- All sections
- G - Physics
- G11B - Information storage based on relative movement between record carrier and transducer
- G11B 5/73 - Base layers
Patent holdings for IPC class G11B 5/73
Total number of patents in this class: 864
10-year publication summary
|
60
|
52
|
61
|
53
|
50
|
63
|
89
|
63
|
68
|
23
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Hoya Corporation | 2822 |
178 |
| JPMorgan Chase Bank, National Association | 10964 |
70 |
| FUJIFILM Corporation | 27102 |
66 |
| The Furukawa Electric Co., Ltd. | 3486 |
50 |
| UACJ Corporation | 631 |
50 |
| Sony Corporation | 32931 |
47 |
| Resonac Corporation | 2233 |
46 |
| Seagate Technology LLC | 4228 |
38 |
| Konica Minolta Opto, Inc. | 1179 |
31 |
| Sony Group Corporation | 10730 |
29 |
| Showa Denko K.K. | 2539 |
27 |
| Fuji Electric Co., Ltd. | 4750 |
18 |
| Asahi Glass Company, Limited | 2985 |
15 |
| Agc, Inc. | 4029 |
15 |
| International Business Machines Corporation | 60644 |
11 |
| Konica Minolta Advanced Layers, Inc. | 218 |
11 |
| Western Digital Technologies, Inc. | 1043 |
11 |
| Hoya Glass Disk Vietnam II Ltd. | 13 |
10 |
| Toray Industries, Inc. | 6652 |
9 |
| Toshiba Corporation | 12017 |
8 |
| Other owners | 124 |