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For the Inventor, By the Inventor

Otake, Japan

Takashi Nagai

This inventor holds 19 USPTO granted patents. Top assignees: General Electric Company, Ge Plastics Japan Ltd.. Active years: 1993-2001.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Takashi Nagai. Retrieved from https://idiyas.com/inventor/takashi-nagai

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

USPTO Granted Patents = 19

% Patents Active = 100.0

Average Co-Inventor Count = 3.3

ph-index = 6

Forward Citations = 174(Granted Patents)


Location History:

  • Otake City, JP (1993)
  • Moka, JP (1996)
  • Utsunomiya, JP (1997 - 2000)
  • Otake, JP (1994 - 2001)

Company Filing History:

goldMedal18 out of 52,387 
 
General Electric Company
 patents
silverMedal1 out of 35 
 
Ge Plastics Japan Ltd.
 patents

Years Active: 1993-2001

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19 patents (USPTO):Explore Patents
1. 6281299 - Manufacturing method for transparent polyester/polycarbonate compositions (2001-08-28),
2. 6103827 - Polycarbonate or polyestercarbonate/acrylic resin or (2000-08-15),
3. 5973101 - Aromatic polycarbonate resin composition (1999-10-26),
4. 5883194 - Polycarbonate or polyestercarbonatel acrylic resin or (1999-03-16),
5. 5880248 - Polycarbonate, copolycarbonate resin compositions and preparing method (1999-03-09),
6. 5859172 - Polycarbonate, copolycarbonate resin compositions and preparing method (1999-01-12),
7. 5717057 - Method of manufacturing polycarbonate (1998-02-10),
8. 5670605 - Copolycarbonate, a copolycarbonate composition, and a method for their (1997-09-23),
9. 5646233 - Polycarbonate copolycarbonate resin compositions and preparing method (1997-07-08),
10. 5606009 - Copolymerized polycarbonates (1997-02-25),
11. 5606008 - Preparation method of polycarbonate resin (1997-02-25),
12. 5606007 - Processes for preparing aromatic polycarbonates (1997-02-25),
13. 5550205 - Copolycarbonates and manufacturing method for them (1996-08-27),
14. 5514767 - Hot-melt polycondensation method for manufacturing a polycarbonate (1996-05-07),
15. 5510450 - Method of producing copolymerized polycarbonates (1996-04-23),

Title: Takashi Nagai: Innovator in Polymer Engineering

Introduction

Takashi Nagai, a prolific inventor hailing from Otake, Japan, has made significant contributions to the field of polymer engineering. With a total of 19 patents to his name, his innovations primarily focus on advancements in transparent polyester and polycarbonate compositions, enhancing both productivity and material properties.

Latest Patents

One of Takashi Nagai's notable recent patents is a manufacturing method for transparent polyester/polycarbonate compositions. This innovative approach utilizes equipment designed for melt polymerization of polycarbonates or polyesters. The process involves adding polyester or polycarbonate resin to either a polymerization vessel or the outlet side of the polymerization vessel of manufacturing equipment. This method achieves a high productivity rate while ensuring that the final product exhibits superior impact strength and solvent resistance.

Another patent features a thermoplastic resin composition that boasts improved transparency. The composition includes polycarbonate resin and/or polyester carbonate resin, blended with acrylic resin and/or methacrylic resin, thereby enhancing both functionality and aesthetic appeal.

Career Highlights

Takashi Nagai's career is marked by his tenure at prestigious companies, including General Electric Company and GE Plastics Japan Ltd. During his time in these roles, he has honed his expertise in polymer technology, contributing to significant advancements in manufacturing processes and material performance.

Collaborations

Nagai has collaborated with several talented peers, including Takeshi Sakashita and Tomoaki Shimoda. Their collective efforts have further propelled the development of innovative solutions in the polymer sector, underscoring the collaborative spirit inherent in engineering and technological advancements.

Conclusion

In conclusion, Takashi Nagai stands as a noteworthy figure in the realm of polymer engineering. His extensive patent portfolio reflects both his commitment to innovation and his impact on the industry. Through his work, he has not only advanced the manufacturing capabilities of polyester and polycarbonate compositions but has also inspired future generations of inventors and engineers.

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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