This inventor holds 3 USPTO granted patents and 3 published patent applications. Top assignees: Hitachi High-Tech Corporation, Mitsubishi Heavy Industries Machinery Technology Corporation, Yokowo Co., Ltd.. Active years: 2025-2026.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
Company Filing History:
2 out of 1,398 
1 out of 25 
1 out of 30 Years Active: 2025-2026
Title: Koki Yoshida: Inventor in Medical and Industrial Technology
Introduction
Koki Yoshida is an inventor based in Tokyo, Japan. His patent work includes technologies for radiation therapy and medical instruments. He is associated with Hitachi High-Tech Corporation and Yokowo Co., Ltd. His portfolio includes 3 patents.
Latest Patents
One of Yoshida’s latest inventions is a multileaf collimator and radiation therapy device. The invention aims to determine the position of each leaf accurately using a design that is straightforward to manufacture. It features a reflective surface on a leaf’s peripheral end, allowing light from a source to be reflected. The described surface may be created through reflection processing.
Another listed invention is an electrode portion of a cautery puncture needle, reflecting Yoshida’s work on medical-device technology.
Career Highlights
Yoshida’s listed company affiliations include Hitachi High-Tech Corporation and Yokowo Co., Ltd. His patent subjects span radiation therapy equipment and cautery-related instruments.
Collaborations
Koichi Sakai and Takashi Ishizuka are identified as Yoshida’s coworkers.
Conclusion
Koki Yoshida’s patent portfolio highlights contributions to medical technology, including radiation therapy equipment and cautery instruments.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile