- All sections
- H - Electricity
- H01J - Electric discharge tubes or discharge lamps
- H01J 9/227 - Applying luminescent coatings with luminescent material discontinuously arranged, e.g. in dots or lines
Patent holdings for IPC class H01J 9/227
Total number of patents in this class: 52
10-year publication summary
|
2
|
0
|
0
|
0
|
1
|
0
|
0
|
0
|
1
|
0
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Kabushiki Kaisha Toshiba, doing business as Toshiba Corporation | 6275 |
11 |
| Samsung Display Co., Ltd. | 30585 |
3 |
| Thomson Licensing | 4027 |
3 |
| JSR Corporation | 2476 |
3 |
| Hitachi Plasma Display Limited | 93 |
3 |
| Panasonic Corporation | 20786 |
2 |
| Matsushita Electric Industrial Co., Ltd. | 4724 |
2 |
| Hitachi, Ltd. | 16452 |
2 |
| Hitachi Chemical Company, Ltd. | 2455 |
2 |
| Pioneer Corporation | 4843 |
2 |
| Taiyo Ink Mfg. Co., Ltd. | 219 |
2 |
| Samsung Electronics Co., Ltd. | 131630 |
1 |
| LG Display Co., Ltd. | 11907 |
1 |
| Corning Incorporated | 9932 |
1 |
| Konica Minolta Medical & Graphic, Inc. | 986 |
1 |
| Panasonic Intellectual Property Corporation of America | 7230 |
1 |
| Au Optronics Corporation | 3880 |
1 |
| Toray Industries, Inc. | 6652 |
1 |
| National Institute of Advanced Industrial Science and Technology | 3677 |
1 |
| Nichia Corporation | 3394 |
1 |
| Other owners | 8 |