- 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: 431
10-year publication summary
|
21
|
38
|
35
|
64
|
41
|
46
|
34
|
30
|
30
|
3
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Hoya Corporation | 2757 |
84 |
| Taiwan Semiconductor Manufacturing Company, Ltd. | 46661 |
75 |
| Applied Materials, Inc. | 19717 |
37 |
| Agc, Inc. | 5162 |
32 |
| Shin-Etsu Chemical Co., Ltd. | 5878 |
30 |
| Boe Technology Group Co., Ltd. | 42523 |
14 |
| Samsung Electronics Co., Ltd. | 151726 |
13 |
| Tekscend Photomask Corp. | 33 |
10 |
| Toppan Photomask Co., Ltd. | 39 |
8 |
| Shenzhen China Star Optoelectronics Technology Co., Ltd. | 8475 |
6 |
| Samsung Display Co., Ltd. | 37314 |
5 |
| LG Chem, Ltd. | 17745 |
5 |
| Beijing BOE Optoelectronics Technology Co., Ltd. | 3916 |
5 |
| Toppan Printing Co., Ltd. | 2110 |
5 |
| Hon Hai Precision Industry Co., Ltd. | 4005 |
4 |
| Tsinghua University | 6071 |
4 |
| HKC Corporation Limited | 3391 |
4 |
| KLA Corporation | 1754 |
4 |
| Hoya Electronics Singapore Pte. Ltd. | 10 |
4 |
| International Business Machines Corporation | 61969 |
3 |
| Other owners | 79 |