- All sections
- C - Chemistry; metallurgy
- C10N - Indexing scheme associated with subclass
- C10N 40/18 - Electric or magnetic purposes in connection with recordings on magnetic tape or disc
Patent holdings for IPC class C10N 40/18
Total number of patents in this class: 182
10-year publication summary
|
15
|
4
|
8
|
14
|
17
|
12
|
25
|
20
|
14
|
6
|
| 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 |
41 |
| Resonac Corporation | 2233 |
31 |
| Moresco Corporation | 151 |
22 |
| Dexerials Corporation | 1826 |
14 |
| FUJIFILM Corporation | 27102 |
9 |
| Asahi Glass Company, Limited | 2985 |
7 |
| WD Media (Singapore) Pte. Ltd. | 28 |
7 |
| Idemitsu Kosan Co., Ltd. | 3995 |
5 |
| JPMorgan Chase Bank, National Association | 10964 |
5 |
| Hoya Corporation | 2822 |
4 |
| Matsumura Oil Research Corp. | 4 |
3 |
| Nippon Thompson Co., Ltd. | 192 |
3 |
| Solvay Specialty Polymers Italy S.p.A. | 704 |
3 |
| University of Yamanashi | 270 |
3 |
| Ushio Chemix Corporation | 12 |
3 |
| Sony Corporation | 32931 |
2 |
| Seagate Technology LLC | 4228 |
2 |
| Western Digital Technologies, Inc. | 1043 |
2 |
| Nippon Steel Chemical Co., Ltd. | 179 |
2 |
| NOK Kluber Co., Ltd. | 54 |
2 |
| Other owners | 12 |