IPC Revision WG – F Project
JP
Definitions Proposal
Project: F035
Subclass: H02J
Date : 06/02/2016
Circuit arrangements or systems for wireless supply or
distribution of electric power – H02J17/00
Definition statement
This main group covers:
Circuit arrangements or systems for wireless supply or distribution of electric power
regardless of their types of wireless power transmission.
Functional aspects related to entire circuit arrangements or systems for wireless supply
or distribution of electric power rather than their arrangements for components per se.
References relevant to classification in this main group
Examples of places where the subject matter of this main group is covered when specially
adapted, used for a particular purpose, or incorporated in a larger system:
Ground installations specially adapted for captive aircraft with
means for supplying electricity to aircraft during flight
B64F3/02
Special rules of classification within this main group
In this main group, multi-aspect classification is applied, so that subject matter characterised
by aspects covered by more than one of its subgroups should be classified in each of those
subgroups.
The scheme of this main group has H02J17/05 - H02J17/30 for the types of wireless power
transmission and H02J17/40 – H02J17/90 for the functional aspects of systems.
If wireless power transmission types of the subject matter are distinguished, the subject
matter should be classified into H02J17/05 – H02J17/30.
If functional aspects of the subject matter are fallen into H02J17/40 – H02J17/90, the subject
matter should be classified into the appropriate subgroups of H02J17/40 – H02J17/90 too.
If wireless power transmission types of the subject matter are not distinguished, the subject
matter may be classified only into the appropriate subgroups of H02J17/40 – H02J17/90 or
only into H02J17/00.
If the subject matter is related to antennas of the systems using microwaves or radio
frequency waves, the subject matter should be classified into H02J17/23 or H02J17/27.
using capacitive coupling – H02J17/05
Definition statement
This subgroup covers:
Circuit arrangements or systems for wireless supply or distribution of electric power
using capacitive coupling, i.e. interaction between two or more electrodes.
The figure below is an example of this subgroup. In the figure, the pairs of electrodes 64
and 80 or 66 and 82 make capacitive coupling and transmit electric power.
Ref. US 2009/0302690 A1
Informative references
Attention is drawn to the following places, which may be of interest for search:
CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS,
SWITCHING DEVICES, LIGHT-SENSITIVE OR
TEMPERATURE-SENSITIVE DEVICES OF THE
ELECTROLYTIC TYPE
H01G
using inductive coupling – H02J17/10
Definition statement
This subgroup covers:
Circuit arrangements or systems for wireless supply or distribution of electric power
using inductive coupling, i.e. interaction between two or more inductive coils.
The figure below is an example of this subgroup. In the figure, inductive coils 3 and 7
transmit electric power by inductive connection.
Ref. US 5122729 A
Informative references
Attention is drawn to the following places, which may be of interest for search:
MAGNETS; INDUCTANCES; TRANSFORMERS;
SELECTION OF MATERIALS FOR THEIR MAGNETIC
PROPERTIES
H01F
of the resonant type – H02J17/12
Definition statement
This subgroup covers:
Circuit arrangements or systems for wireless supply or distribution of electric power
using inductive coupling of the resonant type, i.e. interaction between resonant type of
two or more inductive coils.
The figure below is an example of this subgroup. In the figure, resonant frequencies of
the LC circuits 14, 18 and 15, 18 are the same so that transmission efficiency of electric
power between the circuits 14 and 15 is increased.
Ref. US 2011/0227421 A1
Informative references
Attention is drawn to the following places, which may be of interest for search:
MAGNETS; INDUCTANCES; TRANSFORMERS;
SELECTION OF MATERIALS FOR THEIR MAGNETIC
PROPERTIES
H01F
using microwaves or radio frequency – H02J17/20
Definition statement
This subgroup covers:
Circuit arrangements or systems for wireless supply or distribution of electric power
using microwaves or radio frequency waves.
The figure below is an example of this subgroup. In the figure, propagated microwave
by the satellite 1 is received by devices with rectennas in the area 2.
Ref. US 2003/0192586 A1
Informative references
Attention is drawn to the following places, which may be of interest for search:
AERIALS
H01Q
involving two or more transmitting or receiving devices –
H02J17/40
Definition statement
This subgroup covers:
Circuit arrangements or systems for wireless supply or distribution of electric power
involving two or more transmitting or receiving devices.
The figure below is an example of this subgroup. In the figure, the transmitting
equipment has many transmitting coils 11 in order to transmit electric power rapidly.
Ref. JP 2006-246633 A
The figure below is also an example of this subgroup. In the figure, the transmitting
device transmits electric power to many receiving devices 1 simultaneously.
Ref. JP 2006-500894 A
References relevant to classification in this subclass
This subclass does not cover:
using additional energy repeaters between transmitting devices
and receiving devices
H02J17/50
using additional energy repeaters between transmitting devices
and receiving devices – H02J17/50
Definition statement
This subgroup covers:
Circuit arrangements or systems for wireless supply or distribution of electric power
using additional energy repeaters between transmitting devices and receiving devices.
The figure below is an example of this subgroup. In the figure, the repeater C2 repeats
electric power transmission between the transmitting device C1 and the receiving device
C3.
Ref. US 2009/0153273 A1
References relevant to classification in this subgroup
This subgroup does not cover:
The repeating circuit existing internally in one device as shown in the figure below.
Ref. US 2012/0169135 A1
responsive to the presence of foreign objects, e.g. detection of
foreign objects – H02J17/60
Definition statement
This subgroup covers:
Circuit arrangements or systems for wireless supply or distribution of electric power
responsive to the presence of foreign objects.
The figure below is an example of this subgroup. In the figure, the transmitting device
10 detects the presence of the foreign object 30.
Ref. JP 2011-507481 A
The figure below is also an example of this subgroup. In the figure, the container 133
makes a tilt movement to remove the foreign object 9.
Ref. US 2013/0015699 A1