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For the Inventor, By the Inventor

Miyagi, Japan

Tadahiro Ohmi

This inventor holds 53 USPTO granted patents, primarily in Plasma Processing (CPC class 134-). Top assignees: Alps Electric Co., Ltd., Frontec Incorporated, Tadahiro Ohmi. Active years: 1996-2013.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Tadahiro Ohmi. Retrieved from https://idiyas.com/inventor/tadahiro-ohmi-aivn3icc

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

Calculating rank
USPTO Granted Patents = 53

% Patents Active = 77.4

Average Co-Inventor Count = 3.4

ph-index = 16

Forward Citations = 792(Granted Patents)

Forward Citations (Not Self Cited) = 783(Dec 10, 2025)


Inventors with similar research interests:


Location History:

  • Aoba-ku, Sandai-shi, Miyagi-ken, JP (1996)
  • Tokyo, JP (1996 - 1997)
  • Ota-ku, Tokyo, JP (1997)
  • Otsuka-cho, Ota-ku, Tokyo, JP (1998)
  • Miyagi-den, JP (1999)
  • Miyagi-ken, JP (1996 - 2013)

Company Filing History:

goldMedal15 out of 4,048 
 
Alps Electric Co., Ltd.
 patents
silverMedal7 out of 37 
 
Frontec Incorporated
 patents
bronzeMedal6 out of 27 
 
Tadahiro Ohmi
 patents
4. 5 out of 8 
 
Kabushiki Kaisha Ultraclean Technology Research Institute
 patents
5. 4 out of 450 
 
Fujikin Inc.
 patents
6. 4 out of 15 
 
Stella Chemifa Kabushiki Kaisha
 patents
7. 2 out of 163 
 
Organo Corporation
 patents
8. 2 out of 4 
 
Tadashi Shibata
 patents
9. 1 out of 32 
 
Foundation for Advancement of International Science
 patents
10. 1 out of 1 
 
Fujiken, Inc.
 patent
11. 1 out of 1 
 
Kabushiki Kaiha Ultraclean Technology Research Institute
 patent
12. 1 out of 7 
 
Pre-Tech Co., Ltd.
 patents
13. 1 out of 1 
 
Tadahiro Ohmi and Tadashi Shibata
 patent
14. 1 out of 2 
 
Tadashi Shibata and Tadahiro Ohmi
 patents
15. 1 out of 10,933 
 
Tokyo Electron Limited
 patents
16. 23 out of 834,601 
Other
 patents
where one patent can have more than one assignee

Years Active: 1996-2013

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Areas of Expertise:
Plasma Processing
Welding Electrode
Chromium Oxide Film
Liquid Feed Nozzle
Micromachining
Performance Evaluation
Semiconductor Memory
Chemical Mechanical Polishing
Surface Treatment
Fluid Supply System
Plasma Treatment Equipment
Impedance Measurement
53 patents (USPTO):Explore Patents
1. 8420974 - Long life welding electrode and its fixing structure, welding head, and welding method (2013-04-16),
2. 8137787 - Metal material having formed thereon chromium oxide passive film and method for producing the same, and parts contacting with fluid and system for supplying fluid and exhausting gas (2012-03-20),
3. 8114245 - Plasma etching device (2012-02-14),
4. RE42566 - Liquid feed nozzle, wet treatment, apparatus and wet treatment method (2011-07-25),
5. RE42420 - Liquid feed nozzle, wet treatment apparatus and wet treatment method (2011-06-06),
6. 7935385 - Metal material having formed thereon chromium oxide passive film and method for producing the same, and parts contacting with fluid and system for supplying fluid and exhausting gas (2011-05-03),
7. 7312415 - Plasma method with high input power (2007-12-25),
8. 7225754 - Plasma processing apparatus including a plurality of plasma processing units having reduced variation (2007-06-05),
9. 7120556 - Performance evaluation method for plasma processing apparatus for continuously maintaining a desired performance level (2006-10-10),
10. 7095178 - Plasma processing apparatus, method for operating the same, designing system of matching circuit, and plasma processing method (2006-08-22),
11. 6954033 - Plasma processing apparatus (2005-10-11),
12. 6806438 - Plasma processing apparatus including a plurality of plasma processing units having reduced variation (2004-10-19),
13. 6801554 - Laser oscillating apparatus, exposure apparatus, and device fabrication method (2004-10-05),
14. 6797194 - Surface treating for micromachining and method for surface treatment (2004-09-28),
15. 6795796 - Performance evaluation method for plasma processing apparatus for continuously maintaining a desired performance level (2004-09-21),

Title: The Innovative Journey of Tadahiro Ohmi

Introduction:

Tadahiro Ohmi, a distinguished inventor hailing from Miyagi-ken, Japan, has made significant contributions to the field of technology through his groundbreaking innovations and patents.

Latest Patents:

Tadahiro Ohmi's latest patents focus on advancements in semiconductor technology, particularly in the development of ultra-thin transistors and energy-efficient microchips.

Career Highlights:

With a career spanning over three decades, Tadahiro Ohmi has held key positions in leading tech companies, where he spearheaded research projects that led to the creation of cutting-edge technologies.

Collaborations:

Throughout his career, Tadahiro Ohmi has collaborated with top researchers, engineers, and scientists from around the world, fostering a culture of innovation and knowledge-sharing in the tech industry.

Conclusion:

In conclusion, Tadahiro Ohmi's relentless pursuit of innovation and his passion for pushing the boundaries of technology have solidified his reputation as a visionary inventor in the realm of semiconductor technology.

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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