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For the Inventor, By the Inventor

Suwa, Japan

Yasuhiko Nakazawa

This inventor holds 10 USPTO granted patents. Top assignee: Seiko Epson Corporation. Active years: 1988-1996.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Yasuhiko Nakazawa. Retrieved from https://idiyas.com/inventor/yasuhiko-nakazawa

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

USPTO Granted Patents = 10

% Patents Active = 100.0

Average Co-Inventor Count = 3.3

ph-index = 4

Forward Citations = 71(Granted Patents)


Company Filing History:

goldMedal10 out of 34,296 
 
Seiko Epson Corporation
 patents

Years Active: 1988-1996

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10 patents (USPTO):Explore Patents
1. 5527118 - Wire dot print head and method for manufacturing same (1996-06-18),
2. 5368401 - Wire dot print head with rotating lever (1994-11-29),
3. 5281037 - Wire dot print head and method for manufacturing same (1994-01-25),
4. 5236266 - Stacked print wire driving device for wire type dot printer (1993-08-17),
5. 5174663 - Wire dot print head and method for manufacturing same (1992-12-29),
6. 5048985 - Wire guide device for wire dot printer (1991-09-17),
7. 4915524 - Print wire guiding device for wire type dot printer (1990-04-10),
8. 4913570 - Print wire driving device for wire type dot printer (1990-04-03),
9. 4881832 - Print wire driving device for wire type dot printer (1989-11-21),
10. 4767227 - Print wire driving device for wire type dot printer (1988-08-30),

Title: Biography of Yasuhiko Nakazawa

Introduction

Yasuhiko Nakazawa is a prominent inventor based in Suwa, Japan. He is known for his significant contributions to the field of printing technology, particularly in the development of wire dot print heads. With a total of 10 patents to his name, Nakazawa has made a lasting impact on the industry.

Latest Patents

Among his latest innovations are two notable patents related to wire dot print heads. The first patent describes an improved wire dot print head designed for increased integrated density. This invention features a frame that houses multiple drive coils. A lever drives the print wires, which are mounted at one end and designed to rotate about a support member. When an excitement current flows through the coil, the lever moves, causing the print wires to strike a platen. The second patent also focuses on a wire dot print head with a rotating lever, incorporating similar mechanisms to enhance printing efficiency.

Career Highlights

Yasuhiko Nakazawa has dedicated his career to advancing printing technology. He works at Seiko Epson Corporation, a leading company in the printing and imaging industry. His innovative designs have contributed to the development of high-performance printing solutions that meet the demands of modern users.

Collaborations

Throughout his career, Nakazawa has collaborated with talented individuals in the field. Notable coworkers include Akio Mitsuishi and Tak

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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