	US 8,860,436 C1 (13,073rd)
	Sensor of electromagnetic induction type coordinate input device
Takeshi Kobori, Ibaraki (JP); and Daisuke Watanabe, Saitama (JP)
Filed by Wacom Co., Ltd., Saitama (JP)
Assigned to WACOM CO., LTD., Saitama (JP)
Reexamination Request No. 90/019,815, Jan. 16, 2025.
Reexamination Certificate for Patent 8,860,436, issued Oct. 14, 2014, Appl. No. 13/763,323, Feb. 8, 2013.
Claims priority of application No. 2012-052683 (JP), filed on Mar. 9, 2012.
Ex Parte Reexamination Certificate issued on Oct. 31, 2025.
Int. Cl. G01B 7/004 (2006.01); G06F 3/046 (2006.01)

CPC G01B 7/004 (2013.01) [G06F 3/046 (2013.01)]

AS A RESULT OF REEXAMINATION, IT HAS BEEN DETERMINED THAT:

Claims 1-3 are determined to be patentable as amended.

Claims 4-9, dependent on an amended claim, are determined to be patentable.

New claims 10-36 are added and determined to be patentable.

1. A sensor of an electromagnetic induction type coordinate input device, comprising:

a first loop coil group, in which plural first loop coils are disposed in a first direction, each of the first loop coils including a first extraction line portion composed of a first line and a second line formed in parallel with each other, and a first loop portion continuously connected to the first and second lines of the first extraction line portion and having a shape that surrounds a predetermined area; and

a second loop coil group, in which plural second loop coils are disposed in a second direction perpendicular to the first direction, each of the second loop coils including a second extraction line portion composed of a third line and a fourth line formed in parallel with each other, and a second loop portion continuously connected to the third and fourth lines of the second extraction line portion and having a shape that surrounds a predetermined area,

wherein an area occupied by the first loop portions of the first loop coil group and the second loop portions of the second loop coil group ~~define~~ [ defines ] a position detection area, ~~and~~

wherein ~~one of the first line or~~ the second line of one of the first loop coils is connected to ~~at least one of: (i) the first line or~~ the second line of another one of the first loop coils ~~, and (ii) a line of the second loop portion of one of the second loop coils~~, within the position detection area, to form a common extraction line ~~with (i) and/or (ii)~~, and ~~the other of~~ the first line ~~or the second line~~ of said one of the first loop coils having the common extraction line is disposed in parallel with and close to the common extraction line [ , and

wherein the first loop portions include long sides along the second direction and short sides along the first direction, and a through hole of the first line connected to a long side or a through hole of the common extraction line connected to the long side is not located on a straight line extending along the long side] .

2. The sensor of an electromagnetic induction type coordinate input device according to claim 1, wherein the first line of the first extraction line portion is a line through which a signal is supplied or a signal is taken out, and the second line of the first extraction line portion is a line which is connected to a reference electric potential ~~; and~~

the second line of the first extraction line portion of said one of the first loop coils is connected to at least one of: (i) the second line of the first extraction line portion of another one of the first loop coils, and (ii) a line of the second loop portion of one of the second loop coils, to form a common extraction line with (i) and/or (ii), and the first line of said one of the fist loop coils having the common extraction line is disposed in parallel with and close to the common extraction line.

3. The sensor of an electromagnetic induction type coordinate input device according to claim 1, wherein at least a portion of the first loop portions of the first loop coils which extend to intersect with the first direction is formed on a first surface of a substrate, the first extraction line portions are formed on a second surface on a side opposite to the first surface of the substrate, and the first extraction line portions and the first loop portions are connected to each other via through holes provided in the substrate; and

at least a portion of the second loop portions of the second loop coils which extend to intersect with the second direction is formed on the second surface of the substrate, and a connection between ~~said one of the first line or~~ the second line of one of the first loop coils and ~~at least one of: (i) the first line or~~ the second line of another one of the first loop coils ~~and (ii) a line of the second loop portion of one of the second loop coils~~ is formed on the second surface of the substrate.

[ 10. The sensor of an electromagnetic induction type coordinate input device according to claim 1, wherein at least a portion of the first loop portions of the first loop coils is formed on a first surface of a substrate, another portion of the first loop portions of the first loop coils is formed on a second surface on a side opposite to the first surface of the substrate, and at least a portion of the common extraction line is formed on the second surface of the substrate.]

[ 11. The sensor of an electromagnetic induction type coordinate input device according to claim 10, wherein the first loop portions include long sides along the second direction and short sides along the first direction, and the another portion of the first loop portions formed on the second surface of the substrate includes the short sides of the first loop portions.]

[ 12. The sensor of an electromagnetic induction type coordinate input device according to claim 10, wherein the first loop portions include long sides along the second direction and short sides along the first direction, and the portion of the first loop portions formed on the first surface of the substrate includes the long sides of the first loop portions.]

[ 13. The sensor of an electromagnetic induction type coordinate input device according to claim 1, wherein at least a portion of the first loop portions of the first loop coils is formed on a first surface of a substrate, and the first line through which a signal is supplied is formed on a second surface on a side opposite to the first surface of the substrate.]

[ 14. The sensor of an electromagnetic induction type coordinate input device according to claim 1, wherein the first line and the common extraction line form a plurality of parallel lines having bends to connect to respective through holes.]

[ 15. A sensor of an electromagnetic induction type coordinate input device, comprising:

wherein an area occupied by the first loop portions of the first loop coil group and the second loop portions of the second loop coil group defines a position detection area,

wherein the second line of one of the first loop coils is connected to the second line of another one of the first loop coils, within the position detection area, to form a common extraction line, and the first line of said one of the first loop coils having the common extraction line is disposed in parallel with and close to the common extraction line, and

wherein the first line and the common extraction line form a plurality of parallel lines having bends to connect to respective through holes.]

[ 16. The sensor of an electromagnetic induction type coordinate input device according to claim 15, wherein the first line is a line through which a signal is supplied.]

[ 17. The sensor of an electromagnetic induction type coordinate input device according to claim 15,

wherein two or more second lines of the first extraction line portions of the two or more first loop coils of the first loop coil group are commonly connected to the second line of the first extraction line portion of another one of the first loop coils of the first loop coil group, within the position detection area, to form a common extraction line, and two or more first lines of the two or more first loop coils sharing the common extraction line are disposed in parallel with the common extraction line, and

wherein the plural first loop coils of the first loop coil group are divided into plural groups, and the second lines of the first extraction line portions of the first loop coils in each of the plural groups are made into a common extraction line.]

[ 18. The sensor of an electromagnetic induction type coordinate input device according to claim 17, wherein the two or more first lines of the first extraction line portions of the two or more first loop coils sharing the common extraction line, which are disposed in parallel with the common extraction line, are alternately arranged on both sides of the common extraction line with the common extraction line located at a center.]

[ 19. The sensor of an electromagnetic induction type coordinate input device according to claim 15, wherein the first loop portions include long sides along the second direction and short sides along the first direction, the long sides of the first loop portions are formed on a first surface of a substrate, and at least a portion of the common extraction line is formed on a second surface on a side opposite to the first surface of the substrate.]

[ 20. The sensor of an electromagnetic induction type coordinate input device according to claim 19, wherein at least a portion of the second loop portions of the second loop coils is formed on the second surface of the substrate, the second loop portions include long sides along the first direction and short sides along the second direction, and at least a portion of the common extraction line is formed in parallel with the long sides of the second loop portions.]

[ 21. The sensor of an electromagnetic induction type coordinate input device according to claim 15, wherein the first extraction line portions and the second extraction line portions are both disposed in parallel with the first direction and are both connected to one connector portion.]

[ 22. A sensor of an electromagnetic induction type coordinate input device, comprising:

wherein an area occupied by the first loop portions of the first loop coil group and the second loop portions of the second loop coil group defines a position detection area,

wherein one of the first line or the second line of one of the first loop coils is connected to at least one of: (i) the first line or the second line of another one of the first loop coils, and (ii) a line of the second loop portion of one of the second loop coils, within the position detection area, to form a common extraction line with (i) and/or (ii), and the other of the first line or the second line of said one of the first loop coils having the common extraction line is disposed in parallel with and close to the common extraction line,

wherein the two or more second lines of the first extraction line portions of the two or more first loop coils are connected to the second loop portion(s) of the second loop coil(s), within the position detection area, to commonly use line(s) of the second loop portion(s) as common extraction line(s), and the two or more first lines of the first extraction line portions of the two or more first loop coils are disposed in parallel with the common extraction line(s).]

[ 23. A sensor of an electromagnetic induction type coordinate input device, comprising:

wherein an area occupied by the first loop portions of the first loop coil group and the second loop portions of the second loop coil group defines a position detection area, and

wherein one of the first line or the second line of one of the first loop coils is connected to a line of the second loop portion of one of the second loop coils, within the position detection area, to form a common extraction line, and the other of the first line or the second line of said one of the first loop coils having the common extraction line is disposed in parallel with and close to the common extraction line.]

[ 24. The sensor of an electromagnetic induction type coordinate input device according to claim 23, wherein the first line of the first extraction line portion is a line through which a signal is supplied or a signal is taken out, and the second line of the first extraction line portion is a line which is connected to a reference electric potential.]

[ 25. The sensor of an electromagnetic induction type coordinate input device according to claim 23, wherein at least a portion of the first loop portions of the first loop coils which extend to intersect with the first direction is formed on a first surface of a substrate, the first extraction line portions are formed on a second surface on a side opposite to the first surface of the substrate, and the first extraction line portions and the first loop portions are connected to each other via through holes provided in the substrate; and

at least a portion of the second loop portions of the second loop coils which extend to intersect with the second direction is formed on the second surface of the substrate, and a connection between said one of the first line or the second line of one of the first loop coils and a line of the second loop portion of one of the second loop coils is formed on the second surface of the substrate.]

[ 26. The sensor of an electromagnetic induction type coordinate input device according to claim 23, wherein the first extraction line portions and the second extraction line portions are both disposed in parallel with the first direction and are both connected to one connector portion.]

[ 27. A sensor of an electromagnetic induction type coordinate input device, comprising:

wherein an area occupied by the first loop portions of the first loop coil group and the second loop portions of the second loop coil group defines a position detection area,

[ 28. A sensor of an electromagnetic induction type coordinate input device, comprising:

wherein an area occupied by the first loop portions of the first loop coil group and the second loop portions of the second loop coil group defines a position detection area,

wherein the first line and the common extraction line form a plurality of parallel lines having bends to connect to respective through holes.]

[ 29. A sensor of an electromagnetic induction type coordinate input device, comprising:

wherein an area occupied by the first loop portions of the first loop coil group and the second loop portions of the second loop coil group defines a position detection area,

wherein the fourth line of one of the second loop coils is connected to the fourth line of another one of the second loop coils, within the position detection area, to form a second common extraction line, and the third line of said one of the second loop coils having the second common extraction line is disposed in parallel with and close to the second common extraction line,

wherein at least a portion of the first loop portions of the first loop coils is formed on a first surface of a substrate, and at least a portion of the second loop portions of the second loop coils is formed on a second surface on a side opposite to the first surface of the substrate, and

wherein at least a portion of the common extraction line and at least a portion of the second common extraction line are formed on the second surface of the substrate.]

[ 30. The sensor of an electromagnetic induction type coordinate input device according to claim 29, wherein the first line is a line through which a signal is supplied.]

[ 31. The sensor of an electromagnetic induction type coordinate input device according to claim 29, wherein the third line is a line through which a signal is supplied.]

[ 32. The sensor of an electromagnetic induction type coordinate input device according to claim 29,

wherein the plural second loop coils of the second loop coil group are divided into second plural groups, and the fourth lines of the second extraction line portions of the second loop coils in each of the second plural groups are made into a second common extraction line.]

[ 33. The sensor of an electromagnetic induction type coordinate input device according to claim 29,

wherein the first loop portions include long sides along the second direction and short sides along the first direction, and the long sides of the first loop portions are formed on the first surface of the substrate, and

wherein the second loop portions include long sides along the first direction and short sides along the second direction, and the long sides of the second loop portions are formed on the second surface of the substrate.]

[ 34. The sensor of an electromagnetic induction type coordinate input device according to claim 29, wherein the first extraction line portions and the second extraction line portions are both disposed in parallel with the first direction and are both connected to one connector portion.]

[ 35. The sensor of an electromagnetic induction type coordinate input device according to claim 29, wherein the common extraction line and the second common extraction line are connected to each other.]

[ 36. A sensor of an electromagnetic induction type coordinate input device, comprising:

wherein an area occupied by the first loop portions of the first loop coil group and the second loop portions of the second loop coil group defines a position detection area,

wherein at least a portion of the common extraction line and at least a portion of the second common extraction line are formed on the second surface of the substrate.]