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For the Inventor, By the Inventor

Tokyo, Japan

Yoshihiko Sumi

USPTO Granted Patents = 15

 


Average Co-Inventor Count = 4.7

ph-index = 4

Forward Citations = 116(Granted Patents)


Location History:

  • Hino-shi, Tokyo, JP (1993)
  • Tokyo, JP (2002 - 2012)
  • Hino, JP (1990 - 2013)
  • Yamaguchi, JP (2014)

Company Filing History:

goldMedal14 out of 1,588 
 
Teijin Limited
 patents
where one patent can have more than one assignee

Years Active: 1990-2014

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15 patents (USPTO):Explore Patents
1. 8636942 - Nonwoven fabric and process for producing the same (2014-01-28),
2. 8378091 - Cellulose derivative (2013-02-19),
3. 8263187 - Composite of support matrix and collagen, and method for production of support matrix and composite (2012-09-11),
4. 8137685 - Hyaluronic acid compound, hydrogel thereof and joint treating material (2012-03-20),
5. 8097273 - Biodegradable film having honeycomb structure (2012-01-17),
6. 7915028 - Tissue regeneration substrate, complex thereof with cells, and method for its production (2011-03-29),
7. 6346634 - Chemical compound containing a superoxide scavenger and an organic nitrate or nitrite moiety (2002-02-12),
8. 5576193 - Protein having human plasmin inhibiting activity (1996-11-19),
9. 5534255 - Monoclonal antibody specific to human .alpha..sub.2 -plasmin inhibitor (1996-07-09),
10. 5463025 - Protein having human plasmin inhibiting activity (1995-10-31),
11. 5221738 - cDNA and genomic DNA encoding the amino acid sequence of human (1993-06-22),
12. H001148 - Method of separating activated human protein C (1993-03-01),
13. 5187067 - Immunological determination of free human protein S and C4bp-protein S (1993-02-16),
14. 5101024 - Human immunoglobulin and enhancer gene fragments (1992-03-31),
15. 4902614 - Monoclonal antibody to human protein C (1990-02-20),

Title: Innovations of Yoshihiko Sumi

Introduction

Yoshihiko Sumi is a prominent inventor based in Tokyo, Japan. He has made significant contributions to the field of materials science, particularly in the development of nonwoven fabrics and cellulose derivatives. With a total of 14 patents to his name, Sumi's work is influential in various applications, including regenerative medicine.

Latest Patents

One of Sumi's latest patents is for a nonwoven fabric and the process for producing it. This innovative process involves dissolving a thermoplastic polymer in a mixed solvent and utilizing an electrospinning method to create a nonwoven fabric. The resulting fabric has a large surface area, making it suitable for cell culturing in regenerative medicine, with large gaps between filaments and a low apparent density. Another notable patent is for a cellulose derivative that possesses a suitable elastic modulus and viscosity when dissolved in water. This cellulose derivative serves as an effective adhesion barrier and is characterized by a specific molecular weight and composition.

Career Highlights

Yoshihiko Sumi is currently employed at Teijin Limited, a company known for its advancements in high-performance materials. His work at Teijin has allowed him to focus on innovative solutions that address contemporary challenges in material applications.

Collaborations

Sumi has collaborated with notable colleagues, including Yataro Ichikawa and Nobuo Aoki. These collaborations have further enhanced his research and development efforts, leading to impactful innovations in his field.

Conclusion

Yoshihiko Sumi's contributions to the field of materials science through his patents and collaborations highlight his role as a leading inventor. His work continues to influence advancements in regenerative medicine and material applications.

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