公开(公告)号：JPH07148602A

公开(公告)日：1995-06-13

申请号：JP28019693

申请日：1993-10-13

Applicant: IBM JAPAN ,  KENSEISHIYA KK

Inventor： TANAKA KATSUSHI ,  TSUKAMOTO TAKASHI ,  IKEDA YOSHITAKA ,  ITO OSAMU ,  TAKANO YASUO

IPC: B23B3/28 ,  B23B5/40

Abstract: PURPOSE:To carry out super-precise machining without forming a cutting surface shape into a stepped surface by locating a plurality of axial members as a work piece each over an imaginary spherical surface, and thereby copy feeding a cutting tool along a generating line within a plane surface including the center point of the imaginary spherical surface. CONSTITUTION:A plurality of axial members W as a work piece each are placed in an insertion hole 2 formed around the apex of an imaginary regular polygon K (for example, a triangle) respectively while their respective axial line N are being focused so as to be brought into line with a fixed point 0 over a rotating axial line, and their end faces as a processed face each are also being positioned over an imaginary spherical surface M centering at the fixed point 0 in a machining jig 1. Three each of these work pieces W are simultaneously fixed by locating a presser member 3 at a locating hole 1b formed at the center of a regular triangle. The machining jig 1 is then rotated, and a cutting tool 11 is copy fed along a generating line within a plane surface including the center point of the imaginary spherical surface by a copying mechanism 8 provided with a master plate 13, so that spherical surface machining for the end faces of the work pieces W is thereby carried out.

公开(公告)号：JP2003228972A

公开(公告)日：2003-08-15

申请号：JP2002020563

申请日：2002-01-29

Applicant: IBM ,  KENSEISHA KK

Inventor： HIDAKA KENJI ,  TANAKA KATSUSHI ,  NOTO HIROKAZU ,  TAKANO YASUO

IPC: G11B25/04 ,  G11B33/08 ,  G11B33/12 ,  G11B33/14

Abstract: PROBLEM TO BE SOLVED: To provide an on-vehicle disk drive unit which is hardly affected by variation in the temperature in a cabin and stably operates even when mounted on a car, etc. SOLUTION: The on-vehicle disk drive unit 1 comprises a casing 3 which stores a disk drive 2, a Peltier element 4 as a temperature control means which has its top surface in contact with the casing 3 across an intermediate plate 18, a heat sink 5 which has its base piece 50 in contact with the reverse surface of the Peltier element 4, an electric fan 6 which blows air to the heat sink 5, and a housing 11 in which the casing 3 is stored at an upper part, and the heat sink 5 and the electric fan 6 are fixed at a lower part. COPYRIGHT: (C)2003,JPO

公开(公告)号：JPH06334075A

公开(公告)日：1994-12-02

申请号：JP13991693

申请日：1993-05-20

Applicant: DENKI KAGAKU KOGYO KK ,  IBM JAPAN

Inventor： TAMAKI SHOHEI ,  NISHIKAWA HIROSHI ,  TANAKA KATSUSHI

IPC: F28F3/06 ,  F28F21/04 ,  H01L23/373

Abstract: PURPOSE:To impart flexibility required for thermal expansion and contraction and high thermal conductivity and flame resistance by composing a heat dissipation spacer of a steel reinforced silicone rubber sheet added with silver powder, baron nitride powder and a platinum based flame retardant. CONSTITUTION:The heat dissipation spacer 4 is composed of a steel reinforced silicon rubber sheet dispersed with silver powder, boron nitride powder and a platinum based flame retardant. 7-60 pts.vol of boron nitride powder and total 65-200 pts.vol of silver powder and baron nitride powder is mixed with 100 pts.vol of silicone rubber. The boron nitride prevents the function of the platinum based flame retardant from being damaged by the silver powder. This composition imparts flexibility required for absorbing thermal expansion/ contraction and high thermal conductivity and flame resistance to the heat dissipation spacer.

公开(公告)号：JPH0964552A

公开(公告)日：1997-03-07

申请号：JP20955195

申请日：1995-08-17

Applicant: IBM

Inventor： TSUKAMOTO TAKASHI ,  TANAKA KATSUSHI ,  TAKAYOSHI JUNJI

IPC: H05K5/02 ,  E02D27/34 ,  E04H9/02

Abstract: PROBLEM TO BE SOLVED: To provide an antiseismic supporting structure which can absorb the influence of an earthquake on equipment installed on a fixed floor and can be applied to already existing equipment without requiring any expensive installation cost. SOLUTION: An antiseismic supporting structure has a fixed section 1 which is fixed to a fixed floor, a traveling section 10 which is connected to the section 1 and travels in an arbitrary direction in parallel with the fixed floor, and an equipment connecting section 20 which is connected to the section 10 and equipment installed on the fixed floor. When the shock of an earthquake is very weak, a caster fixing section 27 prevents the movement of the equipment by fixing the caster 30 of the equipment. When the shock of the earthquake is weak or intermediate, the resonance of the equipment is prevented by moving the traveling section 10 in a direction parallel to the fixed floor and, when the shock of an earthquake is strong, the vibration of the section 10 is absorbed by means of a shock absorbing means attached to the outer periphery 4 of the fixed section 1.

公开(公告)号：JPH09162561A

公开(公告)日：1997-06-20

申请号：JP3021196

申请日：1996-02-19

Applicant: IBM

Inventor： TSUKAMOTO TAKASHI ,  SUZUKI HIROSHI ,  SUZUKI AKIRA ,  TANAKA KATSUSHI

IPC: H05K5/02

Abstract: PROBLEM TO BE SOLVED: To provide an earthquake-proof support structure which is capable of restraining an equipment or the like from overturning or moving, reducing the influence of an earthquake on the equipment to an irreducible minimum without transforming a room where the equipment is installed, and being applied to a current equipment or the like. SOLUTION: A support structure having one end which is fixed to a stationary floor and the other end which is connected to an objective structure installed on a floating floor is equipped with a toggle bar 4, a connecting part, and a mounting part 12. The toggle bar 4 is controlled in length as prescribed and possessed of a universal joint at each end. The universal joint is freely rotatable around both a horizontal and a vertical axis. The connecting part is joined to the toggle bar through one of the universal joints and possessed of another universal joint with a vertical rotary part. The mounting part 12 is joined to the connecting part through the other universal joint and made to fix an equipment 10.