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For the Inventor, By the Inventor

Hachioji, Japan

Nagao Mizutani

This inventor holds 11 USPTO granted patents. Top assignee: Citizen Watch Company, Ltd.. Active years: 1979-1994.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Nagao Mizutani. Retrieved from https://idiyas.com/inventor/nagao-mizutani

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

USPTO Granted Patents = 11

% Patents Active = 100.0

Average Co-Inventor Count = 2.8

ph-index = 5

Forward Citations = 88(Granted Patents)


Location History:

  • Hachiouji, JP (1979 - 1981)
  • Tokorozawa, JP (1982)
  • Tokyo, JP (1990)
  • Hachioji, JP (1980 - 1994)

Company Filing History:

goldMedal11 out of 2,004 
 
Citizen Watch Company, Ltd.
 patents

Years Active: 1979-1994

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11 patents (USPTO):Explore Patents
1. 5289209 - Printing head for ink-jet printer (1994-02-22),
2. 4912514 - Electrophotographic printer (1990-03-27),
3. 4365550 - Printing mechanism for dot matrix printers (1982-12-28),
4. 4268182 - Device for detecting travel condition of inkribbon for printers (1981-05-19),
5. 4263847 - Printing mechanism for dot matrix impact printers (1981-04-28),
6. 4246478 - Position detector with two timing disks rotating at different speeds (1981-01-20),
7. 4234260 - Device for feeding ink ribbon (1980-11-18),
8. 4230039 - Drum printer with helically arranged type sets (1980-10-28),
9. 4188135 - Multiple inked ribbon color changeover mechanism for printing machine (1980-02-12),
10. 4184780 - Printer (1980-01-22),
11. 4145146 - Recording medium feeding apparatus for printer (1979-03-20),

Title: The Innovations of Nagao Mizutani

Introduction

Nagao Mizutani is a prominent inventor based in Hachioji, Japan. He has made significant contributions to the field of printing technology, holding a total of 11 patents. His work has greatly influenced the development of ink-jet and electrophotographic printers.

Latest Patents

Mizutani's latest patents include a printing head for ink-jet printers. This innovative design features a laminated unit that is integrally formed as a sintered ceramic product. It includes a bottom insulating plate element, a top insulating plate element, and a piezoelectric plate element. The piezoelectric plate element has a pressure chamber that can be filled with ink. When a drive pulse voltage is applied, the thickness of the piezoelectric plate element is reduced, leading to a decrease in the pressure chamber volume and the ejection of an ink-jet drop from the orifice. Another notable patent is for an electrophotographic printer, which functions as an electronic copying machine or a non-impact page printer. This printer uses a laser beam to attract toner to a latent image, which is then transferred to a recording medium. The toner image undergoes temporary fixation on an intermediate transfer medium before being permanently fixed on the recording medium through heating.

Career Highlights

Mizutani is currently employed at Citizen Watch Company, Ltd., where he continues to innovate in the field of printing technology. His work has been instrumental in advancing the capabilities of modern printers.

Collaborations

Mizutani has collaborated with notable coworkers such as Toshio Kurihara and Yasuo Okawara, contributing to various projects and innovations in printing technology.

Conclusion

Nagao Mizutani's contributions to the field of printing technology are significant and impactful. His innovative patents and ongoing work at Citizen Watch Company, Ltd. continue to shape the future of printing solutions.

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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