This inventor holds 1 USPTO granted patent. Top assignees: Honda Motor Ltd., Ltd., Tachi-S., 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:
1 out of 891 
1 out of 8 Years Active: 2026
Title: Taku Roppongi: Vehicle Seat Innovation.
Introduction
Taku Roppongi is an inventor associated with Haga-gun, Japan. His patent work includes a vehicle-seat design intended to improve occupant support under load.
Latest Patents
Roppongi is named on one patent, “Vehicle Seat and Vehicle.” The invention places each side frame between two leg portions of an insert member. When an occupant applies a relatively large load to the cushion pad’s side, engagement between the support frame and the leg portions helps limit outward deformation and rotation of the insert member. This design aims to improve the side portions’ ability to support the occupant.
Career Highlights
Roppongi has been associated with Tachi-S, Ltd. and Honda Motor Co., Ltd. His patent reflects work on vehicle-seat structure and occupant support.
Collaborations
His listed coworkers include Yousuke Noguchi and Hiromitsu Nagatomo.
Conclusion
Taku Roppongi’s vehicle-seat patent focuses on strengthening lateral occupant support by limiting deformation of the cushion’s side portions.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile