- 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: 1538
10-year publication summary
|
134
|
152
|
139
|
149
|
104
|
95
|
83
|
83
|
45
|
26
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| FUJIFILM Corporation | 29696 |
250 |
| Sony Corporation | 30921 |
108 |
| Canon Inc. | 40509 |
88 |
| Canon Kabushiki Kaisha | 7088 |
86 |
| Nikon Corporation | 7271 |
85 |
| Olympus Corporation | 13140 |
82 |
| Panasonic Corporation | 20036 |
62 |
| Sony Group Corporation | 14275 |
44 |
| Samsung Electronics Co., Ltd. | 147787 |
32 |
| Panasonic Intellectual Property Management Co., Ltd. | 32052 |
26 |
| LG Innotek Co., Ltd. | 7823 |
22 |
| Hamamatsu Photonics K.K. | 4464 |
16 |
| Sony Semiconductor Solutions Corporation | 10690 |
15 |
| Qualcomm Incorporated | 86648 |
13 |
| OM Digital Solutions Corp. | 605 |
13 |
| Apple Inc. | 55491 |
12 |
| Ricoh Company, Ltd. | 13386 |
11 |
| Sony Olympus Medical Solutions Inc. | 374 |
11 |
| Leica Biosystems Imaging, Inc. | 262 |
10 |
| SZ DJI Technology Co., Ltd | 6857 |
10 |
| Other owners | 542 |