Kamakura, Japan

Hiroyuki Takenaka

This inventor holds 31 USPTO granted patents and 3 published patent applications and 6 EPO patents, primarily in Semiconductor Memory Devices. Top assignees: Kabushiki Kaisha Toshiba, Nissan Motor Company Limited, Kioxia Corporation. Active years: 1996-2025.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Hiroyuki Takenaka. Retrieved from https://idiyas.com/inventor/hiroyuki-takenaka

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

USPTO Granted Patents = 31 

% Patents Active = 87.1

 

Average Co-Inventor Count = 2.8

ph-index = 8

Forward Citations = 229(Granted Patents)


Location History:

  • Yokohama, JP (1996)
  • Hidaka, JP (1996 - 1998)
  • Kanagawa-ken, JP (1997 - 2000)
  • Shizuoka, JP (2006)
  • Yamato, JP (2007 - 2011)
  • Sagamihara, JP (2016)
  • Kamakura, JP (2000 - 2017)
  • Kanagawa, JP (2010 - 2019)
  • Kamakura Kanagawa, JP (2016 - 2023)

Company Filing History:


Years Active: 1996-2025

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Areas of Expertise:
Semiconductor Memory Device
Magnetoresistive Memory Device
Ferroelectric Memory
Storage Device
Control Circuits
Automated Transmission
Torque Converter
Power Train
RFID System
Parts Mounter
Integrated Circuit
Wiring Group
31 patents (USPTO):Explore Patents

Title: Hiroyuki Takenaka: Innovator in Semiconductor Technology

Introduction

Hiroyuki Takenaka is a prominent inventor based in Kamakura, Kanagawa, Japan, with an impressive portfolio of 30 patents. His contributions to the field of semiconductor technology have created significant advancements, particularly in storage devices.

Latest Patents

Among his latest innovations is a cutting-edge semiconductor storage device. This device features a first and second semiconductor substrate with first and second memory cells located between them. It incorporates a first and second word line that are electrically connected to the respective memory cells. Additionally, the device contains a first transistor on the first semiconductor substrate that connects to the first word line, controlling the voltage through a wiring system, along with a second transistor performing a similar function for the second word line.

Career Highlights

Throughout his career, Hiroyuki Takenaka has been associated with notable companies such as Kabushiki Kaisha Toshiba and Nissan Motor Company Limited. His work in these organizations has helped shape modern technologies and further enhance his reputation as a leading inventor in the semiconductor industry.

Collaborations

Hiroyuki has collaborated with distinguished professionals, including Tadashi Miyakawa and Katsuhiko Hoya. These collaborations have enabled the exchange of ideas and expertise, fostering innovative solutions within the technology sector.

Conclusion

Hiroyuki Takenaka stands out as an influential inventor in the realm of semiconductor technologies. His patents and collaborations reflect a commitment to innovation, and his work continues to impact the industry positively. With each new invention, he pushes the boundaries of what is possible in semiconductor storage devices.

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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