Yokohama, Japan

Akihiro Kajita

This inventor holds 56 USPTO granted patents and 17 published patent applications, primarily in Semiconductor Technology (CPC class H01L). Top assignees: Kabushiki Kaisha Toshiba, Kioxia Corporation, Toshiba Memory Corporation. Active years: 1998-2026.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Akihiro Kajita. Retrieved from https://idiyas.com/inventor/akihiro-kajita

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

USPTO Granted Patents = 56 

% Patents Active = 71.4

Average Co-Inventor Count = 3.8

ph-index = 10

Forward Citations = 401(Granted Patents)

Forward Citations (Not Self Cited) = 387(Dec 10, 2025)


Inventors with similar research interests:


Location History:

  • Yokohoma, JP (2002)
  • Kanagawa-ken, UA (2012)
  • Kanagawa, JP (2011 - 2014)
  • Tsukuba Ibaraki, JP (2019)
  • Yokohama, JP (1998 - 2020)
  • Yokkaichi, JP (2015 - 2023)
  • Yokkaichi Mie, JP (2015 - 2024)

Company Filing History:


Years Active: 1998-2026

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Areas of Expertise:
Semiconductor Device
Memory Device
Graphene Interconnection
Manufacturing Method
Non-Volatile Memory
Storage Device
Conductive Film
Carbon Nanotube
Sensor
Lithography Template
Interconnect
Catalyst Layer
56 patents (USPTO):Explore Patents

Title: The Innovative Mind of Akihiro Kajita: A Pioneer in Semiconductor Technology

Introduction:

Akihiro Kajita, based in Yokohama, Japan, is a prolific inventor known for his significant contributions to the field of semiconductor technology. With a remarkable tally of 53 patents, Kajita has established himself as a leading figure in the development of advanced memory devices.

Latest Patents:

Kajita’s latest inventions include two notable patents that showcase his expertise in semiconductor memory devices. The first patent describes a semiconductor memory device with varying fluorine concentrations in sub conductive layers. This device features a complex structure, including a first insulating layer, conductive layers, and pillars, which facilitate improved performance and reliability.

The second patent outlines a semiconductor memory device along with its manufacturing method. This invention incorporates a semiconductor substrate, insulating layers, and a gate electrode layer, highlighting innovations in material composition, including a metal film incorporating titanium and silicon. Both patents reflect Kajita’s commitment to enhancing semiconductor technology through meticulous design and engineering.

Career Highlights:

Throughout his career, Akihiro Kajita has worked with esteemed companies, including Kabushiki Kaisha Toshiba and Kioxia Corporation. His experiences in these organizations have greatly influenced his inventions, allowing him to apply theoretical knowledge to practical applications effectively.

Collaborations:

Kajita has collaborated with notable colleagues, including Makoto Wada and Tadashi Sakai. These partnerships have fostered a dynamic exchange of ideas, contributing to his innovative thinking and the successful development of groundbreaking memory devices.

Conclusion:

Akihiro Kajita's contributions to semiconductor technology are invaluable, characterized by his extensive patent portfolio and collaborations with other talented professionals. His work continues to inspire advancements in the industry, paving the way for future innovations in semiconductor 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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