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For the Inventor, By the Inventor

Sodegaura, Japan

Hiroaki Katayama

USPTO Granted Patents = 13


Average Co-Inventor Count = 3.6

ph-index = 5

Forward Citations = 91(Granted Patents)


Location History:

  • Ichihara, JP (1998 - 2001)
  • Narashino, JP (2001 - 2002)
  • Chiba, JP (2001 - 2002)
  • Sodegaura, JP (2001 - 2003)
  • Daijuku, Sodegaura-shi, Chiba, JP (2003)

Company Filing History:

goldMedal13 out of 6,892 
 
Sumitomo Chemical Company, Limited
 patents

Years Active: 1998-2003

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13 patents (USPTO):Explore Patents
1. 6660816 - Process for preparing olefin polymers (2003-12-09),
2. 6613850 - Method for feeding boron compounds, fine particles of boron compounds, catalyst components for the polymerization of olefins comprising them, and processes for the production of the particles (2003-09-02),
3. 6492294 - Transition metal compound, olefin polymerization catalyst component, olefin polymerization catalyst and process for producing olefin polymer (2002-12-10),
4. 6482765 - Modified particles, carrier prepared therefrom, olefin polymerization catalyst component prepared therefrom, olefin polymerization catalyst prepared therefrom, and process for preparing olefin polymer (2002-11-19),
5. 6333388 - Aluminum compound-containing solid catalyst component, catalyst for olefin polymerization and method for producing olefin polymer (2001-12-25),
6. 6329478 - Transition metal complex, process for producing the same, olefin polymerization catalyst containing the transition metal complex and process for producing olefin polymers (2001-12-11),
7. 6284699 - Modified particles, catalyst for olefin polymerization containing the same, and method for producing olefin polymer (2001-09-04),
8. 6242622 - Transition metal compound, olefin polymerization catalyst component, olefin polymerization catalyst and process for producing olefin polymer (2001-06-05),
9. 6184319 - Olefin polymer, films or sheets made therefrom, and process for the production of olefin polymer (2001-02-06),
10. 6100213 - Aluminum compound-containing solid catalyst component, catalyst for (2000-08-08),
11. 6066704 - Transition metal complex, catalyst for olefin polymerization, and (2000-05-23),
12. 6034190 - Olefin polymerization catalyst component (2000-03-07),
13. 5840646 - Olefin polymerization catalyst component (1998-11-24),

Title: Hiroaki Katayama: Innovator in Olefin Polymerization

Introduction

Hiroaki Katayama is a prominent inventor based in Sodegaura, Japan. He has made significant contributions to the field of polymer chemistry, particularly in the area of olefin polymers. With a total of 13 patents to his name, Katayama's work has had a substantial impact on the industry.

Latest Patents

Among his latest patents is a process for preparing olefin polymers. This innovative method involves feeding boron compounds and fine particles of boron compounds as catalyst components for the polymerization of olefins. The process includes a method for continuously feeding a boron compound suspended or slurried in a solvent to a reactor. The boron compound is in the form of fine particles, having a maximum particle diameter of 50 µm or less. Additionally, he has developed methods for producing boron compounds in fine particle form through various techniques, including dissolution in aromatic hydrocarbon solvents and subsequent precipitation in aliphatic hydrocarbon solvents.

Career Highlights

Hiroaki Katayama is currently employed at Sumitomo Chemical Company, Limited, where he continues to advance his research and development efforts. His work has been instrumental in enhancing the efficiency and effectiveness of olefin polymerization processes.

Collaborations

Throughout his career, Katayama has collaborated with notable colleagues, including Hideki Sato and Akio Imai. These partnerships have fostered innovation and contributed to the success of various projects within the company.

Conclusion

Hiroaki Katayama's contributions to the field of polymer chemistry, particularly in olefin polymerization, highlight his role as a leading inventor. His innovative methods and collaborative efforts continue to shape the industry and inspire future advancements.

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