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For the Inventor, By the Inventor

Otsu, Japan

Hiroaki Kobayashi

This inventor holds 15 USPTO granted patents. Top assignee: Toray Industries, Inc.. Active years: 1981-1989.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Hiroaki Kobayashi. Retrieved from https://idiyas.com/inventor/hiroaki-kobayashi-ol8oxjg3

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

Calculating rank
USPTO Granted Patents = 15

% Patents Active = 100.0

Average Co-Inventor Count = 2.7

ph-index = 10

Forward Citations = 212(Granted Patents)


Location History:

  • Ohtsu, JP (1983 - 1984)
  • Otsu, JP (1981 - 1989)
  • Ootsu, JP (1989)

Company Filing History:

goldMedal15 out of 3,586 
 
Toray Industries, Inc.
 patents

Years Active: 1981-1989

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15 patents (USPTO):Explore Patents
1. 4849287 - Image transfer material for thermal recording (1989-07-18),
2. 4831112 - Biaxially oriented poly-p-phenylene sulfide film (1989-05-16),
3. 4735996 - Shaped article of fluorocarbon polymer having adhesive surface (1988-04-05),
4. 4732814 - Polyester film with smooth and highly adhesive surface and method of (1988-03-22),
5. 4672506 - Capacitor (1987-06-09),
6. 4645702 - Magnetic recording medium (1987-02-24),
7. 4488954 - Method of treating inner surface of plastic tube with plasma (1984-12-18),
8. 4486578 - Stabilized polyphenylene sulfide and method for producing same (1984-12-04),
9. 4470944 - Process for producing an aromatic polyimide film (1984-09-11),
10. 4440915 - Stabilized polyphenylene sulfide and method for producing same (1984-04-03),
11. 4426479 - Poly-p-phenylene sulfide resin composition and film made thereof (1984-01-17),
12. 4400424 - Fabrics having an excellent color developing property and a process for (1983-08-23),
13. 4370469 - Polyphenylenesulfide sheet-like material (1983-01-25),
14. 4337768 - Polyvinyl chloride sheet and method of making the same (1982-07-06),
15. 4286018 - Biaxially oriented poly-p-phenylene sulfide films (1981-08-25),

Title: **Hiroaki Kobayashi: Innovator in Thermal Recording Materials**

Introduction

Hiroaki Kobayashi, an accomplished inventor based in Otsu, Japan, has made significant contributions to the field of thermal recording materials. With a total of 15 patents to his name, he has demonstrated a commitment to innovation and excellence in his craft.

Latest Patents

Among his latest inventions, Kobayashi has developed an advanced image transfer material for thermal recording. This technology features a biaxially oriented poly-p-phenylene sulfide film created from a specialized resin composition. The film consists primarily of poly-p-phenylene sulfide, enhanced with 20-1000 ppm of metal from either group IA or IIA of the periodic table, along with 100-600 ppm of nitrogen. This innovative film achieves remarkable mechanical properties and dimensional stability, while also boasting exceptional clarity.

Career Highlights

Kobayashi is currently employed at Toray Industries, Inc., where he continues to work on innovative solutions in materials science. His expertise in polymer chemistry and his rigorous approach to research have earned him recognition within the industry.

Collaborations

Throughout his career, Kobayashi has collaborated with notable colleagues such as Kenji Hatada and Toshiyuki Asakura. These partnerships have facilitated the development of cutting-edge technologies and strengthened the innovative capabilities of their projects.

Conclusion

Hiroaki Kobayashi stands out as a key figure in the advancement of thermal recording materials. His extensive patent portfolio and ongoing contributions at Toray Industries, Inc. showcase his dedication to innovation, making him an influential inventor in his field.

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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