Mobara, Japan

Ikuo Marushima

This inventor holds 1 USPTO granted patent. Top assignee: Futaba Denshi Kogyo K.k.. Active years: 1986.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Ikuo Marushima. Retrieved from https://idiyas.com/inventor/ikuo-marushima

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 = 3.0

ph-index = 1

Forward Citations = 2(Granted Patents)


Company Filing History:


Years Active: 1986

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1 patent (USPTO):Explore Patents

Title: Ikuo Marushima: Innovator in Fluorescent Display Technology

Introduction

Ikuo Marushima is a notable inventor based in Mobara, Japan. He has made significant contributions to the field of display technology, particularly through his innovative patent related to fluorescent display devices. His work emphasizes efficiency and high performance in display systems.

Latest Patents

Marushima holds a patent for a "Fluorescent display device with interleaved anode and control electrode." This invention is designed to operate through segment scanning, allowing for high luminance and low power consumption. The display device features segments that consist of anodes and control electrodes arranged in a pectinate pattern on a substrate, with insulating spaces in between. Each anode is equipped with a phosphor layer on the side opposite to the cathode, enhancing the display's functionality.

Career Highlights

Ikuo Marushima is associated with Futaba Denshi Kogyo K.K., a company known for its advancements in electronic components and display technologies. His work at the company has been pivotal in developing innovative solutions that meet modern display requirements.

Collaborations

Throughout his career, Marushima has collaborated with talented individuals such as Takao Kishino and Nobumitsu Kanetsuna. These collaborations have contributed to the advancement of technology in the field of displays.

Conclusion

Ikuo Marushima's contributions to fluorescent display technology highlight his innovative spirit and dedication to improving electronic displays. His patent reflects a significant advancement in the industry, showcasing his expertise and commitment to excellence.

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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