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For the Inventor, By the Inventor

Yokohama, Japan

Ryosuke Kamei

USPTO Granted Patents = 18

Average Co-Inventor Count = 4.7

ph-index = 7

Forward Citations = 287(Granted Patents)


Location History:

  • Yokohama, JP (1985 - 1990)
  • Oita, JP (1992)
  • Kawasaki, JP (1994 - 1996)
  • Kanagawa, JP (1994 - 1997)

Company Filing History:

goldMedal9 out of 405 
 
Showa Denko Kabushiki Kaisha
 patents
silverMedal7 out of 66 
 
Showa Highpolymer Co., Ltd.
 patents
bronzeMedal1 out of 1,960 
 
Showa Denko K.k.
 patents
4. 1 out of 1 
 
Showa Highpoymer Co., Ltd.
 patent

Years Active: 1985-1997

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18 patents (USPTO):Explore Patents
1. 5609888 - Apparatus for producing multifilaments (1997-03-11),
2. 5530058 - Polyester resin composition (1996-06-25),
3. 5525409 - Nonwoven polyester fabric (1996-06-11),
4. 5362765 - Polyester foamed thin materials (1994-11-08),
5. 5349028 - Polyester fibers (1994-09-20),
6. 5348700 - Polyester flat and split yarn (1994-09-20),
7. 5321052 - Polyester foamed thin materials (1994-06-14),
8. 5314927 - Polyester foamed articles and method for producing the same (1994-05-24),
9. 5310872 - Polyester tying tape-like materials (1994-05-10),
10. 5283025 - Process for producing multifilaments (1994-02-01),
11. 5171489 - Method of producing composite staple fibers consisting of resin matrix (1992-12-15),
12. 4966809 - Water-absorbing composite body (1990-10-30),
13. 4931005 - Apparatus for the production of elastic absorbent (1990-06-05),
14. 4902463 - Elastic absorbent and process for production thereof (1990-02-20),
15. 4850533 - Telescopic drinking straw (1989-07-25),

Title: Ryosuke Kamei: Innovator in Multifilament Production and Biodegradable Materials

Introduction

Ryosuke Kamei is a prominent inventor based in Yokohama, Japan, known for his significant contributions to the fields of multifilament production and biodegradable materials. With a total of 18 patents to his name, Kamei has made remarkable advancements that have the potential to impact various industries.

Latest Patents

Among his latest innovations is an apparatus for producing multifilaments, which features a spinneret melt that spins polyolefin at a first temperature into filaments. This apparatus includes a cooling duct that cools the filaments via convection at a second temperature, followed by a chill roll that conducts conductive cooling at a third temperature. Finally, heated drawing rolls continuously draw the filaments at a high draw ratio. Another notable patent is his aliphatic polyester resin composition, which boasts a low combustion heat. This composition is characterized by a filler mixed with an aliphatic polyester having a number-average molecular weight of at least 10,000, synthesized from glycol and aliphatic polybasic acid or its derivatives. The resulting sheet formed from this composition exhibits excellent tensile strength, stiffness, and impact strength, while also being biodegradable.

Career Highlights

Ryosuke Kamei has worked with notable companies such as Showa Denko and Showa Highpolymer Co., Ltd.

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