This inventor holds 1 USPTO granted patent and 4 published patent applications. Top assignees: Nhk Spring, Ltd., Subaru 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:
1 out of 54 
1 out of 2,470 
Years Active: 2026
Title: Kazuhiro Toyoshima and His Vehicle Seat Invention.
Introduction
Kazuhiro Toyoshima is an inventor associated with Yokohama, Japan. His patent work includes a vehicle-seat design that integrates adjustable seat cushioning with airflow through the seat.
Latest Patents
Toyoshima is credited with one patent. His invention, “Vehicle seat,” describes a seat cushion with a main pad body and a sliding pad that moves toward or away from it along the front-to-rear direction of the seat.
The design includes an airflow path on the side of the main pad body opposite the seating surface, along with an air-moving machine. The path extends to the face where the main pad body meets the sliding pad. A groove connects the airflow path to the seating surface, narrowing toward the seating surface compared with its wider opening toward the airflow path.
Career Highlights
Toyoshima has been associated with NHK Spring Co., Ltd. and Subaru Corporation. His vehicle-seat patent reflects work on seat structure and airflow management.
Collaborations
Toyoshima’s listed coworkers include Kenzo Yasuda and Masato Fukushima.
Conclusion
Kazuhiro Toyoshima’s patented vehicle-seat design combines a movable cushion component with a shaped airflow channel, highlighting his contributions to automotive seating innovation.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile