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For the Inventor, By the Inventor

Nagano, Japan

Toshio Narita

This inventor holds 5 USPTO granted patents. Top assignee: Seiko Epson Corporation. Active years: 1990-1997.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Toshio Narita. Retrieved from https://idiyas.com/inventor/toshio-narita-0j43ierc

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

Calculating rank
USPTO Granted Patents = 5

% Patents Active = 100.0

Average Co-Inventor Count = 1.6

ph-index = 4

Forward Citations = 60(Granted Patents)


Company Filing History:

goldMedal5 out of 34,305 
 
Seiko Epson Corporation
 patents

Years Active: 1990-1997

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5 patents (USPTO):Explore Patents
1. 5604522 - Ink jet head and a method of manufacturing the ink jet head (1997-02-18),
2. 5252994 - Ink-jet recording head (1993-10-12),
3. 5231420 - Thermal print head (1993-07-27),
4. 5091736 - Thermal print head (1992-02-25),
5. 4973986 - Thermal print head (1990-11-27),

Title: Innovations of Toshio Narita

Introduction

Toshio Narita is a prominent inventor based in Nagano, Japan. He has made significant contributions to the field of inkjet technology, holding a total of 5 patents. His work has been instrumental in advancing the capabilities of inkjet printing systems.

Latest Patents

One of Narita's latest patents is focused on an inkjet head and a method of manufacturing the inkjet head. This innovative ink-jet recording head features two piezoelectric substrates positioned opposite each other in polarization direction. Grooves are formed across the interface of the two substrates at a predetermined pitch to create cavities. Each cavity is opened to the atmosphere and includes an orifice designed for squirting ink drops. The cavities are equipped with electrodes on their inner surfaces. When a voltage of one polarity is applied to the electrode for the cavity generating ink drops, and a voltage of the opposite polarity is applied to the electrodes for the adjacent cavities, the diaphragms separating the three cavities deform in a shear mode. This deformation reduces the capacity of the cavity generating ink drops, allowing the ink to squirt outward from the orifice.

Career Highlights

Toshio Narita is associated with Seiko Epson Corporation, a leading company in the printing technology sector. His work has significantly impacted the development of advanced inkjet printing solutions.

Collaborations

Narita has collaborated with notable coworkers such as Shinri Sakai and Masaru Hoshino, contributing to various innovative projects within the company.

Conclusion

Toshio Narita's contributions to inkjet technology exemplify the spirit of innovation in the field. His patents and collaborations continue to influence advancements in printing 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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