- All sections
- G - Physics
- G03F - Photomechanical production of textured or patterned surfaces, e.g. for printing, for processing of semiconductor devicesmaterials therefororiginals thereforapparatus specially adapted therefor
- G03F 1/54 - Absorbers, e.g. opaque materials
Patent holdings for IPC class G03F 1/54
Total number of patents in this class: 401
10-year publication summary
|
29
|
21
|
38
|
35
|
64
|
41
|
46
|
33
|
28
|
2
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Hoya Corporation | 2746 |
86 |
| Taiwan Semiconductor Manufacturing Company, Ltd. | 40893 |
66 |
| Applied Materials, Inc. | 17887 |
35 |
| Shin-Etsu Chemical Co., Ltd. | 5479 |
26 |
| Agc, Inc. | 4526 |
24 |
| Boe Technology Group Co., Ltd. | 39178 |
14 |
| Samsung Electronics Co., Ltd. | 140010 |
10 |
| Toppan Photomask Co., Ltd. | 42 |
8 |
| Tekscend Photomask Corp. | 26 |
7 |
| Shenzhen China Star Optoelectronics Technology Co., Ltd. | 8482 |
6 |
| Samsung Display Co., Ltd. | 33072 |
5 |
| LG Chem, Ltd. | 17665 |
5 |
| Beijing BOE Optoelectronics Technology Co., Ltd. | 3835 |
5 |
| Toppan Printing Co., Ltd. | 2154 |
5 |
| Hon Hai Precision Industry Co., Ltd. | 4044 |
4 |
| Tsinghua University | 5731 |
4 |
| HKC Corporation Limited | 3199 |
4 |
| Hoya Electronics Singapore Pte. Ltd. | 8 |
4 |
| International Business Machines Corporation | 60279 |
3 |
| Intel Corporation | 46219 |
3 |
| Other owners | 77 |