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Akira Ushimaru

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Publication

Featured researches published by Akira Ushimaru.

Archive | 1990

Magnetic recording medium containing a polyurethane resin having a modified amine acid incorporated into the resin

Akira Ushimaru; Hiroshi Hashimoto

Archive | 1990

Magnetic recording medium comprising a lower magnetic layer containing an amine modified vinyl chloride copolymer and an upper magnetic layer containing a vinyl chloride copolymer with a polar group

Hiroshi Hashimoto; Akira Ushimaru; Masatoshi Takahashi

Archive | 1992

Magnetic recording medium comprising ferromagnetic particles having crystallite size of less than 450 angstroms and a specified polyurethane binder

Hiroshi Hashimoto; Akira Ushimaru

Archive | 1991

Magnetic recording medium having specific subbing layers and process for recovery and processing thereof

Akira Ushimaru; Hiroshi Hashimoto; Kazuko Hanai; Keiichi Suzuki

Archive | 1991

Magnetic recording medium and process for recovery and processing thereof

Akira Ushimaru; Hiroshi Hashimoto; Kazuko Hanai; Keiichi Suzuki

Archive | 1991

Magnetic recording medium having multiple magnetic layers with specified compositions

Hiroshi Hashimoto; Hideomi Watanabe; Akira Ushimaru; Kazuko Hanai; Akihiro Matsufuji

Archive | 1990

Magnetic recording medium comprising a vinyl chloride based resin group containing an epoxy group or a polar or both and further a polyurethane resin containing three hydroxyl groups and one polar group

Hiroshi Hashimoto; Akira Ushimaru; Yuuichirou Murayama

Archive | 1992

Magnetic recording medium comprising plural magnetic layers

Hiroshi Hashimoto; Akira Ushimaru

Archive | 1991

Magnetisches Aufzeichnungsmedium und Verfahren zu seiner Rückgewinnung und seiner Verarbeitung

Akira Ushimaru; Hiroshi Hashimoto; Kazuko Hanai; Keiichi Suzuki

Archive | 1991

Magnetisches Aufzeichnungsmedium und Verfahren zu seiner Rückgewinnung und seiner Verarbeitung A magnetic recording medium and methods for its recovery and its processing

Akira Ushimaru; Hiroshi Hashimoto; Kazuko Hanai; Keiichi Suzuki

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