Direct-current power supply device and electric motor driving device
US-9948203-B2 · Apr 17, 2018 · US
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Yamakawa Takashi patents
Yamakawa Takashi holds 15 patents in our database, with recent filings and technology areas summarized below.
| Metric | Value |
|---|---|
| Total patents | 15 |
| Recent patents | 0 |
| First publication | Jun 18, 2015 |
| Latest publication | Apr 17, 2018 |
Filing trend
Year-over-year patent counts for this assignee.
Recent patents
Latest publications where this party is an assignee.
Power supply switching device and switch board
US-9825488-B2 · Nov 21, 2017 · US
Heat pump device, heat pump system, air conditioner, and freezer
US-9746216-B2 · Aug 29, 2017 · US
Charging/discharging system
US-9685800-B2 · Jun 20, 2017 · US
Chassis structure, optical scanning device, and image forming apparatus
US-9632476-B2 · Apr 25, 2017 · US
Notable patents
Representative or frequently cited publications from precomputed assignee stats.
Direct-current power supply device and electric motor driving device
US-9948203-B2 · Apr 17, 2018 · US
Power supply switching device and switch board
US-9825488-B2 · Nov 21, 2017 · US
Heat pump device, heat pump system, air conditioner, and freezer
US-9746216-B2 · Aug 29, 2017 · US
Charging/discharging system
US-9685800-B2 · Jun 20, 2017 · US
Chassis structure, optical scanning device, and image forming apparatus
US-9632476-B2 · Apr 25, 2017 · US
Technology areas
Mapped technology topics for this assignee.
| Technology | Patents |
|---|---|
| Electricity | 14 |
| Cross-Sectional Technologies | 12 |
| Mechanical Engineering | 7 |
| Physics | 4 |
| Operations & Transport | 3 |