Hideki Kuwabara

This inventor holds 24 USPTO granted patents, primarily in Polyolefin Processing. Top assignees: Japan Styrene Paper Corporation, Japan Styrene Corporation, Japan Styrene Corporation of Japan. Active years: 1984-1991.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Hideki Kuwabara. Retrieved from https://idiyas.com/inventor/hideki-kuwabara-uzq1bfp9

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

USPTO Granted Patents = 24

% Patents Active = 100.0

Average Co-Inventor Count = 2.6

ph-index = 14

Forward Citations = 443(Granted Patents)

Location History:

Hatano, JP (1984 - 1985)
Hadano, JP (1986 - 1991)

Company Filing History:

22 out of 48

Japan Styrene Paper Corporation

patents

1 out of 1

Japan Styrene Corporation

patent

1 out of 1

Japan Styrene Corporation of Japan

patent

4. 1 out of 1,326

Mitsubishi Jukogyo Kabushiki Kaisha

patents

where one patent can have more than one assignee

Years Active: 1984-1991

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Areas of Expertise:

Pre-Foamed Particles

Polyethylene

Polypropylene Resin

Polyolefin

Expanded Particles

Production Method

Molded Articles

Energy Absorber

Casting Method

Random Copolymer

Pressurizing Treatment

Foamed Articles

24 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 5053435 - Pre-foamed particles of uncrosslinked, linear low-density polyethylene (1991-10-01),

2. 5015667 - Pre-foamed beads of polyethylene base resin (1991-05-14),

3. 4948817 - Pre-foamed particles of uncrosslinked, linear low-density polyethylene (1990-08-14),

4. 4889671 - Production method of prefoamed particles of polyolefin resin (1989-12-26),

5. 4840973 - Polypropylene resin prefoamed particles (1989-06-20),

6. 4777000 - Production method of expansion-molded article of polypropylene resin (1988-10-11),

7. 4769393 - Expanded particles of modified polyethylene and foamed articles obtained (1988-09-06),

8. 4711287 - Casting method (1987-12-08),

9. 4704239 - Process for the production of expanded particles of a polymeric material (1987-11-03),

10. 4695593 - Prefoamed propylene polymer-base particles, expansion-molded article (1987-09-22),

11. 4692507 - Propylene-base random copolymer particles and production process thereof (1987-09-08),

12. 4676939 - Process for the production of expanded particles of a polypropylene resin (1987-06-30),

13. 4657937 - Energy absorber (1987-04-14),

14. 4617323 - Prefoamed particles of crosslinked propylene-type resin and molded (1986-10-14),

15. 4602082 - Propylene-base random copolymer particles and production process thereof (1986-07-22),

Title: The Innovative Contributions of Hideki Kuwabara

Introduction: Hideki Kuwabara, an accomplished inventor from Hadano, Japan, has made significant strides in the field of polyethylene and related materials. With an impressive portfolio of 24 patents, Kuwabara has contributed to innovations that enhance the properties and applications of polyethylene-based substances.

Latest Patents: Kuwabara's recent patents showcase his expertise in developing advanced materials. One notable patent involves pre-foamed particles of uncrosslinked, linear low-density polyethylene. This innovative material is characterized by its crystalline structure, which features two endothermic peaks as observed in differential scanning calorimetry (DSC). The lower endothermic peak exhibits an energy of 5 J/g or more, indicating significant thermal characteristics. Additionally, he has worked on a method for producing pre-foamed beads of polyethylene base resin; these beads are crosslinked and demonstrate exceptional rigidity and dimensional accuracy, making them suitable for high-performance molded articles.

Career Highlights: Kuwabara has had a fruitful career with notable contributions to industry-leading companies, including Japan Styrene Paper Corporation and Mitsubishi Jukogyo Kabushiki Kaisha. His work has not only advanced the understanding and capabilities of polyethylene materials but has also propelled the companies he has been associated with into new realms of innovation.

Collaborations: Throughout his career, Kuwabara has collaborated with talented professionals such as Toru Yamaguchi and Shohei Yoshimura. Their combined expertise has undoubtedly contributed to the success of his projects and the advancement of their respective fields.

Conclusion: Hideki Kuwabara's inventive spirit and dedication to advancing polyethylene technologies underscore his significance in the realm of materials science. With a robust list of patents and impactful collaborations, his work continues to influence the industry and inspire future innovations in polymer applications.

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]