- All sections
- G - Physics
- G02B - Optical elements, systems or apparatus
- G02B 15/167 - 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
Patent holdings for IPC class G02B 15/167
Total number of patents in this class: 184
10-year publication summary
23
|
14
|
18
|
35
|
10
|
17
|
13
|
3
|
8
|
1
|
2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
Owner |
All patents
|
This class
|
---|---|---|
FUJIFILM Corporation | 27102 |
63 |
Nikon Corporation | 7162 |
23 |
Canon Inc. | 36841 |
19 |
Konica Minolta, Inc. | 8349 |
7 |
Ricoh Imaging Company, Ltd. | 153 |
6 |
Konica Minolta Opto, Inc. | 1179 |
6 |
Seiko Epson Corporation | 18724 |
5 |
Panasonic Intellectual Property Management Co., Ltd. | 27812 |
5 |
Olympus Corporation | 13667 |
4 |
Sony Corporation | 32931 |
3 |
Panasonic Corporation | 20786 |
3 |
Navitar, Inc. | 73 |
3 |
Nittoh Inc. | 96 |
3 |
Ricoh Company, Ltd. | 13266 |
2 |
Huawei Technologies Co., Ltd. | 100781 |
2 |
Samsung Electro-mechanics Co., Ltd. | 4798 |
2 |
Konica Minolta Advanced Layers, Inc. | 218 |
2 |
Carl Zeiss Industrielle Messtechnik GmbH | 433 |
2 |
Coretronic Corporation | 1165 |
2 |
Nikon Vision Co., Ltd. | 125 |
2 |
Other owners | 20 |