Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9758963 | Bearing wall and wall surface member for bearing wall | Yoshimichi Kawai, Shigeaki Tohnai, Shinichiro Hashimoto, Atsushi Sato, Tetsuro Ono | 2017-09-12 |
| 8973333 | Connecting fitting, frame provided with same, and building using frame | Masami Sugihara, Hitomi Sunagawa, Tomoya Hatae, Masayuki Ogawa, Hiroaki Kawakami | 2015-03-10 |
| 8925278 | Connecting fitting, bearing wall provided with same, and building using same | Masami Sugihara, Hitomi Sunagawa, Tomoya Hatae, Masayuki Ogawa, Hiroaki Kawakami | 2015-01-06 |
| 7882665 | Construction configurations and construction methods of steel houses | Yoshimichi Kawai, Shigeaki Tohnai | 2011-02-08 |
| 7856787 | Joint fitting between members and joint structure and joining method of upper and lower floor vertical frame members | Yoshimichi Kawai, Shigeaki Tohnai, Hiroshi Tanaka | 2010-12-28 |
| 7665271 | Joint fitting between members, joint structure of upper and lower floor vertical frame members, and method of joining | Yoshimichi Kawai, Shigeaki Tohnai, Hiroshi Tanaka | 2010-02-23 |
| 7603815 | Panel structure of steel house and panel constructing method | Yoshimichi Kawai, Shigeaki Tohnai, Hiroshi Tanaka | 2009-10-20 |