Osaka, Japan

Shotaro Maruhashi

This inventor holds 3 USPTO granted patents and 1 published patent application, plus 1 CIPO patent and 2 EPO patents. Top assignee: Kaneka Corporation. Active years: 2004-2026.

USPTO Granted Patents = 3 

% Patents Active = 66.7


 

Average Co-Inventor Count = 4.6

ph-index = 1


Location History:

  • Takasago, JP (2004)
  • Osaka, JP (2021)

Company Filing History:


Years Active: 2004-2026

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3 patents (USPTO):Explore Patents

Title: Innovations of Shotaro Maruhashi

Introduction

Shotaro Maruhashi is a notable inventor based in Osaka, Japan. He has made significant contributions to the field of expandable styrene resin particles. With a total of 3 patents, his work has garnered attention for its innovative approaches to material science.

Latest Patents

Maruhashi's latest patents include advancements in expandable styrene resin particles and foamable modified polystyrene resin particles. His expandable styrene resin particles contain 2.0 wt % to 8.0 wt % of graphite, with a mean particle size ranging from 2.5 µm to 9 µm. These particles meet specific criteria, such as a laser scattering intensity per unit solution concentration of graphite not less than 5 {%/(mg/ml)}/wt %. Additionally, the area of the graphite per unit solution concentration in 1 mm is not less than 55 ({mm/mm}/{g/g}). Furthermore, when these particles are pre-expanded into an expanded molded product with an expansion ratio of 40 times, they exhibit a quotient that is not less than 100 when calculated based on the content of graphite.

His work on foamable modified polystyrene resin particles involves a unique composition of modified polystyrene resin particles containing a blowing agent. These particles are designed to have rubber polymer particles uniformly dispersed throughout the polystyrene resin, enhancing their properties for various applications.

Career Highlights

Maruhashi is currently associated with Kaneka Corporation, where he continues to innovate in the field of materials science. His work has not only advanced the understanding of expandable resins but has also contributed to the development of new materials with enhanced properties.

Collaborations

Some of his notable coworkers include Yoshihito Yano and Katsuhiko Wakishige. Their collaborative efforts have further enriched the research and development environment at Kaneka Corporation.

Conclusion

Shotaro Maruhashi's contributions to the field of expandable styrene resin particles and modified polystyrene resin particles highlight his innovative spirit and dedication to advancing material science. His patents reflect a commitment to developing new technologies that can have a significant impact on various industries.

Profile summary based on public USPTO records.
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