- All sections
- G - Physics
- G02B - Optical elements, systems or apparatus
- G02B 15/173 - Optical objectives with means for varying the magnification by axial movement of one or more lenses or groups of lenses relative to the image plane for continuously varying the equivalent focal length of the objective with interdependent non-linearly related movements between one lens or lens group, and another lens or lens group having a first movable lens or lens group and a second movable lens or lens group, both in front of a fixed lens or lens group having an additional fixed front lens or group of lenses arranged + – +
Patent holdings for IPC class G02B 15/173
Total number of patents in this class: 419
10-year publication summary
95
|
64
|
62
|
51
|
30
|
19
|
7
|
5
|
6
|
0
|
2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
Owner |
All patents
|
This class
|
---|---|---|
Canon Inc. | 36841 |
98 |
Nikon Corporation | 7162 |
84 |
FUJIFILM Corporation | 27102 |
56 |
OM Digital Solutions Corp. | 706 |
31 |
Panasonic Intellectual Property Management Co., Ltd. | 27812 |
19 |
Tamron Co., Ltd. | 202 |
15 |
Sony Corporation | 32931 |
11 |
Ricoh Imaging Company, Ltd. | 153 |
9 |
Olympus Corporation | 13667 |
8 |
Hanwha Vision Co., Ltd. | 568 |
7 |
Panasonic Corporation | 20786 |
6 |
Young Optics Inc. | 247 |
6 |
Ricoh Company, Ltd. | 13266 |
5 |
Carl Zeiss Microscopy GmbH | 1146 |
4 |
Sintai Optical (Shenzhen) Co., Ltd. | 209 |
4 |
Samsung Electronics Co., Ltd. | 131630 |
3 |
Pentax Ricoh Imaging Company, Ltd. | 132 |
3 |
Huawei Technologies Co., Ltd. | 100781 |
3 |
Asia Optical International Ltd. | 124 |
3 |
Konica Minolta Advanced Layers, Inc. | 218 |
2 |
Other owners | 42 |