Issued Patents All Time
Showing 1–11 of 11 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7832650 | Hot water-water mixing faucet | Isao Negishi, Eiji Seki | 2010-11-16 |
| 5004895 | Heater device used for floor material etc. and floor material with heater contained therein | Junjiro Kishigami | 1991-04-02 |
| 4913079 | Yacht | — | 1990-04-03 |
| 4709714 | Apparatus for exposing fibrous reinforcements of fiber reinforced resin body | Masahiko Yamamoto, Tadayoshi Uda, Kiyoshi Kondo, Yutaka Kondo, Kazuo Kondo | 1987-12-01 |
| 4630846 | Pipe joint | Masahiko Yamamoto, Tadayoshi Uda, Tomoyoshi Kanazawa | 1986-12-23 |
| 4624486 | Structure at resin pipe connections | Masahiko Yamamoto, Tadayoshi Uda, Tomoyoshi Kanazawa, Kenji Nakagawa | 1986-11-25 |
| 4604254 | Butterfly valve | Masahiko Yamamoto, Tadayoshi Uda, Yoshiteru Sonoda, Toshio Suyama | 1986-08-05 |
| 4518556 | Method for molding bent pipes made up of composite material | Masahiko Yamamoto, Akio Komura, Tomio Ebisu | 1985-05-21 |
| 4483670 | Method and apparatus for molding bent pipes made up of composite material | Masahiko Yamamoto, Akio Komura, Tomio Ebisu | 1984-11-20 |
| 4358264 | Centrifugal molding apparatus for manufacturing composite material pipes | Masahiko Yamamoto, Masao Wada, Tomio Ebisu | 1982-11-09 |
| 4277688 | Cask bagging device | Masahiko Yamamoto | 1981-07-07 |