- All sections
- H - Electricity
- H04N - Pictorial communication, e.g. television
- H04N 1/40 - Picture signal circuits
Patent holdings for IPC class H04N 1/40
Total number of patents in this class: 2026
10-year publication summary
|
191
|
155
|
160
|
147
|
100
|
77
|
64
|
48
|
25
|
11
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Canon Inc. | 36841 |
268 |
| Brother Industries, Ltd. | 13000 |
149 |
| Ricoh Company, Ltd. | 13266 |
118 |
| Hewlett-Packard Development Company, L.P. | 28538 |
114 |
| Xerox Corporation | 7503 |
86 |
| Seiko Epson Corporation | 18724 |
70 |
| FUJIFILM Business Innovation Corp. | 7395 |
62 |
| Kyocera Document Solutions Inc. | 5295 |
59 |
| Konica Minolta, Inc. | 8349 |
49 |
| Sharp Corporation | 10015 |
48 |
| Toshiba TEC Corporation | 3877 |
47 |
| Toshiba Corporation | 12017 |
43 |
| Konica Minolta Business Technologies, Inc. | 1564 |
42 |
| FUJIFILM Corporation | 27102 |
32 |
| Kofax, Inc. | 202 |
30 |
| Eastman Kodak Company | 3444 |
22 |
| NEC Corporation | 32703 |
17 |
| PFU Limited | 707 |
17 |
| Sony Corporation | 32931 |
16 |
| Lexmark International, Inc. | 1793 |
16 |
| Other owners | 721 |