Patent holdings for IPC class H01H 13/52

Total number of patents in this class: 452

10-year publication summary

28
58
49
52
53
37
31
20
25
12
2016 2017 2018 2019 2020 2021 2022 2023 2024 2025

Principal owners for this class

Owner
All patents
This class
Alps Alpine Co., Ltd.
2120
40
Panasonic Intellectual Property Management Co., Ltd.
32095
34
Omron Corporation
7310
29
Apple Inc.
55735
19
citizen Electronics Co., Ltd.
347
18
Darfon Electronics Corp.
265
17
citizen Watch Co., Ltd.
1079
16
Primax Electronics Ltd.
459
10
Kabushiki Kaisha Tokai Rika Denki Seisakusho
1810
9
Shin-Etsu Polymer Co., Ltd.
461
7
Lite-On Technology Corporation
798
6
SMC Corporation
1367
6
U-Shin Ltd.
114
6
Sunrex Technology Corp.
65
5
Alps Electric Co., Ltd.
803
4
Covac Co., Ltd.
6
4
Darfon Electronics (Suzhou) Co., Ltd.
27
4
Lite-On Electronics (Guangzhou) Limited
360
4
Tokyo Parts Industrial Co., Ltd.
22
4
C&K Components S.A.S.
22
4
Other owners 206