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For the Inventor, By the Inventor

Yokohama, Japan

Hiroaki Tsuji

This inventor holds 5 USPTO granted patents, plus 1 CIPO patent. Top assignee: Matsushita Electric Industrial Co., Ltd.. Active years: 1994-1998.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Hiroaki Tsuji. Retrieved from https://idiyas.com/inventor/hiroaki-tsuji-1b36c27i

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

Calculating rank
USPTO Granted Patents = 5

% Patents Active = 100.0


Average Co-Inventor Count = 1.6

ph-index = 5

Forward Citations = 201(Granted Patents)


Company Filing History:

goldMedal5 out of 27,375 
 
Matsushita Electric Industrial Co., Ltd.
 patents

Years Active: 1994-1998

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5 patents (USPTO):Explore Patents
1. 5774830 - Car navigation system (1998-06-30),
2. 5539647 - Vehicle navigation system using GPS including correction of coefficients (1996-07-23),
3. 5483457 - Vehicle navigation system using GPS including correction of coefficients (1996-01-09),
4. 5367463 - Vehicle position and azimuth computing system (1994-11-22),
5. 5337243 - Vehicle orientation calculating device (1994-08-09),

Title: Hiroaki Tsuji: Innovator in Vehicle Navigation Systems

Introduction

Hiroaki Tsuji is a prominent inventor based in Yokohama, Japan. He has made significant contributions to the field of vehicle navigation systems, holding a total of 5 patents. His innovative work has greatly enhanced the functionality and precision of navigation technologies.

Latest Patents

One of Tsuji's latest patents is a car navigation system that includes a GPS receiver. This system detects the number of GPS radio signals received and adjusts the display's color tone and luminance based on this information. Additionally, it calculates the rate of decrease in GPS signals to further refine the display settings. Another notable patent is a vehicle navigation system that automatically corrects the coefficient of its velocity sensor with high precision. This system measures the distance between two GPS positions and adjusts the velocity sensor coefficient to ensure accuracy in travel distance.

Career Highlights

Hiroaki Tsuji is currently employed at Matsushita Electric Industrial Co., Ltd., where he continues to develop innovative navigation solutions. His work has been instrumental in advancing the technology used in modern vehicles.

Collaborations

Tsuji has collaborated with notable coworkers, including Akihito Shibata and Yoichiro Suga, contributing to the success of various projects within the company.

Conclusion

Hiroaki Tsuji's contributions to vehicle navigation systems exemplify his innovative spirit and dedication to enhancing technology. His patents reflect a commitment to improving user experience and accuracy in navigation.

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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