IDiyas

For the Inventor, By the Inventor

Yokohama, Japan

Ryoji Oohashi

USPTO Granted Patents = 18

Average Co-Inventor Count = 6.7

ph-index = 3

Forward Citations = 67(Granted Patents)


Company Filing History:

goldMedal18 out of 90,594 
 
Canon Kabushiki Kaisha
 patents

Years Active: 2011-2021

where 'Filed Patents' based on already Granted Patents

18 patents (USPTO):
1. 11141974 - Print element substrate, liquid discharge head, and liquid discharge apparatus (2021-10-12),
2. 10889113 - Recording element board, liquid ejection apparatus and method of manufacturing recording element board (2021-01-12),
3. 10500851 - Print element substrate, printhead, and printing apparatus (2019-12-10),
4. 9950525 - Element substrate for liquid ejecting head and wafer (2018-04-24),
5. 9833992 - Recording-element substrate, recording head, and recording apparatus (2017-12-05),
6. 8943690 - Method for manufacturing substrate for liquid ejection head and method for manufacturing liquid ejection head (2015-02-03),
7. 8876242 - Liquid ejection head (2014-11-04),
8. 8608276 - Liquid discharge head and ink jet recording apparatus including liquid discharge head (2013-12-17),
9. 8534796 - Liquid-discharging recording head (2013-09-17),
10. 8439485 - Substrate including a detection feature for liquid discharge head and liquid discharge head (2013-05-14),
11. 8246147 - Inkjet printhead substrate, method for manufacturing inkjet printhead substrate, inkjet print head, and inkjet recording apparatus (2012-08-21),
12. 8235486 - Recording element substrate, recording head including the same, and recording head cartridge (2012-08-07),
13. 8235481 - Inkjet recording head and recording apparatus (2012-08-07),
14. 8109593 - Substrate for inkjet head and inkjet head using the same (2012-02-07),
15. 8096644 - Liquid ejection head and liquid ejection method (2012-01-17),

Title: Ryoji Oohashi: Innovator in Liquid Discharge Technologies

Introduction

Ryoji Oohashi is a notable inventor based in Yokohama, Japan. With a prolific career in the field of liquid discharge technologies, he holds an impressive portfolio of 18 patents. His innovations have significantly contributed to advancements in printing technologies, particularly in the realm of inkjet printing.

Latest Patents

Oohashi's latest patents demonstrate his expertise and forward-thinking approach. His inventions include a print element substrate, a liquid discharge head, and a liquid discharge apparatus. These innovations feature a unique arrangement of print elements and drive circuits that are positioned point-symmetrically about the center of the substrate. This design allows for optimized liquid discharge, enhancing printing efficiency. Additionally, his recording element board patent features heat-generating resistor elements designed for improved functionality, with electrodes connected strategically for maximized performance.

Career Highlights

Currently, Ryoji Oohashi is associated with Canon Kabushiki Kaisha, a leading company in imaging and printing technologies. His position allows him to push the boundaries of what is possible in liquid discharge applications. His consistent contributions to the field reflect his commitment to innovation and excellence in engineering.

Collaborations

During his career, Oohashi has collaborated with notable coworkers such as Koichi Omata and Hideo Tamura. These partnerships have likely fostered an environment of creativity and inspiration, leading to groundbreaking advancements in their respective fields.

Conclusion

Ryoji Oohashi's body of work exemplifies the spirit of innovation within the printing technology sector. His inventions not only showcase his technical skills but also his ability to envision practical solutions that enhance existing technologies. As he continues to develop new ideas and products, Oohashi remains a key figure in the evolution of liquid discharge technologies.

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