Tokyo, Japan

Masaharu Umezu

This inventor holds 27 USPTO granted patents and 4 published patent applications, primarily in Map Information Processing. Top assignees: Mitsubishi Denki Kabushiki Kaisha, Mitsubishi Electric Corporation. Active years: 1994-2016.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Masaharu Umezu. Retrieved from https://idiyas.com/inventor/masaharu-umezu

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

USPTO Granted Patents = 27 

% Patents Active = 59.3

Average Co-Inventor Count = 4.4

ph-index = 12

Forward Citations = 332(Granted Patents)


Location History:

  • Amagasaki, JP (1994)
  • Hyogo, JP (1996)
  • Tokyo, JP (1999 - 2016)

Company Filing History:


Years Active: 1994-2016

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Areas of Expertise:
Map Information Processing
Navigation Apparatus
Data Architecture
Map Data Processing
Onboard Information Terminal
Map Data Storage
Traffic Information Display
Path Search Method
Data Structure
Update Instruction Data
On-Vehicle Information Processor
Map Data Management
27 patents (USPTO):Explore Patents

Title: **Masaharu Umezu: A Pioneer in Map Information Processing Technology**

Introduction

Masaharu Umezu is an accomplished inventor based in Tokyo, Japan, known for his significant contributions to the field of map information processing. With a remarkable portfolio of 27 patents, Umezu has demonstrated his expertise and innovation throughout his career, particularly in creating systems that improve the accuracy and efficiency of map navigation.

Latest Patents

Among his most notable patents is the "Map Information Processing Apparatus," which features a sophisticated design including a map information storage unit that organizes data into multiple layers. This apparatus intelligently determines which layers require updates by detecting unregistered roads while a vehicle is in transit. Additionally, his innovation allows for the seamless addition and updating of these roads to the stored map information, thereby enhancing the quality of navigation services.

Another key patent closely related to his work in map processing involves a similar apparatus that monitors an area-based grid. This invention uses positioning technology to identify and register new roads, provided the road density in its vicinity meets specific criteria. Umezu's inventions are a testament to his ability to merge technology with practical road navigation solutions.

Career Highlights

Masaharu Umezu has had a distinguished career working with prominent companies, including Mitsubishi Denki Kabushiki Kaisha and Mitsubishi Electric Corporation. His tenure in these organizations has allowed him to collaborate with other innovative minds and further his research and development in advanced map processing technologies.

Collaborations

Throughout his career, Umezu has partnered with notable professionals, including Tomoya Ikeuchi and Makoto Mikuriya. These collaborations have not only expanded his professional network but also contributed to the enhancement of his innovations in the realm of mapping technology.

Conclusion

Masaharu Umezu's inventive spirit and commitment to advancing map information processing technology make him a notable figure in the field. His collection of patents reflects his ability to innovate and improve how we navigate our environments, paving the way for future developments in this essential technology.

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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