Tokyo, Japan

Hiroshi Kaiwa

This inventor holds 1 USPTO granted patent. Top assignee: Hitachi, Ltd.. Active years: 1990.

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

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 = 5.0

ph-index = 1

Forward Citations = 24(Granted Patents)


Company Filing History:


Years Active: 1990

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1 patent (USPTO):Explore Patents

Title: Hiroshi Kaiwa - Innovator in Multi-Screen Projection Technology

Introduction

Hiroshi Kaiwa is a notable inventor based in Tokyo, Japan. He has made significant contributions to the field of projection technology, particularly with his innovative designs that enhance visual experiences.

Latest Patents

Hiroshi holds a patent for a multi-screen projector. This invention consists of multiple unit module projectors stacked vertically. Each unit module includes a Fresnel lens sheet, a lenticular sheet, and a prism sheet. The design allows light to be incident on the Fresnel lens sheet and outputted from the lenticular sheet. Notably, the prism angle of the upper unit module projector is larger than that of the lower one, ensuring that the main output light is either parallel to or deflected downward from the incident light direction.

Career Highlights

Hiroshi is currently employed at Hitachi, Ltd., where he continues to innovate and develop advanced projection technologies. His work has positioned him as a key figure in the industry, contributing to the evolution of visual display systems.

Collaborations

Hiroshi has collaborated with notable colleagues, including Masanori Ogino and Yoshiaki Iwahara. Their combined expertise has fostered a creative environment that encourages groundbreaking advancements in technology.

Conclusion

Hiroshi Kaiwa's contributions to multi-screen projection technology exemplify his innovative spirit and dedication to enhancing visual experiences. His work at Hitachi, Ltd. and his collaborations with esteemed colleagues further highlight his impact 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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