著者

Sheng-bin HU Jiang-ling ZHANG Xiang-jun FENG Ya-xi GONG

出版者

(社)日本応用磁気学会

雑誌

日本応用磁気学会誌 (ISSN:02850192)

巻号頁・発行日

vol.15, no.S_2_PMRC_91, pp.S2_857-861, 1991 (Released:2011-12-15)

参考文献数

3

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Based on the 4MB 3.5" Perpendicular Recording/Longitudinal Recording Floppy Disk Drive with a track density of 270 TPI, we further developed a 3.5" Perpendicular Recording Floppy Disk Drive demonstrating the potential to realize a capacity of more than 8MB capacity. The key technology included: (1) a Perpendicular Recording/Longitudinal Recording Floppy Head which was without erase element and helped realize the capacity of 4MB-8MB under the condition of without using servo system for tracking. (2) The GAL Technology to expand the Application-Specific Integrated Circuits. (3) The improvements of the read write channel.

著者

近角 聰信

出版者

(社)日本応用磁気学会

雑誌

日本応用磁気学会誌 (ISSN:02850192)

巻号頁・発行日

vol.4, no.2, pp.44-47, 1980-05-31 (Released:2010-05-18)

参考文献数

23

被引用文献数

1

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After describing a history of Invar alloys, analyses of anomalous temperature dependence of Fe-Ni Invar alloys are introduced. The anomalous magnetic and elastic properties of the same alloys are wellcorrelated with that of thermal expansion. Effect of high magnetic field and that of cold-rolling are also described.