This inventor holds 11 USPTO granted patents and 1 published patent application and 2 EPO patents. Top assignees: Toshiba Tec Kabushiki Kaisha, Kabushiki Kaisha Toshiba. Active years: 2013-2018.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
Location History:
- Shizuoka-ken, JP (2015 - 2016)
- Shizuoka, JP (2013 - 2017)
- Sunto Shizuoka, JP (2017 - 2018)
- Higashigotanda Shizuoka, JP (2018)
Company Filing History:


Years Active: 2013-2018
Title: Keizaburo Yamamoto: Innovator in Inkjet Technology
Introduction
Keizaburo Yamamoto is a prominent inventor based in Shizuoka, Japan. He has made significant contributions to the field of inkjet technology, holding a total of 11 patents. His innovative approaches have advanced the manufacturing processes of inkjet print heads, showcasing his expertise and creativity in this specialized area.
Latest Patents
One of his latest patents is a method for manufacturing an inkjet print head. This method involves bonding an actuator to a base plate, where the actuator contains multiple pressure chambers aligned in a fixed direction. Each pressure chamber is formed by a piezoelectric member that alters its capacity. The process includes connecting a wire to the piezoelectric member and bonding a nozzle plate over the base plate at a specific distance. The nozzle plate features several nozzles that correspond to the pressure chambers. Additionally, the base plate is arranged in a recess of a support member, which has an ink supply aperture and an ink discharge aperture to facilitate ink circulation.
Another notable patent involves an inkjet head that comprises a substrate and a piezoelectric unit with multiple piezoelectric elements. These elements are arranged along the substrate's surface, creating pressure chambers between adjacent elements. The design includes lid members connected to the pressure chambers and a nozzle plate with nozzles for liquid discharge.
Career Highlights
Throughout his career, Keizaburo Yamamoto has worked with notable companies such as Toshiba Tec Corporation and Toshiba Corporation. His experience in these organizations has allowed him to refine his skills and contribute to groundbreaking innovations in inkjet technology.
Collaborations
Keizaburo has collaborated with talented individuals in his field, including Hideaki Nishida and Masashi Shimosato. These partnerships have fostered a creative environment that has led to the development of advanced technologies.
Conclusion
Keizaburo Yamamoto's contributions to inkjet technology through his patents and collaborations highlight his role as a leading inventor in this field. His innovative methods continue to influence the industry and pave the way for future advancements.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile