Patent holdings for IPC class H02M 3/28

Total number of patents in this class: 2021

10-year publication summary

134
166
146
136
104
119
85
99
99
44
2017 2018 2019 2020 2021 2022 2023 2024 2025 2026

Principal owners for this class

Owner
All patents
This class
Mitsubishi Electric Corporation
47683
183
Murata Manufacturing Co., Ltd.
25588
100
Panasonic Intellectual Property Management Co., Ltd.
33690
96
Sumitomo Electric Industries, Ltd.
16145
58
Hitachi Automotive Systems, Ltd.
3954
55
Denso Corporation
25283
49
Rohm Co., Ltd.
6772
40
Fuji Electric Co., Ltd.
5409
38
Panasonic Corporation
19485
36
Hitachi, Ltd.
15920
35
Sumitomo Wiring Systems, Ltd.
10818
35
AutoNetworks Technologies, Ltd.
6965
35
TDK Corporation
6818
28
Omron Corporation
7333
26
Shindengen Electric Manufacturing Co., Ltd.
837
25
Huawei Technologies Co., Ltd.
120888
23
Texas Instruments Incorporated
19628
20
Delta Electronics, Inc.
2795
20
Sharp Kabushiki Kaisha
18610
20
Hitachi Astemo, Ltd.
6409
19
Other owners 1080