- All sections
- H - Electricity
- H01L - Semiconductor devices not covered by class
- H01L 41/187 - Ceramic compositions
Patent holdings for IPC class H01L 41/187
Total number of patents in this class: 2208
10-year publication summary
170
|
135
|
170
|
186
|
214
|
181
|
168
|
137
|
49
|
4
|
2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
Owner |
All patents
|
This class
|
---|---|---|
Murata Manufacturing Co., Ltd. | 22355 |
258 |
Canon Inc. | 36841 |
116 |
Kyocera Corporation | 12735 |
101 |
Seiko Epson Corporation | 18724 |
100 |
TDK Corporation | 6306 |
90 |
FUJIFILM Corporation | 27102 |
76 |
NGK Insulators, Ltd. | 4589 |
70 |
Sumitomo Chemical Company, Limited | 8808 |
59 |
Taiyo Yuden Co., Ltd. | 1809 |
54 |
Canon Kabushiki Kaisha | 6884 |
47 |
National Institute of Advanced Industrial Science and Technology | 3677 |
38 |
Panasonic Corporation | 20786 |
37 |
Konica Minolta, Inc. | 8349 |
36 |
Mitsubishi Materials Corporation | 2378 |
27 |
Tokyo Institute of Technology | 1367 |
25 |
University of Yamanashi | 270 |
23 |
Ricoh Company, Ltd. | 13266 |
21 |
TDK Electronics AG | 863 |
21 |
Panasonic Intellectual Property Management Co., Ltd. | 27812 |
20 |
Nitto Denko Corporation | 7879 |
19 |
Other owners | 970 |