P

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 patents
US5768241AJun 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 patents

OKUDA ISAO

2 patents

NOMURA HIROSHI

2 patents

Showing the top 50 of 57 patents by PatentIndex Score.