Tokyo, Japan

Masao Katsumata

This inventor holds 6 USPTO granted patents. Top assignee: Sony Corporation. Active years: 1998-2007.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Masao Katsumata. Retrieved from https://idiyas.com/inventor/masao-katsumata

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


% Patents Active = 50.0

Average Co-Inventor Count = 1.8

ph-index = 5

Forward Citations = 93(Granted Patents)


Company Filing History:


Years Active: 1998-2007

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6 patents (USPTO):Explore Patents

Title: Masao Katsumata: Innovator in Liquid Crystal Projection Technology

Introduction

Masao Katsumata is a prominent inventor based in Tokyo, Japan. He has made significant contributions to the field of optical technology, particularly in liquid crystal projectors. With a total of 6 patents to his name, Katsumata's work has advanced the capabilities of projection systems.

Latest Patents

Katsumata's latest patents include innovative designs for illumination optical units in liquid crystal projectors. One of his notable inventions is an illumination optical unit that features an optical system designed to uniformly and convergently irradiate light from a light-source lamp onto a predetermined object. This design incorporates a reflector that converges light and an optical assembly that collimates this light into a bundle of approximately parallel rays. This advancement allows for a compact lighting optical unit while meeting the demand for increased light quantity on the effective area of the liquid-crystal panel's pixels.

Another significant patent involves a prism, projection, and optical component apparatus that efficiently transmits or reflects incident light. This apparatus consists of a pair of diffraction grid substrates and a grid-shaped diffraction grid made of metal, which is strategically placed between the substrates. The design minimizes optical distortion, enhancing the quality of light output.

Career Highlights

Masao Katsumata is currently associated with Sony Corporation, where he continues to innovate in the field of optical technologies. His work has been instrumental in developing advanced projection systems that are widely used in various applications.

Collaborations

Katsumata has collaborated with notable colleagues, including Hideki Yamamoto and Hideo Tomita. These partnerships have fostered a creative environment that has led to groundbreaking advancements in their respective fields.

Conclusion

Masao Katsumata's contributions to liquid crystal projection technology exemplify his innovative spirit and dedication to advancing optical systems. His patents reflect a commitment to enhancing the efficiency and effectiveness of projection technologies.

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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