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For the Inventor, By the Inventor

Daejeon, South Korea

Dae Il Hwang

USPTO Granted Patents = 11 

 

Average Co-Inventor Count = 7.3

ph-index = 2

Forward Citations = 9(Granted Patents)


Location History:

  • Incheon, KR (2002 - 2003)
  • Daejeon, KR (2000 - 2013)

Company Filing History:

goldMedal11 out of 61 
 
Samsung Fine Chemicals Co., Ltd.
 patents

Years Active: 2000-2013

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11 patents (USPTO):
1. 8603717 - Toner having multiple inflection points on storage modulus curve with respect to temperature and method of preparing the same (2013-12-10),
2. 8492060 - Method of forming toner image and electrophotographic image forming apparatus capable of realizing wide color gamut (2013-07-23),
3. 8475995 - Toner having core-shell structure and method of preparing the same (2013-07-02),
4. 8389196 - Method of preparing toner (2013-03-05),
5. 8389188 - Toner using resin having active hydrogen-containing group and method of preparing the same (2013-03-05),
6. 8206884 - Method of preparing toner using micro-suspension particles and toner prepared using the method digital image data (2012-06-26),
7. 6586616 - Process for preparing(R)-4-cyano-3-hydroxybutyric acid ester (2003-07-01),
8. 6417403 - Process for preparing chiral (s)-2,3-disubstituted-1-propylamine derivatives (2002-07-09),
9. 6288272 - Continuous process for preparing optically pure (s)-3,4-dihydroxybutyric acid derivatives (2001-09-11),
10. 6221639 - Process for preparing optically pure(S)-3,4-dihydroxybutyric acid derivatives (2001-04-24),
11. 6124122 - Process for preparing optically pure (S)-3-hydroxy-.gamma.-butyrolactone (2000-09-26),

Title: Innovations of Dae Il Hwang

Introduction

Dae Il Hwang is a prominent inventor based in Daejeon, South Korea. He has made significant contributions to the field of toner technology, holding a total of 11 patents. His work focuses on enhancing the performance and quality of toners used in electrophotographic image forming apparatuses.

Latest Patents

Among his latest patents is a toner that features multiple inflection points on the storage modulus curve with respect to temperature. This innovative toner includes a binder resin, a coloring agent, and at least one additive, allowing for improved performance in various temperature conditions. Another notable patent involves a method of forming a toner image and an electrophotographic image forming apparatus capable of realizing a wide color gamut. This method utilizes three different toners—yellow, magenta, and cyan—each with specific color coordinate values to achieve vibrant and accurate color reproduction.

Career Highlights

Dae Il Hwang is currently employed at Samsung Fine Chemicals Co., Ltd., where he continues to develop advanced toner technologies. His expertise in this area has positioned him as a key figure in the industry, contributing to the company's reputation for innovation.

Collaborations

He has collaborated with notable coworkers, including Woo Young Yang and Keon Il Kim, to further enhance the development of toner technologies. Their combined efforts have led to significant advancements in the field.

Conclusion

Dae Il Hwang's contributions to toner technology exemplify the impact of innovation in the field of electrophotography. His patents reflect a commitment to improving the quality and performance of imaging technologies, making him a valuable inventor in the industry.

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