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For the Inventor, By the Inventor

Yokohama, Japan

Kazuhiro Hirayama

This inventor holds 24 USPTO granted patents, primarily in Image Recording Technology. Top assignee: Canon Kabushiki Kaisha. Active years: 1977-1985.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Kazuhiro Hirayama. Retrieved from https://idiyas.com/inventor/kazuhiro-hirayama

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

USPTO Granted Patents = 24

% Patents Active = 100.0

Average Co-Inventor Count = 3.4

ph-index = 12

Forward Citations = 361(Granted Patents)


Location History:

  • Yokohama, JA (1977)
  • Hachioji, JA (1977)
  • Yokohama, JP (1978 - 1985)

Company Filing History:

goldMedal24 out of 92,994 
 
Canon Kabushiki Kaisha
 patents

Years Active: 1977-1985

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Areas of Expertise:
Image Recording
Electrostatic Latent Image
High-Speed Recording
Developer Supply
Light Scanning
Information Processing
Optic Axis Adjusting
Cleaning Device
Overlay Recording
Recording Position Adjuster
Cathode Ray Tube
Ghost Image Elimination
24 patents (USPTO):Explore Patents
1. 4528580 - Image information recording apparatus (1985-07-09),
2. 4468112 - Developer concentration controlling device (1984-08-28),
3. 4450453 - Overlay recording device for recording a plurality of information in (1984-05-22),
4. 4448513 - Image information recording apparatus (1984-05-15),
5. 4377333 - Recording apparatus (1983-03-22),
6. 4370053 - Developer supply device (1983-01-25),
7. 4358520 - Method of stabilizing an electrostatic latent image (1982-11-09),
8. 4314756 - Cleaning device (1982-02-09),
9. 4312588 - High-speed recording apparatus (1982-01-26),
10. 4297716 - Recording apparatus including a continuous transfer web (1981-10-27),
11. 4257701 - Image information recording apparatus (1981-03-24),
12. 4233612 - Image information electrostatic recording device (1980-11-11),
13. 4232954 - Recording position adjuster (1980-11-11),
14. 4222643 - Recording position adjuster (1980-09-16),
15. 4175851 - Recording position adjuster (1979-11-27),

Title: Innovations by Kazuhiro Hirayama: Pioneering Patents in Imaging Technology

Introduction: Kazuhiro Hirayama is a prominent inventor based in Yokohama, Japan, known for his significant contributions to imaging technology. With a remarkable portfolio of 24 patents, he has been instrumental in advancing the functionality and efficiency of imaging devices.

Latest Patents: Among his latest inventions are two noteworthy patents: the **Image Information Recording Apparatus** and the **Developer Concentration Controlling Device**. The Image Information Recording Apparatus utilizes a semiconductor laser and incorporates an optical filter designed to reduce discrepancies in laser intensity, ensuring uniform image density. The Developer Concentration Controlling Device enhances the performance of electrophotographic copiers by employing dual detectors to regulate developer concentration and maintain optimal image density.

Career Highlights: Kazuhiro Hirayama has dedicated his career to Canon Kabushiki Kaisha, a leading company in imaging and printing solutions. His innovative spirit and technical expertise have earned him recognition within the industry, reflecting his commitment to advancing imaging technologies.

Collaborations: Throughout his career, Hirayama has collaborated with talented colleagues, including Yasushi Sato and Katsumi Masaki. These partnerships have fostered a creative environment, resulting in various pioneering innovations that have shaped the future of imaging technologies.

Conclusion: Kazuhiro Hirayama's contributions to the field of imaging technology, reflected in his impressive patent portfolio, underscore his role as a leading inventor. His latest innovations continue to influence the development of advanced imaging solutions, showcasing the impact of collaboration and dedication in the world of 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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