- 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: 115
10-year publication summary
|
5
|
6
|
1
|
5
|
1
|
1
|
0
|
0
|
1
|
0
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Konica Minolta Opto, Inc. | 1179 |
22 |
| Sanyo Electric Co., Ltd. | 3926 |
16 |
| Konica Minolta, Inc. | 8349 |
9 |
| SANYO Electronic Device Sales Co.,Ltd. | 15 |
8 |
| Panasonic Corporation | 20786 |
5 |
| Panasonic Intellectual Property Management Co., Ltd. | 27812 |
4 |
| SANYO Optec Design Co., Ltd. | 9 |
4 |
| Sharp Kabushiki Kaisha | 18957 |
4 |
| Matsushita Electric Industrial Co., Ltd. | 4724 |
3 |
| Olympus Corporation | 13667 |
3 |
| Konica Minolta Advanced Layers, Inc. | 218 |
3 |
| Arima Devices Corporation | 29 |
3 |
| Hitachi, Ltd. | 16452 |
2 |
| Seagate Technology LLC | 4228 |
2 |
| Headway Technologies, Inc. | 715 |
2 |
| Pioneer Corporation | 4843 |
2 |
| Pulstec Industrial Co., Ltd. | 10 |
2 |
| Sony Corporation | 32931 |
1 |
| The Regents of the University of California | 18943 |
1 |
| Sumitomo Electric Industries, Ltd. | 14131 |
1 |
| Other owners | 18 |