Ryuichi Hayashi

This inventor holds 9 USPTO granted patents and 1 published patent application and 1 EPO patent. Top assignees: E.i. Dupont De Nemours and Company, Orient Chemical Industries, Ltd.. Active years: 1998-2010.

USPTO Granted Patents = 9 (Patent Applications = 1)

% Patents Active = 100.0

EPO Patents = 1

Average Co-Inventor Count = 2.3

ph-index = 3

Forward Citations = 22(Granted Patents)

Company Filing History:

9 out of 16,339

E.i. Dupont De Nemours and Company

patents

3 out of 128

Orient Chemical Industries, Ltd.

patents

where one patent can have more than one assignee

Years Active: 1998-2010

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9 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 7714045 - Colored thermoplastic resin compositions for laser welding, anthraquinone colorants therefor and molded product therfrom (2010-05-11),

2. 7513947 - Colored thermoplastic resin compositions for laser welding, specific neutral anthraquinone dyes as colorants therefor, and molded product therefrom (2009-04-07),

3. 7485675 - Colored thermoplastic resin compositions for laser welding, specific neutral anthraquinone dyes as colorants therefor, and molded product therefrom (2009-02-03),

4. 7456238 - Fabricated resin products for laser welding and including transmitting and absorbing black colorants, and colored resin compositions therefor (2008-11-25),

5. 7053140 - Colored thermoplastic resin compositions for laser welding, colorants therefor of mixtures of amine salts of anthraquinone and monoazo complex dyes, and molded product therefrom (2006-05-30),

6. 6140459 - Semi-crystalline, semi-aromatic copolymers with superior post-molding (2000-10-31),

7. 5856428 - Crystalline aromatic polyamide resin composition (1999-01-05),

8. 5770679 - Polyamide resin compositions and production process (1998-06-23),

9. 5750639 - Polyamide resin composition and molding thereof (1998-05-12),

Title: Ryuichi Hayashi: Innovator in Thermoplastic Resin Compositions

Introduction

Ryuichi Hayashi is a prominent inventor based in Tokyo, Japan. He has made significant contributions to the field of thermoplastic resin compositions, holding a total of 9 patents. His work focuses on enhancing the properties of materials used in laser welding applications.

Latest Patents

Hayashi's latest patents include innovative thermoplastic resin compositions designed for laser welding. One notable patent describes colored thermoplastic resin compositions that incorporate anthraquinone colorants. These compositions are engineered to exhibit outstanding mechanical and chemical properties once laser-welded. Another patent details thermoplastic resin compositions that utilize a mixture of neutral anthraquinone blue dye and other red dyes. This combination allows the materials to absorb visible light while effectively transmitting laser beams, thereby enhancing weldability.

Career Highlights

Throughout his career, Ryuichi Hayashi has worked with esteemed companies such as E.I. DuPont de Nemours and Company and Orient Chemical Industries, Ltd. His expertise in thermoplastic materials has positioned him as a key figure in the development of advanced welding technologies.

Collaborations

Hayashi has collaborated with notable coworkers, including Reiko Koshida and Yoshiteru Hatase. These partnerships have contributed to the advancement of his research and the successful implementation of his patented technologies.

Conclusion

Ryuichi Hayashi's innovative work in thermoplastic resin compositions has significantly impacted the field of laser welding. His contributions continue to influence the development of materials with enhanced properties and applications.