Patent application number | Description | Published |
20090013850 | Drum - A drum is formed using a drum shell having openings at both ends thereof, across which drumheads are stretched under tension. At least one air hole is formed at a prescribed position of the exterior surface of the drum shell, allowing air flow to occur between the inside and the outside of the drum shell. At least one tone color change member, which is composed of cloth and rubber sheets, is attached to the interior wall of the drum shell in connection with the air hole; hence, the air hole is closed by the tone color change member. Thus, it is possible to appropriately change the tone color of drum sound without substantially changing the size of the drum, which can be designed similar to any types of conventionally known drums. | 01-15-2009 |
20090173209 | SHELL FOR DRUM AND DRUM USING THE SAME - A shell for drum according to the present invention includes a laminated plywood-panel including a plurality of single-panels having different densities, the plurality of single-panels being jointed in decreasing order of density from a center portion in a thick direction of the laminated plywood-panel toward an outermost portion and an innermost portion, such that a single-panel having a highest density is arranged at the center portion, and single-panels having lowest densities are arranged at the outermost portion and the innermost portion. | 07-09-2009 |
20110100193 | SNARE STRAINER - A snare strainer adapted to a snare drum is equipped with two strainers, which are attached to the opposite positions on the circumferential exterior of a cylinder of the snare drum and which control a snappy member to be selectively brought into contact with or separated from the backside head opposite to the drumhead. Herein, a moving base vertically moves along a fixed base attached to the circumferential exterior of the cylinder; holding members, which are tightly joined together so as to hold the terminal of the snappy member, are supported by a support member fixed to the moving base. The holding members are engaged with the support member due to a magnetic attraction exerted by permanent magnets. This makes it possible for the person to detachably attach the holding members to the support member without using tools; hence, it is possible to improve the handling of the snare strainer. | 05-05-2011 |
Patent application number | Description | Published |
20090205478 | Key and Keyboard Apparatus - A key having a key-depression surface with a woody characteristic and durability without the need of a surface treatment and capable of being formed from a simple-shaped uncompressed wood. A key for use as a black key includes a resin part and a compressed wood part secured at its lower surface to an upper surface of the resin part. The compressed wood part is used to constitute a portion of a key top including an upper surface and positioned above an upper surface of white keys which are in a non-key-depression state. The compressed wood part is obtained by compression molding of unprocessed wood. The compressed density in the vertical direction in the compressed wood part is higher toward rearward from a front end of the compressed wood part. | 08-20-2009 |
20100005946 | DRUM SHELL - A drum shell is constituted of at least one laminate wood in which at least one fiber-reinforced layer (e.g. a carbon fabric) is inserted between two wooden materials via the adhesive and which is rolled up in a cylindrical shape. By setting the mass per unit area of the fiber-reinforced layer ranging from 5 g/m | 01-14-2010 |
20100199831 | ACOUSTIC TIMBER FOR MUSICAL INSTRUMENT - An acoustic timber for use in an acoustic musical instrument is constituted of a plurality of woody members, such as woody fibers, woody veneers, blasted bamboo fibers, and defibrated bamboo fibers, whose fiber length is 50 mm or more. An epoxy resin is impregnated into the woody members with an impregnation factor of 5 weight-percent through 50 weight-percent. The woody members impregnated with the epoxy resin are joined together by way of heating and compressive molding so that the fibers thereof are uniformly aligned in the desired fiber-aligning direction. | 08-12-2010 |
20110100196 | KEY AND KEYBOARD APPARATUS - A key having a key-depression surface with a woody characteristic and durability without the need of a surface treatment and capable of being formed from a simple-shaped uncompressed wood. A key for use as a black key includes a resin part and a compressed wood part secured at its lower surface to an upper surface of the resin part. The compressed wood part is used to constitute a portion of a key top including an upper surface and positioned above an upper surface of white keys which are in a non-key-depression state. The compressed wood part is obtained by compression molding of unprocessed wood. The compressed density in the vertical direction in the compressed wood part is higher toward rearward from a front end of the compressed wood part. | 05-05-2011 |