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For the Inventor, By the Inventor

Shizuoka, Japan

Mikio Nakai

This inventor holds 6 USPTO granted patents. Top assignee: Polyplastics Co., Ltd.. Active years: 1989-1998.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Mikio Nakai. Retrieved from https://idiyas.com/inventor/mikio-nakai

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

USPTO Granted Patents = 6

% Patents Active = 100.0

Average Co-Inventor Count = 1.2

ph-index = 6

Forward Citations = 72(Granted Patents)


Location History:

  • Fuji, JP (1989)
  • Shizuoka, JP (1992 - 1998)

Company Filing History:

goldMedal6 out of 381 
 
Polyplastics Co., Ltd.
 patents

Years Active: 1989-1998

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6 patents (USPTO):Explore Patents
1. 5766507 - Liquid-crystal resin composition for molding applications having (1998-06-16),
2. 5409979 - Liquid-crystal polyester resin composition containing specified mold (1995-04-25),
3. 5268414 - Liquid-crystal polyester resin composition which exhibits excellent high (1993-12-07),
4. 5160786 - Resin material for inserting lead frame and molded component thereof (1992-11-03),
5. 5098769 - Two-shot molded article for use in circuit formation (1992-03-24),
6. 4806586 - Reinforced molding resin composition (1989-02-21),

Title: Mikio Nakai: Innovator in Liquid-Crystal Polyester Technology

Introduction

Mikio Nakai is a prominent inventor based in Shizuoka, Japan. He has made significant contributions to the field of liquid-crystal polyester technology, holding a total of 6 patents. His work focuses on improving the properties and applications of liquid-crystal resin compositions.

Latest Patents

Nakai's latest patents include a liquid-crystal resin composition for molding applications. This innovative composition features a melt-processable polyester that has an improved fluidity and comprises a liquid-crystal polyester resin with a weight-average molecular weight ranging from about 10,000 to 200,000. It also includes a second melt-processable polyester with a weight-average molecular weight of about 1,000 to 7,000. Another notable patent addresses the challenges of molding liquid-crystal polyesters, providing unexpectedly superior processability results for this class of polymers.

Career Highlights

Throughout his career, Nakai has been associated with Polyplastics Co., Ltd., where he has played a crucial role in advancing liquid-crystal polyester technologies. His expertise has led to the development of innovative materials that enhance the performance of various applications.

Collaborations

Nakai has collaborated with notable colleagues, including Yoshiharu Suzuki and Takayuki Ishikawa. These partnerships have contributed to the successful development of his patented technologies.

Conclusion

Mikio Nakai's contributions to liquid-crystal polyester technology have established him as a key figure in the field. His innovative patents and collaborations continue to influence advancements in material science.

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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