Yamaha Corporation

Astellas Pharma Gmbh

Noboru Yamashita

Satoshi Inoue

Hitoshi Izutani

Akira Takagi

Maeda Atsushi

Katsumi Saito

Tatsnobu Yoshioka

Keys of a piano are depressed against the total weight of associated action units and hammers so that balance weight pieces are embedded in the front portion of each key; since the wood bar of the key is expandable and shrinkable due to the conditions of the environment, the weight pieces are liable to come loose; the balance weight piece is formed with ridges and valleys repeated at least 7 times at fine pitches equal to or less than 2 millimeters, and the maximum diameter of the ridges is slightly longer than an inner diameter of a hole formed in the wood bar; while the balance weight piece is being pressed into the hole, the ridges make the inner surface portion elastically deformed; when the balance weight piece reaches the target position, the inner surface portion penetrates into the valleys so that the balance weight piece is lodged therein.

Movable part firmly equipped with balance weight, musical instrument and method of assembling balance weight therein

Keys of an acoustic piano require balancers for cancellation of a part of self weight of the action units/hammers; however, the balancers are liable to be dropped off due to the aged deterioration of the wooden bars; in order to keep the balancers stable in the keys against the aged deterioration, the balancer is plastically deformed so as to bite into the wooden bar, the balancer, which is formed with thorns, is rotated so as to make the thorns bite into the wooden bar, the balancer is shaped into a configuration different from the holes so as to exert resilient force on the inner surface in a direction in parallel to the grain of wood, or the balancer is inserted into a constricted hole so as to strongly exert the resilient force on the inner surface, thereby being prevented from the dropping off from the keys.

Keyboard musical instrument having keys equipped with balancers biting into keys and method for securing balancers to keys

The present invention relates to conjugates of a lipid, substrate peptide of an enzyme secreted from the cells of mammals, including humans, and a water-soluble polymer that can be used as colloidal carriers and the like of tissue-specific drug delivery systems, methods of producing these conjugates, peptide-water-soluble polymer conjugates optionally having protective groups that are useful as the intermediates of these conjugates, colloidal carriers made from these conjugates, and tissue-specific drug delivery systems that use these colloidal carriers.

Lipid-peptide-polymer conjugates for long blood circulation and tumor specific drug delivery systems

For preventing a fall board of a keyboard instrument from crashing against a key slip of the keyboard instrument, there is disclosed a fall board assembly comprising (a) a fall board having a boss portion and a covering plate portion extending from the boss portion and (b) a pair of rotary dampers provided between the boss portion of the fall board and side arms of the keyboard instrument, respectively, and operative to allow the fall board to move between first and second angular positions, and the keyboard is covered with the covering plate portion of the fall board in the first angular position but exposed to a player in the second angular position, wherein the rotary dampers produce a damping effect against the rotation of the fall board when the fall board rotates from the second angular position to the first angular position.

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Shizuoka-ken, Japan

Noboru Yamashita