This inventor holds 4 USPTO granted patents and 4 published patent applications. Top assignee: Daifuku Ltd.. 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: Tomohiko Kawashima: Inventor in Material-Handling Technology.
Introduction
Tomohiko Kawashima is an inventor based in Shiga, Japan, whose work includes innovations in automated material-handling equipment. His patent portfolio includes 4 patents, and he works at Daifuku Ltd.
Latest Patents
Kawashima’s listed patents address stacker-crane design and article transport systems.
- **Stacker crane.** This invention reduces the weight of a stacker crane’s carriage. It describes a mast, a carriage that can move vertically along the mast, and a movable section mounted on the carriage. A movement-control instrument supplies motive power to the movable section and is positioned outside the carriage.
- **Article transport device.** This invention detects wear in guide rollers used in an article transport device. Sensors are attached to the frame and positioned closer to their respective guide-roller pairs than to the corresponding wheels, enabling the device to sense wear in either guide roller.
Career Highlights
At Daifuku Ltd., Kawashima’s patented work focuses on practical engineering challenges in material handling. His inventions address both reducing equipment weight and monitoring components for wear.
Collaborations
Kawashima’s listed coworker is Ryo Nakagawa. Their shared association with the patent information reflects collaborative work in the field of article transport and material-handling technology.
Conclusion
Tomohiko Kawashima’s patents demonstrate an engineering focus on improving stacker-crane design and detecting wear in article transport equipment.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile