Company Filing History:

16 out of 2,269

Idemitsu Kosan Company, Limited

patents

4 out of 555

Idemitsu Petrochemical Co., Ltd.

where one patent can have more than one assignee

Years Active: 1991-1997

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20 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 5698652 - Styrenic polymer and molded article (1997-12-16),

2. 5612452 - Process for purification of styrenic polymer (1997-03-18),

3. 5518817 - Resin laminate containing syndiotactic styrene-based polymer (1996-05-21),

4. 5389431 - Nonwoven fabric and process for producing same (1995-02-14),

5. 5373031 - Styrene-based polymer moldings and process for production thereof (1994-12-13),

6. 5357014 - Styrenic resin molding and process for producing same (1994-10-18),

7. 5346950 - Resin composition (1994-09-13),

8. 5322869 - Styrene-based resin composition and process for production of moldings (1994-06-21),

9. 5292587 - Material for extrusion molding and process for preparation of molding (1994-03-08),

10. 5286762 - Styrene-based polymer moldings and process for production thereof (1994-02-15),

11. 5270353 - Resin composition (1993-12-14),

12. 5183871 - Styrene polymer molding material and process for preparing same (1993-02-02),

13. 5164479 - Process for preparation of molding product from syndiotactic styrene (1992-11-17),

14. 5156797 - Nonwoven fabrics (1992-10-20),

15. 5145950 - Method of storing food or plant materials by wrapping with a stretched (1992-09-08),

Title: Innovative Contributions of Komei Yamasaki

Introduction

Komei Yamasaki is a distinguished inventor based in Sodegaura, Japan, renowned for his significant contributions to the field of polymer chemistry. With a remarkable portfolio of 20 patents, he has made strides in the development and purification processes of styrenic polymers. His innovative approaches are paving the way for advancements in material science.

Latest Patents

Among his latest patents is a groundbreaking invention titled "Process for purification of styrenic polymer." This invention relates to an efficient method for purifying syndiotactic polystyrene using a combination of a poor solvent and a swelling agent. Yamasaki's process specifically enables the treatment of polystyrene under controlled water content conditions, allowing for simultaneous deactivation and deashing. This innovative approach effectively removes residual metals without the need for deashing agents, resulting in a high-grade crystalline styrenic polymer that excels in color tone.

Career Highlights

Komei Yamasaki has had an illustrious career, gaining valuable experience while working for notable companies such as Idemitsu Kosan Company, Limited, and Idemitsu Petrochemical Co., Ltd. Throughout his career, he has focused on enhancing polymer manufacturing processes, which has greatly benefited the industry through improved product quality and performance.

Collaborations

Throughout his professional journey, Yamasaki has collaborated with esteemed colleagues, including Keisuke Funaki and Takashi Sumitomo. Their teamwork has contributed to pioneering innovations in polymer technology, showcasing the importance of collaboration in driving scientific advancements.

Conclusion

Komei Yamasaki stands out as a prominent inventor with a strong commitment to innovation in the field of polymer chemistry. His latest patents reflect his dedication to improving purification processes for styrenic polymers, ultimately contributing to higher quality materials. As the industry evolves, Yamasaki's work will continue to influence the future of polymer applications and inspire new inventions.

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