Chiba, Japan

Hiroshi Sakama

This inventor holds 3 USPTO granted patents. Top assignees: Seiko Instruments Inc, Seiko Instruments R & D Center Inc.. Active years: 1999-2001.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Hiroshi Sakama. Retrieved from https://idiyas.com/inventor/hiroshi-sakama-eg2fzt5c

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 = 10.0

ph-index = 3

Forward Citations = 89(Granted Patents)


Company Filing History:


Years Active: 1999-2001

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3 patents (USPTO):Explore Patents

Title: Hiroshi Sakama: Innovator in Reflective Type LCD Technology

Introduction

Hiroshi Sakama is a notable inventor based in Chiba, Japan. He has made significant contributions to the field of liquid crystal display technology, holding a total of 3 patents. His work focuses on innovative designs that enhance the functionality and efficiency of reflective type LCDs.

Latest Patents

Sakama's latest patents include a reflective type LCD that integrates a solar cell formed from the same material and surface as the active element. This design features a first transparent substrate, a second transparent substrate, and a light scattering liquid crystal layer positioned between them. The solar cell is located on the second transparent substrate, with a portion of it serving as the active element for driving the light scattering liquid crystal layer. Another significant patent is for a reflection type liquid crystal display device that includes a light modulation layer, color separation layers, and a reflection layer. This device is designed to selectively reflect light within a specific wavelength range in the visible light spectrum.

Career Highlights

Throughout his career, Hiroshi Sakama has worked with prominent companies such as Seiko Instruments Inc. and Seiko Instruments R&D Center Inc. His experience in these organizations has allowed him to develop and refine his innovative ideas in the field of display technology.

Collaborations

Sakama has collaborated with notable colleagues, including Masafumi Hoshino and Shuhei Yamamoto. Their combined expertise has contributed to advancements in the technology they have worked on together.

Conclusion

Hiroshi Sakama's contributions to reflective type LCD technology demonstrate his innovative spirit and commitment to advancing display technology. His patents reflect a deep understanding of the interplay between materials and functionality, paving the way for future developments in the field.

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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