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For the Inventor, By the Inventor

Toyokawa, Japan

Junichiro Naito

USPTO Granted Patents = 10

Average Co-Inventor Count = 3.5

ph-index = 7

Forward Citations = 159(Granted Patents)


Location History:

  • Toyokawa, JA (1976)
  • Aichi, JP (1987)
  • Toyokawa, JP (1980 - 1988)

Company Filing History:

goldMedal8 out of 1,600 
 
Nippon Soken, Inc.
 patents
silverMedal2 out of 3,083 
 
Toyoda Gosei Co., Ltd.
 patents

Years Active: 1976-1988

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10 patents (USPTO):Explore Patents
1. 4734323 - Vibration damping soundproof sheets for use in vehicles (1988-03-29),
2. 4707528 - Polyamide resin composition (1987-11-17),
3. 4368025 - Extrusion device for producing honeycomb structures (1983-01-11),
4. 4362495 - Extrusion device for forming a honeycomb structure (1982-12-07),
5. 4349329 - Extrusion device for producing honeycomb structures (1982-09-14),
6. 4240254 - Exhaust gas purifying apparatus for multicylinder internal combustion (1980-12-23),
7. 4224302 - Process for producing an alumina catalyst carrier (1980-09-23),
8. 4216653 - Exhaust gas purifying system for internal combustion engines (1980-08-12),
9. 4199938 - Method of operating a three-way catalyst for internal combustion engines (1980-04-29),
10. 3994175 - Device for detecting specific gravity and level of liquid (1976-11-30),

Title: Junichiro Naito: A Pioneer in Vibration Damping and Soundproofing Technologies

Introduction

Junichiro Naito is a renowned inventor based in Toyokawa, Japan, with a remarkable portfolio that includes 10 patents. His expertise lies in developing innovative materials that enhance soundproofing and vibration damping in vehicles, showcasing his commitment to improving automotive technology.

Latest Patents

Among Naito's latest contributions to the field are two notable patents. The first is a **vibration damping soundproof sheet for use in vehicles**, designed to provide a flat surface irrespective of the vehicle's uneven configuration. The soundproof layer uses a formed rubber blend that incorporates a foaming agent along with other rubber blending agents, comprising 15 to 85% by weight of 1,2-polybutadiene.

The second patent focuses on a **polyamide resin composition** that enhances material properties. This composition blends a polyamide resin with either a polyamide-rubber copolymer or polyolefin resin, coupled with a tackiness providing resin. This blend strategically allocates 20 to 80% by weight for tackiness providing resin based on the overall composition, offering significant versatility in application.

Career Highlights

Naito has sharpened his skills and expanded his knowledge throughout a distinguished career, working with prominent companies like Nippon Soken, Inc. and Toyoda Gosei Co., Ltd. His experience in these organizations has allowed him to push the boundaries of material science and innovate practical solutions for the automotive industry.

Collaborations

Throughout his career, Naito has collaborated with accomplished coworkers such as Mitsuru Asano and Shinichi Yamamoto. Their combined expertise in the field has facilitated groundbreaking advancements that have significant implications for vehicle safety and performance.

Conclusion

Junichiro Naito's inventive spirit and dedication to developing soundproof and vibration damping technologies have solidified his reputation as a leading figure in the automotive sector. His patented innovations not only enhance vehicle comfort but also contribute to the overall safety and efficiency of modern automobiles. As automotive technology continues to evolve, Naito's contributions will remain pivotal in shaping a quieter and smoother driving experience.

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