Author: claimsbot

1. A hollow golf club head comprising:
a face for hitting a ball having a periphery and a face centroid, and
a face peripheral portion extending rearward of the head from the periphery of the face and provided with only two reduced-rigidity portions,
said each of the reduced-rigidity portions provided on the side of the hollow of the club head and consisting of a concave portion extending along the periphery of the face, said each of the reduced-rigidity portions having a depth in a range of from 0.2 to 1.0 mm and a width in a range of from 0.2 to 3.0 mm in a cross section perpendicular to a longitudinal direction of the concave portion, wherein
in a standard state in which the head is placed on a horizontal plane so that a centerline of a shaft axis of the head is inclined at its lie angle within a vertical plane and the face is held at its loft angle,
the reduced-rigidity portions consist of one toe-side reduced-rigidity portion provided on the toe side of the face centroid and one heel-side reduced-rigidity portion provided on the heel side of the face centroid, and
when the head in the standard state is viewed from a direction of a normal of the face centroid,
said toe-side reduced-rigidity portion has a center point P1 of its length located higher at the toe side of the face centroid, wherein an angle \u03b8t of a first straight line connecting the face centroid with the center point P1 of the toe-side reduced-rigidity portion with respect to the horizontal plane is in a range of from 30 to 45 degrees, and
the heel-side reduced-rigidity portion has a center point P2 of its length located lower and the heel side of the face centroid, wherein an angle \u03b8h of a second straight line connecting the face centroid with the center point P2 of the heel-side reduced-rigidity portion with respect to the horizontal plane is in a range of from 30 to 50 degree.
2. The golf club head according to claim 1, wherein the head comprises:
a cup-shaped face member having the face and a flange portion which extends rearward of the head from the periphery of the face to constitute the face peripheral portion, and
a head main body fixed to a rear side of the face member.
3. The golf club head according to claim 1, wherein said each reduced-rigidity portion has a longitudinal length in a range of from 5 to 60 mm.
4. The golf club head according to claim 1, wherein said reduced-rigidity portions has a smooth curved shape in a cross section perpendicular to the longitudinal of the concave portion.
5. The golf club head according to claim 1, wherein said reduced-rigidity portions are arranged on a corner formed between the face peripheral portion and the face, in a cross section perpendicular to the longitudinal direction of the concave portion.
6. The golf club head according to claim 1, wherein the face peripheral portion is an area within 10 mm from the periphery of the face to the rearward of the head.
7. The golf club head according to claim 1, wherein the angle \u03b8t is smaller than the angle \u03b8h.
8. The golf club head according to claim 1, wherein said toe-side reduced-rigidity portion and said heel-side reduced-rigidity portion have the same longitudinal length.
9. The golf club head according to claim 1, wherein the face peripheral portion has a flat exterior surface so that each of said toe-side reduced-rigidity portion and said heel-side reduced-rigidity portion has a small thickness.

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 level shifter for shifting an input signal from a first power domain having a first supply voltage to a second power domain having a second supply voltage, comprising:
a current mirror circuit that provides an output signal in the second power domain, the current mirror comprising:
first and second p-type transistors coupled to the second supply voltage;
first and second zero threshold n-type transistors coupled to respective ones of the first and second p-type transistors; and
first and second n-type transistors coupled to respective ones of the first and second p-type transistors through respective ones of the first and second zero threshold transistors, the first and second n-type transistors having a threshold voltage based on the first supply voltage; and

a switching control circuit utilizing the first supply voltage that controls the first zero threshold transistor responsive to the input signal.
2. The level shifter circuit of claim 1, wherein the switching control circuit comprises a delay circuit configured to delay the input signal to provide a delayed input signal to control the first zero threshold transistor.
3. The level shifter of claim 2, wherein the delay circuit has a delay corresponding to a delay between a transition in the input signal and a corresponding transition in the output signal.
4. The level shifter of claim 1, wherein a voltage between the source and drain of the first and second n-type transistors is limited to the first supply voltage minus a threshold voltage of the corresponding first and second zero threshold transistors.
5. A level shifter for shifting an input signal from a first power domain having a first supply voltage to a second power domain having a second supply voltage, comprising:
a current mirror circuit that provides an output signal in the second power domain, the current mirror comprising:
first and second p-type transistors coupled to the second supply voltage;
first and second zero threshold n-type transistors coupled to respective ones of the first and second p-type transistors; and
first and second n-type transistors coupled to respective ones of the first and second p-type transistors through respective ones of the first and second zero threshold transistors, the first and second n-type transistors having a threshold voltage based on the first supply voltage;

a switching control circuit utilizing the first supply voltage that controls the first zero threshold transistor responsive to the input signal, wherein the switching control circuit comprises a delay circuit configured to delay the input signal to provide a delayed input signal to control the first zero threshold transistor;
a first inverter utilizing the first supply voltage and configured to receive the input signal and provide an inverted input signal to the first n-type transistor;
a second inverter utilizing the first supply voltage and configured to receive the inverted input signal and provide a buffered input signal to the second n-type transistor; and
a third inverter utilizing the second supply voltage and to provide the output signal.
6. The level shifter of claim 5, wherein the delay circuit comprises at least two series inverters utilizing the first supply voltage.
7. The level shifter of claim 5, wherein the delay circuit comprises:
a fourth inverter utilizing the first supply voltage and configured to receive the input signal and provide a second inverted input signal;
a NOR gate utilizing the first supply voltage and configured to receive the input signal and the second inverted input signal and provide a logical NOR of the input signal and the second inverted input signal to the first zero threshold transistor.
8. The level shifter of claim 5, further comprising a third p-type transistor having a gate coupled to the output of the third inverter and that couples the second supply voltage to the input of the third inverter.
9. The level shifter of claim 5, further comprising a fourth p-type transistor having a gate coupled to the input of the third inverter and couples the second supply voltage to the gates of the first and the second p-type transistors.
10. The level shifter of claim 5, wherein a gate of the second zero threshold transistor is coupled to the output of the second inverter.
11. The level shifter of claim 5, wherein a gate of the second zero threshold transistor is coupled to the first supply voltage.
12. The level shifter of claim 5, wherein the delay circuit has a delay corresponding to a delay between a transition in an output of the first inverter and a corresponding transition in the output signal.
13. A level shifter for shifting an input signal from a first power domain having a first supply voltage to a second power domain having a second supply voltage, comprising:
first and second cross-coupled p-type transistors coupled to the second supply voltage;
first and second zero threshold n-type transistors serially coupled to the first p-type transistor and responsive to an inverted input signal; and
third and fourth zero threshold n-type transistors serially coupled to the second p-type transistor and responsive to an buffered input signal.
14. The level shifter of claim 13, wherein a gate oxide of the first and second cross-coupled p-type transistors and the first, second, third and fourth zero threshold transistors is substantially the same.
15. The level shifter of claim 13, further comprising:
a first inverter utilizing the first supply voltage and configured to receive the input signal and provide the inverted input signal to the first and second zero threshold transistors;
a second inverter utilizing the first supply voltage and configured to receive the inverted input signal and provide the buffered input signal to the third and fourth zero threshold transistors; and
a third inverter utilizing the second supply voltage and to provide the output signal.
16. A level shifter for shifting an input signal from a first power domain having a first supply voltage to a second power domain having a second supply voltage, comprising:
first and second p-type transistors coupled to the second supply voltage having connected gate electrodes;
first and second zero threshold n-type transistors serially coupled to the first p-type transistor and responsive to an inverted input signal;
third and fourth zero threshold n-type transistors serially coupled to the second p-type transistor and responsive to an buffered input signal; and
a switching control circuit utilizing the first supply voltage that controls the first zero threshold transistor responsive to the input signal.
17. The level shifter of claim 16, wherein a gate oxide of the first and second p-type transistors and the first, second, third and fourth zero threshold transistors is substantially the same.
18. The level shifter of claim 16, further comprising:
a first inverter utilizing the first supply voltage and configured to receive the input signal and provide the inverted input signal to the first and second zero threshold transistors;
a second inverter utilizing the first supply voltage and configured to receive the inverted input signal and provide the buffered input signal to the third and fourth zero threshold transistors; and
a third inverter utilizing the second supply voltage and to provide the output signal.
19. The level shifter of claim 18, wherein the switching control circuit comprises at least two series inverters utilizing the first supply voltage.
20. The level shifter of claim 18, wherein the switching control circuit comprises:
a fourth inverter utilizing the first supply voltage and configured to receive the input signal and provide a second inverted input signal;
a NOR gate utilizing the first supply voltage and configured to receive the input signal and the second inverted input signal and provide a logical NOR of the input signal and the second inverted input signal to the first zero threshold transistor.
21. The level shifter of claim 18, further comprising a third p-type transistor having a gate coupled to the output of the third inverter and that couples the second supply voltage to the input of the third inverter.
22. The level shifter of claim 18, further comprising a fourth p-type transistor having a gate coupled to the input of the third inverter and couples the second supply voltage to the gates of the first and the second p-type transistors.
23. The level shifter of claim 16, wherein the switching control circuit comprises a delay circuit that has a delay corresponding to a delay between a transition in the input signal and a corresponding transition in the output signal.

1. A showcase comprising:
an electric heater in a rack for displaying commercial goods,
wherein the rack comprises a metal main body and edge members made of resins.
2. The showcase according to claim 1,
wherein the edge members are mounted to front and rear parts of the main body.
3. The showcase according to claim 2,
wherein mounting portions for mounting a partition member to partition the rack are formed in the edge members.
4. The showcase according to claim 2 or 3,
wherein a mounting portion for mounting a guard to prevent falling of the commercial goods is formed in the edge member mounted to a front edge of the main body.
5. The showcase according to claim 2 or 3,
wherein a mounting portion for mounting a commercial goods indicator is formed in the edge member mounted to the front edge of the main body.
6. The showcase according to any one of claims 1 to 3,
wherein a leader line receiving portion of the electric heater is disposed in the edge member.
7. The showcase according to claim 6,
wherein a cap for converting the leader line receiving portion in a freely openedclosed manner is disposed in the edge member.
8. The showcase according to any one of claims 1 to 3,
wherein an engaging portion is formed to be inserted and fixed in an engaging hole formed in a supporting column to fix the rack, and a groove is formed in a tip of the engaging portion.

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 decorated toothbrush comprising:
a handle having proximal and distal ends, a neck and a head;
bristles attached to said head; and
a decorative pattern on at least a portion of one of said handle, said neck, and said head;
wherein said decorative pattern provides the user with an indication that the user should replace said toothbrush with a new device.
2. A decorated toothbrush as in claim 1, wherein said decorative pattern is representative of an event beginning at a specific time of the calendar year, one of the four seasons of the calendar year, a seasonal occasion, or a holiday.
3. A decorated toothbrush as in claim 2, wherein said toothbrush is one of a plurality of toothbrushes, the others of said plurality of toothbrushes having different decorative patterns.
4. A decorated toothbrush as in claim 1, wherein said decorative pattern is provided on a plastic film in conforming contact with at least a portion of said handle.
5. A method of selling products in a product line, said products all having substantially the same functional characteristics and features, said method comprising:
decorating each product in said product line with a design from one of at least two design categories;
wherein:
said design categories are different from one another to appeal to different and disparate consumer bases; and
at least two design categories contain at least two different designs.
6. A method as in claim 5, further comprising selling at least two said products in a single package, each product having a different design thereon.
7. A method as in claim 5, further comprising selling two said products in a single package, wherein a first of said products has a design selected from more than one design in a first design category, and a second of said products has a design selected from more than one design in a second design category.
8. A method as in claim 7, further comprising varying the contents of said single package such that a plurality of packages are sold with different combinations of designs from said first and second design categories.
9. A plurality of packages of products having substantially the same functional characteristics and features, said products each having an associated decorative element, wherein:
each said associated decorative element is selected from one of a plurality of different design categories;
said design categories are different from one another to appeal to different and disparate consumer bases;
at least two of said design categories include at least two different designs; and
at least two packages contain products with different designs.
10. A plurality of packages of products as in claim 9, wherein:
said at least two packages each contain at least two products; and
each product in a first of said at least two packages has decorative elements different in design from the decorative elements on each product of a second of said at least two packages.
11. An adult toothbrush product line, each adult toothbrush in said product line comprising:
a handle;
a toothbrush head with bristles for cleaning adult teeth; and
a decorative sleeve covering at least a portion of said handle;
wherein said decorative sleeve bears a design selected to appeal to adults.
12. An adult toothbrush product line as in claim 11, wherein said product line includes a plurality of different designs, wherein said designs belong to two or more different design categories, at least two of said design categories including at least two different designs.
13. A method of decorating products of a product line, said method comprising:
associating with each of said products of said product line one of a plurality of designs from a set of designs; and
changing said set of designs on a periodic basis to refresh said product line.
14. The method of claim 13, wherein said set of designs includes at least two categories of different, disparate, distinct, or unrelated design categories to appeal to different, disparate, distinct, or unrelated consumer bases.
15. The method of claim 13, further comprising changing said set of designs more than once per year.
16. The method of claim 15, further comprising changing said set of designs to a different set of designs at least every four months.