公开(公告)号：EP1666763A4

公开(公告)日：2008-10-22

申请号：EP04787867

申请日：2004-09-10

申请人： SINTOKOGIO LTD ,  ISHIDA YUKIO ,  LIU JUN

发明人： ISHIDA YUKIO ,  LIU JUN ,  UCHIMURA SHOJI ,  MORIMITSU HIDEKI ,  ISHIGURO HIROHIDE

IPC分类号： F16F15/04 ,  F16F15/073

CPC分类号： D06F37/20 ,  B04B9/12 ,  B04B9/14 ,  F16F15/073

摘要： A device for damping runout vibration of a rotating shaft system at least including a rotating shaft and a rotating body rotatably supported by the shaft. A ring (24) is provided outside a bearing (23) fitted on a rotating shaft with a clearance between the ring and an outer ring of the bearing. A vibration damping mechanism includes, in order to suppress runout vibration of a rotating shaft system from the radially outside of the ring (24), a blade spring (25) compressed by a preload and a stopper (26) for setting an operation limit of the blade spring.

公开(公告)号：EP2527675A4

公开(公告)日：2017-10-25

申请号：EP10843916

申请日：2010-09-13

申请人： SINTOKOGIO LTD

发明人： UCHIMURA SHOJI ,  ITO MAMORU

IPC分类号： F16C29/02 ,  F16C32/06

CPC分类号： F16C32/0614 ,  F16C29/025

摘要： A highly accurate static-pressure bearing apparatus that prevents vibrations may be achieved by configuring the apparatus comprising an orifice and a vent groove, etc., such that a laminar-flow status may be maintained in the entire region of the routes of the ventilated pressurized gas. A stage equipped with the static-pressure bearing apparatus is also provided. The configurations, such as the shapes of the orifice 14, vent groove 11, and the exhaust groove 12, etc., of the static-pressure bearing apparatus 1, are designed such that a laminar flow may be maintained in the entire region of the routes for ventilation of the pressurized gas. The vent groove 11 comprises the circular groove 11b and a plurality of distributing grooves 11a. The vent groove 11 is formed to be symmetrical about the centerline of the direction that the moving body 10 moves. The circular groove 11b is formed as a circle to surround the orifice 14. The plurality of distributing grooves 11a extend radially from the orifice 14 to the circular groove11b such that the plurality of distributing grooves 11a connect the circular groove 11b and the orifice 14.

公开(公告)号：EP1637258A4

公开(公告)日：2007-04-25

申请号：EP04733674

申请日：2004-05-18

申请人： JAPAN SCIENCE & TECH AGENCY ,  UNIV NAGOYA NAT UNIV CORP ,  SINTOKOGIO LTD

发明人： SAKA HIROYASU ,  MOON WON JIN ,  UCHIMURA SHOJI ,  ITO TOSHIRO

IPC分类号： B24C1/10 ,  B23B27/00 ,  C04B35/10 ,  C04B35/584 ,  C23C30/00

CPC分类号： C23C30/005 ,  B22F2003/166 ,  C04B35/584 ,  C04B2235/96 ,  C04B2235/9607 ,  C04B2235/963

摘要： A ceramic sintered material cutting tool, characterized in that it has a dislocation structure which formed on the surface thereof in a straight line form and distributed uniformly in a dislocation density of 1 x 10 to 9 x 10 cm . The cutting tool is improved in a fracture toughness value and the resistance to thermal shock and thus has a prolonged life. The above cutting tools include, in particular, a twist drill and a throw away tip.