Yokohama, Japan

Masaburo Iwabuchi

This inventor holds 5 USPTO granted patents. Top assignees: Kabushiki Kaisha Toshiba, Tokyo Shibaura Denki Kabushiki Kaisha. Active years: 1985-1992.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Masaburo Iwabuchi. Retrieved from https://idiyas.com/inventor/masaburo-iwabuchi

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


% Patents Active = 100.0

Average Co-Inventor Count = 1.6

ph-index = 5

Forward Citations = 107(Granted Patents)


Company Filing History:


Years Active: 1985-1992

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5 patents (USPTO):Explore Patents

Title: Masaburo Iwabuchi: Innovator in Semiconductor Technology

Introduction

Masaburo Iwabuchi is a notable inventor based in Yokohama, Japan. He has made significant contributions to the field of semiconductor technology, holding a total of 5 patents. His innovative work focuses on improving manufacturing processes and enhancing the efficiency of semiconductor production.

Latest Patents

Iwabuchi's latest patents include a groundbreaking dopant film and methods for diffusing impurities into semiconductor materials. This dopant film consists of an organic binder, an inorganic binder, and a compound of an impurity element for diffusion. Both surfaces of the dopant film are coated with adhesive, and releasable sheets sandwich the film. This design allows for automated alternate stacking with semiconductor wafers, which significantly reduces labor costs. The automation of this stacking process minimizes the risk of wafer breakage, thereby decreasing the breakage rate. Additionally, the improved adhesion of the semiconductor wafer leads to a reduction in the variation of diffusion depth. The manufacturing method he developed includes steps for impurity diffusion into both surfaces, dividing the wafer into two along its thickness, and polishing each divided wafer to a mirror finish opposite the impurity diffusion layer. This innovative approach reduces material loss per wafer compared to conventional methods.

Career Highlights

Throughout his career, Masaburo Iwabuchi has worked with prominent companies in the technology sector, including Toshiba Corporation and Tokyo Shibaura Electric Co., Ltd. His experience in these organizations has allowed him to refine his skills and contribute to advancements in semiconductor technology.

Collaborations

Iwabuchi has collaborated with several talented individuals in his field, including Kenji Unetsubo and Hideyoshi Ito. These partnerships have fostered a creative environment that has led to the development of innovative solutions in semiconductor manufacturing.

Conclusion

Masaburo Iwabuchi's contributions to semiconductor technology through his patents and collaborations highlight his role as a key innovator in the industry. His work continues to influence the efficiency and effectiveness of semiconductor manufacturing processes.

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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