- All sections
- G - Physics
- G11B - Information storage based on relative movement between record carrier and transducer
- G11B 23/087 - MagazinesCassettes for housing webs or filaments having two distinct ends using two different reels or cores
Patent holdings for IPC class G11B 23/087
Total number of patents in this class: 45
10-year publication summary
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0
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1
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1
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5
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3
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8
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6
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4
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4
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1
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| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| FUJIFILM Corporation | 29714 |
18 |
| JPMorgan Chase Bank, National Association | 8593 |
7 |
| Sony Group Corporation | 14351 |
6 |
| Sony Corporation | 30891 |
3 |
| International Business Machines Corporation | 61621 |
3 |
| Sony Semiconductor Solutions Corporation | 10722 |
3 |
| Seiko Epson Corporation | 19673 |
1 |
| Brother Industries, Ltd. | 12943 |
1 |
| Huawei Technologies Co., Ltd. | 114620 |
1 |
| Western Digital Technologies, Inc. | 1756 |
1 |
| Library of Congress | 7 |
1 |
| Other owners | 0 |