Patent holdings for IPC class H02M 3/28

Total number of patents in this class: 1963

10-year publication summary

139
134
166
146
136
104
119
83
97
50
2016 2017 2018 2019 2020 2021 2022 2023 2024 2025

Principal owners for this class

Owner
All patents
This class
Mitsubishi Electric Corporation
45860
180
Murata Manufacturing Co., Ltd.
24369
102
Panasonic Intellectual Property Management Co., Ltd.
31022
78
Sumitomo Electric Industries, Ltd.
15377
58
Hitachi Automotive Systems, Ltd.
3958
55
Denso Corporation
24146
45
Rohm Co., Ltd.
6410
42
Fuji Electric Co., Ltd.
5114
37
Panasonic Corporation
20166
35
Sumitomo Wiring Systems, Ltd.
10271
35
AutoNetworks Technologies, Ltd.
6529
35
Hitachi, Ltd.
15449
34
TDK Corporation
6676
28
Omron Corporation
7238
26
Mitsumi Electric Co., Ltd.
1085
24
Shindengen Electric Manufacturing Co., Ltd.
804
24
Huawei Technologies Co., Ltd.
111237
23
Sharp Kabushiki Kaisha
18787
21
Texas Instruments Incorporated
19482
20
Fujitsu Limited
18362
19
Other owners 1042