Company Filing History:

14 out of 621

Imation Corporation

Minnesota Mining and Manufacturing Company

patents

4. 1 out of 832,680

Other

patents

Years Active: 1981-2014

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22 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 8705334 - Replica disk for data storage (2014-04-22),

2. RE44633 - Reverse optical mastering for data storage disk replicas (2013-12-09),

3. 8593931 - Replica disk for data storage (2013-11-26),

4. 8363534 - Reverse optical mastering for data storage disk replicas (2013-01-29),

5. 7952986 - Reverse optical mastering for data storage disk replicas (2011-05-31),

6. 7801016 - Reverse optical mastering for data storage disk replicas (2010-09-21),

7. 7600992 - Reverse optical mastering for data storage disk stamper (2009-10-13),

8. 7352685 - Reverse optical mastering for data storage disk replicas (2008-04-01),

9. 7114947 - Optical disk mold tooling for reduced edge wedge (2006-10-03),

10. 6977052 - Check disk for optical data storage disk manufacturing (2005-12-20),

11. 6961950 - Variable thickness stamper for creation of flat molded substrates (2005-11-01),

12. 6821460 - Two-sided replication of data storage media (2004-11-23),

13. 6752611 - Optical disk mold tooling for reduced edge wedge (2004-06-22),

14. 6638692 - Replicated regions on optical disks (2003-10-28),

15. 6616867 - Multi-generation stampers (2003-09-09),

Title: Innovations and Patents of Donald J Kerfeld in Data Storage Technology

Introduction

Donald J Kerfeld is a prominent inventor based in Saint Paul, MN, known for his significant contributions to data storage technology. With a remarkable portfolio of 21 patents, Kerfeld has played a crucial role in advancing the methods of data storage replication and optical mastering.

Latest Patents

Among his latest innovations are two notable patents focused on data storage processes. The first, titled "Replica Disk for Data Storage," highlights the creation of replica disks that feature a surface relief pattern consisting of replica lands and grooves. This invention aims to enhance data storage efficiency and retrieval. The second patent, "Reverse Optical Mastering for Data Storage Disk Replicas," outlines the comprehensive process for creating data storage master disks, which are essential in the replication of data storage disks. This method elaborates on the use of a master substrate coated with photosensitive material, where a surface relief pattern is developed through precise exposure and developing steps.

Career Highlights

Throughout his career, Kerfeld has worked with notable companies, including Imation Corporation and Legger Col. A.b. LLC, where he contributed his expertise in data storage technologies. His inventive spirit has resulted in patents that have set new benchmarks in the industry.

Collaborations

Kerfeld has collaborated with several esteemed colleagues, including Jathan D Edwards and Chad R Sandstrom. These partnerships have fostered an environment of innovation, leading to groundbreaking advancements in the field of data storage.

Conclusion

Donald J Kerfeld's work has significantly impacted the landscape of data storage technology, underscoring the importance of innovation in this fast-paced field. His extensive patent portfolio and collaborative efforts reflect his dedication to advancing how data is stored and accessed, ensuring that he remains a vital figure in the realm of technological developments.

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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.