John C Shyan Shen

Title: John C. Shyan Shen and Magnetic Recording Technology.

Introduction

John C. Shyan Shen is an inventor associated with Rochester, Minnesota, and International Business Machines Corporation. His recorded patent concerns a durable magnetic coating designed for rigid recording disks.

Latest Patents

Shen is credited with 1 patent: “Rigid Magnetic Coating Composition with Thermosetting Binder for Hard [Disks].” The invention describes a magnetic recording disk coating in which magnetic particles are uniformly dispersed in a thermosetting polyurethane binder and applied as a thin layer to a rigid substrate. Its binder uses a blocked isocyanate polymer reacted with hydroxy-terminated or branched oligomers.

The composition was designed for extended shelf life and curing below 375°F. The resulting coating is described as smooth, hard, tough, and durable, with improved particle orientation and suitability for buffing, washing, and lubrication.

Career Highlights

The available information connects Shen’s patent work with International Business Machines Corporation. The invention addresses practical manufacturing and performance considerations for magnetic recording media, including coating durability, dispersion quality, and processing.

Collaborations

Shen’s listed coworker is Bruce Frederick Blumentritt. The available details identify their professional association but do not specify the nature of their collaboration on the patent.

Conclusion

John C. Shyan Shen’s recorded invention reflects work on improving the performance and manufacturability of rigid magnetic recording disk coatings.