Abstract: A forming die assembly for microcomponents includes a forming die and a punch. The forming die is formed with a cavity, a punch hole connected to the cavity, and a supply path for supplying a raw material with a metal powder and a binder having plasticity. The supply path is connected to the cavity so as to have a gate therebetween and is used for supplying the raw material into the cavity. The punch is slidably inserted into the punch hole, and it opens and closes the gate by reciprocatory sliding. The punch closes the gate and compresses the raw material in the cavity into a green compact by sliding in the direction of the cavity.

Abstract: The cross-sectional shape of a main part except for both end portions is generally divided into a lower arc surface extending along a base circle and an upper arc surface of which a top portion corresponds to the base circle. Side edge portions extending inward from the base circle are formed on both side surfaces of the upper arc surface. Curved edge portions which concavely curves upward from the side edge portions to end surfaces and continues to the end surfaces and chamfer portions extending from the end surfaces to the side surfaces which planes the edges and curves so that width thereof gradually narrows, are formed on both ends in a longitudinal direction.

Abstract: A forming die assembly for microcomponents includes a forming die, a plunger, and a punch. The forming die is formed with a cavity, a storage portion for storing a raw material with a metal powder and a binder having plasticity, and a punch hole that connects the cavity and the storage portion so as to form a gate therebetween. The plunger is formed so as to be slidably inserted into the storage portion and to fill the raw material stored in the storage portion into the cavity through the punch hole. The punch is slidably inserted into the plunger in the sliding direction of the plunger and opens and closes the gate by reciprocatory sliding. The punch closes the gate and compresses the raw material in the cavity into a green compact by sliding in the direction of the cavity.

Abstract: A forming die assembly for microcomponents includes a forming die, a plunger, and a punch. The forming die is formed with an outer die, an inner die, a storage portion formed at the inner die, and a punch hole formed at the inner die. The inner die slidably inserted into the outer die forms a part of a cavity between the inner die and the outer die. The storage portion stores a raw material with a metal powder and a binder having plasticity. The punch hole connects the cavity and the storage portion and forms a gate therebetween. The plunger slidably inserted into the storage portion fills the raw material stored in the storage portion into the cavity through the punch hole. The punch is slidably inserted into the plunger, and it closes the gate and compresses the raw material in the cavity.

Abstract: A forming die assembly for microcomponents includes a forming die, a plunger, and a punch. The forming die is formed with an outer die, an inner die, a storage portion formed at the inner die, and a punch hole formed at the inner die. The inner die slidably inserted into the outer die forms a part of a cavity between the inner die and the outer die. The storage portion stores a raw material with a metal powder and a binder having plasticity. The punch hole connects the cavity and the storage portion and forms a gate therebetween. The plunger slidably inserted into the storage portion fills the raw material stored in the storage portion into the cavity through the punch hole. The punch is slidably inserted into the plunger, and it closes the gate and compresses the raw material in the cavity.

Abstract: A forming die assembly for microcomponents includes a forming die, a plunger, and a punch. The forming die is formed with a cavity, a storage portion for storing a raw material with a metal powder and a binder having plasticity, and a punch hole that connects the cavity and the storage portion so as to form a gate therebetween. The plunger is formed so as to be slidably inserted into the storage portion and to fill the raw material stored in the storage portion into the cavity through the punch hole. The punch is slidably inserted into the plunger in the sliding direction of the plunger and opens and closes the gate by reciprocatory sliding. The punch closes the gate and compresses the raw material in the cavity into a green compact by sliding in the direction of the cavity.

Abstract: A forming die assembly for microcomponents includes a forming die and a punch. The forming die is formed with a cavity, a punch hole connected to the cavity, and a supply path for supplying a raw material with a metal powder and a binder having plasticity. The supply path is connected to the cavity so as to have a gate therebetween and is used for supplying the raw material into the cavity. The punch is slidably inserted into the punch hole, and it opens and closes the gate by reciprocatory sliding. The punch closes the gate and compresses the raw material in the cavity into a green compact by sliding in the direction of the cavity.

Abstract: The cross-sectional shape of a main part except for both end portions is generally divided into a lower arc surface extending along a base circle and an upper arc surface of which a top portion corresponds to the base circle. Side edge portions extending inward from the base circle are formed on both side surfaces of the upper arc surface. Curved edge portions which concavely curves upward from the side edge portions to end surfaces and continues to the end surfaces and chamfer portions extending from the end surfaces to the side surfaces which planes the edges and curves so that width thereof gradually narrows, are formed on both ends in a longitudinal direction.

Abstract: The object of the present invention is to provide a hydrodynamic bearing, a method for manufacturing the same, and a spindle motor, with which the gap in the axial direction required for the smooth operation of a bearing can be sufficiently ensured. A method for manufacturing a hydrodynamic bearing comprising a shaft, a sleeve attached so as to be capable of relative rotation with respect to the shaft, a first flange unit 6 fixed to or integrated with the shaft, and a second flange unit fixed to the shaft, the method comprising at least inserting the shaft into the sleeve, and inserting the shaft into the second flange unit, pressing the top face of the second flange unit in the axial direction, and fixing the second flange unit to the shaft by welding the shaft and the second flange unit while maintaining the pressing state.

Abstract: The object of the present invention is to provide a hydrodynamic bearing, a method for manufacturing the same, and a spindle motor, with which the gap in the axial direction required for the smooth operation of a bearing can be sufficiently ensured. A method for manufacturing a hydrodynamic bearing comprising a shaft 7, a sleeve 8 attached so as to be capable of relative rotation with respect to the shaft 7, a first flange unit 6 fixed to or integrated with the shaft 7, and a second flange unit 9 fixed to the shaft 7, the method comprising at least inserting the shaft 7 into the sleeve 8, and inserting the shaft 7 into the second flange unit 9, pressing the top face of the second flange unit 9 in the axial direction, and fixing the second flange unit 9 to the shaft 7 by welding the shaft 7 and the second flange unit 9 while maintaining the pressing state.

Abstract: The object of the present invention is to provide a hydrodynamic bearing, a method for manufacturing the same, and a spindle motor, with which the gap in the axial direction required for the smooth operation of a bearing can be sufficiently ensured. A method for manufacturing a hydrodynamic bearing comprising a shaft 7, a sleeve 8 attached so as to be capable of relative rotation with respect to the shaft 7, a first flange unit 6 fixed to or integrated with the shaft 7, and a second flange unit 9 fixed to the shaft 7, the method comprising at least inserting the shaft 7 into the sleeve 8, and inserting the shaft 7 into the second flange unit 9, pressing the top face of the second flange unit 9 in the axial direction, and fixing the second flange unit 9 to the shaft 7 by welding the shaft 7 and the second flange unit 9 while maintaining the pressing state.

Abstract: The invention aims at upgrading the operability of a portable telephone set by providing a linkage between the telephone function and the internet connection function. The invention provides call connection request acceptance means and system control means in a portable telephone set equipped with internet information transmission/reception means and call means to make possible conversation via a call during internet connection; output means to facsimile and internet information storage means to allow internet information to be output to a facsimile; telephone number/e-mail address storage means to report an unanswered terminating call to a specified mail address; reading-off means to read off internet information as a voice; and timer means, image input means and voice input means to send audio, image and/or video information cyclically or on demand.