Hachioji, Japan

Tuyoshi Kato

This inventor holds 1 USPTO granted patent. Top assignee: Hitachi, Ltd.. Active years: 1988.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Tuyoshi Kato. Retrieved from https://idiyas.com/inventor/tuyoshi-kato-t5gbmwz7

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

Calculating rank

% Patents Active = 100.0

Average Co-Inventor Count = 9.0

ph-index = 1

Forward Citations = 28(Granted Patents)


Company Filing History:


Years Active: 1988

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1 patent (USPTO):Explore Patents

Title: The Innovations of Tuyoshi Kato: A Focus Error Detection Pioneer

Introduction

Tuyoshi Kato, an esteemed inventor based in Hachioji, Japan, has made significant contributions to the field of optical technologies. With a strong focus on improving optical disk systems, Kato holds at least one important patent that showcases his expertise and innovative spirit.

Latest Patents

Kato's notable patent is a "Focus error detection apparatus utilizing focusing on front and rear." This invention involves a sophisticated system designed to enhance the accuracy of focus error detection in optical devices. The apparatus includes a focusing lens that concentrates reflected light from a specified surface, ensuring precise adjustments at the focal point of a projected light beam. The technology features a beam splitter that divides the output light into two focused beams, utilizing two photo-detectors to generate outputs proportional to the light detected. This allows for the generation of a focus error signal based on the differences between the outputs, thereby advancing the efficiency of optical disk apparatuses.

Career Highlights

Tuyoshi Kato has dedicated his career to pioneering advancements in optical technology. As part of Hitachi, Ltd., he has played a crucial role in developing systems that enhance the performance of optical devices. His patent reflects his innovative approach to solving complex challenges in focus detection, significantly impacting the industry.

Collaborations

In his work, Kato has collaborated with renowned colleagues such as Shigeru Nakamura and Toshimasa Kamisada. Their combined expertise has fostered a creative and productive environment, enabling the development of state-of-the-art technologies in the optical field.

Conclusion

Tuyoshi Kato's contributions to optical technology, particularly through his focus error detection apparatus, underscore the importance of innovation in improving device performance. His collaboration with esteemed colleagues at Hitachi, Ltd. highlights the power of teamwork in driving advancements in technology. As the industry evolves, Kato's work remains a testament to the ongoing quest for precision and efficiency in optical systems.

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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