This inventor holds 7 USPTO granted patents, plus 1 CIPO patent. Top assignees: Nippon Steel Corporation, Nippon Steel Sumitomo Metal Corporation, Ns Hi-Parts Corporation. Active years: 2009-2017.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
Location History:
- Chiyoda-ku, JP (2012)
- Tokyo, JP (2009 - 2017)
Company Filing History:
6 out of 3,713 
1 out of 1,102 
1 out of 1 Years Active: 2009-2017
Title: The Innovative Contributions of Shigeaki Tohnai
Introduction
Shigeaki Tohnai is a prominent inventor based in Tokyo, Japan. He has made significant contributions to the field of construction and engineering, holding a total of 7 patents. His work focuses on innovative building techniques and materials that enhance structural integrity and efficiency.
Latest Patents
Tohnai's latest patents include a unique bearing wall and wall surface member designed for bearing walls. This invention features a pair of vertical members joined to upper and lower horizontal members, spaced apart horizontally. The wall surface member includes joint portions connected to the vertical members and circular-shaped openings arranged in a single column. The design ensures that the separation distance between the centers of the openings is shorter than the horizontal distance between the joint portions. Another notable patent is a frame construction arrangement that forms an opening in a wall of a low-rise building. This construction utilizes thin light-gauge section steel for wall frame panels, bonded with various members, while heavyweight section steel supports the roof or floor.
Career Highlights
Throughout his career, Shigeaki Tohnai has worked with notable companies such as Nippon Steel Corporation and Nippon Steel & Sumitomo Metal Corporation. His experience in these organizations has allowed him to develop and refine his innovative ideas in construction.
Collaborations
Tohnai has collaborated with several talented individuals in his field, including Yoshimichi Kawai and Kazunori Fujihashi. These partnerships have contributed to the advancement of his projects and the successful implementation of his inventions.
Conclusion
Shigeaki Tohnai's contributions to the field of construction through his innovative patents demonstrate his commitment to enhancing building techniques. His work continues to influence the industry and inspire future innovations.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile