Company Filing History:
2 out of 164,275 
1 out of 2,636 
Years Active: 2003-2007
Title: The Innovations of Rick Allan Sprague
Introduction
Rick Allan Sprague is a notable inventor based in San Jose, CA. He holds a total of 3 patents that contribute significantly to the field of data storage technology. His work primarily focuses on enhancing the performance and durability of data recording disks.
Latest Patents
One of his latest patents is a chemical strengthening process for disks used in disk drive data storage devices. This process involves a salt mixture that is subjected to sub-micron filtration to remove impurities. The glass disks are chemically strengthened through ion exchange in a bath of molten sodium nitrate and potassium nitrate. The preparation of this salt mixture includes melting high-grade bulk salt and filtering it through a stainless steel filter, ensuring the removal of trace contaminants.
Another significant patent involves the pH adjustment of a melt for use in microetching glass substrates. This method adjusts the pH of a strengthening melt by adding a base, which raises its pH. The process allows for a desired degree of microetch on aluminosilicate glass disk substrates, enhancing their performance. The careful control of pH ensures that the etching does not damage the substrate surface.
Career Highlights
Rick has had a distinguished career, working with prominent companies such as IBM and Hitachi Global Storage Technologies Netherlands B.V. His contributions to these organizations have been instrumental in advancing data storage technologies.
Collaborations
Throughout his career, Rick has collaborated with notable individuals, including Terry Lee Jensen and John William Marier. These collaborations have further enriched his work and innovations in the field.
Conclusion
Rick Allan Sprague's contributions to data storage technology through his innovative patents and collaborations highlight his significant impact in the industry. His work continues to influence advancements in the field, ensuring improved performance and durability of data storage devices.