- All sections
- H - Electricity
- H04N - Pictorial communication, e.g. television
- H04N 3/23 - Distortion correction, e.g. for pincushion distortion correction, S-correction
Patent holdings for IPC class H04N 3/23
Total number of patents in this class: 35
10-year publication summary
|
3
|
3
|
0
|
0
|
1
|
0
|
1
|
0
|
0
|
0
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Seiko Epson Corporation | 19269 |
11 |
| Mssl Consolidated Inc. | 104 |
3 |
| Canon Inc. | 39442 |
2 |
| Fakespace Labs, Inc. | 13 |
2 |
| LG Electronics Inc. | 72473 |
1 |
| Sony Corporation | 31148 |
1 |
| Hewlett-Packard Development Company, L.P. | 25954 |
1 |
| Texas Instruments Incorporated | 19487 |
1 |
| Huawei Technologies Co., Ltd. | 110995 |
1 |
| Casio Computer Co., Ltd. | 3420 |
1 |
| JVC Kenwood Corporation | 2988 |
1 |
| Rockwell Collins, Inc. | 2484 |
1 |
| Microvision, Inc. | 327 |
1 |
| Tianma Micro-Electronics Co., Ltd. | 814 |
1 |
| Vecima Networks Inc. | 107 |
1 |
| Maxell Holdings, Ltd. | 1327 |
1 |
| Maxell, Ltd. | 2767 |
1 |
| Shanghai AVIC OPTO Electronics Co., Ltd. | 121 |
1 |
| Optimum Imaging Technologies LLC | 7 |
1 |
| Sharp NEC Display Solutions, Ltd. | 513 |
1 |
| Other owners | 1 |