Inventor

YOHDA HIROSHI

JP13 patents

Patents

13 patents

US5500777AMar 19, 1996

Magnetic head drive which uses independently controlled piezo-electric elements

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD61 citations96

US4897748AJan 30, 1990

Magnetic head for azimuth recording in a high density magnetic recording system

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD28 citations92

US4745506AMay 17, 1988

Magnetic head for perpendicular magnetic recording and reproduction

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD25 citations92

US5543990AAug 6, 1996

Multitrack magnetic head assembly for scanning a magnetic tape with a plurality of magnetic head tips

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD6 citations73

US5426550AJun 20, 1995

Multitrack magnetic head assembly for scanning a magnetic tape with a plurality of magnetic head tips

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD12 citations73

US5065267ANov 12, 1991

Multi-track magnetic head having different height head chips

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD16 citations73

US4985797AJan 15, 1991

Magnetic head

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD6 citations73

US4868698ASep 19, 1989

Magnetic head

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD14 citations73

US6804072B1Oct 12, 2004

Recording head clogging detection method and its device

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD7 citations69

US6690879B2Feb 10, 2004

Magnetic recording and reproducing apparatus of helical scan type

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD3 citations62

US5508945AApr 16, 1996

Levitation phenomenon analyzer and magnetic recording apparatus including levitation phenomenon analyzer

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD4 citations61

US4985796AJan 15, 1991

Magnetic head with a tape contacting surface having a metal filled channel therein

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD4 citations61

US4890379AJan 2, 1990

Method for manufacturing magnetic head

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD5 citations60