Inventor
OTSUKI MAKOTO
JP23 patents
⚠️ This page may combine multiple inventors who share the name “OTSUKI MAKOTO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
SUMITOMO ELECTRIC INDUSTRIES
15 patentsUS6749339B1Jun 15, 2004
Hydrodynamic bearing assembly and spindle motor having the same
SUMITOMO ELECTRIC INDUSTRIES18 citations92
US6686673B1Feb 3, 2004
Bearing structures, spindle motor, and hard disk drive
SUMITOMO ELECTRIC INDUSTRIES30 citations92
US6502989B1Jan 7, 2003
Dynamic pressure bearing and spindle motor with the bearing
SUMITOMO ELECTRIC INDUSTRIES23 citations92
US6417590B1Jul 9, 2002
Spindle motor
SUMITOMO ELECTRIC INDUSTRIES22 citations92
US5514903AMay 7, 1996
Compound semiconductor single-crystalline substrate for liquid phase epitaxial growth
SUMITOMO ELECTRIC INDUSTRIES21 citations90
US6702464B1Mar 9, 2004
Dynamic pressure bearing with improved starting characteristics
SUMITOMO ELECTRIC INDUSTRIES18 citations84
US6307295B1Oct 23, 2001
Spindle motor and complex bearing assembly for use with the spindle motor
SUMITOMO ELECTRIC INDUSTRIES15 citations84
US6200035B1Mar 13, 2001
Hydrodynamic gas bearing structure
SUMITOMO ELECTRIC INDUSTRIES16 citations84
US7033078B2Apr 25, 2006
Hydrodynamic bearing assembly and spindle motor having the same
SUMITOMO ELECTRIC INDUSTRIES7 citations74
US6771459B1Aug 3, 2004
Spindle motor and hard disc drive incorporating the same
SUMITOMO ELECTRIC INDUSTRIES7 citations74
US6608415B2Aug 19, 2003
Spindle motor
SUMITOMO ELECTRIC INDUSTRIES11 citations74
US5639299AJun 17, 1997
Method of making compound semiconductor single-crystalline substrate for liquid phase epitaxial growth
SUMITOMO ELECTRIC INDUSTRIES6 citations71
US7360950B2Apr 22, 2008
Hydrodynamic bearing assembly
SUMITOMO ELECTRIC INDUSTRIES2 citations63
US6870289B1Mar 22, 2005
Dynamic-pressure bearing and spindle motor comprising the same
SUMITOMO ELECTRIC INDUSTRIES2 citations63
US6552455B1Apr 22, 2003
Hydrodynamic bearing and spindle motor
SUMITOMO ELECTRIC INDUSTRIES6 citations63
SEIKO EPSON CORP
7 patentsUS7125447B2Oct 24, 2006
Oil-based ink composition for ink-jet recording
SEIKO EPSON CORP64 citations97
US9476507B2Oct 25, 2016
Valve, pressure controlling apparatus, liquid ejecting apparatus, and method of opening and closure valve
SEIKO EPSON CORP5 citations72
US7897656B2Mar 1, 2011
Oil-based white ink for ink jet recording
SEIKO EPSON CORP2 citations60
US10654266B2May 19, 2020
Liquid ejecting head and liquid ejecting apparatus
SEIKO EPSON CORP0 citations52
US8008368B2Aug 30, 2011
Oil-based ink composition for inkjet recording
SEIKO EPSON CORP0 citations51
US10752006B2Aug 25, 2020
Flow path structure body, liquid ejecting apparatus, and liquid ejecting method
SEIKO EPSON CORP0 citations41
US9527301B2Dec 27, 2016
Liquid ejecting apparatus
SEIKO EPSON CORP0 citations41