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For the Inventor, By the Inventor

Minami-ashigara, Japan

Masakazu Iijima

USPTO Granted Patents = 30 

Average Co-Inventor Count = 5.2

ph-index = 14

Forward Citations = 471(Granted Patents)


Location History:

  • Minami Ashigara,, JP (1995)
  • Minami-ashigara, JP (1994 - 2009)
  • Kanagawa, JP (1994 - 2014)

Company Filing History:

goldMedal30 out of 11,665 
 
Fuji Xerox Co., Ltd.
 patents

Years Active: 1994-2014

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30 patents (USPTO):Explore Patents
1. 8669032 - Electrostatic-image-developing toner, production method thereof, electrostatic image developer, and image forming apparatus (2014-03-11),
2. 7514194 - Toner for developing electrostatic latent image and production method thereof, electrostatic latent image developer, image forming method, and image forming apparatus (2009-04-07),
3. 7399567 - Toner for electrostatic latent image development, electrostatic latent image developer containing the toner, and image formation method using the developer (2008-07-15),
4. 7291434 - Toner for electrostatically charged image development, manufacturing method thereof, image forming method, and image forming apparatus using the image forming method (2007-11-06),
5. 6887638 - Toner for developing electrostatic latent image, process for producing the same, process for forming image, apparatus for forming image and toner cartridge (2005-05-03),
6. 6395440 - Electrophotographic photoreceptor, process cartridge and electrophotographic apparatus using the same (2002-05-28),
7. 6020426 - Charge-transporting copolymer, method of forming charge-transporting (2000-02-01),
8. 5965063 - Charge transporting material and method of preparing charge transporting (1999-10-12),
9. 5759726 - Electrographic photosensitive member (1998-06-02),
10. 5556967 - Process for producing hydroxygallium phthalocyanine (1996-09-17),
11. 5510217 - Gallium phthalocyanine halide crystals, method for preparing the same (1996-04-23),
12. 5495011 - Process for preparing hydroxygallium phthalocyanine crystal, product (1996-02-27),
13. 5463044 - Process for preparing chlorogallium phthalocyanine crystal (1995-10-31),
14. 5463043 - Process for producing a dichlorotin phthalocyanine crystal (1995-10-31),
15. 5459004 - Process for preparing hydroxygallium phthalocyanine crystals and (1995-10-17),

Title: The Innovative Mind of Masakazu Iijima

Introduction

Masakazu Iijima, based in Minami-Ashigara, Japan, has made significant contributions to the field of electrostatic imaging technology. As an inventor, Iijima holds 30 patents that showcase his expertise and innovative spirit.

Latest Patents

Iijima's recent patents reflect advancements in toner production for electrostatic-image development. One notable invention is the "Electrostatic-image-developing toner and production method thereof," which includes a binder resin containing both crystalline and amorphous polyester resins. This toner is designed for optimal performance, with the crystalline polyester resin having a melting temperature of about 25°C to 50°C, and its content ranging from 3 wt% to 15 wt%. Another important invention by Iijima is the "Toner for developing electrostatic latent images and production method thereof." This toner comprises a binder resin, colorant, releasing agent, and a graft polymer created through graft polymerization. These innovations enhance the process of developing electrostatic latent images, showcasing Iijima's commitment to improving imaging technologies.

Career Highlights

Masakazu Iijima is a valued member of Fuji Xerox Co., Ltd., where he has been instrumental in advancing imaging technology. His extensive patent portfolio not only emphasizes his dedication to research and development but also highlights the impact of his work on the industry.

Collaborations

Throughout his career, Iijima has collaborated with esteemed colleagues such as Katsumi Nukada and Katsumi Daimon. These partnerships have led to the development of groundbreaking technologies and have fostered an environment of innovation within the organization.

Conclusion

Masakazu Iijima stands as a notable inventor in the realm of electrostatic imaging technology. With a robust portfolio of patents and collaborative efforts with talented colleagues, Iijima continues to pave the way for advancements in the field. His innovative contributions will undoubtedly shape the future of imaging technology.

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