- All sections
- G - Physics
- G03B - Apparatus or arrangements for taking photographs or for projecting or viewing themapparatus or arrangements employing analogous techniques using waves other than optical wavesaccessories therefor
- G03B 27/50 - Projection printing apparatus, e.g. enlarger, copying camera with slit or like diaphragm moving over original for progressive exposure
Patent holdings for IPC class G03B 27/50
Total number of patents in this class: 41
10-year publication summary
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3
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2
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2
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3
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2
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0
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1
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0
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1
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1
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| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Kyocera Document Solutions Inc. | 6256 |
12 |
| Mitsubishi Electric Corporation | 48048 |
5 |
| Canon Components, Inc. | 59 |
4 |
| Nisca Corporation | 141 |
3 |
| Canon Kabushiki Kaisha | 7341 |
3 |
| Canon Inc. | 43869 |
2 |
| Vienex Corporation | 32 |
2 |
| Seiko Epson Corporation | 20259 |
1 |
| Mitsubishi Rayon Co., Ltd. | 853 |
1 |
| Hand held Products, Inc. | 1290 |
1 |
| NEC Platforms, Ltd. | 1065 |
1 |
| Screen Holdings Co., Ltd. | 3160 |
1 |
| Shanghai Yiying Digital Technology Co., Ltd. | 9 |
1 |
| Shenzhen TCL New Technology Company Limited | 1098 |
1 |
| Adobe Inc. | 7532 |
1 |
| Brother Kogyo Kabushikikaisha | 1805 |
1 |
| FUJIFILM Business Innovation Corp. | 7929 |
1 |
| Other owners | 0 |