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For the Inventor, By the Inventor

Yokohama, Japan

Hiroaki Shioyama

This inventor holds 6 USPTO granted patents. Top assignee: Hitachi, Ltd.. Active years: 1999-2003.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Hiroaki Shioyama. Retrieved from https://idiyas.com/inventor/hiroaki-shioyama

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

USPTO Granted Patents = 6

% Patents Active = 100.0

Average Co-Inventor Count = 6.0

ph-index = 3

Forward Citations = 37(Granted Patents)


Company Filing History:

goldMedal6 out of 42,731 
 
Hitachi, Ltd.
 patents

Years Active: 1999-2003

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6 patents (USPTO):Explore Patents
1. 6643231 - Optical disc apparatus and method (2003-11-04),
2. 6552970 - Optical disk apparatus (2003-04-22),
3. 6452889 - Optical disc apparatus accessing method and system therefor (2002-09-17),
4. 6317403 - Optical disc apparatus accessing method and system therefor (2001-11-13),
5. 6108291 - Optical disc apparatus accessing method and system therefor (2000-08-22),
6. 6002655 - Optical disc apparatus accessing method and system therefor (1999-12-14),

Title: **Hiroaki Shioyama: Innovator in Optical Disc Technology**

Introduction

Hiroaki Shioyama is an esteemed inventor based in Yokohama, Japan. He has made significant contributions to the field of optical disc technology, holding a total of six patents that showcase his innovative spirit and technical expertise.

Latest Patents

Hiroaki Shioyama's latest patents include an "Optical Disc Apparatus and Method" and an "Optical Disk Apparatus." The first patent outlines a method and apparatus for reproducing data from an optical disc that features multiple recording layers, allowing access from one side of the disc. This invention introduces a unique pausing operation where the focal point of the optical pickup is adjusted based on the layer information of the currently reproduced recording layer. The second patent describes an optical disc apparatus designed for recording and reproducing information on a disc with at least two recording layers. This apparatus consists of an optical pickup with a laser source and objective lens, and a sophisticated controller that navigates through layer information to ensure accurate data handling.

Career Highlights

As an inventor at Hitachi, Ltd., Hiroaki Shioyama has established himself as a key player in the development of advanced optical technologies. His work has not only advanced the functionality of optical discs but has also contributed to the overall improvement of data storage and retrieval methods.

Collaborations

Throughout his career, Hiroaki has collaborated with fellow inventors such as Kazuhiko Ono and Eiji Ikeda. These partnerships have likely facilitated the sharing of ideas and technical know-how, leading to greater innovations in their projects.

Conclusion

Hiroaki Shioyama's dedication to innovation in optical disc technology is evident through his patents and collaborative efforts. His work has paved the way for enhanced data storage solutions, and his contributions continue to impact the field positively. As technology evolves, Shioyama remains a pivotal figure in the landscape of optical engineering.

Profile summary based on public USPTO records.
Data Sources: USPTO Patent Grant XML, Patent Center, EPO & CIPO • Normalized by IDiyas Innovation Graph. Methodology & provenance architecturePlease report any incorrect information to [email protected]
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