Tsumita; Norikazu

Patent Applications and Registrations

Patent applications and USPTO patent grants for Tsumita; Norikazu.The latest application filed is for "magnetic recording media for longitudinal recording, process for producing the same and magnetic memory apparatus".

Company Profile

0.9.1

Tsumita; Norikazu - Kanagawa JP
Tsumita; Norikazu - Kanagawa-ken JP
Tsumita; Norikazu - Higashiyamato JP
Tsumita; Norikazu - Kodaira JP

*profile and listings may contain filings by different individuals or companies with the same name. Review application materials to confirm ownership/assignment.

Patent Activity

Patent	Date
Magnetic recording media for longitudinal recording, process for producing the same and magnetic memory apparatus Grant 6,627,253 - Suzuki , et al. September 30, 2	2003-09-30
Magnetic recording media for longitudinal recording Grant 6,335,103 - Suzuki , et al. January 1, 2	2002-01-01
Magnetic recording media for longitudinal recording, process for producing the same and magnetic memory apparatus App 20010053458 - Suzuki, Hiroyuki ; et al.	2001-12-20
Longitudinal magnetic recording media and magnetic memory units Grant 5,147,732 - Shiroishi , et al. September 15, 1	1992-09-15
Magnetic recording media for longitudinal recording, process for producing the same and magnetic memory apparatus Grant 5,143,794 - Suzuki , et al. September 1, 1	1992-09-01
Magnetic recording medium and method of producing same Grant 4,950,548 - Furusawa , et al. August 21, 1	1990-08-21
Magnetic recording medium Grant 4,833,020 - Shiroishi , et al. May 23, 1	1989-05-23
Perpendicular magnetic recording medium and fabrication method therefor Grant 4,743,491 - Asada , et al. May 10, 1	1988-05-10
Ion implanting method Grant 4,404,233 - Ikeda , et al. September 13, 1	1983-09-13
Method of forming a microscopic pattern Grant 4,288,283 - Umezaki , et al. September 8, 1	1981-09-08

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