Tokyo, Japan

Keiji Hosotani

USPTO Granted Patents = 59 

Average Co-Inventor Count = 2.2

ph-index = 13

Forward Citations = 585(Granted Patents)

Forward Citations (Not Self Cited) = 554(Dec 10, 2025)


Inventors with similar research interests:


Location History:

  • Tokyo, JP (2003 - 2008)
  • Sagamihara, JP (2010 - 2013)
  • Palo Alto, CA (US) (2013)
  • Yokohama, JP (1999 - 2014)
  • Seoul, KR (2016 - 2019)
  • Mie, JP (2020 - 2022)
  • Yokkaichi Mie, JP (2019 - 2023)
  • Yokkaichi, JP (2023)

Company Filing History:


Years Active: 1999-2025

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Areas of Expertise:
Semiconductor Memory Device
Magnetic Memory Device
Magnetoresistive Element
Non-Volatile Semiconductor Memory
Magnetic Random Access Memory
Resistance Change Memory
Data Read Method
Memory Device Manufacturing
Integrated Circuit Device
Tunnel Magneto Resistive Effects
Magnetic Shield Layer
Testing Method
59 patents (USPTO):Explore Patents

Title: Innovator Spotlight: Keiji Hosotani, Tokyo's Prolific Inventor

Introduction:

Keiji Hosotani is a distinguished inventor hailing from Tokyo, Japan, known for his groundbreaking work in the field of semiconductor technology. With a remarkable total of 58 patents to his name, Keiji Hosotani has consistently pushed the boundaries of innovation in the tech industry.

Latest Patents:

Among his latest patents is the groundbreaking "Semiconductor memory device," introducing a novel architecture that enhances memory cell efficiency and performance. Another notable patent is the "Semiconductor device and semiconductor storage device," showcasing his expertise in developing cutting-edge semiconductor solutions for advanced electronics.

Career Highlights:

Keiji Hosotani has worked with renowned companies such as Toshiba and its subsidiary, Toshiba Memory Corporation, where he honed his skills and made significant contributions to the semiconductor industry. His innovative approaches have paved the way for next-generation technologies and have earned him a stellar reputation among his peers.

Collaborations:

Throughout his career, Keiji Hosotani has collaborated with esteemed colleagues, including Yoshiaki Asao and Tatsuya Kishi. Together, they have worked on various projects, shared insights, and collectively advanced the field of semiconductor technology with their combined expertise and innovative spirit.

Conclusion:

In conclusion, Keiji Hosotani stands out as a visionary inventor whose prolific work has left an indelible mark on the semiconductor industry. His dedication to innovation, coupled with his technical prowess, continues to inspire the next generation of inventors and engineers, shaping the future of technology in Japan and beyond.

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