Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9039367 | Propeller windmill for small-sized power generator | — | 2015-05-26 |
| 5978380 | Apparatus for establishing common signal channel | Kazutoshi Kobayashi, Shinjirou Fujii, Shinichi Araya, Sachiko Ishimoto | 1999-11-02 |
| 4856765 | Spring apparatus | Masahiro Kohno, Takayuki Kitamura, Kakuma Okazaki | 1989-08-15 |
| 4215862 | Water-surface towed target | Takashi Yoshikawa, Shigeru Kato, Hiroshi Shibazaki, Shigeaki Ishikawa, Toshio Satoh | 1980-08-05 |