Ichihara, Japan

Yasushi Shiraki

This inventor holds 12 USPTO granted patents and 2 published patent applications, plus 1 CIPO patent and 2 EPO patents. Top assignees: Idemitsu Petrochemical Co., Ltd., Idemitsu Kosan Company, Limited. Active years: 1988-2016.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Yasushi Shiraki. Retrieved from https://idiyas.com/inventor/yasushi-shiraki

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

USPTO Granted Patents = 12 

% Patents Active = 50.0


 

Average Co-Inventor Count = 2.5

ph-index = 6

Forward Citations = 93(Granted Patents)


Location History:

  • Yamaguchi, JP (2003)
  • Tokuyama, JP (1988 - 2004)
  • Sodegaura, JP (2012)
  • Chiba, JP (2014)
  • Ichihara, JP (2009 - 2016)

Company Filing History:


Years Active: 1988-2016

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12 patents (USPTO):Explore Patents

Title: The Innovative Journey of Yasushi Shiraki

Introduction

Yasushi Shiraki, an accomplished inventor based in Ichihara, Japan, is known for his significant contributions to the field of chemical engineering and his impressive portfolio of patents. With a total of 12 patents to his name, Shiraki has made notable advancements in production processes for various chemical compounds, demonstrating his commitment to innovation and excellence.

Latest Patents

Among his recent inventions, Yasushi Shiraki has developed a groundbreaking method for producing α-olefin. This production process is distinguished by its ability to yield α-olefins, such as 1-hexene to 1-tetradecene, without complying with the Shultz-Flory distribution, particularly achieving high efficiency in producing 1-octene. The process utilizes a specific chromium compound, an aminophosphine ligand, and a promoter to enhance yields efficiently.

Additionally, he has focused on methods for producing α,β-unsaturated carboxylic acid-N,N-disubstituted amides and 3-alkoxycarboxylic acid-N,N-disubstituted amides. These innovations allow for the effective large-scale production of amide compounds that serve as solvents or detergents, showcasing his dedication to creating cost-effective and scalable solutions.

Career Highlights

Yasushi Shiraki's professional journey includes valuable experiences at reputable companies such as Idemitsu Petrochemical Co., Ltd. and Idemitsu Kosan Company, Limited. His work in these organizations has significantly influenced his inventive capabilities, enabling him to apply practical knowledge to his patents.

Collaborations

Throughout his career, Yasushi has collaborated with notable individuals such as Takao Tamura and Masahiko Kuramoto. These partnerships have contributed to Shiraki's success as an inventor and have facilitated the exchange of innovative ideas within the field of chemical engineering.

Conclusion

In summary, Yasushi Shiraki's contributions to the field of chemical engineering through his patents reflect his ingenuity and commitment to enhancing production processes. His innovative methods and collaborative spirit continue to inspire future advancements in the industry, firmly establishing him as a significant figure in the realm of inventions.

Profile summary based on public USPTO records.
Data Sources: USPTO Patent Grant XML, Patent Center, EPO & CIPO • Normalized by IDiyas Innovation Graph. Methodology & provenance architecturePlease report any incorrect information to [email protected]
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