POWER TRANSMISSION SYSTEM
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
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N/A
Issued Date -
Apr 24, 2014
app pub date -
Jun 28, 2012
filing date -
Jun 30, 2011
priority date (Note) -
Abandoned
status (Latency Note)
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Importance

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Abstract
A power transmission system includes an inverter section for outputting AC power of a predetermined frequency, a power transmission antenna for receiving AC power from the inverter section as input and a control section for controlling the frequency of the AC power output from the inverter section and computationally determining the inverter efficiency of the inverter section for the purpose of transmitting electric energy to a power reception antenna disposed oppositely relative to the power transmission antenna by way of an electromagnetic field, wherein the control section controls the system by computationally determining the inverter efficiency, while lowering the operational frequency from an upper limit frequency by a predetermined unit frequency at a time, and selecting the frequency that provides the highest inverter efficiency for the system to transmit power.
First Claim
all claims..Other Claims data not available
Family
Country | kind | publication No. | Filing Date | Type | Sub-Type |
---|---|---|---|---|---|
JP | A | JP2013017254 | Jun 30, 2011 | Patent | Application |
Type : Patent Sub-Type : Application | |||||
Published unexamined patent application | POWER TRANSMISSION SYSTEM | Jan 24, 2013 | |||
WO | A1 | WO2013002319 | Jun 28, 2012 | Patent | Application |
Type : Patent Sub-Type : Application | |||||
INTERNATIONAL APPLICATION PUBLISHED WITH INTERNATIONAL SEARCH REPORT | 電力伝送システム | Jan 03, 2013 | |||
CN | A | CN103620913 | Jun 28, 2012 | Patent | Application |
Type : Patent Sub-Type : Application | |||||
UNEXAMINED APPLICATION FOR A PATENT FOR INV. | Electrical power transmission system | Mar 05, 2014 | |||
EP | A1 | EP2728709 | Jun 28, 2012 | Patent | Application |
Type : Patent Sub-Type : Application | |||||
APPLICATION PUBLISHED WITH SEARCH REPORT | ELECTRICAL POWER TRANSMISSION SYSTEM | May 07, 2014 |
- 15 United States
- 10 France
- 8 Japan
- 7 China
- 5 Korea
- 2 Other
Patent Owner(s)
Patent Owner | Address | |
---|---|---|
EQUOS RESEARCH CO LTD | TOKYO 101-0021 |
International Classification(s)

- 2012 Application Filing Year
- H04B Class
- 7669 Applications Filed
- 6383 Patents Issued To-Date
- 83.24 % Issued To-Date
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
---|---|---|---|
Yamakawa, Hiroyuki | Tokyo, JP | 39 | 623 |
# of filed Patents : 39 Total Citations : 623 |
Cited Art Landscape
- No Cited Art to Display

Patent Citation Ranking
- 8 Citation Count
- H04B Class
- 4.15 % this patent is cited more than
- 11 Age
Forward Cite Landscape
- No Forward Cites to Display

Maintenance Fees
Fee | Large entity fee | small entity fee | micro entity fee | due date |
---|---|---|---|---|
11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Oct 24, 2025 |
Fee | Large entity fee | small entity fee | micro entity fee |
---|---|---|---|
Surcharge - 11.5 year - Late payment within 6 months | $160.00 | $80.00 | $40.00 |
Surcharge after expiration - Late payment is unavoidable | $700.00 | $350.00 | $175.00 |
Surcharge after expiration - Late payment is unintentional | $1,640.00 | $820.00 | $410.00 |
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