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For the Inventor, By the Inventor

Ichihara, Japan

Hayato Kihara

This inventor holds 16 USPTO granted patents. Top assignee: Sumitomo Chemical Company, Limited. Active years: 1995-2003.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Hayato Kihara. Retrieved from https://idiyas.com/inventor/hayato-kihara

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

USPTO Granted Patents = 16

% Patents Active = 100.0

Average Co-Inventor Count = 3.0

ph-index = 5

Forward Citations = 48(Granted Patents)


Location History:

  • Ichihara, JP (1995 - 1998)
  • Chiba, JP (1998 - 2003)

Company Filing History:

goldMedal16 out of 6,961 
 
Sumitomo Chemical Company, Limited
 patents

Years Active: 1995-2003

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16 patents (USPTO):Explore Patents
1. 6660806 - Rubber-modified styrenic resin composition and molded article thereof (2003-12-09),
2. 6417307 - Shrink film (2002-07-09),
3. 6020428 - Rubber-modified styrenci resin composition and molded article thereof (2000-02-01),
4. 5936036 - Rubber-modified styrenic resin composition and molded article thereof (1999-08-10),
5. 5902845 - Rubber-modified styrenic resin composition and its molded article (1999-05-11),
6. 5854366 - Styrene base random copolymer and process for producing the same (1998-12-29),
7. 5783646 - Process for producing styrene base polymer (1998-07-21),
8. 5726215 - Styrene resin composition and shaped article thereof (1998-03-10),
9. 5723554 - Process for producing styrenic polymer (1998-03-03),
10. 5708112 - Styrene copolymers, polystyrene compositions, and injection-molded (1998-01-13),
11. 5665833 - Method for controlling a polymerization rate of styrene resins (1997-09-09),
12. 5559186 - Thermoplastic resin compositions comprising blends of polyphenylene (1996-09-24),
13. 5534580 - Styrenic resin composition and injection- and extrusion-molded articles (1996-07-09),
14. 5489652 - Injection-molded articles (1996-02-06),
15. 5489629 - Rubber-modified polystyrene resin compositions (1996-02-06),

Title: Hayato Kihara: Innovator in Rubber-Modified Styrenic Resins

Introduction

Hayato Kihara is a prominent inventor based in Ichihara, Japan. He has made significant contributions to the field of materials science, particularly in the development of advanced resin compositions. With a total of 16 patents to his name, Kihara's work has had a substantial impact on various industries.

Latest Patents

One of Kihara's latest patents is for a rubber-modified styrenic resin composition. This innovative composition includes a rubber-modified styrenic resin that contains 10 to 35 wt. % of soft component particles. These particles have an average size of 0.1 to 0.5 µm and feature a unique occlusion structure. The composition is designed to provide excellent plane impact strength, gloss properties, and moldability, making it suitable for exterior materials, wrapping materials, and molded foam articles. Another notable patent is for a shrink film made from a non-crystalline copolymer of ethylene and an alkenyl aromatic hydrocarbon. This film boasts transparency, low-temperature shrinking properties, a high shrinkage ratio, and minimal natural shrinkage.

Career Highlights

Hayato Kihara is currently employed at Sumitomo Chemical Company, Limited, where he continues to innovate and develop new materials. His work has been recognized within the industry, and he is regarded as a leading figure in the field of polymer science.

Collaborations

Kihara has collaborated with several talented individuals, including Shuji Yoshimi and Takahiro Ishii. These collaborations have further enhanced his research and development efforts, leading to groundbreaking advancements in resin technology.

Conclusion

Hayato Kihara's contributions to the field of materials science, particularly in rubber-modified styrenic resins, highlight his innovative spirit and dedication to advancing technology. His patents reflect a commitment to improving material properties for various applications, making him a significant figure in the industry.

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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