Inventor · disambiguated record
Mitsuyoshi Kawaguchi
Also filed as: KAWAGUCHI MITSUYOSHI
10 granted patents·1 pending application·41 citations·filing 1998–2017
86Inventor score
Top patents by PatentIndex Score
11 records- 0185US7017170B2Disk cartridge with inner shell supported for rotation in guide groove formed in an upper shellSONY CORP·Filed 2002·Granted Mar 21, 2006·15 cites·6 claims
- 0281US7127732B2Disc cartridge including an inner shell formed by severing a molded portion and a flanged thin-walled sectionSONY CORP·Filed 2005·Granted Oct 24, 2006·3 cites·2 claims
- 0381US7103900B2Disc cartridge with crank-shaped dust intrusion prohibiting unitSONY CORP·Filed 2005·Granted Sep 5, 2006·3 cites·5 claims
- 0476US7103898B2Method for producing inner shell for a disc cartridgeSONY CORP·Filed 2005·Granted Sep 5, 2006·2 cites·1 claims
- 0569US6944875B2Disc cartridge with shutter overlapping gap having labyrinth shaped portion spaced to have a recessed dust deposition portionSONY CORP·Filed 2003·Granted Sep 13, 2005·7 cites·4 claims
- 0668US7284254B2Disk cartridge and disk recording medium device having shutter membersSONY CORP·Filed 2002·Granted Oct 16, 2007·7 cites·39 claims
- 0763USRE43454EDisc cartridge including an inner shell formed by severing a molded portion and a flanged thin-walled sectionIWAKI YUJI·Filed 2008·Granted Jun 5, 2012·0 cites·3 claims
- 0861US7057854B2Disk cartridge having a dust-proof shutterSONY CORP·Filed 2002·Granted Jun 6, 2006·4 cites·22 claims
- 0947US2021107734A1Member contacting chemical liquid for semiconductor product manufacture when chemical liquid is caused to flowSUN FLUORO SYSTEM CO LTD·Filed 2017·Application pending·0 cites
- 1038US7231646B2Disk-drive deviceSONY CORP·Filed 2002·Granted Jun 12, 2007·0 cites·3 claims
- 1128US6285820B1Video tape recorderSONY CORP·Filed 1998·Granted Sep 4, 2001·0 cites·5 claims
Join the waitlist — get patent alerts
Get an alert when Mitsuyoshi Kawaguchi files or is granted a new patent.
We store only your email — no account needed. See our privacy policy.
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →