Location History:
- Les Ulis, FR (1983)
- Hargeville, FR (1986)
Company Filing History:
Years Active: 1983-1986
Title: The Innovations of Jean Lequien
Introduction
Jean Lequien is a notable inventor based in Les Ulis, France. He has made significant contributions to the field of data recording technology, holding a total of three patents. His work focuses on methods and apparatuses that enhance the efficiency and accuracy of data writing on recording media.
Latest Patents
One of Jean Lequien's latest patents is a method of and apparatus for writing data on a recording medium. This invention allows data to be written as transitions on multiple tracks of a magnetic disc by a transducer that travels along an arcuate curve formed by an arm turning about an axis beyond the disc periphery. Transition positions are defined by their phase relative to a reference indicator on a track of the disc. To align the transitions along a predetermined arcuate curve, a reference transition with a reference phase is written onto a given track, while other transitions are written with a phase shift relative to this reference phase.
Another significant patent involves an apparatus and method for determining the transverse position of a magnetic head relative to reference positions defining even and odd numbered axes between concentric adjacent tracks of a magnetic disc. This invention detects the transverse position by responding to magnetic variations in longitudinally extending cells on each track. The resulting waveforms derived from these cells indicate the transverse position of the transducer relative to the axis, allowing for precise data writing.
Career Highlights
Jean Lequien has built a successful career at Cii Honeywell Bull, where he has been instrumental in developing innovative technologies in data recording. His expertise in this field has led to advancements that improve the performance of magnetic discs and data writing processes.
Collaborations
Throughout his career, Jean has collaborated with talented individuals such as Christian Maury and Denis Pinson. These partnerships have fostered a creative environment that has contributed to the development of groundbreaking technologies.
Conclusion
Jean Lequien's contributions to the field of data recording technology are noteworthy. His innovative patents and collaborative efforts have significantly advanced the efficiency and accuracy of data writing methods. His work continues to influence the industry and inspire future innovations.
Inventor’s Patent Attorneys refers to legal professionals with specialized expertise in representing inventors throughout the patent process. These attorneys assist inventors in navigating the complexities of patent law, including filing patent applications, conducting patent searches, and protecting intellectual property rights. They play a crucial role in helping inventors secure patents for their innovative creations.