This inventor holds 7 USPTO granted patents and 1 EPO patent. Top assignees: Citizen Watch Company, Ltd., Citizen Holdings Company, Ltd.. Active years: 1989-2025.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
Location History:
- Saitama, JP (1989 - 1995)
- Tokorozawa, JP (2001 - 2008)
Company Filing History:

Years Active: 1989-2025
Title: Innovative Contributions of Inventor Tadashi Mitsuhashi
Introduction
Tadashi Mitsuhashi, an accomplished inventor based in Tokorozawa, Japan, has made significant contributions to the field of machining technology. With a prolific portfolio, he holds seven patents that reflect his ingenuity and dedication to enhancing engineering processes. His innovative ideas have played a crucial role in advancing machinery used in various industrial applications.
Latest Patents
Among his recent inventions, Mitsuhashi developed a unique control method for a scraping machine, which is based on the correlation between machining force and displacement. This inventive device features a drive unit that powers a scraper and includes detection units that monitor both the position of the scraper and the machining force exerted on the workpiece. By utilizing acquisition units to gather data related to the displacement and machining force, the control unit effectively drives the machinery to maintain a prescribed relationship between these two critical parameters.
Another notable patent he holds is for a contact-type displacement measuring apparatus. This device incorporates a first movable body that reciprocates linearly, driven by a dedicated unit. A second movable body, moving in parallel, features a detachable probe designed to contact objects. This system also includes a measuring force detecting unit and a position detecting unit, allowing the control device to maintain a constant measuring force based on real-time feedback.
Career Highlights
Throughout his career, Tadashi Mitsuhashi has contributed significantly to prestigious companies such as Citizen Watch Company, Ltd. and Citizen Holdings Company, Ltd. His work in these organizations has allowed him to refine his skills and innovate within the field of manufacturing and machinery.
Collaborations
Mitsuhashi has collaborated with notable colleagues, including Shinichi Komine and Hirofumi Koike. Together, their collective expertise has fostered an environment of innovation and creativity, driving advancements in technology and engineering.
Conclusion
Tadashi Mitsuhashi stands out as a remarkable inventor whose patents enhance the functionality and efficiency of machining devices. His relentless pursuit of innovation continues to impact industries, showcasing the importance of engineering advancements in modern manufacturing. As the industrial landscape evolves, Mitsuhashi's contributions will surely remain a pivotal element of technological progress.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile