Oxford, United Kingdom

Hidehiko Yamashita

This inventor holds 5 USPTO granted patents. Top assignee: Sharp Kabushiki Kaisha Corporation. Active years: 2003-2020.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Hidehiko Yamashita. Retrieved from https://idiyas.com/inventor/hidehiko-yamashita

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


% Patents Active = 40.0

Average Co-Inventor Count = 1.9

ph-index = 4

Forward Citations = 42(Granted Patents)


Location History:

  • Yamatokoriyama, JP (2003)
  • Oxfordshire, GB (2007)
  • Oxford, GB (2008 - 2011)
  • Sakai, JP (2020)

Company Filing History:


Years Active: 2003-2020

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5 patents (USPTO):Explore Patents

Title: Innovations of Hidehiko Yamashita

Introduction

Hidehiko Yamashita is a notable inventor based in Oxford, GB. He has made significant contributions to the field of technology, particularly in lighting and display devices. With a total of 5 patents to his name, his work continues to influence advancements in these areas.

Latest Patents

Yamashita's latest patents include a lighting device and a display device. The lighting device features a light source, a light guide plate, an optical sheet, and a light blocking member. The light guide plate is designed with a light entering surface and an opposite surface, allowing for efficient light management. The optical sheet is positioned over the light exiting plate surface, while the light blocking member is strategically placed to prevent light leakage.

His display device patent involves a signal processing circuit and a low-voltage signal generator. This invention includes a first logic operation circuit that utilizes a high-amplitude logic signal. The low-voltage signal generator acts as a step-down level shifter, transforming the high-amplitude signal into a low-amplitude signal for transmission. This configuration enhances operational speed and reduces power consumption.

Career Highlights

Yamashita has had a distinguished career, working with Sharp Kabushiki Kaisha Corporation. His innovative designs and patents have positioned him as a key figure in the development of advanced lighting and display technologies.

Collaborations

Some of his notable coworkers include Michael James Brownlow and Graham Andrew Cairns. Their collaborative efforts have contributed to the success of various projects within the company.

Conclusion

Hidehiko Yamashita's contributions to technology through his patents and collaborations highlight his role as an influential inventor. His work continues to pave the way for future innovations in lighting and display devices.

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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