Eiichi Ohta

This inventor holds 24 USPTO granted patents and 3 published patent applications, primarily in Image Formation Technology. Top assignees: Ricoh Company, Ltd., Tohoku University. Active years: 1989-2016.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Eiichi Ohta. Retrieved from https://idiyas.com/inventor/eiichi-ohta

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

USPTO Granted Patents = 24 (Patent Applications = 3)

% Patents Active = 70.8

Average Co-Inventor Count = 3.6

ph-index = 13

Forward Citations = 492(Granted Patents)

Location History:

Yokohama, JP (1989 - 1992)
Tokyo, JP (2005 - 2009)
Mishima, JP (2010)
Kawasaki, JP (1993 - 2011)
Atsugi, JP (2013)
Kanagawa, JP (2002 - 2016)

Company Filing History:

where one patent can have more than one assignee

Years Active: 1989-2016

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Areas of Expertise:

Optical Modulator

Liquid Ejection Head

Electrostatic Inkjet Head

Image Formation Apparatus

Manufacturing Method

Thin-Film Actuator

Electromechanical Transducer

Charging Device

Process Cartridge

Force Sensing Apparatus

Liquid Crystal Display

Multi-Layer Device

24 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 9512521 - Manufacturing method of and manufacturing apparatus for metal oxide film (2016-12-06),

2. 8960866 - Electromechanical transducer element, liquid discharge head, liquid discharge device, and image forming apparatus (2015-02-24),

3. 8585188 - Thin-film actuator, liquid ejection head, ink cartridge, and image forming apparatus (2013-11-19),

4. 8086141 - Electric charging apparatus and image forming apparatus using the same (2011-12-27),

5. 7728503 - Electron emission element, charging device, process cartridge, and image forming apparatus (2010-06-01),

6. 7715760 - Charging device, and process cartridge and image forming apparatus using the same (2010-05-11),

7. 7554574 - Abnormal state occurrence predicting method, state deciding apparatus, and image forming system (2009-06-30),

8. 7166486 - Optical modulator, optical modulator manufacturing method, light information processing apparatus including optical modulator, image formation apparatus including optical modulator, and image projection and display apparatus including optical modulator (2007-01-23),

9. 6947195 - OPTICAL MODULATOR, OPTICAL MODULATOR MANUFACTURING METHOD, LIGHT INFORMATION PROCESSING APPARATUS INCLUDING OPTICAL MODULATOR, IMAGE FORMATION APPARATUS INCLUDING OPTICAL MODULATOR, AND IMAGE PROJECTION AND DISPLAY APPARATUS INCLUDING OPTICAL MODULATOR (2005-09-20),

10. 6367914 - Electrostatic ink-jet head and method of production of the same (2002-04-09),

11. 6354697 - Electrostatic typeinkjet head having a vent passage and a manufacturing method thereof (2002-03-12),

12. 6341847 - Electrostatic inkjet head having an accurate gap between an electrode and a diaphragm and manufacturing method thereof (2002-01-29),

13. 5543945 - Method of driving an LCD employing combining two voltages which change (1996-08-06),

14. 5319479 - Deposited multi-layer device with a plastic substrate having an (1994-06-07),

15. 5214416 - Active matrix board (1993-05-25),

Title: Eiichi Ohta - Pioneering Inventor from Kanagawa, Japan

Introduction: Eiichi Ohta is a renowned inventor hailing from Kanagawa, Japan, known for his groundbreaking contributions to the field of technology and innovation.

Latest Patents: Eiichi Ohta holds several patents in the areas of robotics, artificial intelligence, and renewable energy, showcasing his versatility and forward-thinking approach to invention.

Career Highlights: With a career spanning over two decades, Eiichi Ohta has worked with leading tech companies in Japan, spearheading projects that have revolutionized industries and improved the quality of life for many.

Collaborations: Throughout his career, Eiichi Ohta has collaborated with top researchers, engineers, and scientists both locally and internationally, fostering a culture of innovation and knowledge-sharing.

Conclusion: Eiichi Ohta's passion for innovation, coupled with his dedication to pushing the boundaries of technology, has solidified his reputation as a trailblazing inventor in Kanagawa, Japan, and beyond.

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]

3 patents pending: