Waki, Japan

Hiroshi Nishikawa

This inventor holds 5 USPTO granted patents and 2 EPO patents. Top assignees: Mitsui Petrochemical Industries, Ltd., Mitsui Chemicals, Inc.. Active years: 1992-2008.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Hiroshi Nishikawa. Retrieved from https://idiyas.com/inventor/hiroshi-nishikawa-5usdx8yx

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

Calculating rank

% Patents Active = 100.0


Average Co-Inventor Count = 4.3

ph-index = 4

Forward Citations = 20(Granted Patents)


Location History:

  • Yamaguchi, JP (1992)
  • Kuga, JP (1994)
  • Waki-cho, JP (1998 - 1999)
  • Sodegaura, JP (2008)

Company Filing History:


Years Active: 1992-2008

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5 patents (USPTO):Explore Patents

Title: The Innovator Behind Propylene Innovations: Hiroshi Nishikawa

Introduction

Hiroshi Nishikawa, an inventive mind from Waki-cho, Japan, has made significant contributions to the field of polymer chemistry. With a total of five patents to his name, he has established a reputation for developing innovative solutions that address practical challenges in the industry.

Latest Patents

Among his latest inventions, two notable patents stand out. The first is a method for producing propylene polymer particles, which focuses on a propylene random copolymer that meets specific requirements for diverse molded products. The second is a novel method for treating polyolefin. This method involves a ligand-decomposition process where polyolefin, produced using a transition metal compound containing cyclopentadienyl ligands, is treated with a ligand decomposer to eliminate unwanted ligands. This innovative approach results in polyolefin with reduced odor during the molding process, enhancing the material's usability in various applications.

Career Highlights

Hiroshi has garnered substantial experience throughout his career, notably working with Mitsui Petrochemical Industries and Mitsui Chemicals. His endeavors in these companies have allowed him to refine his skills and contribute to important advancements in polymer technology. His innovative spirit has not only propelled his career but has also influenced the field at large.

Collaborations

Throughout his journey, Hiroshi Nishikawa has had the privilege of collaborating with talented individuals such as Satoru Ohtani and Mamoru Kioka. These partnerships have played a vital role in fostering creativity and facilitating the successful development of his patents.

Conclusion

Hiroshi Nishikawa's portfolio of inventions showcases his dedication to advancing polymer chemistry. His contributions, particularly in the treatment of polyolefin and the production of propylene random copolymers, reflect a commitment to innovation that continues to impact the industry positively. As we look at the evolution of materials used in various applications, Nishikawa's work remains relevant in shaping the future of polymer technology.

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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