Yokohama, Japan

Yoshihiko Hika

This inventor holds 5 USPTO granted patents. Top assignee: Fujitsu Corporation. Active years: 1976-1987.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Yoshihiko Hika. Retrieved from https://idiyas.com/inventor/yoshihiko-hika

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 = 2.9

ph-index = 4

Forward Citations = 87(Granted Patents)


Location History:

  • Tokyo, J (1976)
  • Kawasaki, JA (1977)
  • Yokohama, JP (1982 - 1987)

Company Filing History:


Years Active: 1976-1987

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5 patents (USPTO):Explore Patents

Title: The Innovations of Yoshihiko Hika

Introduction

Yoshihiko Hika is a prominent inventor based in Yokohama, Japan. He has made significant contributions to the field of semiconductor technology, particularly in the development of nonvolatile memory devices. With a total of 5 patents to his name, Hika's work has had a lasting impact on the industry.

Latest Patents

Hika's latest patents include innovative designs for nonvolatile semiconductor memory devices. One of his notable inventions features a memory cell that comprises a floating-gate, a control gate, and a single impurity diffusion region. This device utilizes a small depletion region and a large depletion region to represent the binary information '1' and '0'. Another patent describes a floating-gate type nonvolatile semiconductor memory device that includes a floating-gate divided into two conductive regions with opposite conductivity types. In this design, the erase operation is achieved through avalanche breakdown within the floating-gate.

Career Highlights

Yoshihiko Hika has built a successful career at Fujitsu Corporation, where he has been instrumental in advancing semiconductor technologies. His expertise and innovative spirit have positioned him as a key figure in the development of cutting-edge memory devices.

Collaborations

Hika has collaborated with notable colleagues, including Akira Takei and Takashi Miida. Their combined efforts have contributed to the success of various projects within the semiconductor field.

Conclusion

Yoshihiko Hika's contributions to nonvolatile semiconductor memory devices highlight his innovative spirit and dedication to advancing technology. His work continues to influence the industry and pave the way for future developments.

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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