- All sections
- G - Physics
- G11B - Information storage based on relative movement between record carrier and transducer
- G11B 7/244 - Record carriers characterised by the selection of the material of recording layers comprising organic materials only
Patent holdings for IPC class G11B 7/244
Total number of patents in this class: 136
10-year publication summary
|
3
|
1
|
1
|
2
|
6
|
10
|
6
|
4
|
1
|
1
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| FUJIFILM Corporation | 30653 |
21 |
| Panasonic Intellectual Property Management Co., Ltd. | 34403 |
21 |
| Sony Corporation | 30080 |
10 |
| Taiyo Yuden Co., Ltd. | 2046 |
9 |
| Nippon Kayaku Kabushiki Kaisha | 1471 |
6 |
| Ricoh Company, Ltd. | 13355 |
5 |
| Mitsubishi Kagaku Media Co., Ltd. | 17 |
5 |
| Adeka Corporation | 1386 |
5 |
| Mitsubishi Chemical Corporation | 4742 |
4 |
| Nippon Steel & Sumikin Chemical Co., Ltd. | 185 |
4 |
| Daikin Industries, Ltd. | 10509 |
3 |
| Dai Nippon Printing Co., Ltd. | 4263 |
3 |
| KH Neochem Co., Ltd. | 70 |
3 |
| Kyowa Hakko Chemical Co., Ltd. | 20 |
3 |
| National Institute of Advanced Industrial Science and Technology | 3790 |
2 |
| Daicel Corporation | 2557 |
2 |
| Dexerials Corporation | 2005 |
2 |
| Sony Group Corporation | 15934 |
2 |
| NEC Corporation | 37312 |
1 |
| Bayer MaterialScience AG | 703 |
1 |
| Other owners | 24 |