- All sections
- G - Physics
- G02B - Optical elements, systems or apparatus
- G02B 7/28 - Systems for automatic generation of focusing signals
Patent holdings for IPC class G02B 7/28
Total number of patents in this class: 1548
10-year publication summary
|
152
|
139
|
149
|
104
|
95
|
83
|
86
|
45
|
39
|
5
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| FUJIFILM Corporation | 30012 |
251 |
| Sony Corporation | 30654 |
107 |
| Canon Inc. | 41507 |
90 |
| Canon Kabushiki Kaisha | 7205 |
87 |
| Nikon Corporation | 7269 |
86 |
| Olympus Corporation | 13058 |
79 |
| Panasonic Corporation | 19901 |
62 |
| Sony Group Corporation | 14803 |
46 |
| Samsung Electronics Co., Ltd. | 150751 |
32 |
| Panasonic Intellectual Property Management Co., Ltd. | 32838 |
27 |
| LG Innotek Co., Ltd. | 8008 |
23 |
| Hamamatsu Photonics K.K. | 4554 |
16 |
| Sony Semiconductor Solutions Corporation | 10998 |
15 |
| Qualcomm Incorporated | 88424 |
13 |
| Apple Inc. | 56830 |
12 |
| OM Digital Solutions Corp. | 597 |
12 |
| Ricoh Company, Ltd. | 13362 |
11 |
| Sony Olympus Medical Solutions Inc. | 377 |
11 |
| Leica Biosystems Imaging, Inc. | 262 |
10 |
| SZ DJI Technology Co., Ltd | 6875 |
10 |
| Other owners | 548 |