1461123447-1aeeb16c-b40e-47ba-948b-6c245d9b4f9f

1. A guitar stand, comprising in combination:
a) a generally upright backer having a front side that is inclined rearwardly,
b) structure supporting the backer,
c) and a guitar body support or supports, carried by the backer or said structure to project outwardly relative to said front face, to seat the lower portion or portions of the guitar body, with the guitar and its fingerboard then inclined upwardly and rearwardly proximate said backer front side,
d) the backer, or a major portion of the backer, having an outline shape substantially the same as that of the guitar body, to be supported.
2. The combination of claim 1 wherein said supports are spaced to seat lower left and right portions of the guitar body.
3. The combination of claim 2 including the guitar body cradled by the supports.
4. The combination of claim 3 wherein the guitar body projects downwardly at the space between the left and right supports.
5. The combination of claim 4 wherein the left and right supports comprise left and right pegs projecting at generally the same level.
6. The combination of claim 4 wherein the backer projects upwardly rearwardly of the guitar body and fingerboard.
7. The combination of claim 1 wherein said structure supporting the backer includes leg means projecting downwardly relative to the backer, whereby the guitar is cradled by the backer and said outwardly projecting supports.
8. The combination of claim 7 wherein said leg means have floor engaging parts or surfaces which are spaced apart to stably support the backer with a guitar body seated on said body support or supports.
9. The combination of claim 8 wherein said leg means include two legs projecting downwardly from left and right portions of the backer.
10. The combination of claim 9 wherein said leg means include a rear leg projecting downwardly from a rear portion of the backer.
11. A guitar stand, comprising in combination:
a) a generally upright backer having a front side that is inclined rearwardly,
b) structure supporting the backer,
c) and a guitar body support or supports, carried by the backer or said structure to project outwardly relative to said front face, to seat the lower portion or portions of the guitar body, with the guitar and its fingerboard then inclined upwardly and rearwardly proximate said backer front side the backer, or a major portion of the backer, having an outline shape substantially the same as that of the guitar body to be supported,
d) said structure supporting the backer including leg means protecting downwardly relative to the backer, whereby the guitar is cradled by the backer and said outwardly projecting supports,
e) said leg means having floor engaging parts or surfaces which are spaced apart to stably support the backer with a guitar body seated on said body support or supports,
f) said leg means including two legs projecting downwardly from left and right portions of the backer,
g) said leg means including a rear leg projecting downwardly from a rear portion of the backer,
h) and wherein said rear leg is pivotally connected to the backer, to swing between collapsed position adjacent the backer, and extended position projecting away from the backer rear portion.
12. The combination of claim 11 including a holder carried by the backer to hold the rear leg in said collapsed position.
13. The combination of claim 11 including magnetic means to hold the rear leg in said collapsed position.
14. The combination of claim 1 wherein said backer front side has a display face, to be fully visible when a guitar is removed from supported relation by said backer and projecting supports.
15. A guitar stand, comprising in combination
a) a guitar carrier and a three point guitar body support on the carrier,
b) and a multi-point ground engaging support for the carrier,
c) and wherein the carrier or a major portion of the carrier has an outline shape the same as that of the guitar body, to be supported.
16. The combination of claim 15 including a guitar body supported on the carrier, and gravitationally cradled at the following locations:
i) at left and right locations adjacent curved body edges,
ii) and at the back of the guitar body.
17. The combination of claim 11 wherein the backer or a major portion of the backer, has an outline shape the same as that of the guitar body or a lower portion of the guitar body, to be supported.
18. The combination of claim 1 including said guitar supported by the backer so that the guitar body outline is superimposed on the backer outline.

The claims below are in addition to those above.
All refrences to claim(s) which appear below refer to the numbering after this setence.

1. An optical information recording medium comprising
a substrate; and
a recording layer provided on the substrate, to which recording layer information can be recorded and from which the information can be replayed by laser irradiation,
wherein the substrate comprises a transparent disc-shaped substrate having a pregroove with a track pitch of 0.2 to 0.5 \u03bcm formed thereon, and the recording layer is provided on a surface of a side of the substrate on which surface the pregroove is formed, and
wherein the recording layer comprises a compound represented by the following formula
wherein at least one of X1 and X2 is a hetero atom, and X1 and X2 form a five- or six-membered hetero ring (A) selected from the group consisting of benzothiazoline ring, a benzoxazoline ring, and a benzodithiol ring, each of which may be further fused with other aromatic rings;
Y1 and Y2 are substituents, at least one of Y1 and Y2 represents \u2014CN, \u2014COR1, \u2014COOR2, \u2014CONR3R4, \u2014SOR5, \u2014SO2R6 or \u2014SO2NR7R8, each of R1 to R8 represents a hydrogen atom an alkyl group or an aryl group, and Y1 and Y2 may be linked together to form a ring other than a 2-thiohydantoin ring.
2. The optical information recording medium according to claim 1, wherein the wavelength of the laser is no more than 440 nm.
3. The optical information recording medium according to claim 1, wherein the laser is a semiconductor laser having the wavelength of near 405 nm.
4. The optical information recording medium according to claim 1, wherein one of X1 and X2 in the compound represented by formula (I) comprises a nitrogen atom or a sulfur atom.
5. The optical information recording medium according to claim 1, wherein Y1 and Y2 in the compound represented by formula (I) each represents \u2014CN, \u2014COR1, \u2014COOR2 or \u2014CONR3R4 and Y1 and Y2 may be linked together to form a ring.
6. The optical information recording medium according to claim 1, wherein the hetero ring (A) formed by X1 and X2 in the compound represented by formula (I) comprises a benzodithiol ring which may be further fused with other aromatic rings.
7. The optical information recording medium according to claim 1, further comprising a light reflecting layer, which is separate from the recording layer and is formed from a metal.
8. The optical information recording medium according to claim 1, further comprising a protective layer, which is separate from the recording layer.
9. The optical information recording medium according to claim 1, wherein the hetero ring (A) formed by X1 and X2 in the compound represented by formula (I) comprises a benzothiazoline ring which may be further fused with other aromatic rings.
10. The optical information recording medium according to claim 1, wherein the hetero ring (A) formed by X1 and X2 in the compound represented by formula (I) comprises a benzoxazoline ring which may be further fused with other aromatic rings.
11. The optical information recording medium according to claim 1, wherein Y1 and Y2 in the compound represented by formula (I) each represents \u2014CN, \u2014COR1, \u2014COOR2 or \u2014CONR3R4, wherein Y1 and Y2 are not linked together to form a ring.
12. A method for recording information, comprising the step of: irradiating an optical information recording medium with a laser to record the information; wherein the optical information recording medium comprises:
a substrate; and
a recording layer provided on the substrate, to which recording layer information can be recorded and from which the information can be replayed by laser irradiation,
wherein the substrate comprises a transparent disc-shaped substrate having a pregroove with a track pitch of 0.2 to 0.5 \u03bcm formed thereon, and the recording layer is provided on a surface of a side of the substrate on which surface the pregroove is formed,
wherein the recording layer comprises a compound represented by the following formula
wherein at least one of X1 and X2 is a hetero atom, and X1 and X2 form a five- or six-membered hetero ring (A) selected from the group consisting of benzothiazoline ring, a benzoxazoline ring, and a benzodithiol ring, each of which may be further fused with other aromatic rings;
Y1 and Y2 are substituents, at least one of Y1 and Y2 represents \u2014CN, \u2014COR1, \u2014COOR2, \u2014CONR3R4, \u2014SOR5, \u2014SO2R6 or \u2014SO2NR7R8, each of R1 to R8 represents a hydrogen atom, an alkyl group or an aryl group, and Y1 and Y2 may be linked together to form a ring other than a 2-thiohydantoin ring.
13. The method according to claim 12, wherein the wavelength of the laser is no more than 440 nm.

1461123435-d5eb963c-af8a-4482-9adf-1f57082d034e

1. A tuning peg element for a stringed musical instrument having a wooden peg box, comprising:
a conical fixing part by means of which the tuning peg element is fixable to the peg box in rotatable manner without further auxiliary means and which is of solid construction and is made of a non-fibrous material at least in a region of contact with the peg box.
2. A tuning peg element in accordance with claim 1, wherein the surface pressure on the fixing part is between 3.1 Nmm2 and 4.3 Nmm2 when the tuning peg element is fixed to the peg box.
3. A tuning peg element in accordance with claim 1, wherein the end face of the fixing part is free of recesses.
4. A tuning peg element in accordance with claim 1, wherein a front end face is formed on the fixing part.
5. A tuning peg element in accordance with claim 4, wherein the front end face is closed.
6. A tuning peg element in accordance with claim 4, wherein the front end face is formed by the solid material of the fixing part.
7. A tuning peg element in accordance with claim 1, wherein the fixing part has a region of contact with the peg box which substantially corresponds to that region of the surface which is positioned in a bore in the peg box.
8. A tuning peg element in accordance with claim 1, wherein the fixing part is workable by a tuning peg cutter.
9. A tuning peg element in accordance with claim 8, one or more basic models being provided, from which tuning peg elements of at least one of differing conical slopes and different sizes are producible by means of a tuning peg cutter.
10. A tuning peg element in accordance with claim 1, wherein at least the region of contact of the fixing part is made of a material which is such that the moment of static friction of the fixing part on the peg box and the moment of sliding friction differ by at most 40%.
11. A tuning peg element in accordance with claim 1, wherein at least the region of contact of the fixing part is made of a material which is such that the moment of static friction of the fixing part on the peg box and the moment of sliding friction differ by at most 30%.
12. A tuning peg element in accordance with claim 1, wherein at least the region of contact of the fixing part is made of a material which is such that the moment of static friction of the fixing part on the peg box and the moment of sliding friction differ by at most 20%.
13. A tuning peg element in accordance with claim 1, wherein at least the region of contact of the fixing part is made of a material which is such that the moment of static friction of the fixing part on the peg box is smaller than 400 Nmm.
14. A tuning peg element in accordance with claim 1, wherein at least the region of contact of the fixing part is made of a material which is such that the moment of sliding friction of the fixing part on the peg box is greater than 300 Nmm.
15. A tuning peg element in accordance with claim 1, wherein at least the region of contact of the fixing part is made of a material which is such that the coefficient of static friction differs by at most 25% from the coefficient of sliding friction.
16. A tuning peg element in accordance with claim 1, wherein at least the region of contact of the fixing part is made of a material which is such that the coefficient of static friction with lubrication differs by at most 15% from the coefficient of sliding friction.
17. A tuning peg element in accordance with claim 1, wherein at least the region of contact of the fixing part is made of a material which is such that the coefficient of static friction is smaller than 0.22 without lubrication.
18. A tuning peg element in accordance with claim 1, wherein at least the region of contact of the fixing part is made of a material which is such that the coefficient of sliding friction is smaller than 0.18 without lubrication.
19. A tuning peg element in accordance with claim 1, wherein at least the region of contact of the fixing part is made of a material which is such that the coefficient of static friction with lubrication is smaller than 0.12.
20. A tuning peg element in accordance with claim 1, wherein at least the region of contact of the fixing part is made of a material which is such that the coefficient of sliding friction with lubrication is smaller than 0.11.
21. A tuning peg element in accordance with claim 1, wherein at least the region of contact of the fixing part is made of polyamide.
22. A tuning peg element in accordance with claim 1, wherein the fixing part is formed in one piece.
23. A tuning peg element in accordance with claim 1, said tuning peg element being a one piece construction.
24. A tuning peg element in accordance with claim 1, wherein at least the region of contact of the fixing part is made of a synthetic material.
25. A tuning peg element in accordance with claim 1, wherein at least the region of contact of the fixing part is made by means of an injection moulding process.

The claims below are in addition to those above.
All refrences to claim(s) which appear below refer to the numbering after this setence.

1. A high efficiency piezoelectric single phase uni-polar ultrasonic actuator comprising:
an upper and lower pair of back discs,
a PZT plate interposed between said upper and lower back discs,
an electrode formed on said PZT plate,
a pivotal bolt extending through said upper and lower pair of back discs, and said PZT plate, and
a fixing nut secured to one end of said pivotal bolt, said actuator unit is being supported and fixed with said pivotal bolt and said fixing nut combination by passage of said pivotal bolt coaxially through the center of said actuator unit wherein parametric output variation of said actuator is carried out by asymmetrizing the structure of said actuator by a formation of at least one straight notch having a screw coupled to said upper disc within said notch on an edge of said upper disc such that after said electrode being energized, said actuator produces an unbalanced periodic output force.
2. The actuator as in claim 1, wherein said parametric output variation is carried out by varying number, size (including width and depth), and a location of notch and screw combinations made along the edge of said upper disc.
3. The actuator as in claim 1, wherein the diameter of said PZT plate and said back discs, and the distance from said pivotal bolt to a driving point are variable, said pivotal bolt is formed of friction resistant hardened chromium, and the direction of a driving force is axial, or transverse, or combination of the two.
4. A high efficiency piezoelectric single phase uni-polar ultrasonic actuator comprising:
an upper and lower pair of back discs,
a PZT plate interposed between said upper and lower back discs,
an electrode formed on said PZT plate,
a pivotal bolt extending through said upper and lower pair of back discs, and said PZT plate, and
a fixing nut secured to one end of said pivotal bolt, said actuator unit is being supported and fixed with said pivotal bolt and said fixing nut combination by passage of said pivotal bolt eccentrically through a portion of said actuator unit wherein parametric output variation of said actuator is carried out by asymmetrizing the structure of said actuator by a formation of at least one straight notch having a screw coupled to said upper disc within said notch on an edge of said upper disc such that after said electrode being energized, said actuator produces an unbalanced periodic output force.
5. The actuator as in claim 4, wherein said parametric output variation is carried out by a varying number, size (including width and depth), and a location of said at least one straight notch and screw combination made along the edge of said upper disc.
6. The actuator as in claim 4, wherein said at least one straight notch and screw combination are separated with an equal angular distance.
7. The actuator as in claim 4, wherein the diameter of said PZT plate and said back discs, and the distance from said pivotal bolt to a driving point are variable, said pivotal bolt is formed of friction resistant hardened chromium, and the direction of a driving force is axial, or transverse, or combination of the two.