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For the Inventor, By the Inventor

Tokyo, Japan

Masaaki Yamaji

This inventor holds 10 USPTO granted patents. Top assignee: Canon Kabushiki Kaisha. Active years: 1990-2000.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Masaaki Yamaji. Retrieved from https://idiyas.com/inventor/masaaki-yamaji

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

USPTO Granted Patents = 10

% Patents Active = 100.0

Average Co-Inventor Count = 1.5

ph-index = 6

Forward Citations = 88(Granted Patents)


Location History:

  • Tokyo, JP (1990 - 1996)
  • Yokohama, JP (1994 - 2000)

Company Filing History:

goldMedal10 out of 92,994 
 
Canon Kabushiki Kaisha
 patents

Years Active: 1990-2000

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10 patents (USPTO):Explore Patents
1. 6032007 - Developing device having magnetic seal (2000-02-29),
2. 6029030 - Developing apparatus with magnetic seal (2000-02-22),
3. 5574545 - Method for transferring toner from developer carrying member to image (1996-11-12),
4. 5402215 - Image forming apparatus (1995-03-28),
5. 5359397 - Developing apparatus (1994-10-25),
6. 5129357 - Magnetic brush developing apparatus wherein a point of inflection in the (1992-07-14),
7. 5070812 - Electrostatic latent image developing apparatus (1991-12-10),
8. 5051782 - Electrostatic latent image developing apparatus (1991-09-24),
9. 4933254 - Method and apparatus for transferring toner from carrying member to (1990-06-12),
10. 4916492 - Developer method and apparatus (1990-04-10),

Title: Masaaki Yamaji: Innovator in Developing Technology

Introduction

Masaaki Yamaji is a prominent inventor based in Tokyo, Japan. He has made significant contributions to the field of developing technology, particularly in the area of magnetic seals. With a total of 10 patents to his name, Yamaji continues to push the boundaries of innovation in his field.

Latest Patents

Yamaji's latest patents include a developing device that features a magnetic seal. This device is designed to suppress and prevent the slipping-through of a developer to the end portions of a developing sleeve. It also aims to prevent the leakage of the developer due to shocks or other disturbances. The developing device includes a developer sleeve with a magnet roller and magnet seal members that regulate the movement of toner. The innovative design ensures that the magnetic-flux density is optimized to enhance performance and reliability.

Another notable patent is a developing apparatus that comprises a developing container for containing a magnetic developing agent. This apparatus features a developing agent bearing member and an internal magnet, along with a magnetic seal member that prevents leakage at the ends of the bearing member. The design of this apparatus showcases Yamaji's commitment to improving the efficiency and effectiveness of developing technologies.

Career Highlights

Masaaki Yamaji is currently employed at Canon Kabushiki Kaisha, a leading company in imaging and printing technology. His work at Canon has allowed him to collaborate with other talented professionals in the field, further enhancing his contributions to innovation.

Collaborations

Yamaji has worked alongside notable colleagues such as Norihisa Hoshika and Hatsuo Tajima. Their collaborative efforts have led to advancements in developing technology and have contributed to the success of their projects.

Conclusion

Masaaki Yamaji is a distinguished inventor whose work in developing technology has made a significant impact in the industry. His innovative patents and collaborations reflect his dedication to advancing technology and improving the efficiency of developing processes.

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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