This inventor holds 1 USPTO granted patent and 2 published patent applications. Top assignee: Hitachi High-Tech Corporation. Active years: 2026.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
Company Filing History:
Years Active: 2026
Title: Hitoyuki Tomotsune: Inventor of an Optical Filtering Device.
Introduction
Hitoyuki Tomotsune is an inventor based in Tokyo, Japan, associated with Hitachi High-Tech Corporation. His work includes an invention designed to improve the reliability of optical filtering devices used in optical inspection.
Latest Patents
Tomotsune is named on 1 patent: “Optical Filtering Device, Method of Controlling Optical Filtering Device, and MEMS Shutter.” The invention describes a voltage-controlled shutter that moves within an opening in a substrate. A sticking-prevention feature helps keep the shutter from adhering to the opening’s wall when opened, supporting reliable operation in spatial filters for optical inspection equipment.
Career Highlights
Tomotsune’s listed patent work connects him with Hitachi High-Tech Corporation and addresses a practical reliability challenge in microelectromechanical shutter design.
Collaborations
Masatoshi Kanamaru is identified as Tomotsune’s coworker and collaborator associated with the patent.
Conclusion
Hitoyuki Tomotsune’s patent focuses on preventing shutter adhesion, contributing to the reliability of optical filtering devices used in inspection systems.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile