Yokkaichi, Japan

Mitsutoshi Narukawa

This inventor holds 8 USPTO granted patents and 6 EPO patents. Top assignees: Mitsubishi Materials Corporation, Denki Kagaku Kogyo Kabushiki Kaisha, Hi-Silicon Co., Ltd.. Active years: 1994-2017.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Mitsutoshi Narukawa. Retrieved from https://idiyas.com/inventor/mitsutoshi-narukawa

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


% Patents Active = 62.5

 

Average Co-Inventor Count = 1.6

ph-index = 2

Forward Citations = 29(Granted Patents)


Company Filing History:


Years Active: 1994-2017

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8 patents (USPTO):Explore Patents

Title: The Innovative Mind of Mitsutoshi Narukawa

Introduction

Mitsutoshi Narukawa, residing in Yokkaichi, Japan, is a prominent inventor with a total of eight patents to his name. His work primarily focuses on advancements in the production methods of trichlorosilane, a crucial compound in the production of silicon-based materials. Narukawa’s innovations have significantly contributed to the efficiency and effectiveness of chemical processes utilized in various industries.

Latest Patents

Narukawa's latest patents include a groundbreaking apparatus and method for producing trichlorosilane. The apparatus designed by Narukawa enables a seamless reaction between metallurgical grade silicon powder and hydrogen chloride gas. The innovative design allows for fluidization of the silicon powder, enhancing the reaction's efficiency while discharging the generated trichlorosilane from the reactor. This apparatus incorporates multiple gas flow controlling members and a heat transfer tube, promoting superior temperature management throughout the process.

Additionally, Narukawa's method for manufacturing trichlorosilane includes a sequence of reactions and distillation procedures. This method involves the reaction of metallurgical grade silicon with silicon tetrachloride and hydrogen to produce a reaction gas, which is then condensed and refined through a dual distillation system. His meticulous approach ensures that aluminum chloride concentration remains at optimal levels, improving the overall quality of the trichlorosilane produced.

Career Highlights

Narukawa has garnered valuable experience working at notable organizations such as Mitsubishi Materials Corporation and Mitsubishi Materials Polycrystalline Silicon Corporation. His tenure at these companies has allowed him to develop his expertise in materials science and chemical engineering, thereby contributing to innovative solutions in silicon production.

Collaborations

Throughout his career, Narukawa has collaborated with esteemed colleagues like Seiichi Kirii and Hisayuki Takesue. These partnerships have fostered an environment of creativity and innovation, propelling advancements in their shared field of expertise.

Conclusion

Mitsutoshi Narukawa's contributions to the field of chemical engineering, particularly in the production of trichlorosilane, underscore his status as a noteworthy inventor. With a solid portfolio of patents and a strong professional network, Narukawa continues to inspire advancements in the industry, paving the way for future innovations. His work not only enhances production efficiency but also sets a high standard for scientific ingenuity in the field.

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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