Citizen Watch Company, Ltd.

Nissin Food Products Co., Ltd.

Nissan Food Products Co., Ltd.

Kazuo Suzuki

Takanori Nanya

Takayasu Machida

Shigeyuki Takahashi

Takeaki Shimanouchi

Masaki Terada

Masaaki Numata

Shigeki Nunomura

Mamoru Sugimoto

Shuji Fujita

Takashi Abe

Toshiaki Fukushima

Shigeru Futakami

Takahiro Kawada

The actuator device includes a rotation body and a rotation restriction plate. The rotation axis of the rotation body is placed on the rotation axis holding member. The rotation restriction plate is placed on the side opposite the rotation axis holding member with respect to the rotation axis of the rotation body. As a result, when the drive means is operated to move the rotation body thereby causing the abutment of the rotation body and the rotation restriction plate, the rotation axis of the rotation body is always subjected to a force which presses it against the rotation axis holding member, and there is no force which urges the rotation body to be floated up from the rotation axis holding member.

Actuator device

In order to provide the anti-retrovirus active compound with low anti-coagulant action and low cytotoxicity, compounds comprising glycoside or the salt thereof wherein lipid is linked to position 2 of sialic acid having all hydroxyl groups at positions 4, 7, 8 and 9 completely sulfated, or KDN (2-keto-3-deoxy-D-glycero-2-nononic acid) having all hydroxyl groups at positions 4, 5, 7, 8 and 9 completely sulfated are provided.

Compounds having antiviral activity

An actuator apparatus, comprising a rotating shaft supported in a freely rotating condition, a rotor magnet consisting of a permanent magnet which is polarized at two poles and is fastened to the rotating shaft; means for defining a first rotational position when the rotating shaft rotates in one direction; means for defining a second rotational position when the rotating shaft rotates in the other direction; and driving means for driving the rotating shaft and rotor magnet, wherein a self-hold state is formed by yokes arranged so as to form a closed magnetic circuit between the one pole and the other pole of the above-mentioned rotor magnet in at least one of the above-mentioned first rotational position and the second rotational position.

Actuator apparatus

A stator ( ) is made up by bonding a first stator part ( ) made of a high-permeability material to a second stator part ( ) made of a high-permeability material respectively by welding through the intermediary of connections ( ) made of a low-permeability material or a nonmagnetic material, interposed therebetween. Paired recesses ( ) serving as holding torque setting means for holding a rotor ( ) by a magnetic action are formed on the inner periphery of a rotor hole ( ) defined inside the stator ( ) at the position forming an initial phase angle (&thgr; ). A field coil ( ) for excitation is magnetically bonded to opposite ends of the stator ( ), thereby forming a two-pole step motor for a timepiece.

Two-pole step motor for timepiece

A stator ( ) is made up by bonding a first stator part ( ) made of a high-permeability material to a second stator part ( ) made of a high-permeability material respectively by welding through the intermediary of connections ( ) made of a low-permeability material or a nonmagnetic material, interposed therebetween. Paired recesses ( ) serving as holding torque setting means for holding a rotor ( ) by a magnetic action are formed on the inner, periphery of a rotor hole ( ) defined inside the stator ( ) at the position forming an initial phase angle (&thgr; ). A field coil ( ) for excitation is magnetically bonded to opposite ends of the stator ( ), thereby forming a two-pole step motor for a timepiece

2-Pole stepper motor for timepiece

A pair of parallel rectangular windows are punched out in a thin sheet base material having the same thickness as that of a short hand part ( ) including a weight part ( ) of a second hand ( ) so as to form a hand forming part between the pair of windows and a part in the hand forming part forming a long hand part and a mounting part of a hand is pressed so as to form a thin wall part. Then, the second hand in a final shape is punched out from the base material so that a long hand part ( ) and a mounting part ( ) are formed with the thin wall part of the hand forming part and the short hand part ( ) is formed with an original thickness part. Consequently, the second hand for an analog electronic timepiece in which the weight part ( ) is provided on the short hand part ( ) can be easily and securely manufactured only by a press working.

Method of manufacturing hand for analog electronic timepiece

In an analog electronic timepiece in which the rotation of a rotor ( a) step motor ( ) is decelerated through train wheels before it is transmitted an hour hand ( ) and a minute hand ( ), the gravity center of a center wheel composed of a center wheel gear ( ), a center wheel pinion ( ), and a center wheel shaft ( ) to which the minute hand ( ) is mounted is displaced from the axis of the center wheel shaft ( ) to within an angle range of less than &plusmn;90&deg; with respect to the opposite direction to a direction in which a time indicating part ( a) of the minute hand ( ) extends so as to reduce a moment on the center wheel shaft ( ) caused by a combination of the minute hand ( ) and the center wheel. This makes it possible to prevent a hand-skip due to disturbance even if the value of holding energy of the step motor ( ) is reduced.

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Tokorozawa, Japan

Kazuo Suzuki