- All sections
- G - Physics
- G11B - Information storage based on relative movement between record carrier and transducer
- G11B 5/65 - Record carriers characterised by the selection of the material comprising only the magnetic material without bonding agent characterised by its composition
Patent holdings for IPC class G11B 5/65
Total number of patents in this class: 526
10-year publication summary
54
|
47
|
42
|
35
|
26
|
18
|
20
|
14
|
12
|
2
|
2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
Owner |
All patents
|
This class
|
---|---|---|
Showa Denko K.K. | 2539 |
63 |
Fuji Electric Co., Ltd. | 4750 |
52 |
JPMorgan Chase Bank, National Association | 10964 |
51 |
Seagate Technology LLC | 4228 |
38 |
Resonac Corporation | 2233 |
38 |
Sony Corporation | 32931 |
22 |
JX Nippon Mining & Metals Corporation | 1576 |
20 |
Hoya Corporation | 2822 |
19 |
WD Media (Singapore) Pte. Ltd. | 28 |
15 |
Tohoku University | 2526 |
14 |
Kabushiki Kaisha Toshiba, doing business as Toshiba Corporation | 6275 |
13 |
FUJIFILM Corporation | 27102 |
11 |
Tanaka Kikinzoku Kogyo K.K. | 589 |
10 |
Hoya Magnetics Singapore Pte. Ltd. | 18 |
10 |
Toshiba Corporation | 12017 |
9 |
Gula Consulting Limited Liability Company | 383 |
9 |
Sony Group Corporation | 10730 |
9 |
ULVAC, Inc. | 1448 |
8 |
Hitachi, Ltd. | 16452 |
6 |
Japan Science and Technology Agency | 1564 |
6 |
Other owners | 103 |