Saitama, Japan

Masatoshi Marui

This inventor holds 6 USPTO granted patents. Top assignee: Asahi Kogaku Kogyo Kabushiki Kaisha. Active years: 1980-1992.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Masatoshi Marui. Retrieved from https://idiyas.com/inventor/masatoshi-marui

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


% Patents Active = 100.0

Average Co-Inventor Count = 3.4

ph-index = 6

Forward Citations = 48(Granted Patents)


Location History:

  • Fukuoka, JP (1980)
  • Kami Fukuoka, JP (1980 - 1981)
  • Saitama, JP (1991 - 1992)

Company Filing History:


Years Active: 1980-1992

Loading Chart...
6 patents (USPTO):Explore Patents

Title: Masatoshi Marui: Innovator in Exposure Apparatus Technology

Introduction

Masatoshi Marui is a prominent inventor based in Saitama, Japan. He has made significant contributions to the field of exposure apparatus technology, particularly in the fabrication of printed circuit boards. With a total of 6 patents to his name, Marui's work has had a notable impact on the industry.

Latest Patents

Marui's latest patents include an innovative exposure apparatus featuring a magnifying lens system. This apparatus utilizes a thermally-written liquid-crystal light valve, where patterns are formed by opaque and transparent portions. A writing optical system directs a heating spot light onto the light valve, which can be moved relative to the heating spot light. Additionally, a projecting optical system transmits luminous flux emitted from a light source through the liquid-crystal layer, illuminating the subject with the transmitted light.

Career Highlights

Masatoshi Marui is currently employed at Asahi Kogaku Kogyo Kabushiki Kaisha, where he continues to develop cutting-edge technologies in his field. His work has been instrumental in advancing the capabilities of exposure apparatuses used in electronic manufacturing.

Collaborations

Throughout his career, Marui has collaborated with notable colleagues, including Koji Tuda and Hironobu Nagashima. These partnerships have fostered innovation and contributed to the success of their projects.

Conclusion

Masatoshi Marui's contributions to exposure apparatus technology exemplify his dedication to innovation in the field. His patents and collaborations reflect a commitment to advancing electronic manufacturing processes.

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]
Loading…