Sodegaura, Japan

Masaru Nakagawa

This inventor holds 24 USPTO granted patents and 9 EPO patents, primarily in Solid Electrolytes. Top assignees: Idemitsu Kosan Company, Limited, Idemitsu Petrochemical Co., Ltd., Other. Active years: 1994-2026.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Masaru Nakagawa. Retrieved from https://idiyas.com/inventor/masaru-nakagawa

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile


% Patents Active = 95.8

 

Average Co-Inventor Count = 4.6

ph-index = 7

Forward Citations = 123(Granted Patents)


Location History:

  • Icihara, JP (1999)
  • Ichihara, JP (1994 - 2002)
  • Chiba, JP (2003 - 2019)
  • Sodegaura, JP (2011 - 2023)

Company Filing History:


Years Active: 1994-2026

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Areas of Expertise:
Sulfide Solid Electrolyte
Glass Electrolyte
Lithium Battery
Polycarbonate Copolymer
Polypropylene Compositions
Propylene Resin
Polyolefinic Resin
Block Copolymer
Resin Composition
24 patents (USPTO):Explore Patents

**Title: Masaru Nakagawa: Innovator in Solid Electrolyte Technology**

Introduction

Masaru Nakagawa, based in Sodegaura, Japan, is an accomplished inventor known for his significant contributions to solid electrolyte technology. With a portfolio of 23 patents, Nakagawa has been at the forefront of innovation in this critical field, focusing on enhancing the performance and efficiency of solid electrolytes for various applications.

Latest Patents

One of Nakagawa's latest inventions is a sulfide solid electrolyte that incorporates lithium, phosphorus, sulfur, chlorine, and bromine. This novel electrolyte demonstrates distinct characteristics in powder X-ray diffraction analysis. Notably, it has two diffraction peaks: Peak A at 2θ=25.2±0.5 degrees and Peak B at 2θ=29.7±0.5 degrees. These peaks satisfy specific mathematical criteria, which are crucial for its application (A). Furthermore, the molar ratios of chlorine to phosphorus (Cl/P) and bromine to phosphorus (Br/P) are meticulously defined, falling within the ranges of 1.2 < c < 1.9 and 0.845 < d < 1.200, respectively. This innovative approach marks a significant stride in electrolyte technology.

Career Highlights

Throughout his career, Nakagawa has worked with prestigious companies, including Idemitsu Kosan Company, Limited and Idemitsu Petrochemical Co., Ltd. His experiences in these organizations have equipped him with the knowledge and resources necessary to advance his research and innovative endeavors.

Collaborations

In his professional journey, Nakagawa has collaborated with notable colleagues, including Kota Terai and Futoshi Utsuno. These partnerships have played an essential role in fostering innovation and enhancing the quality of his inventions.

Conclusion

Masaru Nakagawa's contributions to the field of solid electrolyte technology exemplify his dedication to innovation and excellence. With a robust patent portfolio and impactful collaborations, Nakagawa continues to be a leading figure in the advancement of modern materials and energy solutions. Through his work, he not only contributes to scientific progress but also paves the way for future advancements in this vital area.

Profile summary based on public USPTO records.
Data Sources: USPTO Patent Grant XML, Patent Center, EPO & CIPO • Normalized by IDiyas Innovation Graph. Methodology & provenance architecturePlease report any incorrect information to [email protected]
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