Inventor · disambiguated record
Hiroshi Ryonai
Also filed as: MIYATA KEIZOU · RYONAI HIROSHI
11 granted patents·1 pending application·480 citations·filing 1993–2013
92Inventor score
Top patents by PatentIndex Score
12 records- 0198US6347016B1Master information carrier, process for producing the carrier, and method and apparatus for recording master information signal on magnetic recording medium by using the carrierMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1997·Granted Feb 12, 2002·292 cites·16 claims
- 0290US6529341B1Magnetic recording/reproduction device using preformat informationMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1998·Granted Mar 4, 2003·67 cites·29 claims
- 0386US6567227B2Master information carrier, method for producing the carrier, method and apparatus for writing information into magnetic record medium using the carrierMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2002·Granted May 20, 2003·14 cites·9 claims
- 0484US6606209B2Master information carrier, method for producing the carrier, method and apparatus for writing information into magnetic record medium using the carrierMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2002·Granted Aug 12, 2003·11 cites·5 claims
- 0577US6242085B1Magnetic recording medium and method for producing the sameMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1998·Granted Jun 5, 2001·30 cites·16 claims
- 0670US8946579B2Touch panelPANASONIC CORP·Filed 2013·Granted Feb 3, 2015·3 cites·19 claims
- 0761US6858328B1Master information supportMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1999·Granted Feb 22, 2005·15 cites·14 claims
- 0861US6611388B1Master information magnetic recorderMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1999·Granted Aug 26, 2003·15 cites·4 claims
- 0955US5636092AMagnetic head having chromium nitride protective film for use in magnetic recording and/or reproducing apparatus and method of manufacturing the sameMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1994·Granted Jun 3, 1997·17 cites·8 claims
- 1053US5475552AMagnetic head having a chromium nitride protective film for use in a magnetic recording and/or reproducing apparatus and a method of manufacturing the sameMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1993·Granted Dec 12, 1995·9 cites·5 claims
- 1146US6714367B1Master information medium and method of master information recordingMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1999·Granted Mar 30, 2004·7 cites·15 claims
- 1238US2006073626A1Method for producing optical element, optical element, and optical element arrayMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2004·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →