Patent holdings for IPC class H02M 3/28

Total number of patents in this class: 1989

10-year publication summary

138
130
166
145
136
102
117
83
98
82
2016 2017 2018 2019 2020 2021 2022 2023 2024 2025

Principal owners for this class

Owner
All patents
This class
Mitsubishi Electric Corporation
46590
179
Murata Manufacturing Co., Ltd.
24829
101
Panasonic Intellectual Property Management Co., Ltd.
32105
88
Sumitomo Electric Industries, Ltd.
15659
58
Hitachi Automotive Systems, Ltd.
3955
55
Denso Corporation
24562
45
Rohm Co., Ltd.
6511
41
Fuji Electric Co., Ltd.
5214
37
Panasonic Corporation
20030
36
Sumitomo Wiring Systems, Ltd.
10494
35
AutoNetworks Technologies, Ltd.
6688
35
Hitachi, Ltd.
15599
34
TDK Corporation
6873
28
Omron Corporation
7310
26
Shindengen Electric Manufacturing Co., Ltd.
825
26
Huawei Technologies Co., Ltd.
114320
23
Mitsumi Electric Co., Ltd.
1094
23
Sharp Kabushiki Kaisha
18694
21
Texas Instruments Incorporated
19456
20
Delta Electronics, Inc.
2650
19
Other owners 1059