Inventor · disambiguated record
Yoshiaki Katsuyama
Also filed as: KATSUYAMA YOSHIAKI
8 granted patents·153 citations·filing 1983–1992
88Inventor score
Files withSUMITOMO SPEC METALS8
Top patents by PatentIndex Score
8 records- 0186US4608293AComposite substrate for a thin-film magnetic headSUMITOMO SPEC METALS·Filed 1983·Granted Aug 26, 1986·29 cites·5 claims
- 0281US4875987AGrooved magnetic substrates and method for producing the sameSUMITOMO SPEC METALS·Filed 1988·Granted Oct 24, 1989·25 cites·12 claims
- 0378US4690846ARecording disk substrate members and process for producing sameSUMITOMO SPEC METALS·Filed 1985·Granted Sep 1, 1987·23 cites·8 claims
- 0475US4808455AMagnetic recording disc and process for producing the sameSUMITOMO SPEC METALS·Filed 1986·Granted Feb 28, 1989·20 cites·21 claims
- 0573US4659606ASubstrate members for recording disks and process for producing sameSUMITOMO SPEC METALS·Filed 1985·Granted Apr 21, 1987·32 cites·17 claims
- 0667US4859638AMagnetic head sliders, materials therefor, and the process for the production thereofSUMITOMO SPEC METALS·Filed 1988·Granted Aug 22, 1989·16 cites·12 claims
- 0756US4777074AGrooved magnetic substrates and method for producing the sameSUMITOMO SPEC METALS·Filed 1986·Granted Oct 11, 1988·8 cites·6 claims
- 0829US5302560AProcess for the production of magnetic head slidersSUMITOMO SPEC METALS·Filed 1992·Granted Apr 12, 1994·0 cites·34 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →