- All sections
- H - Electricity
- H01G - Capacitorscapacitors, rectifiers, detectors, switching devices, light-sensitive or temperature-sensitive devices of the electrolytic type
- H01G 4/18 - Organic dielectrics of synthetic material, e.g. derivatives of cellulose
Patent holdings for IPC class H01G 4/18
Total number of patents in this class: 456
10-year publication summary
|
58
|
66
|
42
|
24
|
17
|
16
|
13
|
17
|
17
|
12
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Panasonic Intellectual Property Management Co., Ltd. | 34265 |
56 |
| Toray Industries, Inc. | 7139 |
33 |
| Murata Manufacturing Co., Ltd. | 25809 |
29 |
| Kyocera Corporation | 14423 |
25 |
| Daikin Industries, Ltd. | 10502 |
24 |
| Oji Holdings Corporation | 800 |
22 |
| Capacitor Sciences Incorporated | 56 |
18 |
| Borealis AG | 2740 |
17 |
| Panasonic Corporation | 18849 |
16 |
| Rubycon Corporation | 79 |
10 |
| TDK Electronics AG | 1013 |
9 |
| Prime Polymer Co., Ltd. | 190 |
8 |
| SHPP Global Technologies B.V. | 1104 |
7 |
| Mitsui Chemicals, Inc. | 3259 |
6 |
| Hitachi Energy Ltd. | 2610 |
6 |
| Topas Advanced Polymers GmbH | 27 |
5 |
| Hitachi Chemical Company, Ltd. | 2236 |
4 |
| Sanyo Electric Co., Ltd. | 3392 |
4 |
| Carver Scientific, Inc. | 36 |
4 |
| DuPont Teijin Films U.S. Limited Partnership | 102 |
4 |
| Other owners | 149 |