Tatsuo Aizawa

This inventor holds 53 USPTO granted patents, primarily in Electrophotography Technology (CPC class 4301). Top assignee: Mita Industrial Co., Ltd.. Active years: 1976-1985.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Tatsuo Aizawa. Retrieved from https://idiyas.com/inventor/tatsuo-aizawa

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

USPTO Granted Patents = 53

% Patents Active = 100.0

Average Co-Inventor Count = 3.4

ph-index = 12

Forward Citations = 503(Granted Patents)

Forward Citations (Not Self Cited) = 496(Dec 10, 2025)

Inventors with similar research interests:

Location History:

Kuwatsu, JA (1976)
Kuwata, JA (1976)
Osaka, JA (1976 - 1978)
Osaka, JP (1978 - 1985)

Company Filing History:

53 out of 1,344

Mita Industrial Co., Ltd.

patents

Years Active: 1976-1985

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Areas of Expertise:

Electrophotography

Toner Transfer

Photosensitive Material

Developer Process

Electrostatic

Copying Apparatus

Thermosensitive Recording

Magnetic Developer

Image Fixing

Latent Images

Printing Technology

Laminated Materials

53 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 4533618 - Method for transferring toner image (1985-08-06),

2. 4430410 - Method and apparatus for developing latent electrostatic images (1984-02-07),

3. 4415645 - Developer for electrophotography and process for preparation thereof (1983-11-15),

4. 4388396 - Electrophotographic process of developing and transfering images uses (1983-06-14),

5. 4380196 - Plate for lithography or offset printing (1983-04-19),

6. 4370379 - Method for preparing original for projection and transfer film for (1983-01-25),

7. 4357406 - Developer for electrophotography and process for preparation thereof (1982-11-02),

8. 4349611 - Thermosensitive recording material (1982-09-14),

9. 4333967 - Process of making a thermosensitive recording material (1982-06-08),

10. 4328265 - Process for preparation of a transfer sheet for electrostatic (1982-05-04),

11. 4320186 - Electrographic method for preparing original for projection and transfer (1982-03-16),

12. 4314018 - Cleaning process for an electrostatic copying apparatus (1982-02-02),

13. 4286861 - Electrostatic copying process and apparatus (1981-09-01),

14. 4267246 - Pressure or heated roller electrophoto image fixing uses halogen or (1981-05-12),

15. 4265992 - Coated magnetic developer particles for electrophotography containing (1981-05-05),

Title: **Tatsuo Aizawa: Innovator in Electrostatic Image Development**

Introduction

Tatsuo Aizawa, based in Osaka, Japan, is a prominent inventor known for his remarkable contributions to the field of electrostatic image development. With an impressive portfolio of 53 patents, Aizawa's innovative techniques have paved the way for advancements in imaging technology.

Latest Patents

Among Aizawa's latest patents is a **Method for Transferring Toner Image**. This method involves transferring a toner image from an image-bearing member to a receptor member through corona discharge, ensuring a precise angle between the electric force lines and the receptor member. Another significant patent is the **Method and Apparatus for Developing Latent Electrostatic Images**, which employs a specially designed developer-retaining member for effective image development without causing background fog or a tail effect. These inventions reflect Aizawa's dedication to refining printing and imaging processes.

Career Highlights

Throughout his career, Tatsuo Aizawa has been associated with Mita Industrial Co., Ltd., where he has played a vital role in advancing imaging technology. His innovative approaches and inventions have not only benefited his company but have also contributed significantly to the industry at large.

Collaborations

Aizawa has collaborated with notable colleagues such as Shoji Matsumoto and Yasutoki Kamezawa, working together to explore new frontiers in electrostatic imaging technologies. These collaborations have fostered an environment of creativity and innovation, further enhancing the potential of their inventions.

Conclusion

Tatsuo Aizawa's extensive contributions to the field of imaging technology through his numerous patents underline his status as a leading inventor. His dedication to innovation and collaboration has resulted in significant advancements that continue to influence the industry. As technology evolves, Aizawa's work will undoubtedly remain a cornerstone for future developments in electrostatic image processing.

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]