Saga, Japan

Tsuyoshi Kubota

This inventor holds 7 USPTO granted patents and 2 published patent applications and 3 EPO patents. Top assignees: Sumco Corporation, Mitsubishi Electric Corporation. Active years: 2010-2020.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Tsuyoshi Kubota. Retrieved from https://idiyas.com/inventor/tsuyoshi-kubota-68q3z4rb

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

Calculating rank
USPTO Granted Patents = 7 

% Patents Active = 100.0

 

Average Co-Inventor Count = 2.3

ph-index = 2

Forward Citations = 53(Granted Patents)


Location History:

  • Tokyo, JP (2016 - 2017)
  • Saga, JP (2010 - 2020)

Company Filing History:


Years Active: 2010-2020

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7 patents (USPTO):Explore Patents

Title: Tsuyoshi Kubota: Innovator in Semiconductor Technology

Introduction

Tsuyoshi Kubota is a prominent inventor based in Saga, Japan. He has made significant contributions to the field of semiconductor technology, holding a total of 7 patents. His work focuses on methods for evaluating and manufacturing semiconductor substrates, which are crucial for the advancement of electronic devices.

Latest Patents

Among his latest patents, Kubota has developed a method of evaluating semiconductor substrates. This method utilizes photoluminescence measurement to assess the quality of semiconductor substrates. The evaluation process involves a pretreatment of the substrate's surface, followed by irradiation with excitation light and detection of the emitted light. Additionally, he has patented a method for evaluating metal contamination in boron-doped p-type silicon wafers. This method measures the recombination lifetime of the silicon wafer over time, providing insights into potential metal contamination.

Career Highlights

Throughout his career, Tsuyoshi Kubota has worked with notable companies such as Sumco Corporation and Mitsubishi Electric Corporation. His experience in these organizations has allowed him to refine his expertise in semiconductor technology and contribute to innovative solutions in the industry.

Collaborations

Kubota has collaborated with esteemed colleagues, including Akihiro Hasegawa and Junki Oonishi. These partnerships have fostered a collaborative environment that encourages the exchange of ideas and advancements in semiconductor research.

Conclusion

Tsuyoshi Kubota's contributions to semiconductor technology through his patents and collaborations highlight his role as an influential inventor in the field. His innovative methods continue to impact the industry and pave the way for future advancements.

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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