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For the Inventor, By the Inventor

Tokorozawa, Japan

Masakazu Ejiri

This inventor holds 20 USPTO granted patents, primarily in Pattern Recognition. Top assignee: Hitachi, Ltd.. Active years: 1976-2002.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Masakazu Ejiri. Retrieved from https://idiyas.com/inventor/masakazu-ejiri

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

Calculating rank
USPTO Granted Patents = 20

% Patents Active = 100.0

Average Co-Inventor Count = 4.4

ph-index = 13

Forward Citations = 635(Granted Patents)


Location History:

  • Tokorozawa, JA (1976 - 1978)
  • San Jose, CA (US) (1980 - 1981)
  • Tokorozawa, JP (1978 - 2002)

Company Filing History:

goldMedal20 out of 42,760 
 
Hitachi, Ltd.
 patents

Years Active: 1976-2002

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Areas of Expertise:
Digital Wide Camera
Vehicle Driving Support
Three-Dimensional Input
Image Understanding
Pattern Matching
Object Detection
Compressed Image
Neural-Networks
Shape Recognition
Visual Information Processing
Feature Extraction
Recycling Systems
20 patents (USPTO):Explore Patents
1. 6466262 - Digital wide camera (2002-10-15),
2. 5969969 - Vehicle driving support system which is responsive to environmental (1999-10-19),
3. 5801704 - Three-dimensional input device with displayed legend and shape-changing (1998-09-01),
4. 5436843 - Systems and methods for recycling resources and circulating products (1995-07-25),
5. 4992955 - Apparatus for representing continuous tone and high contrast images on a (1991-02-12),
6. 4972473 - Data communication method and apparatus using neural-networks (1990-11-20),
7. 4907285 - Image understanding system (1990-03-06),
8. 4783831 - Method for producing a standard pattern for pattern matching (1988-11-08),
9. 4291334 - System for detecting the position of an object (1981-09-22),
10. 4288816 - Compressed image producing system (1981-09-08),
11. 4286146 - Coded label and code reader for the coded label (1981-08-25),
12. 4215343 - Digital pattern display system (1980-07-29),
13. 4136957 - Recognition device for recognizing the shape and the position of an (1979-01-30),
14. 4115761 - Method and device for recognizing a specific pattern (1978-09-19),
15. 4109211 - Variable thresholding circuit for converting an analog signal to a (1978-08-22),

Title: **Masakazu Ejiri: A Visionary Inventor From Tokorozawa**

Introduction

Masakazu Ejiri, located in Tokorozawa, Japan, is a prolific inventor with a remarkable portfolio of 20 patents. His innovative contributions to technology demonstrate his commitment to enhancing our daily experiences through sophisticated systems, particularly in the fields of imaging and vehicular support.

Latest Patents

Among Ejiri's latest innovations is the **Digital Wide Camera**, a remarkable advancement capable of creating wide view still images in real time. This camera achieves this by capturing dynamic sequences of images during a recording operation. By panning the camera to obtain a wider perspective, it processes each frame at an impressive rate of 30 frames per second. The resulting wide view image offers an extended field of angular view surpassing that of individual frames. Using global pattern matching and advanced processing, Ejiri’s camera updates the displayed wide view image instantly, making it extremely user-friendly.

In addition, he developed a **Vehicle Driving Support System**, which enhances safety and convenience for drivers. This system detects objects in the vehicle's surroundings and produces output environment information. It includes a command unit that adjusts the vehicle's running mode and generates driving operation reference information based on the detected environment. The system dynamically monitors conditions, such as the distance to vehicles ahead and provides relevant alerts to the driver by considering various driving contexts like congestion, narrow passage, and parking scenarios.

Career Highlights

Ejiri has worked at esteemed companies, including Hitachi, Ltd. and Hitzchi, Ltd., where he honed his skills and contributed to various groundbreaking projects. His career is marked by a dedication to innovation and a passion for improving technology through his inventions.

Collaborations

Throughout his career, Ejiri has collaborated with talented professionals such as Seiji Kashioka and Takafumi Miyatake. These partnerships have played a significant role in developing and refining his inventions, showcasing the value of teamwork in the innovation process.

Conclusion

Masakazu Ejiri stands out as a notable inventor whose work continues to impact the realms of digital imaging and driving technology. With his impressive array of patents and a strong career foundation, he exemplifies the spirit of innovation that drives technological advancement forward.

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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