Company Filing History:

31 out of 33,404

Seiko Epson Corporation

patents

2 out of 1,111

Screen Holdings Co., Ltd.

patents

where one patent can have more than one assignee

Years Active: 1998-2025

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31 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 12358279 - Liquid ejecting apparatus (2025-07-15),

2. 10889114 - Liquid ejecting apparatus and liquid ejecting head (2021-01-12),

3. 10272676 - Liquid ejecting device, head unit, and liquid ejecting method (2019-04-30),

4. 9493000 - Liquid ejecting device, head unit, and liquid ejecting method (2016-11-15),

5. 9033443 - Liquid ejection apparatus and control method for liquid ejection apparatus (2015-05-19),

6. 8485625 - Fluid ejecting apparatus and fluid ejecting method (2013-07-16),

7. 8157341 - Printing method, printing system and storage medium having program recorded thereon (2012-04-17),

8. 8038243 - Liquid ejecting apparatus (2011-10-18),

9. 8007066 - Printing apparatus, printing method and method of manufacturing printing apparatus (2011-08-30),

10. 7841679 - Liquid ejection apparatus and liquid ejection method (2010-11-30),

11. 7686407 - Printing method, printing system, and storage medium having program recorded thereon (2010-03-30),

12. 7618106 - Liquid ejection head control method and liquid ejection head control apparatus (2009-11-17),

13. 7611214 - Liquid ejecting apparatus (2009-11-03),

14. 7585036 - Printing method, printing apparatus, printing system, and storage medium (2009-09-08),

15. 7578568 - Liquid ejection method (2009-08-25),

Title: **Toshiki Usui: Innovator in Liquid Ejecting Technology**

Introduction

Toshiki Usui, an accomplished inventor from Nagano-ken, Japan, has made significant contributions to the field of liquid ejecting technologies. With an impressive portfolio of 30 patents, Usui's work primarily focuses on innovative apparatuses that utilize reactive inks for various applications.

Latest Patents

Among his latest innovations, Usui has developed two noteworthy patents. The first, a liquid ejecting apparatus, incorporates a unique liquid ejecting unit featuring a pressure chamber filled with reactive ink and a nozzle that allows fluid communication with the chamber. This design is enhanced by a piezoelectric element that modifies the chamber's capacity in response to electrical signals, governed by a flexible wiring substrate for effective signal transmission. The elastic compliance film in the apparatus is composed of para-aramid resin, demonstrating a sophisticated approach to materials.

The second patent discusses a liquid ejecting device capable of utilizing multiple drive waveforms to operate the piezoelectric element effectively. This device boasts a cavity filled with liquid and is engineered to eject precisely controlled liquid droplets, further refining the ejection volumes through smart waveform selection. These innovative designs demonstrate Usui's commitment to advancing liquid ejecting technologies.

Career Highlights

Throughout his career, Toshiki Usui has associated with prominent companies, including Seiko Epson Corporation and Screen Holdings Co., Ltd. His roles in these organizations have provided him the platform to hone his expertise in developing cutting-edge technologies and contributing to advancements in the industry.

Collaborations

Usui's journey has not been solitary; he has collaborated with talented professionals like Takahiro Katakura and Tomoaki Abe. Together, they have contributed to the innovations that define today's liquid ejecting systems, showcasing the importance of teamwork in driving technological progress.

Conclusion

In summary, Toshiki Usui stands as an influential figure in the realm of liquid ejecting technologies. With 30 patents to his name and a career marked by collaborations with leading companies and talented individuals, Usui continues to push the boundaries of innovation, setting the stage for future advancements in the field. His work exemplifies the vital intersection of creativity, teamwork, and technology that fuels progress in today's fast-paced world.

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