Inventor · disambiguated record
Katsunobu Yamamoto
Also filed as: YAMAMOTO KATSUNOBU · YAMASHITA KEITARO
5 granted patents·63 citations·filing 1977–1979
81Inventor score
Technology areasH01F
Files withHITACHI METALS LTD5
Top patents by PatentIndex Score
5 records- 0175US4169998AIron core assembly for magnetizing columnar permanent magnets for use in electrostatic developing apparatusHITACHI METALS LTD·Filed 1977·Granted Oct 2, 1979·18 cites·4 claims
- 0270US4166263AMagnetic core assembly for magnetizing columnar permanent magnet for use in electrostatic developing apparatusHITACHI METALS LTD·Filed 1977·Granted Aug 28, 1979·16 cites·5 claims
- 0363US4168481ACore assembly for magnetizing columnar permanent magnet for use in an electrostatic developing apparatusHITACHI METALS LTD·Filed 1977·Granted Sep 18, 1979·12 cites·4 claims
- 0456US4266328ADeveloping roll for use in electrostatic developing apparatus employing magnetic particlesHITACHI METALS LTD·Filed 1979·Granted May 12, 1981·9 cites·2 claims
- 0552US4167718ADies set for magnetizing outer surface of magnetic columnHITACHI METALS LTD·Filed 1977·Granted Sep 11, 1979·8 cites·4 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →