- All sections
- G - Physics
- G11B - Information storage based on relative movement between record carrier and transducer
- G11B 7/135 - Means for guiding the beam from the source to the record carrier or from the record carrier to the detector
Patent holdings for IPC class G11B 7/135
Total number of patents in this class: 1142
10-year publication summary
|
25
|
27
|
19
|
12
|
8
|
8
|
11
|
2
|
5
|
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 |
150 |
| Panasonic Corporation | 20786 |
120 |
| Pioneer Corporation | 4843 |
84 |
| Matsushita Electric Industrial Co., Ltd. | 4724 |
62 |
| Koninklijke Philips Electronics N.V. | 13133 |
61 |
| Konica Minolta, Inc. | 8349 |
44 |
| NEC Corporation | 32703 |
43 |
| Hitachi Consumer Electronics Co., Ltd. | 300 |
40 |
| Asahi Glass Company, Limited | 2985 |
34 |
| Sony Corporation | 32931 |
32 |
| Panasonic Intellectual Property Management Co., Ltd. | 27812 |
27 |
| Mitsubishi Electric Corporation | 43934 |
26 |
| Sanyo Electric Co., Ltd. | 3926 |
26 |
| Fujitsu Limited | 19265 |
22 |
| Alps Electric Co., Ltd. | 851 |
19 |
| Hitachi, Ltd. | 16452 |
18 |
| Sharp Kabushiki Kaisha | 18957 |
18 |
| Seagate Technology LLC | 4228 |
17 |
| Samsung Electronics Co., Ltd. | 131630 |
15 |
| Konica Minolta Advanced Layers, Inc. | 218 |
12 |
| Other owners | 272 |