Tokorozawa, Japan

Hirokatsu Nagatake

This inventor holds 5 USPTO granted patents. Top assignee: Pioneer Corporation. Active years: 2002-2006.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Hirokatsu Nagatake. Retrieved from https://idiyas.com/inventor/hirokatsu-nagatake

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

Calculating rank

% Patents Active = 40.0

Average Co-Inventor Count = 6.7

ph-index = 3

Forward Citations = 24(Granted Patents)


Location History:

  • Tokorozawa, JP (2002 - 2005)
  • Saitama-ken, JP (2006)

Company Filing History:


Years Active: 2002-2006

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5 patents (USPTO):Explore Patents

Title: The Innovative Contributions of Hirokatsu Nagatake

Introduction

Hirokatsu Nagatake, an accomplished inventor based in Tokorozawa, Japan, holds a remarkable portfolio of five patents. His work in optical technologies, particularly in optical pickups and laser diode chips, reflects a significant advancement in the field of information recording media.

Latest Patents

Nagatake's latest patents include an innovative optical pickup designed to effectively detect light reflected from an information recording medium, even when the wavelength of the emitted laser light varies. The technical foundation of this invention involves complex transmittance relationships among various wavelengths and polarization states. Additionally, he developed an optical pickup apparatus that incorporates a laser diode chip, allowing the simplification and miniaturization of the device. This advancement accommodates a plurality of laser beams with different wavelengths, enhancing the functionality and efficiency of optical pickups.

Career Highlights

Currently, Nagatake is employed at Pioneer Corporation, where he has made substantial contributions to optical technology. His dedication to innovation has garnered respect within the industry and positioned him as a thought leader in the engineering community.

Collaborations

Throughout his career, Nagatake has collaborated with notable colleagues, including Akira Miura and Makoto Kawamura. Together, they have worked on various projects that blend their expertise, driving forward the development of cutting-edge optical technologies.

Conclusion

Hirokatsu Nagatake's contributions to the field of optical technology continue to influence advancements in how data is recorded and retrieved. His inventive spirit and teamwork with other talented professionals ensure that his work remains at the forefront of innovation in the industry.

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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