Patent holdings for IPC class H02M 3/28

Total number of patents in this class: 1993

10-year publication summary

138
130
166
145
136
102
117
84
98
91
2016 2017 2018 2019 2020 2021 2022 2023 2024 2025

Principal owners for this class

Owner
All patents
This class
Mitsubishi Electric Corporation
46926
179
Murata Manufacturing Co., Ltd.
25001
100
Panasonic Intellectual Property Management Co., Ltd.
32457
90
Sumitomo Electric Industries, Ltd.
15780
58
Hitachi Automotive Systems, Ltd.
3955
55
Denso Corporation
24783
45
Rohm Co., Ltd.
6560
41
Fuji Electric Co., Ltd.
5253
37
Panasonic Corporation
19966
36
Hitachi, Ltd.
15692
35
Sumitomo Wiring Systems, Ltd.
10570
35
AutoNetworks Technologies, Ltd.
6753
35
TDK Corporation
6743
28
Omron Corporation
7306
26
Shindengen Electric Manufacturing Co., Ltd.
831
26
Huawei Technologies Co., Ltd.
115827
23
Mitsumi Electric Co., Ltd.
1092
22
Sharp Kabushiki Kaisha
18624
21
Texas Instruments Incorporated
19495
20
Delta Electronics, Inc.
2675
19
Other owners 1062