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For the Inventor, By the Inventor

Toride, Japan

Masaharu Miura

USPTO Granted Patents = 24

 

Average Co-Inventor Count = 5.5

ph-index = 13

Forward Citations = 449(Granted Patents)


Location History:

  • Houya-shi, Tokyo, JP (1994)
  • Susono, JP (2003 - 2013)
  • Toride, JP (2017 - 2022)
  • Ibaraki, JP (2023)

Company Filing History:

goldMedal23 out of 90,594 
 
Canon Kabushiki Kaisha
 patents
silverMedal1 out of 832,680 
Other
 patents

Years Active: 1994-2025

where 'Filed Patents' based on already Granted Patents

24 patents (USPTO):
1. 12487539 - Fine particle, external additive for toners, and toner (2025-12-02),
2. 12360470 - External additive for toner, toner and image forming apparatus (2025-07-15),
3. 12222677 - Fine particle, external additive for toner, toner, two-component developer, and method for manufacturing toner (2025-02-11),
4. 11720036 - Toner (2023-08-08),
5. 11429032 - Toner and method of producing toner (2022-08-30),
6. 10877386 - Toner (2020-12-29),
7. 10852652 - Toner (2020-12-01),
8. 10809640 - Toner (2020-10-20),
9. 10775710 - Toner (2020-09-15),
10. 10642178 - Toner (2020-05-05),
11. 10423090 - Magenta toner and toner kit (2019-09-24),
12. 10409186 - Toner and image forming method (2019-09-10),
13. 10234777 - Toner and method for manufacturing toner (2019-03-19),
14. 10216108 - Toner production method and polymer (2019-02-26),
15. 10133201 - Toner (2018-11-20),

Title: Innovations by Masaharu Miura: A Spotlight on his Patents and Contributions

Introduction: Masaharu Miura is a prominent inventor based in Toride, Japan, known for his significant contributions to the field of toner and developer technology. With a remarkable portfolio that includes 21 patents, Miura has established himself as a key figure in innovation, particularly in the realm of fine particle technologies.

Latest Patents: Among his latest patents, Miura has developed several groundbreaking innovations. One notable patent is for a fine particle of a silicon polymer featuring both a siloxane group and a silanol group. This fine particle exhibits a controlled moisture adsorption amount at 30° C and 80% RH, ranging from 1.0 mg/g to 22.0 mg/g. The patent also specifies the silanol group content through a titration method using KOH, alongside detailing the particle diameter specifications, which range from 0.05 μm to 0.30 μm.

Furthermore, Miura's advancements in toner technology include a patented composition comprising toner particles made from a binder resin that includes a polyester resin and a sulfonic acid group-containing polyolefin resin. The innovative use of this polyolefin resin, bonded to a vinyl polymer, is essential in achieving the desired properties of the toner.

Career Highlights: Miura's career is marked by his association with Canon Kabushiki Kaisha, where he has been instrumental in driving forward innovations related to imaging technology. His 21 patents reflect his deep understanding of material sciences and engineering, which have practical applications in various aspects of toner and developer production.

Collaborations: Throughout his career, Masaharu Miura has collaborated with notable individuals such as Yuichi Mizo and Koh Ishigami. These collaborations have enhanced his research and contributions, allowing for a shared wealth of knowledge and experience within the field.

Conclusion: In summary, Masaharu Miura has made significant strides in the development of advanced toner technologies and fine particles. His contributions at Canon Kabushiki Kaisha and his impressive patent portfolio showcase his dedication to innovation. As he continues to explore new horizons in the industry, Miura remains a key figure in the advancement of imaging technologies.

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