Hajime Namikoshi

This inventor holds 31 USPTO granted patents, primarily in Polysaccharide Separation. Top assignee: Daicel Chemical Industries, Ltd.. Active years: 1982-1996.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Hajime Namikoshi. Retrieved from https://idiyas.com/inventor/hajime-namikoshi

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

USPTO Granted Patents = 31

% Patents Active = 100.0

Average Co-Inventor Count = 2.8

ph-index = 7

Forward Citations = 234(Granted Patents)

Company Filing History:

31 out of 1,165

Daicel Chemical Industries, Ltd.

patents

Years Active: 1982-1996

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Areas of Expertise:

Separation Agent

Polysaccharide

Acyl-Substituted

Carbamoyl-Substituted

Aliphatic Ester

Optical Resolution

Cellulose Derivatives

Graft Polymer

Fungicidal Method

Bactericidal Method

Mortar Admixture

Quaternary Ammonium Salts

31 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 5489387 - Separation agent comprising acyl- or carbamoyl-substituted polysaccharide (1996-02-06),

2. 5472599 - Separation agent comprising aliphatic or aromatic ester of polysaccharide (1995-12-05),

3. 5415780 - Separation agent comprising acyl- or carbamoyl-substituted polysaccharide (1995-05-16),

4. 5415769 - Separation agent comprising aliphatic or aromatic ester of polysaccharide (1995-05-16),

5. 5368737 - Separation agent comprising acyl-or carbamoyl-substituted polysaccharide (1994-11-29),

6. 5334311 - Separation agent comprising aliphatic or aromatic ester of polysaccharide (1994-08-02),

7. 5268098 - Separation agent comprising aliphatic or aromatic ester of polysaccharide (1993-12-07),

8. 5192444 - Separating with an agent comprising an aliphatic ester of a (1993-03-09),

9. 5137638 - Separation agent comprising acyl- or carbamoyl-substituted polysaccharide (1992-08-11),

10. 5135653 - Optical resolution with .beta.-1,4-xylan dibenzoate (1992-08-04),

11. 5089138 - Separating with an agent comprising an aliphatic ester of a (1992-02-18),

12. 5075009 - Separation agent comprising acyl- or carbamoyl-substituted polysaccharide (1991-12-24),

13. 5059328 - Separation agent comprising 1,3-glucan (1991-10-22),

14. 5041226 - Separating with an agent comprising aliphatic ester of polysaccharide (1991-08-20),

15. 5032277 - Optical resolution with .beta.-1,4-mannan tribenzoate (1991-07-16),

Title: Hajime Namikoshi - Innovator in Separation Technology

Introduction

Hajime Namikoshi, a notable inventor from Himeji, Japan, has made significant contributions to the field of chemical separations. With a remarkable total of 31 patents to his name, Namikoshi's innovative techniques focus on enhancing the efficiency and effectiveness of separating chemical substances.

Latest Patents

Among his latest patents, Namikoshi has developed a "Separation agent comprising acyl- or carbamoyl-substituted polysaccharide." This invention allows for the separation of a chemical substance by treating a mixture with a polysaccharide featuring a substituent for the hydroxyl group, either an acyl group or a carbamoyl group. His other recent patent includes a "Separation agent comprising aliphatic or aromatic ester of polysaccharide." This invention is particularly useful for the separation of various chemical substances, especially in the optical resolution of optical isomers.

Career Highlights

Hajime Namikoshi has dedicated his career to advancing research in separation technology. He is associated with Daicel Chemical Industries, Ltd., a company known for its focus on chemical solutions and innovation. Through his work, Namikoshi has gained recognition for creating practical applications that cater to complex chemical separations.

Collaborations

Throughout his career, Namikoshi has collaborated with scientists such as Tohru Shibata and Ichiro Okamoto. Together, they have engaged in groundbreaking research that has contributed to the expansion of knowledge and technology in the field of separation agents.

Conclusion

Hajime Namikoshi's innovative work in the realm of separation technology exemplifies the importance of creativity and collaboration in scientific advancement. His contributions have not only led to numerous patents but have also paved the way for improvements in the chemical industry, demonstrating the vital role inventors play in modern science and technology.

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]