- 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: 443
10-year publication summary
|
21
|
38
|
35
|
64
|
41
|
46
|
35
|
30
|
30
|
15
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Hoya Corporation | 2721 |
86 |
| Taiwan Semiconductor Manufacturing Company, Ltd. | 48302 |
78 |
| Applied Materials, Inc. | 20375 |
37 |
| Agc, Inc. | 5524 |
34 |
| Shin-Etsu Chemical Co., Ltd. | 6096 |
33 |
| Samsung Electronics Co., Ltd. | 157719 |
14 |
| Boe Technology Group Co., Ltd. | 44029 |
14 |
| Tekscend Photomask Corp. | 34 |
10 |
| Toppan Photomask Co., Ltd. | 34 |
8 |
| Shenzhen China Star Optoelectronics Technology Co., Ltd. | 8471 |
6 |
| Samsung Display Co., Ltd. | 38627 |
5 |
| LG Chem, Ltd. | 17921 |
5 |
| Beijing BOE Optoelectronics Technology Co., Ltd. | 3932 |
5 |
| Toppan Printing Co., Ltd. | 2087 |
5 |
| Hon Hai Precision Industry Co., Ltd. | 4022 |
4 |
| Tsinghua University | 6211 |
4 |
| HKC Corporation Limited | 3489 |
4 |
| S&S Tech Co., Ltd. | 33 |
4 |
| KLA Corporation | 1849 |
4 |
| Hoya Electronics Singapore Pte. Ltd. | 10 |
4 |
| Other owners | 79 |