Tokyo, Japan

Mika Fujii

This inventor holds 20 USPTO granted patents, primarily in Portable Communication Devices. Top assignees: Nec Corporation, Nec C Orporation. Active years: 1998-2013.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Mika Fujii. Retrieved from https://idiyas.com/inventor/mika-fujii

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


% Patents Active = 55.0

Average Co-Inventor Count = 3.3

ph-index = 10

Forward Citations = 444(Granted Patents)


Company Filing History:


Years Active: 1998-2013

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Areas of Expertise:
Foldable Terminal
Portable Equipment
Wireless Telephone
Communication Apparatus
GPS Unit
Recording Control
Condition Notifying
Wireless Headphone
Cordless Telephone
Slide-Type Design
20 patents (USPTO):Explore Patents

Title: The Innovations of Mika Fujii: A Visionary in Portable Information Technology

Introduction: Mika Fujii, a prominent inventor based in Tokyo, Japan, has made significant contributions to the field of portable information technology. With an impressive portfolio of 20 patents, he continues to push the boundaries of innovation. His work revolutionizes how users interact with technology, particularly in the realm of foldable devices.

Latest Patents: Among his latest patents, two noteworthy inventions stand out. The first is a "Foldable Portable Information Terminal," which features an upper unit equipped with a display and a lower unit with operation keys. This innovative design includes a movable connecting mechanism that allows the upper unit to be opened, closed, and freely rotated. The display mode changes based on the positional relationship between the upper and lower units, enhancing user experience.

The second patent is for "Portable Information Terminal Equipment," which includes advanced features for dynamic notifications. This equipment performs an informing process during communication and allows one-touch operation for opening and closing the device. By utilizing a motor drive circuit, it can adjust its posture in response to calls or messages, providing users with immediate feedback.

Career Highlights: Mika Fujii works at NEC Corporation, a leading company known for its commitment to innovation and technology solutions. His role at NEC has allowed him to spearhead groundbreaking projects that address the evolving needs of consumers in the digital landscape.

Collaborations: Throughout his career, Mika has collaborated with talented individuals like Michio Nagai and Masatomo Mizuta. Their joint efforts have fostered an environment of creativity and technical excellence, contributing to the high quality of their collaborative inventions.

Conclusion: Mika Fujii stands as a remarkable figure in the realm of portable information technology. With his numerous patents and ongoing commitment to innovation, he is shaping the future of how we interact with devices. His work at NEC Corporation and collaborative spirit with fellow inventors continue to lead to advancements that will likely benefit society for years to come.

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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