Yutaka Hirai

This inventor holds 79 USPTO granted patents, primarily in Electrophotography (CPC class 430 ). Top assignee: Canon Kabushiki Kaisha. Active years: 1981-2000.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Yutaka Hirai. Retrieved from https://idiyas.com/inventor/yutaka-hirai

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

USPTO Granted Patents = 79

% Patents Active = 100.0

Average Co-Inventor Count = 4.4

ph-index = 23

Forward Citations = 1,626(Granted Patents)

Forward Citations (Not Self Cited) = 1,592(Dec 10, 2025)

Inventors with similar research interests:

Location History:

Hikone, JP (1989 - 1998)
Tokyo, JP (1981 - 2000)

Company Filing History:

79 out of 92,994

Canon Kabushiki Kaisha

patents

Years Active: 1981-2000

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Areas of Expertise:

Electrophotography

Thin Film Transistor

Semiconductor Device

CVD Process

Image Forming Member

Cleaning Blade

Hydrogenated a-Si

Probe-Driving Mechanism

Light Emitting Device

Angular Acceleration Sensor

Optical Recording Device

Micro-Displacement Element

79 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 6077718 - Method for forming deposited film (2000-06-20),

2. 5966787 - Process for producing a probe-driving mechanism (1999-10-19),

3. 5846320 - Method for forming crystal and crystal article obtained by said method (1998-12-08),

4. 5769950 - Device for forming deposited film (1998-06-23),

5. 5756250 - Electrophotographic method using a cleaning blade to remove residual (1998-05-26),

6. 5753936 - Image forming member for electrophotography (1998-05-19),

7. 5658703 - Electrophotographic photosensitive member and process for production (1997-08-19),

8. 5640663 - Electrophotographic method using a cleaning blade to remove residual (1997-06-17),

9. 5593497 - Method for forming a deposited film (1997-01-14),

10. 5591492 - Process for forming and etching a film to effect specific crystal growth (1997-01-07),

11. 5585149 - CVD method for forming a photoconductive hydrogenated a-Si layer (1996-12-17),

12. 5576060 - CVD process of forming hydrogenated a-Si films (1996-11-19),

13. 5573884 - Image-forming member for electrophotography (1996-11-12),

14. 5554851 - Parallel plane holding mechanism and apparatus using such a mechanism (1996-09-10),

15. 5506829 - Cantilever probe and apparatus using the same (1996-04-09),

Title: Innovations and Contributions of Yutaka Hirai

Introduction

Yutaka Hirai, an influential inventor based in Tokyo, Japan, holds an impressive portfolio of 79 patents. His work primarily focuses on advancements in technology that enhance various manufacturing processes.

Latest Patents

Among his latest patents are two notable inventions. The first is a "Method for forming deposited film," which presents a device designed to improve film deposition on substrates. This invention features a reaction chamber equipped with heating means, gas introducing means that can alternate between different gases, and a decomposing means with a light source to facilitate the decomposition of gases for film formation. The second patent, titled "Process for producing a probe-driving mechanism," outlines a method for creating a mechanism using laminated insulating layers and piezoelectric components. This process simplifies the formation of cantilevers necessary for probe applications.

Career Highlights

Yutaka Hirai has contributed significantly to Canon Kabushiki Kaisha, a leading technology company renowned for its innovative products and solutions. His dedication to research and development has positioned him as a key player in the advancements of technologies within the company.

Collaborations

Throughout his career, Hirai has collaborated with esteemed colleagues such as Toshiyuki Komatsu and Katsumi Nakagawa. Together, they have worked on various projects that harness their collective expertise, leading to the successful development of innovative technologies in their respective fields.

Conclusion

Yutaka Hirai continues to showcase his prowess as an inventor in the world of technology. His contributions not only reflect his innovative spirit but also the importance of collaboration in driving advancements. As he progresses in his career, the impact of his patents and inventions will undoubtedly influence future technological developments.

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]