Inventor · disambiguated record
Kuniaki Hirayama
Also filed as: HIRAYAMA KUNIAKI
7 granted patents·1 pending application·84 citations·filing 1988–2004
83Inventor score
Files withHITACHI LTD8
Top patents by PatentIndex Score
8 records- 0178US5637945ABrushless motorHITACHI LTD·Filed 1993·Granted Jun 10, 1997·49 cites·5 claims
- 0262US6108165ARotary drum equipment and recording/reproducing equipment using the sameHITACHI LTD·Filed 1998·Granted Aug 22, 2000·17 cites·36 claims
- 0346US5978185ARotary head and recording/reading apparatus provided with rotary headHITACHI LTD·Filed 1996·Granted Nov 2, 1999·8 cites·57 claims
- 0440US2005168875A1Rotary magnetic head drum apparatusHITACHI LTD·Filed 2004·Application pending·0 cites
- 0536US6195499B1Magnetic recording and/or reproducing apparatusHITACHI LTD·Filed 1999·Granted Feb 27, 2001·3 cites·26 claims
- 0632US5734537ATape guide structure of rotary head drum in recording/reproduction apparatus and method of machining the sameHITACHI LTD·Filed 1996·Granted Mar 31, 1998·1 cites·17 claims
- 0731US5661622ARotary magnetic head cylinder device for reduced vibration and proper head/type alignmentHITACHI LTD·Filed 1996·Granted Aug 26, 1997·3 cites·5 claims
- 0830US4882833AMethod and apparatus for mounting coils inside a hollow cylindrical articleHITACHI LTD·Filed 1988·Granted Nov 28, 1989·3 cites·18 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →