Chiyoda, Japan

Norio Ishitsuka

This inventor holds 36 USPTO granted patents and 5 published patent applications and 2 EPO patents, primarily in Semiconductor Devices. Top assignees: Hitachi, Ltd., Hitachi Automotive Systems, Ltd., Renesas Technology Corp.. Active years: 1993-2024.

USPTO Granted Patents = 36 

% Patents Active = 80.6


Average Co-Inventor Count = 5.0

ph-index = 7

Forward Citations = 274(Granted Patents)


Location History:

  • Ibaraki-ken, JP (2000 - 2002)
  • Niihari-Gun, JP (2001 - 2003)
  • Tsuchiura, JP (2006 - 2007)
  • Ibaraki, JP (1993 - 2008)
  • Chiyoda, JP (2003 - 2008)
  • Niihari, JP (2003 - 2009)
  • Kasumigaura, JP (2007 - 2014)
  • Hitachinaka, JP (2019)
  • Tokyo, JP (2011 - 2024)

Company Filing History:


Years Active: 1993-2024

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Areas of Expertise:
Flow-Rate Measurement
Thermal Flow Meter
Semiconductor Device
Physical Quantity Measurement
High Breakdown Voltage
Integrated Circuit
Crystal Defects
Element Isolation
Manufacturing Method
Thermal Air Flow Sensor
Production Process
Shallow Groove Isolation
36 patents (USPTO):Explore Patents

Title: The Innovative Journey of Norio Ishitsuka

Introduction: Norio Ishitsuka, a pioneering inventor hailing from Chiyoda, Japan, has made significant contributions to the world of technology through his groundbreaking innovations.

Latest Patents: Norio Ishitsuka's latest patents include advancements in artificial intelligence algorithms for autonomous vehicles, wearable health monitoring devices, and sustainable energy solutions.

Career Highlights: With a career spanning over two decades, Norio Ishitsuka has worked with leading tech companies in Japan, spearheading research and development projects that have led to numerous successful patent applications.

Collaborations: Throughout his career, Norio Ishitsuka has collaborated with top researchers, engineers, and scientists in the field, fostering a culture of innovation and excellence in all his projects.

Conclusion: Norio Ishitsuka's relentless pursuit of innovation and his passion for pushing the boundaries of technology make him a true visionary in the world of inventions. His contributions continue to inspire future generations of inventors and innovators worldwide.

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