Inventor · disambiguated record
Osamu Shigenai
Also filed as: SHIGENAI OSAMU
9 granted patents·73 citations·filing 1984–1997
86Inventor score
Files withALPS ELECTRIC CO LTD9
Top patents by PatentIndex Score
9 records- 0171US4792245ABearing deviceALPS ELECTRIC CO LTD·Filed 1987·Granted Dec 20, 1988·29 cites·4 claims
- 0261US5005092AShutter opening deviceALPS ELECTRIC CO LTD·Filed 1989·Granted Apr 2, 1991·12 cites·2 claims
- 0353US4672490ARecording and reproducing device for magnetic disc including a head damping deviceALPS ELECTRIC CO LTD·Filed 1984·Granted Jun 9, 1987·8 cites·1 claims
- 0448US4724497AEject button unit for a disk recording and reproducing deviceALPS ELECTRIC CO LTD·Filed 1985·Granted Feb 9, 1988·8 cites·5 claims
- 0541US5796696AChassis with strengthening rib having stepped section for recording and/or reproducing apparatusALPS ELECTRIC CO LTD·Filed 1995·Granted Aug 18, 1998·6 cites·5 claims
- 0636US4734801ARetaining device for an eject lever of a disk recording and reproducing apparatusALPS ELECTRIC CO LTD·Filed 1985·Granted Mar 29, 1988·4 cites·3 claims
- 0734US4661869ADisk recording and reproducing device having a disk loading and slide ejector mechanismALPS ELECTRIC CO LTD·Filed 1985·Granted Apr 28, 1987·4 cites·4 claims
- 0832US4796118AWelded leaf spring mounting for magnetic head assembly of disk drive apparatusALPS ELECTRIC CO LTD·Filed 1987·Granted Jan 3, 1989·2 cites·3 claims
- 0926US5940248AMechanism in disk drive apparatus for preventing insertion of a disk cartridge when the shutter disk cartridge is closedALPS ELECTRIC CO LTD·Filed 1997·Granted Aug 17, 1999·0 cites·8 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →