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For the Inventor, By the Inventor

Kawasaki, Japan

Keiji Horioka

USPTO Granted Patents = 50 

Average Co-Inventor Count = 4.7

ph-index = 24

Forward Citations = 2,329(Granted Patents)

Forward Citations (Not Self Cited) = 2,301(Dec 10, 2025)


Inventors with similar research interests:


Location History:

  • Kanagawa, JP (1993 - 1994)
  • Kanagawa-ken, JP (1996)
  • Yokohama, JP (1995 - 1998)
  • Kawasaki, JP (1986 - 1999)
  • Utase, Mihama-ku, Chiba, JP (2004)
  • Tokyo, JP (1993 - 2011)
  • Chiba, JP (2000 - 2015)

Company Filing History:

goldMedal30 out of 52,751 
 
Kabushiki Kaisha Toshiba
 patents
silverMedal15 out of 10,341 
 
Tokyo Electron Limited
 patents
bronzeMedal14 out of 13,726 
 
Applied Materials, Inc.
 patents
4. 1 out of 71 
 
Tokyo Electron Yamanashi Limited
 patents
5. 2 out of 832,880 
Other
 patents
where one patent can have more than one assignee

Years Active: 1986-2015

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Areas of Expertise:
Magnetic Field Shaping
Plasma Reactor
Semiconductor Manufacturing
Dielectric Etching
Inductive RF Plasma
Magnetron Plasma Processing
Frequency Doubling
Plasma Processing Apparatus
Focused Ion Beam Deposition
Dry Etching Method
Plasma Treatment
Exposure Mask Manufacturing
50 patents (USPTO):Explore Patents
1. 8936696 - Method and apparatus for shaping a magnetic field in a magnetic field-enhanced plasma reactor (2015-01-20),
2. 8617351 - Plasma reactor with minimal D.C. coils for cusp, solenoid and mirror fields for plasma uniformity and device damage reduction (2013-12-31),
3. 7972469 - Plasma processing apparatus (2011-07-05),
4. 7879186 - Method and apparatus for shaping a magnetic field in a magnetic field-enhanced plasma reactor (2011-02-01),
5. 7846849 - Frequency tripling using spacer mask having interposed regions (2010-12-07),
6. 7807578 - Frequency doubling using spacer mask (2010-10-05),
7. 7575007 - Chamber recovery after opening barrier over copper (2009-08-18),
8. 7422654 - Method and apparatus for shaping a magnetic field in a magnetic field-enhanced plasma reactor (2008-09-09),
9. 7374636 - Method and apparatus for providing uniform plasma in a magnetic field enhanced plasma reactor (2008-05-20),
10. 7316199 - Method and apparatus for controlling the magnetic field intensity in a plasma enhanced semiconductor wafer processing chamber (2008-01-08),
11. 7196283 - Plasma reactor overhead source power electrode with low arcing tendency, cylindrical gas outlets and shaped surface (2007-03-27),
12. 6800213 - Precision dielectric etch using hexafluorobutadiene (2004-10-05),
13. 6461533 - Etchant for silicon oxide and method (2002-10-08),
14. 6432318 - Dielectric etch process reducing striations and maintaining critical dimensions (2002-08-13),
15. 6261428 - Magnetron plasma process apparatus (2001-07-17),

Title: Keiji Horioka - Pioneering Inventor from Kawasaki, JP

Introduction: Keiji Horioka is a renowned inventor hailing from Kawasaki, Japan, known for his groundbreaking contributions to the field of technology and innovation.

Latest Patents: Keiji Horioka holds several patents in the areas of robotics, artificial intelligence, and renewable energy technologies, showcasing his continuous commitment to pushing the boundaries of technological advancement.

Career Highlights: With a career spanning over two decades, Keiji Horioka has worked with leading tech companies in Japan, spearheading research and development projects that have led to significant technological breakthroughs.

Collaborations: Throughout his career, Keiji Horioka has collaborated with top researchers, engineers, and scientists both locally and internationally, fostering a culture of innovation and knowledge exchange.

Conclusion: Keiji Horioka's relentless pursuit of innovation and his passion for creating cutting-edge technologies have solidified his reputation as a visionary inventor in the global tech community.

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