公开(公告)号：IT231333Y1

公开(公告)日：1999-08-02

申请号：ITTO930043

申请日：1993-03-03

Applicant: EBARA CORP

Inventor： KONNO DAISUKE ,  NODA YUMIKO

IPC: B41L20060101 ,  F16M20060101

公开(公告)号：DE4397188T1

公开(公告)日：1996-01-11

申请号：DE4397188

申请日：1993-02-09

Applicant: EBARA CORP

Inventor： KONNO DAISUKE ,  NODA YUMIKO

IPC: F16C33/10

公开(公告)号：DE69117267T2

公开(公告)日：1996-10-02

申请号：DE69117267

申请日：1991-11-29

Applicant: EBARA CORP

Inventor： NODA YUMIKO ,  KAMIYA ICHIRO ,  TOSHIMITSU MANABU ,  SATO YOSHIO ,  SHINJO RYOICHI

IPC: B23K26/00 ,  B23K26/40 ,  B28B11/12 ,  F16C17/04 ,  F16C33/04 ,  F16C33/10 ,  F16C33/14 ,  F16C33/24

Abstract: A ceramic hydrodynamic bearing used as a radial or a thrust bearing in a spindle motor for a hard disk driver. The bearing includes a ceramic bearing base having hydrodynamic pressure generating grooves. A sliding surface of the bearing base is irradiated with an energy beam with a high energy density to remove said material, thereby forming hydrodynamic pressure generating groove, and at the same time the grooves are coated with a modification layer that is formed by melting the ceramic material that constitutes said ceramic bearing base with the energy beam and by solidifying said ceramic bearing base.

公开(公告)号：DE69117267D1

公开(公告)日：1996-03-28

申请号：DE69117267

申请日：1991-11-29

Applicant: EBARA CORP

Inventor： NODA YUMIKO ,  KAMIYA ICHIRO ,  TOSHIMITSU MANABU ,  SATO YOSHIO ,  SHINJO RYOICHI

IPC: B23K26/00 ,  B23K26/40 ,  B28B11/12 ,  F16C17/04 ,  F16C33/04 ,  F16C33/10 ,  F16C33/14 ,  F16C33/24

Abstract: A ceramic hydrodynamic bearing used as a radial or a thrust bearing in a spindle motor for a hard disk driver. The bearing includes a ceramic bearing base having hydrodynamic pressure generating grooves. A sliding surface of the bearing base is irradiated with an energy beam with a high energy density to remove said material, thereby forming hydrodynamic pressure generating groove, and at the same time the grooves are coated with a modification layer that is formed by melting the ceramic material that constitutes said ceramic bearing base with the energy beam and by solidifying said ceramic bearing base.

公开(公告)号：DE69017248T2

公开(公告)日：1995-10-26

申请号：DE69017248

申请日：1990-04-11

Applicant: EBARA CORP

Inventor： HISABE YASUSHI ,  OSADA NORIYUKI ,  OHTANI TOSHIHIRO ,  KISHI MASAHIKO ,  SATO YOSHIO ,  KONNO DAISUKE ,  MIWA SACHIHIKO ,  KANAMORI TOSHIYA ,  AIYOSHIZAWA SHUNICHI ,  KASAHARA KAZUYUKI ,  HIROKAWA KAZUTO ,  NODA YUMIKO

IPC: G11B19/20 ,  H02K5/16 ,  H02K7/04

公开(公告)号：ITTO930043U1

公开(公告)日：1994-09-05

申请号：ITTO930043

申请日：1993-03-03

Applicant: EBARA CORP

Inventor： KONNO DAISUKE ,  NODA YUMIKO

IPC: B41L20060101 ,  F16M20060101

公开(公告)号：GB2290355A

公开(公告)日：1995-12-20

申请号：GB9515610

申请日：1993-02-09

Applicant: EBARA CORP

Inventor： KONNO DAISUKE ,  NODA YUMIKO

IPC: F16C33/10 ,  F16C33/74

公开(公告)号：ES2071696T3

公开(公告)日：1995-07-01

申请号：ES90106941

申请日：1990-04-11

Applicant: EBARA CORP

Inventor： HISABE YASUSHI ,  OSADA NORIYUKI ,  OHTANI TOSHIHIRO ,  KISHI MASAHIKO ,  SATO YOSHIO ,  KONNO DAISUKE ,  MIWA SACHIHIKO ,  KANAMORI TOSHIYA ,  AIYOSHIZAWA SHUNICHI ,  KASAHARA KAZUYUKI ,  HIROKAWA KAZUTO ,  NODA YUMIKO

IPC: G11B19/20 ,  H02K5/16 ,  H02K7/04

公开(公告)号：ITTO930151A1

公开(公告)日：1994-09-04

申请号：ITTO930151

申请日：1993-03-03

Applicant: EBARA CORP

Inventor： KONNO DAISUKE ,  NODA YUMIKO

IPC: F16C20060101

公开(公告)号：GB2290355B

公开(公告)日：1996-11-06

申请号：GB9515610

申请日：1993-02-09

Applicant: EBARA CORP

Inventor： KONNO DAISUKE ,  NODA YUMIKO

IPC: F16C33/10 ,  F16C33/74