P

Inventor

TOMIDA KENJI

JP35 patents
⚠️ This page may combine multiple inventors who share the name “TOMIDA KENJI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

HITACHI LTD

15 patents
US5659445AAug 19, 1997

Recording disk apparatus and rotational supporting structure therefor having improved lubrication arrangement

HITACHI LTD67 citations96
US6771460B2Aug 3, 2004

Spindle motor and magnetic disc device using thereof having radial and thrust bearings

HITACHI LTD23 citations92
US6469866B1Oct 22, 2002

Spindle motor and magnetic disc device with hydrodynamic bearing

HITACHI LTD16 citations92
US6356408B1Mar 12, 2002

Magnetic disk apparatus, including spindle motor having air flow passage in hub for pressure balance

HITACHI LTD30 citations92
US6243230B1Jun 5, 2001

Disk drive unit with hydrodynamic fluid bearing unit and disk device with said drive unit

HITACHI LTD19 citations92
US5973878AOct 26, 1999

Recording disk apparatus and rotational supporting structure therefor, having a magnetic lubricant seal which is inclined

HITACHI LTD34 citations92
US5885005AMar 23, 1999

Bearing device and spindle motor provided with the bearing device

HITACHI LTD43 citations92
US6243228B1Jun 5, 2001

Information storage and retrieval device

HITACHI LTD18 citations84
US6697218B2Feb 24, 2004

Information storage and retrieval device

HITACHI LTD7 citations74
US6583950B2Jun 24, 2003

Information storage and retrieval device provided with shock-absorbing mechanism

HITACHI LTD9 citations74
US6369981B2Apr 9, 2002

Disk drive unit with hydrodynamic fluid bearing unit and disk device with said drive unit

HITACHI LTD13 citations74
US6680814B2Jan 20, 2004

Spindle motor and magnetic disc device with hydrodynamic bearings

HITACHI LTD8 citations73
US6369980B2Apr 9, 2002

Disk drive unit with hydrodynamic fluid bearing unit and disk device with said drive unit

HITACHI LTD1 citations63
US6195224B1Feb 27, 2001

Disc device

HITACHI LTD3 citations63
US6407883B2Jun 18, 2002

Disc device

HITACHI LTD0 citations52

TOYOTA MOTOR CO LTD

14 patents

HITACHI GLOBAL STORAGE TECH

2 patents

HGST Netherlands BV

1 patent

SUZUKI TAKAO

1 patent

SAKAGAMI CHIKAKO

1 patent

OTAKE NORITAKA

1 patent