- All sections
- G - Physics
- G11B - Information storage based on relative movement between record carrier and transducer
- G11B 7/22 - Apparatus or processes for the manufacture of optical heads, e.g. assembly
Patent holdings for IPC class G11B 7/22
Total number of patents in this class: 98
10-year publication summary
|
1
|
5
|
1
|
1
|
0
|
0
|
1
|
0
|
0
|
0
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Konica Minolta Opto, Inc. | 894 |
20 |
| Sanyo Electric Co., Ltd. | 3391 |
16 |
| Konica Minolta, Inc. | 9159 |
9 |
| SANYO Electronic Device Sales Co.,Ltd. | 15 |
8 |
| Panasonic Corporation | 18809 |
5 |
| Panasonic Intellectual Property Management Co., Ltd. | 34335 |
4 |
| SANYO Optec Design Co., Ltd. | 9 |
4 |
| Sharp Kabushiki Kaisha | 18495 |
4 |
| Olympus Corporation | 12915 |
3 |
| Konica Minolta Advanced Layers, Inc. | 217 |
3 |
| Hitachi, Ltd. | 16183 |
2 |
| Seagate Technology LLC | 3962 |
2 |
| Headway Technologies, Inc. | 680 |
2 |
| The Regents of the University of California | 20842 |
1 |
| Sumitomo Electric Industries, Ltd. | 16331 |
1 |
| Sumitomo Electric Hardmetal Corp. | 1101 |
1 |
| Konica Minolta Holdings, Inc. | 773 |
1 |
| Funai Electric Co., Ltd. | 501 |
1 |
| Idemitsu Kosan Co., Ltd. | 4263 |
1 |
| Kaneka Corporation | 4745 |
1 |
| Other owners | 9 |