation | 27102 |
11 |
| Pioneer Corporation | 4843 |
8 |
| Showa Denko K.K. | 2539 |
8 |
| Sharp Kabushiki Kaisha | 18957 |
8 |
| Sony Corporation | 32931 |
7 |
| Other owners | 208 |