Inventor
KATSUYAMA YOSHIAKI
JP8 patents
Patents
8 patentsUS4875987AOct 24, 1989
Grooved magnetic substrates and method for producing the same
SUMITOMO SPEC METALS25 citations92
US4659606AApr 21, 1987
Substrate members for recording disks and process for producing same
SUMITOMO SPEC METALS32 citations92
US4608293AAug 26, 1986
Composite substrate for a thin-film magnetic head
SUMITOMO SPEC METALS29 citations92
US4859638AAug 22, 1989
Magnetic head sliders, materials therefor, and the process for the production thereof
SUMITOMO SPEC METALS16 citations81
US4808455AFeb 28, 1989
Magnetic recording disc and process for producing the same
SUMITOMO SPEC METALS20 citations81
US4690846ASep 1, 1987
Recording disk substrate members and process for producing same
SUMITOMO SPEC METALS23 citations81
US4777074AOct 11, 1988
Grooved magnetic substrates and method for producing the same
SUMITOMO SPEC METALS8 citations73
US5302560AApr 12, 1994
Process for the production of magnetic head sliders
SUMITOMO SPEC METALS0 citations51