Tsukuba, Japan

Hitoshi Kubota

This inventor holds 16 USPTO granted patents and 1 published patent application and 1 EPO patent, primarily in Magnetic Memory Technology. Top assignees: Kabushiki Kaisha Toshiba, National Institute of Advanced Industrial Science and Technology, Tohoku University. Active years: 2009-2024.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Hitoshi Kubota. Retrieved from https://idiyas.com/inventor/hitoshi-kubota-sprk9zxn

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

Calculating rank
USPTO Granted Patents = 16 

% Patents Active = 81.3


Average Co-Inventor Count = 7.4

ph-index = 7

Forward Citations = 132(Granted Patents)


Location History:

  • Ibaraki, JP (2009 - 2013)
  • Yokohama Kanagawa, JP (2016)
  • Tsukuba, JP (2011 - 2019)

Company Filing History:


Years Active: 2009-2024

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Areas of Expertise:
Quantum Bit Cell
Integrated Circuit
Phase-Locked Oscillation
Magnetic Memory
Magnetoresistive Element
Random Number Generator
Negative-Resistance Device
Current Induced Cooling
Temperature Difference Conversion
Pattern Forming
16 patents (USPTO):Explore Patents

Title: Hitoshi Kubota: Innovator in Quantum Technology

Introduction

Hitoshi Kubota is a prominent inventor based in Tsukuba, Japan. He has made significant contributions to the field of quantum technology, holding a total of 16 patents. His work focuses on developing advanced quantum bit cells and integrated circuits that have the potential to revolutionize computing.

Latest Patents

Among his latest patents are the Quantum Bit Cell and Quantum Bit Integrated Circuit. This invention addresses the challenge of creating a quantum bit cell with an easy-to-integrate structure. The quantum bit cell includes a spin torque oscillator capable of emitting microwaves with a propagation distance of 1 μm or less, and a maximum diameter of 1 μm or less. Additionally, it features a solid-state element quantum bit arranged near the spin torque oscillator, where a quantum two-level system is controlled by the emitted microwave. Another notable patent is the High-Frequency Phase-Locked Oscillation Circuit. This circuit is designed to have an extremely narrow peak width and stable frequency, solving the problem of large peak widths in oscillation spectra. It includes a magnetoresistive element that oscillates a high-frequency wave, a reference signal source, and a phase-locked loop circuit.

Career Highlights

Hitoshi Kubota has worked with notable organizations such as Toshiba Corporation and the National Institute of Advanced Industrial Science and Technology. His experience in these institutions has allowed him to develop cutting-edge technologies in quantum mechanics and electronics.

Collaborations

Some of his notable coworkers include Akio Fukushima and Shinji Yuasa. Their collaborative efforts have contributed to the advancement of quantum technologies and innovations in the field.

Conclusion

Hitoshi Kubota's work in quantum technology exemplifies the innovative spirit of modern inventors. His patents and contributions are paving the way for future advancements in quantum computing and electronics.

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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