Tokyo, Japan

Hiroyuki Ohtake

This inventor holds 14 USPTO granted patents. Top assignees: Kabushiki Kaisha Toshiba, Unicafe Inc.. Active years: 1999-2011.

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

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

Calculating rank

% Patents Active = 57.1

Average Co-Inventor Count = 1.8

ph-index = 7

Forward Citations = 178(Granted Patents)


Location History:

  • Tokyo-To, JP (2001 - 2002)
  • Tokyo, JP (1999 - 2011)

Company Filing History:


Years Active: 1999-2011

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14 patents (USPTO):Explore Patents

Title: Hiroyuki Ohtake: Innovator in Semiconductor Technology

Introduction

Hiroyuki Ohtake is a prominent inventor based in Tokyo, Japan. He has made significant contributions to the field of semiconductor technology, holding a total of 14 patents. His work primarily focuses on NAND-type flash memory and semiconductor memory devices, which are crucial for modern electronic applications.

Latest Patents

Ohtake's latest patents include innovations in NAND-type flash memory and semiconductor integrated circuit devices. The NAND-type flash memory patent describes a memory cell array with NAND cells, where each cell can be rewritten electrically. This design connects the drain of one memory cell to the source of another neighboring cell, enhancing data storage efficiency. Additionally, the semiconductor integrated circuit device patent features a page buffer and several memory cells that write data based on the information stored in the page buffer. An accumulating counter is also included, which tracks the number of program loops used for data writing.

Career Highlights

Throughout his career, Hiroyuki Ohtake has worked with notable companies such as Toshiba Corporation and Unicafe Inc. His experience in these organizations has allowed him to develop and refine his innovative ideas in semiconductor technology.

Collaborations

Ohtake has collaborated with esteemed colleagues, including Shigeo Ohshima and Katsumi Abe. Their combined expertise has contributed to advancements in the field of memory technology.

Conclusion

Hiroyuki Ohtake'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 development of advanced memory solutions.

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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