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For the Inventor, By the Inventor

Iwakuni, Japan

Takeshi Muranaka

This inventor holds 10 USPTO granted patents. Top assignees: Mitsui Petrochemical Industries, Ltd., Shell Oil Comapny. Active years: 1987-1995.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Takeshi Muranaka. Retrieved from https://idiyas.com/inventor/takeshi-muranaka

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

USPTO Granted Patents = 10

% Patents Active = 100.0

Average Co-Inventor Count = 4.1

ph-index = 6

Forward Citations = 97(Granted Patents)


Location History:

  • Ichihara, JP (1989)
  • Iwakuni, JP (1987 - 1995)

Company Filing History:

goldMedal8 out of 1,008 
 
Mitsui Petrochemical Industries, Ltd.
 patents
silverMedal2 out of 7,646 
 
Shell Oil Comapny
 patents

Years Active: 1987-1995

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10 patents (USPTO):Explore Patents
1. 5385998 - Random 1-butene/ethylene copolymer (1995-01-31),
2. 5336747 - Random 1-butene/ethylene copolymer (1994-08-09),
3. 5091346 - Composition for producing ceramics (1992-02-25),
4. 4931526 - .alpha.-olefinic random copolymer and production process thereof (1990-06-05),
5. 4801672 - Random 1-butene copolymer (1989-01-31),
6. 4798866 - Branched alpha-olefin polymer composition and process for its production (1989-01-17),
7. 4778870 - Random 1-butene/ethylene copolymer (1988-10-18),
8. 4734328 - Crystalline random propylene copolymer composition and composite (1988-03-29),
9. 4726999 - Laminated structure comprising a substrate layer composed of a (1988-02-23),
10. 4642269 - Crystalline random propylene copolymer composition and composite (1987-02-10),

Title: The Innovations of Takeshi Muranaka

Introduction

Takeshi Muranaka is a prominent inventor based in Iwakuni, Japan. He has made significant contributions to the field of polymer science, particularly in the development of copolymers. With a total of 10 patents to his name, Muranaka's work has had a lasting impact on the industry.

Latest Patents

Among his latest innovations are two notable patents for a highly crystalline semi-rigid random 1-butene/ethylene copolymer. This copolymer consists of 1-butene and ethylene, exhibiting a range of characteristics that enhance its utility in various applications. The detailed specifications of these characteristics are outlined in his patent documentation.

Career Highlights

Muranaka has had a distinguished career, working with leading companies in the petrochemical industry. He has been associated with Mitsui Petrochemical Industries, Ltd. and Shell Oil Company, where he has applied his expertise in polymer development. His work has contributed to advancements in materials science and engineering.

Collaborations

Throughout his career, Muranaka has collaborated with notable colleagues, including Norio Kashiwa and Masaki Kohyama. These partnerships have fostered innovation and have led to the successful development of new materials.

Conclusion

Takeshi Muranaka's contributions to polymer science and his impressive portfolio of patents underscore his role as a leading inventor in the field. His work continues to influence the industry and inspire future innovations.

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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