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For the Inventor, By the Inventor

Yokohama, Japan

Yasuo Mitsuhashi

USPTO Granted Patents = 27

Average Co-Inventor Count = 3.2

ph-index = 14

Forward Citations = 482(Granted Patents)


Company Filing History:

goldMedal27 out of 90,809 
 
Canon Kabushiki Kaisha
 patents

Years Active: 1979-1994

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27 patents (USPTO):Explore Patents
1. 5310812 - Binder resin for a toner for developing electrostatic images, and (1994-05-10),
2. 5219947 - Binder resin for a toner for developing electrostatic images, and (1993-06-15),
3. 5014089 - Developer in an image forming device having a binding resin and magnetic (1991-05-07),
4. 4985327 - Non-magnetic toner (1991-01-15),
5. 4966829 - Toner for developing electrostatic images, binder therefor and process (1990-10-30),
6. 4957840 - Developer and image forming device (1990-09-18),
7. 4737432 - Positively chargeable toner and developer for developing electrostatic (1988-04-12),
8. 4699865 - Image forming method (1987-10-13),
9. 4640882 - Image forming method of negative latent images using silica particles (1987-02-03),
10. 4626487 - Particulate developer containing inorganic scraper particles and image (1986-12-02),
11. 4622281 - Magnetic color toner containing gamma ferric oxide particles (1986-11-11),
12. 4592987 - Toner application method and developer composition (1986-06-03),
13. 4590140 - Toner application method and treated magnetic particles for use therein (1986-05-20),
14. 4568625 - Developer comprising a modified silicone oil and development process for (1986-02-04),
15. 4565766 - Developing powder (1986-01-21),

Title: **Yasuo Mitsuhashi: Innovator in Electrostatic Imaging Technology**

Introduction

Yasuo Mitsuhashi, a prolific inventor based in Yokohama, Japan, has made significant contributions to the field of electrostatic imaging technology. With an impressive portfolio of 27 patents, Mitsuhashi's work primarily focuses on the development of advanced binder resins and toners that enhance the quality and efficiency of electrostatic processes.

Latest Patents

Among his latest innovations is a patent for a binder resin designed for toners used in developing electrostatic images. This resin composition features a unique combination of characteristics aimed at improving fixability, anti-offset, anti-sticking, and pulverizability. Specifically, the resin contains between 0.1 to 60 wt. % of a chloroform-insoluble or a THF (tetrahydrofuran)-insoluble component and a THF-soluble component. The resulting molecular weight distribution, as indicated by Gel Permeation Chromatography (GPC), presents a main peak within the molecular weight range of 1,000 to 25,000, along with a sub-peak in the range of 2,000 to 150,000. This innovative binder resin is developed through a two-step polymerization process, comprising both solution and suspension polymerization steps.

Career Highlights

Mitsuhashi currently holds a prominent position at Canon Kabushiki Kaisha, where he has been instrumental in advancing toner technology and research in electrostatic imaging. His extensive experience and technical expertise have positioned him as a leading figure in this specialized field.

Collaborations

Throughout his career, Yasuo Mitsuhashi has collaborated with notable colleagues, including Masaki Uchiyama and Kiichiro Sakashita, further enriching the innovative environment at Canon. Their combined efforts have played a fundamental role in the continued progression of imaging technologies.

Conclusion

Yasuo Mitsuhashi's dedication to innovation in electrostatic imaging technology is evident through his numerous patents and collaborations. As he continues to develop solutions that enhance the efficiency and performance of toners, his work stands as a pivotal contribution to the industry and exemplifies the spirit of innovation that drives progress in technology.

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