Inventor
OKUDA ISAO
JP57 patents
⚠️ This page may combine multiple inventors who share the name “OKUDA ISAO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
ASAHI OPTICAL CO LTD
29 patentsUS5768241AJun 16, 1998
Shutter operating mechanism for magneto-optical disk drive
ASAHI OPTICAL CO LTD39 citations96
US5477386ADec 19, 1995
Optical system for optical disc apparatus including anamorphic prisms
ASAHI OPTICAL CO LTD24 citations93
US5278401AJan 11, 1994
Optical disc apparatus having five light receiving areas for detecting focus error and tracking error
ASAHI OPTICAL CO LTD29 citations93
US5317144AMay 31, 1994
Wave front aberration measuring apparatus having means for adjusting position of collimator lens
ASAHI OPTICAL CO LTD20 citations92
US5157459AOct 20, 1992
Wave front aberration measuring apparatus
ASAHI OPTICAL CO LTD31 citations92
US5297114AMar 22, 1994
Magneto-optic recording/reproduction apparatus for minimizing variation in focusing error signals caused by variation in optical source wavelength
ASAHI OPTICAL CO LTD35 citations91
US5257145AOct 26, 1993
Optical data recording and reproducing apparatus
ASAHI OPTICAL CO LTD26 citations91
US4956833ASep 11, 1990
Objective driving device for an optical disk apparatus
ASAHI OPTICAL CO LTD28 citations91
US5933291AAug 3, 1999
Magnetic head carriage locking system for magneto-optical disk drive
ASAHI OPTICAL CO LTD10 citations82
US5321678AJun 14, 1994
Optical head carriage, tracking mechanism and displacement detecting mechanism
ASAHI OPTICAL CO LTD19 citations81
US6249500B1Jun 19, 2001
Disk loading system for a magneto-optical disk drive
ASAHI OPTICAL CO LTD7 citations74
US6011673AJan 4, 2000
Vertical positioning system for a magnetic head base
ASAHI OPTICAL CO LTD3 citations74
US5905696AMay 18, 1999
Magneto-optical disk drive
ASAHI OPTICAL CO LTD8 citations74
US5896362AApr 20, 1999
Lens Inclination Adjustment System
ASAHI OPTICAL CO LTD12 citations74
US5894370AApr 13, 1999
Inclination monitoring system
ASAHI OPTICAL CO LTD14 citations74
US5883709AMar 16, 1999
Inclination monitoring system including reflection of collimated light
ASAHI OPTICAL CO LTD16 citations74
US5805363ASep 8, 1998
Collimating lens unit
ASAHI OPTICAL CO LTD14 citations74
US5617387AApr 1, 1997
Optical system for optical information recording/reproducing apparatus
ASAHI OPTICAL CO LTD11 citations74
US5608709AMar 4, 1997
Beam splitter arrangement for magneto-optical recording device
ASAHI OPTICAL CO LTD7 citations74
US5587973ADec 24, 1996
Magneto-optical disk drive system with magnetic head retracting mechanism and manual cartridge ejecting mechanism
ASAHI OPTICAL CO LTD14 citations74
US5577008ANov 19, 1996
Magneto-optical disk drive system
ASAHI OPTICAL CO LTD8 citations74
US5416753AMay 16, 1995
Magneto-optical disk drive system with head position adjustability
ASAHI OPTICAL CO LTD11 citations74
US5373437ADec 13, 1994
Device for and method of reducing cross talk in optical disk device
ASAHI OPTICAL CO LTD11 citations74
US5309423AMay 3, 1994
Magneto-optical reproducing device with optical system having two reflective elements and providing phase difference cancellation
ASAHI OPTICAL CO LTD15 citations74
US5280464AJan 18, 1994
Optical disk apparatus having a focusing error correcting system
ASAHI OPTICAL CO LTD10 citations74
US6243333B1Jun 5, 2001
Magneto-optical disk drive
ASAHI OPTICAL CO LTD5 citations63
US5995333ANov 30, 1999
Positioning a magnetic head base of a magneto-optical disk drive
ASAHI OPTICAL CO LTD2 citations63
US5970037AOct 19, 1999
Magneto-optical disk apparatus
ASAHI OPTICAL CO LTD6 citations63
US5544144AAug 6, 1996
Optical head structure having compactly arranged parts
ASAHI OPTICAL CO LTD6 citations63
PENTAX CORP
17 patentsUS6665129B2Dec 16, 2003
Lens barrel and a zoom lens barrel
PENTAX CORP71 citations96
US6643074B2Nov 4, 2003
Lens barrel
PENTAX CORP15 citations93
US6636362B2Oct 21, 2003
Lens barrel
PENTAX CORP15 citations93
US6956615B2Oct 18, 2005
Structure for mounting a solid-state imaging device
PENTAX CORP39 citations92
US6853500B2Feb 8, 2005
Retracting mechanism of a zoom lens barrel
PENTAX CORP17 citations84
US6819502B2Nov 16, 2004
Structure of a zoom lens barrel
PENTAX CORP17 citations84
US6519096B2Feb 11, 2003
Lens barrel
PENTAX CORP13 citations84
US7099088B2Aug 29, 2006
Lens drive mechanism
PENTAX CORP10 citations74
US7088524B2Aug 8, 2006
Lens barrel having a lens barrier mechanism
PENTAX CORP10 citations74
US6963455B2Nov 8, 2005
Lens barrel
PENTAX CORP10 citations74
US6954314B2Oct 11, 2005
Cam mechanism of a lens barrel
PENTAX CORP9 citations74
US6919995B2Jul 19, 2005
Light shielding structure of a retractable lens barrel
PENTAX CORP8 citations74
US6888685B2May 3, 2005
Retracting mechanism of a zoom lens barrel
PENTAX CORP7 citations74
US6788475B2Sep 7, 2004
Lens barrel having a lens barrier mechanism
PENTAX CORP5 citations74
US6661579B2Dec 9, 2003
Beam splitting for camera using a multilayer film
PENTAX CORP9 citations74
US6624955B2Sep 23, 2003
Lens barrel
PENTAX CORP12 citations74
US7212352B2May 1, 2007
Cam mechanism of a lens barrel
PENTAX CORP4 citations63
OKUDA ISAO
2 patentsNOMURA HIROSHI
2 patentsShowing the top 50 of 57 patents by PatentIndex Score.