Company Filing History:
Years Active: 1996-2012
Title: Innovations of Katsuhiko Ohtomo
Introduction
Katsuhiko Ohtomo is a prominent inventor based in Miyagi, Japan. He has made significant contributions to the field of optical recording media, holding a total of 11 patents. His work has been instrumental in advancing the technology used in data storage and retrieval.
Latest Patents
Ohtomo's latest patents include a record medium and its manufacturing method, as well as a mother disc for record medium and its manufacturing method. His innovations enable stable reproduction of binary information previously recorded in the innermost rim side area. The record medium is formed by sequentially laminating a first information layer, an intermediate layer, a second information layer, and a cover layer onto a substrate. First grooves are previously formed in the innermost rim area of the substrate, while second grooves are formed in the area where data is recorded. The first grooves are designed to be shallower and narrower than the second grooves, reducing the modulation of a BCA signal by diffraction due to the grooves.
Additionally, he has developed an optical recording medium with grooves, an optical recording medium master with grooves, and an apparatus for manufacturing optical recording medium masters with grooves. His work ensures stable reproduction of wobble signals without generating beats, despite improvements in recording density achieved by narrowing track pitches. Data is recorded using magneto-optical recording on wobbling grooves and lands between adjacent wobbling grooves, with the grooves designed to wobble both sides in different amplitudes.
Career Highlights
Katsuhiko Ohtomo has had a distinguished career at Sony Corporation, where he has been able to apply his innovative ideas to real-world applications. His contributions have not only advanced the technology but have also set new standards in the industry.
Collaborations
Throughout his career, Ohtomo has collaborated with notable colleagues such as Sohmei Endoh and Hiroshi Nomura. These partnerships have further enriched his work and led to groundbreaking advancements in optical recording technologies.
Conclusion
Katsuhiko Ohtomo's contributions to the field of optical recording media are significant and impactful. His innovative patents and collaborations have paved the way for advancements in data storage technology.
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.